LG&E Residential Gas_handbook

Customer Gas Piping Handbook Fifth Edition First Revision April 2009

Louisville Gas and Electric Company Customer Gas Piping HandbookResidential and Commercial Loads Less than 500,000 BTUH

Fifth Edition First Revision April 2009

1

Customer Gas Piping Handbook Fifth Edition First Revision April 2009PREFACE

PREFACELouisville Gas and Electric Company (LG&E) provides retail gas and electric service in a defined service territory in and around the Metro Louisville, Kentucky area. The Commercial & Industrial Customer Gas Piping Handbook is intended to address natural gas service issues for Commercial and Industrial customers within the prescribed service territory. This Document is intended to supplement the Commercial and Industrial Customer Gas Piping Handbook. A separate document, Electric Service Handbook, details the requirements for electric service.

Customer Gas Piping HandbookThe Customer Gas Piping Handbooks (both Commercial and Residential) prescribe LG&Es standards with respect to gas service and meter installations pursuant to the rules and regulations of the Kentucky Public Service Commission (KPSC). All piping used for gas service lines and meter installations must be installed in accordance with the specifications provided by LG&E and will be subject to inspection and testing by LG&E. In the event that special circumstances prevent compliance with the service line specifications prescribed within this handbook, LG&E will give proper consideration to alternative methods, provided that applicable regulations are not violated and that safety and reliability are not jeopardized. The Customer has the responsibility of notifying LG&E of any changes to the piping, appliances, or building structure that may affect safety or gas system performance. This Customer Gas Piping Handbook includes standards pertaining to the Customers service, meter loop and house line piping, in the interest of uniform and safe operations. The standards for piping are generally applicable for replacement or relocation of existing facilities. The Customer Gas Piping Handbook (Residential and Commercial Loads Less than 500,000 BTUH) is applicable to customers with a total connected natural gas load less than 500,000 BTUH. LG&E reserves the right to modify the requirements found in this handbook or any of its service policies, procedures and/or standards at any time. It is the responsibility of the Customer to ensure that any reference document is the version currently approved for use by LG&E. It is also the responsibility of the Customer to notify LG&E of any changes to natural gas facilities that may affect safety or natural gas system performance. By publishing this handbook, LG&E does not assume liability or responsibility for house piping, appliance installation, or appliance operation. LG&E maintains the right to refuse to supply gas to piping or appliances that are installed or operated in a potentially unsafe manner. In addition, LG&E is not responsible for continuing inspection or surveillance of Customers house piping, appliances, or appliance operation.

Louisville Gas and Electric Company Customer Gas Piping Handbook2


NATURAL GAS SAFETYSafety First Providing Safe Natural Gas ServiceThe health and safety of LG&Es customers and employees and the general public are our highest priorities. LG&E believes strongly in the concept that safety is everyones responsibility. LG&Es employees and contractors will not perform any work in areas considered to be unsafe or install or connect any natural gas facilities that are, in the opinion of our employees or contractors, unsafe or not in compliance with LG&Es requirements or governing codes and regulations. Both LG&E and customer-owned natural gas facilities must be planned, designed, built, maintained, and operated in a manner that minimizes the risk of injury and property damage during construction and throughout the life of the facility.

Personal SafetyUsing Natural Gas Safely It is important that users know how to safely use natural gas and care for natural gas appliances. One of the first steps to prevent accidents is to ensure that natural gas appliances and equipment have been properly installed, adjusted, vented and inspected. Appliances should be installed, serviced and repaired by professionals. Other safety precautions that should be taken include the following: Follow manufacturers instructions for the installation, operation and maintenance of gas equipment and appliances. Never use a kitchen range to heat a room. This action can damage the range and produce dangerous carbon monoxide (CO) gas. In addition, top burners should not be used for space heating; such usage can be a fire hazard. Since burning natural gas produces a high radiant heat, keep flammable materials (e.g., cloth, paper, paints, and solvents) away from appliances. Provide proper ventilation in areas around furnaces, water heaters, dryers, ranges, etc. Have routine maintenance performed on appliances to keep them clean and in proper working order. Keep natural gas kitchen ranges clean. Rinse and dry the burners before reinstalling. Be careful not to damage or change the settings on the range burners air shutters or sleeves. Ensure that all vents and chimneys are free from blockage. Clean or change filters on furnaces and dryers regularly. Maintain the gas lines that are located inside and outside the house to prevent leaks. The gas service lines buried from the property line to the house and all house line piping within the house are the responsibility of the property owner. LG&E will periodically survey all outside piping for leaks and will advise you if any maintenance is required on your portion of the service line. LG&E will also inform you of any corrosion that is discovered on any outside piping that is exposed to the weather and advise you to paint the affected area. Contact Kentucky 811 at 8 -1- 1 to determine the location of utility-owned service lines (including LG&Es natural gas lines) before you begin any yard excavation. This is a free service. Do not operate any electrical switches, equipment or appliances or use open flames if you smell a natural gas odor. Leaking natural gas can ignite.

i


Teach Natural Gas Safety To Your Family Every family member should know how to find and turn off the natural gas shut-off valve at the meter. This valve should be closed only in the event of a natural gas emergency in your home. If you turn off the shut-off valve, do not turn it on again. Call LG&E at (502) 589-5511 (outside Louisville at (800) 331-7370), and let us re-establish your gas service for you. Teach small children to stay away from the gas range and gas-burning appliances. Do not let children play or climb on the meter piping on the outside of the house; do not allow them to swing from or play with pipes leading to water heaters or ranges. Practice safety drills for getting the family out of the house at night in case of a natural gas emergency or any other emergency such as a fire.

What To Do If You Smell Natural Gas If you smell gas and cannot find the source(s), immediately go to a location where no natural gas odor exists, such as a neighbors house, and call LG&E at (502) 589-5511 (outside Louisville at (800) 331-7370). A spark from using a telephone or cellular telephone inside the house could ignite the gas. If the odor is faint, get everyone outside and leave doors and windows open to ventilate the area. A faint odor of gas may mean that a pilot light has gone out and should be re-lit. If the odor is strong, get everyone out of the house immediately. Never use a telephone or cellular telephone, switch a light on or off or light a match if you smell natural gas. Never look for a natural gas leak with a lighted flame or match. Do not try to re-light a gas furnace, water heater or range.

Facts About Natural Gas Natural gas is an abundant, clean burning, energy-efficient fuel. Natural gas is colorless, odorless and tasteless. As a safety precaution, a chemical called Mercaptan is added to natural gas. This chemical provides a distinctive odor that will alert persons to a potential safety hazard. Mercaptan has the smell of rotten eggs. Odors that are sometimes mistaken for natural gas can come from a variety of sources, such as petroleum products (especially gasoline), marsh gas, sewer gas and industrial gases. Natural gas is not toxic (i.e., poisonous). No health hazards exist from the exposure to natural gas. However, if present in sufficient quantities to displace the oxygen in the air, it can cause drowsiness and eventual suffocation due to lack of oxygen. Natural gas is lighter than air. When released in an open space, natural gas will rise and diffuse rapidly. If confined in a closed space, natural gas will rise to the highest level. The air in the space will be displaced from the top downward. Therefore, to ventilate a room, windows should be open from the top and bottom portions of the room. To burn or explode, natural gas must mix with air in the proper amount (i.e., 4% to 15% natural gas to air) and o o be ignited at an ignition point of 1,100 F 1,200 F. This ignition point is reached by pilot lights, flint sparks, matches, sparks from electrical switches and motors or electrostatic sparks.

ii


A properly burning natural gas flame will have a crisp blue color. If natural gas is burned without enough air, it may produce carbon monoxide, a poisonous gas. A person exposed to carbon monoxide may complain of dizziness, headache, nausea, fatigue and other flu-like symptoms. Natural gas should not be confused with liquefied petroleum gas. Liquefied petroleum gas is more commonly called L.P., bottle gas, propane, butane and various other trade names. It is heavier than air and collects in low places when not confined.

Meter TamperingIndividuals, who tamper with natural gas meters and piping to make it show less consumption or bypass the meter entirely, endanger their own lives. They also risk the lives of their family and neighbors. Meter tampering can create a dangerous situation that can lead to serious and sometimes fatal injury from fire or explosion.

iii


EXCAVATION SAFETYCall before you dig It is the LawThe Underground Facility Damage Prevention Act (KRS 367.901-367.917) was enacted by the Kentucky legislature in 1994. This law requires all persons excavating in the state of Kentucky to have underground facilities located prior to starting excavations. Violators of this law may be subject to fines and/or criminal prosecution. Kentucky 811 is the answer to the continuing problem of damage to underground facilities. Kentucky 811 provides a communication link between excavators and operators of underground utilities. Kentucky 811 is a non-profit organization made up of owners and operators of underground facilities in the Commonwealth of Kentucky.

Everyone, including the general public, should call Kentucky 811 before digging. Please call Kentucky 811 at least two business days and not more than ten business days prior to your planned excavation with the information listed below. There is no cost to the caller! Identity of contractor or excavator: name, address, etc. Dig site location: County, nearest city, inside/outside city limits, street name or highway name, address number, the nearest cross street intersection or other description if address is not available. Digging information: Type of work, depth of dig, location within property or right-of-way, method of excavation. Estimated date and time of excavation.

IN KENTUCKY CALL BEFORE YOU DIG. KNOW WHATS BELOW. ITS THE LAW Dial: 811 Or www.kentucky811.com

In turn, Kentucky 811 will contact its member companies for you to have the underground facilities located in the vicinity of your planned excavation. In addition, they will advise you as to what utilities will be notified, and will provide you with a request number for your reference and documentation. Please wait until all the facilities have been marked before initiating the excavation.

Report Unmarked Excavations Near Buried Utility Lines Please protect yourself and your neighbors by reporting digging where buried utility lines have not been located (either by paint, flags, or both) please report it to LG&E 502-627-4427

iv


RECOMMENDATIONS FOR A SUCCESSFUL PROJECT Plan your work. Planning is vital for obtaining a successful natural gas project (e.g., service, installation, or repair). It includes, but is not limited to, reading and following appropriate sections of the LG&E Customer Gas Piping Handbook, obtaining all necessary permits, deeds and/or easements, and acquiring necessary materials and equipment. If you have questions concerning your project, contact LG&E. Contact information for LG&E is located in Section 1 General Information under Important Telephone Numbers. Pressure test the house line piping. In accordance with Subsection 5.9.1, house line piping should be pressure tested to detect leaks prior to contacting LG&E for service connection. Note: LG&E will not provide natural gas service to house line piping that is leaking. Make sure the house line piping is ready. In accordance with Subsection 2.1.8 a. iii., to qualify for natural gas service, the house line piping system must be extended to an operable natural gas burning appliance(s) or to a plugged valve(s) at the proposed appliance(s) locations. In addition, the house line piping should be pressure tested to detect any leaks on the piping system. Avoid damaging the tracer wire. In accordance with Subsection 3.11.1, care must be taken to avoid damage to the tracing wire during placement and compaction of backfill. Use a clamp on the service riser. In accordance with Subsection 3.16.1 b., the service riser must be securely supported using split ring clamps or substantial mounting brackets in accordance with the applicable meter loop drawing. Polyethylene pipe or flexible riser casing must not be relied upon to contribute to the support of the meter setting. Make sure that the meter loop is not installed too low (i.e., service head adapter below grade). In accordance with Drawing Nos. GSC 30-20-004, GSC 30-20-005, and GSC 30-20-006, the meter loop shall be installed such that the bottom of service head adapter is either at a minimum of six inches (6) or a maximum of twelve inches (12) above grade. Install a shutoff valve on the house line piping going to a fireplace that is designed to burn wood or other solid fuel. In accordance with Subsection 5.2.3, the shutoff valve shall be located outside of the firebox and accessible in the same room. This valve is not a part of the fireplace. If corrugated stainless steel tubing (CSST) is used, the valve must be installed at the end of the CSST piping so that only steel fittings are used to actually connect the fireplace. In addition, this valve should be installed so that it is accessible at all times, even if it is in the basement. Be present to allow LG&E personnel access to natural gas appliances for the activation of gas service. To activate natural gas service for new service connection, service replacement, houseline repair, etc., LG&E needs access to all gas appliances. It is imperative that the customer (or a customer representative over the age of 18) be present to grant access to the premises. Allow adequate time for LG&E to get utility locates. In accordance with the Excavation Safety section, LG&E is required to provide prior notification for planned excavation work. Thus, if LG&E needs to excavate to provide gas service, it will need to wait two full business days for other utility companies to locate and mark their buried utilities with color-coded paint, flags or stakes. Provide a two foot by four foot (2 x 4) excavation hole at the property line for new or replacement service lines. In accordance with Section 3.2.2 a. ii. and 3.2.2 b., Customers are required excavate a 2 x 4 hole for new or replacement service lines.

v


vi


TABLE OF CONTENTSPREFACE ........................................................................................................................................................................ 2 NATURAL GAS SAFETY..................................................................................................................................................I SAFETY FIRST PROVIDING SAFE NATURAL GAS SERVICE..................................................................................................... I PERSONAL SAFETY ............................................................................................................................................................... I FACTS ABOUT NATURAL GAS ............................................................................................................................................... II METER TAMPERING ............................................................................................................................................................ III EXCAVATION SAFETY ..................................................................................................................................... IV

RECOMMENDATIONS FOR A SUCCESSFUL PROJECT............................................................................................ V IMPORTANT TELEPHONE NUMBERS ......................................................................................................................... 3 IMPORTANT TELEPHONE NUMBERS ......................................................................................................................... 4 LG&E NATURAL GAS EMERGENCIES (502) 589-5511......................................................................................... 4 GENERAL INFORMATION ............................................................................................................................................. 2 1.1 1.2 1.3 1.4 1.5 INTRODUCTION............................................................................................................................................................. 2 SCOPE ........................................................................................................................................................................ 2 SERVICE RATES, RULES AND REGULATIONS .................................................................................................................. 2 SERVICE AREA............................................................................................................................................................. 3 DEFINITIONS ................................................................................................................................................................ 4

NEW SERVICE INSTALLATIONS .................................................................................................................................. 7 2.1 CUSTOMER/CONTRACTOR STEPS FOR NEW SERVICE INSTALLATION .............................................................................. 7 2.2 LG&E STEPS ............................................................................................................................................................ 13 2.3 SERVICE REQUIREMENTS, RESTRICTIONS AND LIMITATIONS ......................................................................................... 14 SERVICE LINE INSTALLATIONS AND REPLACEMENTS ........................................................................................ 17 3.1 SERVICE LINE LOCATIONS REQUIREMENTS ................................................................................................................. 17 3.2 SERVICE LINE CONNECTION REQUIREMENTS............................................................................................................... 17 3.3 CLARIFICATION OF SERVICE LINE INSTALLATION OR REPLACEMENT REQUIREMENTS ..................................................... 18 3.4 PRESSURE SYSTEM REQUIREMENTS FOR SERVICE LINES ............................................................................................ 18 3.5 STEEL SERVICE LINE REQUIREMENTS ......................................................................................................................... 18 3.6 POLYETHYLENE SERVICE LINE REQUIREMENTS ........................................................................................................... 18 3.7 SERVICE LINE SIZE .................................................................................................................................................... 20 3.8 SERVICE LINE PROTECTION ........................................................................................................................................ 22 3.9 INSTALLATION METHODS/REQUIREMENTS FOR SERVICE LINES ..................................................................................... 23 3.10 CASINGS .................................................................................................................................................................. 25 3.11 TRACING WIRE ......................................................................................................................................................... 25 3.12 BRANCH CONNECTIONS ............................................................................................................................................ 25 3.13 SERVICE LINE INSPECTIONS ...................................................................................................................................... 26 3.14 SERVICE LINES PER BUILDING OR PROPERTY ............................................................................................................ 26 3.15 JOINING REQUIREMENTS FOR GAS SERVICE LINE PIPING ............................................................................................ 26 3.16 SERVICE RISER REQUIREMENTS ............................................................................................................................... 27 3.17 REPAIR OR REPLACEMENT OF SERVICE LINE, METER LOOP OR MANIFOLD PIPING ...................................................... 28 GAS METER INSTALLATIONS .................................................................................................................................... 31 4.1 4.2 4.3 4.4 4.5 4.6 STANDARD METER CAPACITY ..................................................................................................................................... 31 ACCEPTABLE METER LOCATIONS ................................................................................................................................ 31 METER ACCESSIBILITY ............................................................................................................................................... 32 MULTIPLE METERS ..................................................................................................................................................... 32 METER LOOP ASSEMBLIES ......................................................................................................................................... 32 METER PROTECTION .................................................................................................................................................. 34 1


HOUSE LINE INSTALLATIONS ................................................................................................................................... 37 5.1 5.2 5.3 5.4 5.4 5.5 5.7 5.8 5.9 6.1 6.2 6.3 6.4 HOUSE LINE CODE REQUIREMENTS ............................................................................................................................ 37 VALVE REQUIREMENTS .............................................................................................................................................. 38 PRESSURE REGULATORS ........................................................................................................................................... 38 PIPE REQUIREMENTS ................................................................................................................................................. 38 INSIDE PIPING INSTALLATION REQUIREMENTS .............................................................................................................. 41 HOUSELINE PIPING PROTECTION ................................................................................................................................ 41 HOUSE LINE SUPPORT ............................................................................................................................................... 42 APPLIANCE CONNECTIONS ......................................................................................................................................... 43 PRESSURE TEST ........................................................................................................................................................ 43 GENERAL................................................................................................................................................................... 45 REFERENCE SOURCES ............................................................................................................................................... 45 PIPE SIZING ............................................................................................................................................................... 45 PIPE SIZING METHOD ................................................................................................................................................. 45

CORROSION PREVENTION......................................................................................................................................... 51 7.1 7.2 7.3 7.4 GENERAL CORROSION PROTECTION REQUIREMENTS .................................................................................................. 51 COATING REQUIREMENTS........................................................................................................................................... 51 ELECTRICAL INSULATION ............................................................................................................................................ 53 ANODES .................................................................................................................................................................... 53

INSTALLATION AND OPERATION OF GAS BURNING APPLIANCES AND EQUIPMENT ..................................... 57 8.1 8.2 8.3 8.4 CUSTOMERS RESPONSIBILITY .................................................................................................................................... 57 PERMITS AND INSPECTIONS ........................................................................................................................................ 57 CODE COMPLIANCE.................................................................................................................................................... 57 INITIAL STARTUP OF APPLIANCES AND EQUIPMENT ...................................................................................................... 57

METER INFORMATION ................................................................................................................................................ 61 9.1 9.2 9.3 9.4 HOW TO READ YOUR METER ...................................................................................................................................... 61 METER OPERABILITY .................................................................................................................................................. 62 LEAK TEST FOR A HOUSE LINE SYSTEM ...................................................................................................................... 62 GAS CONSUMPTION TEST........................................................................................................................................... 63

SUPPLEMENTAL INFORMATION ............................................................................................................................... 66 GAS INSPECTION REQUEST ............................................................................................................................................... 66 CONVEYANCE OF RIGHT OF WAY - SAMPLE ....................................................................................................................... 67 SERVICE RELATED DRAWINGS ................................................................................................................................ 70

2


3


IMPORTANT TELEPHONE NUMBERSEmergency Numbers (24 Hours/Day) LG&E Natural Gas Emergencies (502) 589-5511 Outside Louisville Area ................. (800) 331-7370 LG&E Electric Emergencies............. (502) 589-3500 Outside Louisville Area ................. (800) 331-7370 Customer Service Call Center Numbers (Monday Friday) 7 a.m. 7 p.m. ET Residential Service Call Center ....... (502) 589-1444 7 a.m. 6 p.m. ET Business Service Center.................. (502) 627-3313 Outside Louisville Area TDD (hearing or speech-impaired) For: (800) 331-7370 7-1-1 Sizing Service Lines or Meters Acceptable Meter Locations Service Lines Under Buildings Homeowners Permits

Other LG&E Phone Numbers To Remember Monday Friday 7:30 a.m. 4 p.m. ET Service Representative (502) 627-3740

For: - Availability of Natural Gas for Connected Loads of 500,000 BTU or Less - New Service Line (and related House Piping) Inspection and Connection Gas Commercial Service Designer Office ................................................ (502) 364-8275 FAX................................................... (502) 364-8296 For Information Concerning Gas Total Connected Loads Greater than or equal to 500,000 BTUH: Replacement or Repaired Service Line Inspection and Reconnection Sizing Service Lines or Meters Acceptable Meter Locations Other Important Numbers Kentucky 811.................................... 811

New Natural Gas Service Service Transfers Customer Inquiry & Complaints Bill Corrections / Adjustments Credit / Reconnects / Transferred Balances Budget Billing Billing Inquiry

Service, Installation and Repair Numbers Gas Operations Centers Monday Friday 7:30 a.m. 4:00 p.m. ET Auburndale & East Operations Center Operator .............................. (502) 627- 3740 FAX ..................................... (502) 364- 8411 Bardstown Operations Center Operator .............................. (502) 627- 4300 FAX ..................................... (502) 627- 4301 Magnolia Operations Center Operator .............................. (270) 324- 4650 FAX ..................................... (502) 364- 8775 Muldraugh Operations Center Operator .............................. (502) 942- 6578 Operator .............................. (502) 364- 8583 FAX ..................................... (502) 364- 8564 All Other LG&E Numbers Not Listed (8 a.m. - 5 p.m. ET) Operator ........................................... (502) 627-2000 Toll Free ........................................... (800) 331-7370

Concerned About Your Energy Bill? Call To Learn About Our Energy Efficiency Programs Energy Efficiency.............................. (800) 356-5467

For Information Concerning: Installation, Repair or Replacement of New or Existing Gas Service Lines or House Line Piping Systems Replacement or Repaired Service Line Inspection and Reconnection 4


GENERAL INFORMATION1.1 IntroductionThe Louisville Gas and Electric Company, referred to herein as "LG&E, desires to cooperate with all concerned parties to further the proper installation and use of natural gas. To achieve this goal, the Customer Gas Piping Handbook was created to provide information to gas customers and potential gas customers regarding the installation and operation of gas piping and appliances. Gas customer, referred to herein as Customer, is used to address the party responsible for meeting the requirements of this handbook. While the Customers mechanical contractor, plumber and/or builder will in practice utilize this information the most, the Customer is ultimately responsible for meeting the requirements of this handbook. However, LG&E representatives are available to assist Customers in complying with requirements of this handbook.

1.2

ScopeThis handbook provides specifications and construction standards for the installation of service lines and Customer metering facilities. It also provides guidance for the installation of house lines and gas appliances for single-family and multi-unit dwellings with individual meters and for small commercial and industrial customers served with natural gas from LG&E. In addition, it meets or exceeds not only the Kentucky Public Service Commission (KPSC) regulations but also the NFPA 54 (National Fuel Gas Code), Kentucky Uniform Building Code, and other relevant publications. However, the information contained herein does not preempt any of the rules, codes or regulations contained in the aforementioned publications. It is the Customers responsibility to notify LG&E of any conflict between this handbook and the requirements of any of the above publications.

1.31.3.1

Service Rates, Rules and RegulationsKentucky Public Service Commission All natural gas service supplied by LG&E is provided in accordance with the applicable rates, rules, and regulations of the Kentucky Public Service Commission (KPSC), http://www.psc.state.ky.us/, and Louisville Gas and Electric Company http://www.eon-us.com. The administrative rules of the KPSC can be found in the document Kentucky Administrative Regulations Pertaining to the Kentucky Public Service Commission, Title 807, and Chapter 7 Utilities. This document is available for public inspection at the Commission, on the KPSC Internet site (above), at LG&Es Customer Service Center at 701 South Ninth Street in Louisville, Kentucky, and also at the LG&E Internet site (above). This document establishes general rules and regulations for all types of public utility service (water, gas, electric, telephone, etc.) that fall under the jurisdiction of KPSC. Specific sections of this document apply to gas service. LG&Es rates and requirements for natural gas service are documented in Louisville Gas and Electric Company Rates, Terms and Conditions for Furnishing Natural Gas Service. This document sets out specific rates and requirements for natural gas service provided by LG&E within the defined LG&E service territory.

1.3.2

National Fuel Gas Code (ANSI-NFPA 54) NFPA 54 - National Fuel Gas Code covers, in general, the design, alteration, modification, construction, maintenance and testing of utilization (i.e., non-utility) house line piping. The National Fuel Gas Code generally covers all aspects of natural gas piping beyond the outlet of the meter. (National Fire Protection Association, Batterymarch Park, Quincy, Massachusetts 02169.)

2


1.3.3

Kentucky Building Code Kentucky Building Code establishes rules that are intended to establish a uniform building code in the State of Kentucky (Department of Housing, Buildings and Construction, 1047 US HWY 127 South, Bay 1, Frankfort, KY 40601-7811, web site: http://www.state.ky.us/agencies/cppr/dhbc).

1.4

Service Area

LG&E provides retail gas service in the Louisville metro area and sixteen surrounding counties. The Operations Centers that are responsible for this area are shown below on the system map with the corresponding areas & cities serviced by each Operations Center.

3


1.51.5.1

DefinitionsAppliance (Gas Appliance) Any device that utilizes natural gas as a fuel or raw material to produce light, heat, power, refrigeration, or air conditioning. Approved Gas Valve A natural gas valve that meets or exceeds the minimum requirements of applicable federal, state, and local codes and regulations. BTU British Thermal Unit. A measure of heat energy. One BTU is the quantity of heat that will raise the temperature of one pound of distilled water by one degree Fahrenheit (1oF) at 70 degrees Fahrenheit (70oF). BTUH Input Rating The heat energy input, in terms of BTU per hour, required to properly operate a gas-burning appliance. The amount of natural gas needed to operate the appliance is determined by the BTU input rating. One standard cubic foot of natural gas will produce slightly over 1,000 BTUs in normal efficient combustion. Cathodically Protected Piping Underground coated steel piping that has cathodic protection applied to retard corrosion. The cathodic protection can be provided by the use of galvanic anodes, such as magnesium anodes. Company When used herein, refers to Louisville Gas and Electric Company (LG&E), a wholly owned subsidiary of E.ON U.S. Companys Service Connection Piping from LG&E's gas main to a point within one foot of the Customer's property line or easement line, adjacent to the main, for the purpose of supplying gas to the Customer's service line. Corrosion Prevention Measures taken to prevent corrosion and prolong the life of buried metallic piping, and aboveground piping exposed to weather or a corrosive environment. CSST Corrugated Stainless Steel Tubing. Gas house piping systems incorporating corrugated stainless steel tubing and custom designed fittings are for use above ground only. In order to be acceptable under code requirements, each installer must be certified as trained by the agent(s) or manufacturer(s) of system(s) being used and must be trained on all installation requirements of that manufacturer.

1.5.2

1.5.3

1.5.4

1.5.5

1.5.6

1.5.7

1.5.8

1.5.9

1.5.10 CTS Copper Tube Size. The size convention used to describe the size of polyethylene gas piping in terms of standard copper tubing. The actual outside diameter of CTS-sized tubing is one-eighth inch (0.125") larger than the nominal CTS. 1.5.11 Customer Contribution The amount of money that the Customer has to contribute to obtain natural gas service. A Customer contribution may be required when a pipeline must be either extended or tapped to provide service to the Customer. 1.5.12 Customer Service Line Piping installed by the Customer from LG&E's service connection to the inlet side of the gas meter. 1.5.13 Houseline Piping installed by the Customer from the outlet of the gas meter to all appliance and equipment connections. This definition includes piping installed underground or aboveground beyond the outlet of the meter. 1.5.14 IPS Iron Pipe Size. The size convention used to describe the size of polyethylene gas pipe in terms of nominal steel pipe of the same outside diameter. 1.5.15 Listed Material and equipment certified to meet the quality and performance standards specified by a nationally recognized testing laboratory or quality assurance organization. 4


1.5.16 Low, Elevated, Medium, And High Pressure LG&E's classifications of operating pressures in the gas mains throughout its gas system are as follows: a. Low Pressure The system operating pressure is essentially the same as the pressure delivered to each Customers meter and house line (i.e., 0.25 PSIG (7 inches Water Column)). b. Elevated Pressure LG&Es elevated pressure systems operate at 2.0 PSIG at their sources of gas supply. A pressure regulator is required ahead of each Customers meter to maintain a constant standard delivery pressure of 0.25 PSIG (i.e., 4 ounces per square inch or 7 inches Water Column). c. Medium Pressure LG&Es medium pressure systems operate at pressures higher than 2.0 PSIG up to 60 PSIG. LG&E has several medium pressure systems operating at different pressures. A pressure regulator is required ahead of each Customers meter to maintain a constant delivery pressure that is normally the standard 0.25 PSIG. Higher delivery pressure can be delivered to the Customer if necessary, limited by the characteristics and operating restraints for the particular medium pressure system. d. High Pressure LG&Es designation for high pressure includes any gas transmission system or distribution system that is subject to operation at over 60 PSIG. A pressure regulator is required ahead of each Customers meter to maintain a constant delivery pressure that may be the standard 0.25 PSIG or higher if necessary. 1.5.17 Main Gas system piping located in a public highway, street, alley, or private easement that is used to distribute gas. 1.5.18 Meter Loop Piping provided by the Customer to accommodate the installation of the gas meter(s). 1.5.19 PSIG Pounds per Square Inch Gauge. A standard unit of measurement for describing the pressure of gas or liquid. 1.5.20 SDR Standard Dimensional Ratio. A numerical term used to describe the wall thickness of polyethylene pipe. SDR is derived by dividing the actual outside diameter of the pipe by the wall thickness and is an indication of the strength of the pipe. 1.5.21 Service Head Adapter A transition fitting that adapts polyethylene gas pipe to steel pipe, in a manner in which the polyethylene pipe is shielded against damage from physical force and solar radiation, with all pressure containing metallic components located above ground. 1.5.22 Standard Delivery Pressure The gas pressure normally delivered to residential and small commercial Customers, which is approximately four ounces (4 oz) per square inch, seven inches (7) of Water Column, or 0.25 PSIG. 1.5.23 Tamperproof Gas Valve A gas valve in which the core cannot be easily removed, either accidentally or intentionally, with ordinary hand tools. 1.5.24 Total Connected Load The total heat input in BTUH for all gas burning appliances and equipment installed. 1.5.25 W.C. Water column pressure. A standard unit of measurement for describing the pressure that is expressed in terms of a water depth exerting an equivalent force. Typical gas pressure delivered to Customer's house piping is seven inches (7") W.C., which is approximately 0.25 PSIG. The loss in gas pressure that results from gas flowing through a piping system is generally expressed in inches of W.C. drop.

5


6


NEW SERVICE INSTALLATIONS2.1 Customer/Contractor Steps for New Service InstallationThe steps involved to complete the new service process are listed below. These steps cover all Customer/contractor responsibilities from confirming gas service to requesting meter installation and/or turn-on. In addition, a brief summary of the work that LG&E will perform is also provided. Note: These steps in the new service process are applicable to connected loads that are 500,000 BTUH or less and may be performed concurrently.

QUICK STEPSTo Complete The New Service Process, A Customer Must: 2.1.1 Confirm the availability of natural gas. In addition, the availability of the required pressure and/or capacity should be verified. Note: High BTUH rating appliances, such as generators, instant hot water heaters, etc., may require pressures that are above LG&Es normal delivery pressure of 4 oz. (i.e., 0.25 PSIG) and/or capacities of a typical house line or natural gas meter. Confirm any Customer contributions for pro-rata mains or main extensions, if applicable. For commercial or industrial Customers, provide customer usage and site data to LG&Es Account Manager/Customer Coordinator, if applicable. Establish an LG&E service account by contacting either the Residential Service Call Center (for residential Customers) or the Business Service Center (for commercial or industrial Customers). Sign the service contract and pay any amounts due for Customer contributions, if applicable. If a service contract is applicable, no service work can be performed by LG&E before this step is done. Convey to LG&E all necessary easements/rights-of-way, if applicable. Install all required Customer provided facilities (e.g., the customer service line) in accordance with the Customer Gas Piping Handbook. Request connection of the customer service to LG&Es company service, if applicable. Note: This request is typically made by the installer of the customer service (e.g., plumber).

2.1.2

2.1.3

2.1.4

2.1.5

2.1.6 2.1.7

2.1.8

7


2.1.1

Confirm Availability of Natural Gas and any Customer Contributions a. Connected Loads That Are 500,000 BTUH Or Less i. No Meter Exists a) Determine Availability of Natural Gas and Any Customer Contributions 1) Before installing a new gas service, residential and commercial Customers should contact a LG&E Service Representative to verify the availability of natural gas at the required pressure and capacity, and to determine if any Customer contributions are applicable. A Service Representative may be reached at (502) 627-3740. 2) Installers or Customers will be required to provide the Service Representative with their complete address including the zip code and the lot number (for new construction) and information concerning their gas loads. ii. Meter Exists If installing furnaces, generators, swimming pool heaters, or other gas appliances of a high BTUH rating to an existing gas service, residential and commercial Customers should contact the LG&E Commercial Service Designer to verify that the gas main, service line and meter have sufficient pressure and/or capacity to supply the gas load. The LG&E Commercial Service Designer may be reached at (502) 364-8275. b. Connected Load Greater Than 500,000 BTUH Special provisions apply for total connected loads of more than 500,000 BTUH served by any single meter. For service line and meter installation specifications and requirements, the LG&E Commercial Service Designer should be contacted at (502) 364-8275.

2.1.2

Confirm Customer Contribution a. No Meter Exists i. Customers must contact a LG&E Service Representative to determine if a Customer contribution is applicable. A LG&E Service Representative may be reached at (502) 627-3740. If a Customer contribution is applicable, Customer will be mailed a service contract.

ii.

b. Meter Exists For Customers with existing natural gas meters, no Customer contributions are required. 2.1.3 Provide Load and Site Data a. Residential Residential Customers do not need to provide load or site data. b. Commercial i. No Meter Exists a) Commercial Customers should be prepared to provide the information listed below. This step is not applicable to residential Customers.

8


Load data information (i.e., BTUs) must be provided on LG&Es Gas Load Data Submittal Sheet. A copy of the gas data submittal sheet can be found in Section 10, Supplemental Information. Two copies of the site plan b) The completed Gas Load Data Submittal Sheet and the site plan should be sent to the appropriate Operations Center to the attention of Account Manager. Refer to Operations Center By Zip Codes in Section 1, General Information, for the Operations Center that is responsible for your geographic area. For Bardstown and Muldraugh Operations Centers, the information should be sent to the Auburndale Operations Center. Account Manager Auburndale Operations Center Louisville Gas & Electric Company Auburndale Operations Center 6900 Enterprise Drive Louisville, Kentucky 40214 Account Manager East Operations Center Louisville Gas & Electric Company East Operations Center 10300 Ballardsville Road Louisville, Kentucky 40241 c) Once the information is received, the Customer will receive a service contract. ii. No Meter Exists Commercial Customers who have existing meters do not need to provide load or site data. 2.1.4 Make Request for Service a. The Customer must contact LG&E and make a request for service. LG&E cannot begin the process of arranging for service until the application for service has been completed. i. For residential Customers, the request for service may be made: on-line at www.eon-us.com by telephone through the Residential Service Call Center. The Residential Service Call Center is available Monday through Friday, 7:00 A.M. to 7:00 P.M. They may be reached at (502) 589-1444, or toll free at (800) 331-7370 from outside of the Louisville local calling area.

ii.

For commercial Customers, the request for service may be made: on-line at www.eon-us.com by telephone through the Business Service Center. The Business Service Center is available Monday through Friday, 7:00 A.M. to 6:00 P.M. They may be reached at (502) 627-3313, or toll free at (800) 331-7370 from outside of the Louisville local calling area.

9


b. At the time of the request for service, the Customer should be prepared to provide the information listed below. i. No Meter Exists Requests for service should be made as far in advance of the required date of service as possible to avoid unnecessary delays in receiving service. LG&E requires sufficient time to design, plan and install the necessary natural gas facilities for new services. Additional time will be required if LG&E must extend or enhance facilities to provide service. a) Residential Customers Name(s) on the account Social Security Number(s). If other responsible parties, such as a spouse/roommate, are included on the account, their social security numbers need to be included. Service address. Please provide ALL available information (street name, house number, lot number, zip code, etc.). If the service is for a home and the home will be constructed in a subdivision, subdivision name and lot number will also need to be provided Billing Address (if different from Service Address) Daytime Contact Telephone Number Evening Contact Telephone Number Date Requesting Service Employer Name Employer Street Address. Please provide ALL available information (street name, zip code, etc.) Work Telephone Number b) Commercial Customers Request for service should be made as far in advance of the required date of service as possible to avoid unnecessary delays in receiving service. LG&E will require sufficient time to design, plan and install the necessary natural gas facilities for new services. Additional time will be required if LG&E must extend or enhance facilities to provide service. Name of Business as listed with Secretary of State of Kentucky (if incorporated, limited liability or partnership) Service Address. Please provide ALL available information (street name, lot number, unit, apartment, suite, zip code, etc.). Federal Tax ID Type of Service (Gas, Electric, etc.) Square Footage of Building Type of Business Name of Requestor Title of Requestor Requestor E-Mail Address (required for on-line submission) Telephone Number of Requestor Telephone Number of Business Mailing Address for Bills (if different than service address)

10


Special Notes: If electric service is also required, it will be necessary to request electric service at the same time the request for natural gas service is made. The submission of a request for service constitutes the Customers permission for LG&E to conduct a credit history check. For all new commercial accounts, a deposit is required that is equal to 2/12 (two twelfths, or two months) of the projected annual bill. Meter Exists a) Residential Customers Name(s) on the account Social Security Number(s). If other responsible parties, such as a spouse/roommate, are included on the account, their social security numbers need to be included. Service address. Please provide ALL available information (street name, house number, zip code, etc.). Billing Address (if different from Service Address) Daytime Contact Telephone Number Evening Contact Telephone Number Date Requesting Service Employer Name Employer Street Address. Please provide ALL available information (street name, zip code, etc.). Work Telephone Number Special Notes: The submission of a request for service constitutes the Customers permission for LG&E to conduct a credit history check. b) Commercial Customers Name of Business as listed with Secretary of State of Kentucky (if incorporated, limited liability or partnership) Service Address. Please provide ALL available information (street name, lot number, unit, apartment, suite, zip code, etc.). Federal Tax ID Type of Service (Electric, Gas, etc.) Name of Requestor Title of Requestor Requestor E-Mail Address (required for on-line submission) Telephone Number of Requestor Telephone Number of Business Mailing Address for bills (if different than service address) Special Notes: The submission of a request for service constitutes the Customers permission for LG&E to conduct a credit history check. For all new commercial accounts, a deposit is required that is equal to 2/12 (two twelfths, or two months) of the projected annual bill.

ii.

11


c.

At the time the request for service is made, the Customer will be given an account and/or order number. This information should be retained for the purpose of tracking the progress of the service request. In addition, the Customer will be sent an informational package.

2.1.5

Sign Service Contract a. No Meter Exists Customers who received a service contract because they own a Customer contribution must sign a service contract and pay any amounts noted in the Customer contributions area of the contract. b. Meter Exists Service contract is not required.

2.1.6

Convey to LG&E All Necessary Easements/Rights-of-Way a. No Meter Exists i. For LG&E to place facilities and provide service, the Customer must convey to LG&E all necessary easements/rights-of-way on the Customers property. Any rights-of-way needed from other property owners will be obtained by Customer.

ii.

b. Meter Exists Easements/right-of-ways are not required. 2.1.7 Install Customer Provided Facilities a. No Meter Exists i. Residential and commercial Customers will need to install Customer provided facilities (e.g., service line, meter loop and house line piping). Customers are responsible for any necessary maintenance of these facilities.

ii.

b. Meter Exists i. If the Customer service line, meter loop or house line piping is not adequate because of the installation of a high BTUH rating appliance (e.g., generators, swimming pool heaters, etc.), Customer will need to install the appropriate facility. Customers are responsible for any necessary maintenance of these facilities.

ii. 2.1.8

Request for Meter Installation and/or Turn-On a. To qualify for connection of the Customer service to LG&Es Company service, the following items must be completed: i. A request for service must be established through either the Residential Service Call Center or Business Service Center. All Customer-provided facilities must be installed.

ii.

12


iii.

The house line system must be extended to an operable natural gas burning appliance(s) or to a plugged valve(s) at the proposed appliance(s) locations. For a service line supplying gas to multiple meters, the inlet side to all proposed meter loops must be completed and the house line from at least one meter must be connected to an operable appliance or to plugged valves at the proposed appliance locations.

iv.

b. To have the Customer service connected to LG&Es Company service, a written request should be faxed to LG&E at (502) 333-1823. The form for the request is included in Section 10 Supplemental Information. Note: Installers or Customers will be required to provide the Customer account number for each address.

2.22.2.1

LG&E StepsRequest for Service a. No Meter Exists i. After a request for service has been made, LG&E will perform the following: a) LG&E will send out an informational package. b) LG&E will send out a service contract for Customers who own a Customer contribution. For commercial Customers, the service contract will be sent out after the LG&E receives the load and site data. ii. After the signed service contract is received, LG&E will perform the following: a) LG&E will obtain all necessary permits from public entities for the installation of LG&E facilities in public rights-of-way. LG&E will also obtain all work permits required to perform work in public rights-of-way associated with providing service to the Customer. b) LG&E will obtain all necessary easements required from other property owners, if applicable. c) LG&E will install the Company service line. b. Meter Exists i. ii. After a request for service has been made, LG&E will send out an informational package. After the signed service contract is received, LG&E will install the Company service line.

2.2.2

Request Connection of the Customer Service to LG&Es Company Service a. After a request for meter installation and turn-on has been made, LG&E will perform the following: i. No Meter Exists a) LG&E will visually inspect the Customer service line and meter loop to ensure compliance with applicable material and installation specifications. b) LG&E will pressure test the service line and meter loop for leaks. c) LG&E will visually inspect the house line piping, to the extent accessible, for safe installation. d) LG&E will pressure test the house line piping for leaks. If the connection to the existing house piping system is made prior to LG&Es inspection and pressure test of the new installation, the entire house line piping system shall be subject to a pressure test prior to reactivation. 13


e) LG&E will visually check appliances that are in place for apparent proper installation and venting. To check appliances, LG&E will need access to the premises. f) If the inspections performed by LG&E are satisfactory, the Customers service line will be connected to the Companys service line and the meter will be placed. Gas will not be turned on to a house piping system believed to be unsafe or leaking.

ii.

Meter Exists a) LG&E will pressure test the house line piping for leaks. If the connection to the existing house piping system is made prior to LG&Es inspection and pressure test of the new installation, the entire house line piping system shall be subject to a pressure test prior to reactivation. b) LG&E will visually check appliances that are in place for apparent proper installation and venting. To check appliances, LG&E will need access to the premises. c) If the inspections performed by LG&E are satisfactory, the gas service will be activated. Gas will not be turned on to a house piping system believed to be unsafe or leaking.

2.3

Service Requirements, Restrictions and LimitationsCertain restrictions and limitations apply for establishing and maintaining natural gas service. Below is a partial list of some of these restrictions and limitations.

2.3.1

Contract Acceptance and Terms a. LG&E has the right to reject, for valid reasons, any application or contract for service. b. Applications for natural gas service are not transferable, and new occupants of the premises are required to make application for service before service is provided. Customers who have been receiving natural gas service must notify LG&E when they wish to discontinue service and are responsible for paying for all natural gas service furnished until the time a request to discontinue service has been made and the final meter reading has occurred. c. LG&E may require a minimum cash deposit or other guarantee to secure payment of bills. Service may be refused or discontinued for failure to pay the required deposit. For more information regarding LG&Es deposit policy, contact the Residential Service Call Center.

2.3.2

Use of Service Restrictions a. Customers are prohibited from using natural gas service for purposes other than those set forth in the Customer's application or contract. b. Natural gas furnished under LG&E's standard application or contract is for the use of the Customer only. No Customer shall resell such energy to any other person, firm, or corporation without the written consent of LG&E and approval of the KPSC.

2.3.3

Refusal or Discontinuance of Service a. In accordance with and subject to the rules and regulations of the KPSC, LG&E retains the right to refuse or discontinue service to an applicant or Customer under certain conditions. LG&E will charge the Customer for disconnections and reconnections of natural gas service resulting from non-payment of bills, unsafe conditions or for violations of the Companys rules and regulations. Refusal or discontinuance of service with or without notice, and without liability, can occur under various other circumstances. These conditions are set forth in LG&Es Tariffs filed with the KPSC and the rules and regulations of the commission. 14


b. Since it is LG&Es obligation to provide safe and satisfactory service to all Customers, LG&E reserves the right to refuse or to discontinue service without notice if, in the opinion of LG&E, the Customers piping, equipment or appliances are unsafe or unsuitable for receiving natural gas service or are harmful to the service of other Customers. LG&E will make a reasonable effort to notify the Customer prior to disconnection and shall inform the Customer of the steps which must be taken to have service restored. 2.3.4 Service and Liability Limitations a. LG&E is not liable for any injury or damage to persons or property resulting from the presence, use or abuse of natural gas on the Customer's premises. LG&E shall be held harmless for any injury or damage to persons or property resulting from defects in Customer piping, equipment, apparatus, or appliances, or resulting from any cause whatsoever other than the negligence of LG&E. b. LG&E will exercise reasonable care and diligence in an endeavor to supply service continuously and without interruption, but does not guarantee continuous service. It is the responsibility of the Customer, when deemed necessary or desirable, to install any equipment necessary to protect the facilities against disruptions in service.

15


16


SERVICE LINE INSTALLATIONS AND REPLACEMENTS3.13.1.1

Service Line Locations RequirementsLocation Within Property or Right-of-Way a. Each Customer gas service line must be located within the property being served, or within a recorded easement or common space in which the rights to install, maintain, and operate the service line have been legally granted. b. To the greatest extent practical, a minimum of one foot (1) horizontal distance should be maintained between the gas service line and the edge of the property line. Note: In this case, the gas service line and the property line are parallel to each other.

3.1.2

Under Buildings a. New or replacement gas service lines shall not be installed under buildings unless unavoidable, in the sole judgment of LG&E, and approved by LG&E. Buildings or other major structures, such as in-ground swimming pools, porches, storage sheds, etc., shall not be constructed over existing service lines unless unavoidable and approved by LG&E. b. If unavoidable, in the sole judgment of LG&E and approved by LG&E, the service line may be installed. However, the service line must be encased in a gas tight conduit. The conduit must be vented to open air outside of the building. The Gas Operations Center in your area must be consulted for specific requirements.

3.23.2.1

Service Line Connection RequirementsGeneral LG&E shall not be obligated to make service connections or to extend its gas main in cases where such extensions or connections, in the sole judgment of LG&E, would be infeasible, impractical, or contrary to good operating practice.

3.2.2

Point of Termination a. New Service Lines i. Check with the Gas Operations Center in your area to determine if a Company service connection already exists, or if special requirements exist for the address being served. When a Company service connection already exists, the Customer service line shall be run to at least one foot beyond the property line or easement line at that location. Customer is responsible for a two foot by four foot (2 x 4) excavation hole at the property line regardless of installation method (trench, plow, directional drill, etc).

ii.

iii. When the Company service connection does not exist, the Customer service line shall extend at least one foot beyond the property line or easement line of the right-of-way in which the gas main is located unless otherwise approved or directed by LG&E. The point of termination must allow access for connection of the Company service line to the main. Locations near driveway aprons, large trees, catch basins, manholes, or other structures must be avoided. Refer to Drawing No. GSC 20-10-001, Acceptable Service Lines Locations. iv. When joint trenching construction has been used for installation of the gas mains and Company service lines, the Customer service line may be required to extend to a remote location to meet the Company service connection.

17


b. Replacement Service Lines The Customer service line must extend at least one foot (1) beyond the property line or easement line at the same location as the service line being replaced unless otherwise approved or directed by LG&E. Customer is responsible for a two foot by four foot (2 x 4) excavation hole at the property line regardless of installation method (trench, plow, directional drill, etc). 3.2.3 Utility Clearance For the service connections at the property or easement line, a minimum of three feet (3) horizontal separation is recommended between gas service lines and other utility service connections. Refer to Drawing No. GCS 20-10-001, Acceptable Service Line Locations.

3.3

Clarification of Service Line Installation or Replacement RequirementsFor clarification of service line installation or replacement requirements, the Gas Operations Center serving your geographic area should be consulted. The Gas Operations Centers telephone number is listed in Section 1 - Important Telephone Numbers.

3.43.4.1

Pressure System Requirements for Service LinesHigh Pressure Systems (i.e., Pressure Systems greater than 60 psig) a. Polyethylene pipe may be used for service lines being supplied by high pressure gas mains if a first stage regulator, that reduces the pressure to 60 psig or less, is installed at the property line or easement line. b. Steel pipe must be used for service lines being supplied by high pressure gas mains if a first stage regulator is not installed,

3.4.2

Medium, Elevated or Low Pressure Systems (i.e., Pressure Systems less or equal to 60 psig) All new and replacement service lines being supplied by low, elevated, and medium pressure gas mains shall be constructed with polyethylene (PE) pipe that is approved by LG&E.

3.53.5.1

Steel Service Line RequirementsAll steel pipe joints shall be welded. All welding must be performed by a qualified welder using qualified welding procedures in accordance with the requirements of API Standard 1104, ASME Boiler and Pressure Vessel Code Section IX, or 49 CFR Part 192 Appendix C. All buried steel pipe shall be mill coated and cathodically protected. For the specific requirements and specifications for the installation of mill coated steel gas service lines, contact the Gas Operations Center in your area. The Gas Operations Centers telephone number is listed in Section 1 - Important Telephone Numbers.

3.5.2 3.5.3

3.63.6.1

Polyethylene Service Line RequirementsMaterial Specifications a. All polyethylene pipe used for gas service lines must conform to specification ASTM D2513, "Specifications for Thermoplastic Gas Pressure Pipe, Tubing and Fittings. b. The polyethylene pipe must be marked at intervals not exceeding two feet (2) showing the manufacturer or trade name, size, wall thickness or SDR number, PE type, batch identification, and ASTM D2513 compliance. 18


c.

The polyethylene pipe may be grade PE2406 or PE3408 with designation CD, CE, CDC, or CEC. PE2406 grade (medium density) must be yellow.

d. The following sizes are approved for polyethylene (PE) gas service line use: Standard Nominal Polyethylene Pipe Dimensional Size Outside Diameter Wall Thickness Ratio Rating " CTS* 0.625 .090 W.T. SDR 7.0 IPS 0.840" O.D. .090" W.T. SDR 9.3 1" CTS 1.125" O.D .099" to .101" W.T. SDR 11.4 1-1/4" IPS 1.660" O.D. .166" W.T. SDR 10 2" IPS 2.375" O.D. .216" W.T. SDR 11.0 3" IPS 3.500" O.D. .307" W.T. SDR 11.5 4" IPS 4.500" O.D .395" W.T. SDR 11. 6" IPS 6.625" O.D. .576" W.T. SDR 11.5 or 6" IPS 6.625" O.D. .491 W.T. SDR 13.5 * CTS may only be used when inserting through existing steel service lines, see 3.9.4. e. Pipe types, grades and sizes other than listed above are subject to approval by LG&E prior to installation. Additional types or grades may be subsequently approved as polyethylene pipe technology advances. 3.6.2 Pressure Testing a. All polyethylene service lines shall be pressure tested at 100 psig with air or inert gas as the test medium to prove the structural integrity and absence of leaks. b. To facilitate pressure testing, two inch (2") IPS and smaller polyethylene service lines should be brought above grade and tied to a stake or other object at the property line or easement line. The end should be capped in a watertight manner to prevent entry of rain, dirt, or insects. c. Service lines larger than two inch (2") IPS shall be terminated at the property line or easement line in accordance with the specific requirements stated by the Gas Operations Center in your area.

3.6.3

Bending Radius Sharp bends in polyethylene gas piping should be avoided. For permanent installations, the bending radius should exceed 20 times the outside diameter of the polyethylene pipe as follows: Actual O.D. 0.625 0.840" 1.125" 1.660" 2.375" Minimum Radius 18 18" 24" 36" 48"

Nominal Size 1" 1-1/4" 2" 3.6.4 CTS IPS CTS IPS IPS

Handling Polyethylene Pipe a. Care must be used at all times when handling and storing polyethylene gas pipe. b. Contact with sharp edges, kinking, and exposure to extreme heat or petroleum solvents must be avoided. c. Pipe with surface cuts or gouges of 10% or more of the wall thickness, pipe that has been kinked, or pipe that has been exposed to extreme heat or petroleum solvents may not be used. 19


3.73.7.1

Service Line SizeEach gas service line must be of sufficient size to meet the maximum usage demand determined by adding the BTUH input of all connected appliances or equipment subject to simultaneous operation. The service line size required is dependent upon the operating pressure of the system to which it is connected, the length, as well as the maximum usage demand. Allowance should be made for future installation of additional appliances if applicable. The correct service line size may be determined from the service line capacity charts in Tables 3.1, 3.2, and 3.3. If any doubt exists concerning the gas main pressure classification for an address being served, or if any uncertainty exists concerning the service line size, the Gas Operations Center in your area should be contacted. The Gas Operations Centers telephone number is listed in Section 1 - Important Telephone Numbers.

3.7.2

TABLE 3.1 LOW PRESSURE SERVICE LINE CAPACITY (Thousand BTUH based on 0.5 W.C. pressure drop)

LENGTH

NOMINAL POLYETHYLENE PIPE SIZE

Feet 25 30 35 40 45 50 60 70 80 90 100 200 300 400 500 600 700 800 900 1,000

1 CTS 321 289 264 244 228 215 193 176 163 152 143 111 96 83 67 56 48 42 37 34

1-1/4 IPS 855 770 705 653 610 574 517 473 438 409 385 257 203 177 166 158 151 143 137 130

2 IPS 2,396 2,161 1,980 1,835 1,716 1,616 1,457 1,334 1,236 1,156 1,088 730 578 489 429 386 352 326 304 286

3 IPS 6,721 6,067 5,563 5,160 4,829 4,550 4,105 3,763 3,489 3,264 3,074 2,072 1,643 1,393 1,225 1,103 1,009 934 873 821

4 IPS 13,630 12,310 11,290 10,480 9,811 9,248 8,348 7,656 7,101 6,646 6,263 4,232 3,361 2,853 2,512 2,263 2,072 1,919 1,793 1,688

20


TABLE 3.2 ELEVATED PRESSURE SERVICE LINE CAPACITY (Thousand BTUH based on 4 W.C. pressure drop)

LENGTH Feet 25 50 75 100 125 150 200 250 300 350 400 500 600 700 800 1,000 1,200 1,400 1,600 1,800 2,000 1 CTS 1,075 725 575 488 429 387 328 288 259 237 219 192 173 158 146 128 122 117 112 108 105

NOMINAL POLYETHYLENE PIPE SIZE 1-1/4 IPS 2,830 1,916 1,524 1,294 1,140 1,028 872 768 692 633 586 515 464 424 393 345 310 284 262 245 230 2 IPS 7,848 5,331 4,248 3,614 3,187 2,876 2,444 2,154 1,942 1,779 1,649 1,452 1,309 1,198 1,110 977 880 805 745 696 655 3 IPS 21,810 14,860 11,860 10,100 8,919 8,054 6,855 6,048 5,459 5,005 4,642 4,092 3,692 3,383 3,136 2,763 2,491 2,282 2,114 1,977 1,861 4 IPS 43,980 30,010 23,980 20,440 18,060 16,320 13,900 12,270 11,080 10,170 9,433 8,322 7,512 6,887 6,388 5,633 5,081 4,657 4,317 4,038 3,804

21


TABLE 3.3 MEDIUM PRESSURE SERVICE LINE CAPACITY (Thousand BTUH based on difference of absolute pressure squared = 100)

LENGTH

NOMINAL POLYETHYLENE PIPE SIZE

Feet 100 150 200 250 300 400 500 600 700 800 1,000 1,500 2,000 2,500 3,000

CTS 353 281 240 212 191 163 144 130 120 111 98 78 67 59 53

IPS 1,135 903 768 677 611 519 457 412 377 349 307 243 206 181 163

1 CTS 2,825 2,253 1,918 1,692 1,527 1,299 1,145 1,033 947 878 773 614 521 458 412

1-1/4 IPS 7,382 5,898 5,027 4,440 4,011 3,415 3,014 2,721 2,496 2,315 2,042 1,624 1,380 1,216 1,096

2 IPS 20,330 16,270 13,880 12,270 11,090 9,458 8,355 7,549 6,928 6,431 5,677 4,524 3,850 3,396 3,064

Note: The medium pressure service line capacities shown in Table 3.3 are conservative and may be used without exception on any service supplied from an LG&E medium pressure gas system. In some cases, a greater capacity will result from a higher system operating pressure. If additional capacity is needed to utilize an existing medium pressure service line, or to enable insertion through an existing steel service, the Gas Operations Center in your area should be consulted.

3.83.8.1

Service Line ProtectionCreek Crossings and Drainage Ditches Service lines crossing creeks or drainage ditches must be adequately protected against damage that may result from erosion or dredging. For creeks and ditches in which water is normally present or flowing, the service line must be encased in a steel pipe or otherwise protected in accordance with a method acceptable and approved by LG&E.

3.8.2

Ends of Steel Casing a. Each point in which pipe enters or leaves a steel casing pipe must be properly prepared and protected from damage resulting from contact with sharp metal edges and from sheering forces from ground settlement. b. The inside of the steel casing must be reamed or filed to remove burrs and to provide a beveled or rounded edge, and a protective insert bushing must be in place during and after the insertion operation. 22


3.8.3

A rigid plastic sleeve at least 12 inches (12) long must be centered over the entry or exit point. A split two (2) piece insert shall not be used, and the protective sleeve should be the smallest standard size that will fit over the steel casing pipe. Refer to Drawing No. GCS 20-20-004, Detail Insert Protector & Sleeve for Polyethylene Insertion.

3.93.9.1

Installation Methods/Requirements for Service LinesGeneral a. Call before you dig i. least two business days prior to starting excavation activities, Kentucky 811 should be called to locate all underground utilities (electric, gas/oil/steam, water, cable, communication, and sewer) in the area of the proposed excavation. Dial 811. There is not a charge to the Customer or Customer Representative for calling Kentucky 811 or for the locating services that are normally provided.

ii.

iii. Customers and Customer Representative will be held responsible for damages to LG&E facilities resulting from failure to locate utilities or failure to follow excavation practices. b. Utility Clearance To the greatest extent practical, a minimum clearance of one foot (1) horizontal distance should be maintained between the gas service and underground structures, water service lines, electric service lines, telephone lines, and cable television service lines. However, a minimum of three feet (3) horizontal clearance is recommended between gas service lines and underground gasoline or fuel oil storage tanks, underground sewer lines, septic tanks, or lateral fields. Refer to Drawing No. GCS 2010-001, Acceptable Service Line Locations. c. Depth of Cover Service lines must have at least 18 inches (18) of cover, except where prevented by solid or consolidated rock. In case of rock, or other obstructions, service lines shall be as deep as practical, but with not less than 12 inches (12) of cover. However, if solid rock prevents installation with 12 inches (12) cover, a minimum of nine inches (9) will be allowed providing that the service line is installed inside a rigid plastic or steel casing with the top of the casing below the surface of the rock. Refer to Drawing No. GSC 20-20-002, Installation of Gas Service Line in Shallow Rock. 3.9.2 Direct Burial a. Backfill and Trench Bottom Requirements i. Special care must be exercised to assure that all soil in contact with the gas pipe is free from rocks, bricks, nails, building materials, etc., that may damage the pipe surface. If necessary, a sand or sifted soil cushion at least six inches (6) thick may be required above and below the pipe. Backfill material containing the above-mentioned foreign materials may not be used. As with any underground pipe, backfill shall be carefully replaced in several well compacted layers. Special attention shall be paid to the area around the polyethylene pipe at the meter riser to avoid straining the meter loop brackets and service head adapter if used. If good backfill material is unavailable, it is permissible to encase the polyethylene service line in a rigid plastic or steel pipe of a larger size.

ii.

23


iii. The trench bottom for gas service lines installed by direct burial must be smooth and free of abrupt changes in elevation. The soil in the trench bottom must be free of sharp rock or foreign material that may damage the pipe. If rock is encountered, a minimum of six inches (6) of sand or sifted soil cushion must be placed below the pipe. iv. As an alternative to sand or sifted soil cushion, a steel pipe, PVC pipe, or other rigid plastic pipe may be installed on the ditch bottom to use as a protective sleeve for insertion. b. Utility Clearance If a gas service line is installed in the same ditch with other utilities or underground facilities, a minimum of one foot (1) horizontal clearance shall be maintained and the gas service line must be supported on well compacted soil. If conditions or situations prevent meeting these requirements, the Gas Operations Center in your area should be consulted. The requirements of this article do not preclude participation in joint trenching projects. However, a detailed plan must be submitted to LG&E for approval prior to the installation. 3.9.3 Trenchless Technology a. Installation of service lines by plowing, horizontal drilling or other trenchless technology is subject to the approval of LG&E in advance. In order to achieve approval for horizontal drilling, an operating plan must be presented and observation of an installation by a LG&E inspector may be required. b. The plan must address the following items: i. Minimum qualifications of the lead person, performing the installation. Note: The lead person must be on the job site while the work is being performed. Requirement to notify Kentucky Dig Safely at least two business days prior to starting construction, as well as all other reasonable precautions to avoid interference with sewers, drains, and other buried facilities.

ii.

iii. Requirement not to damage other underground utilities. To meet this requirement, test holes should be dug by hand over locations where the proposed service line will cross the existing underground utilities. The test holes should be dug to a depth that equals or exceeds the depth of the proposed service line. iv. Description of soil types and conditions acceptable and unacceptable for the installation method described. v. If polyethylene pipe is used, provision for limiting tensile stress on the polyethylene pipe to a level not damaging to the pipe.

vi. Quality control program to ensure that soil and installation conditions are proper and that proper depth of burial has been attained. vii. Criteria for the inspection of the leading pipe to assure that it had not been damaged by tension or abrasion. Visual inspection and dimensional testing with a cold ring clamp is suggested.

24


3.9.4

Insertion a. Existing steel service lines may be renewed by insertion with a smaller size polyethylene service line, provided that the reduced size will carry sufficient capacity to meet present and anticipated future demand in accordance with Tables 3.1, 3.2, and 3.3, and provided that the length, load and pressure restrictions are met. One and a quarter inch (1-1/4") steel pipe (1.66" O.D.) may be inserted with up to one inch (1") CTS (1.125" O.D.) polyethylene pipe. Refer to Drawing No. GCS 20-20-003, Installation of Polyethylene Service by Insertion. One inch (1") steel pipe (1.315" O.D.) may be inserted with up to half inch (1/2") IPS (.840" O.D.) polyethylene pipe. Refer to Drawing No. GCS 20-20-003, Installation of Polyethylene Service by Insertion. Three-quarter inch (3/4) steel pipe (1.050 O.D.) may be inserted with up to half inch (1/2) CTS (0.625 O.D.) polyethylene pipe. Refer to Drawing No. GCS 20-20-003, Installation of Polyethylene Service by Insertion.

b. The existing service line must meet minimum depth requirements and may not pass under buildings or go through other prohibited locations.

3.10

Casings

3.10.1 Installation of Casings Plowing or directional boring may be used as alternatives to direct burial for installation of casing.

3.11

Tracing Wire

3.11.1 A tracing wire consisting of stranded AWG 14 or larger insulated copper wire must be installed with each polyethylene service line from the meter riser to the property or easement line. Contact between the tracing wire and the polyethylene gas pipe is to be avoided. A clearance of three inches (3) to six inches (6) should be maintained. Care must be taken to avoid damage to the tracing wire during placement and compaction of backfill. 3.11.2 When inserting polyethylene pipe through an existing steel service, tracing wire must be provided between the service riser and the casing, across each gap in the casing, and from the end of the casing to the property line or easement line. The tracing wire must be electrically attached by brazing, thermite welding, or with good quality electric ground clamps to the casing pipe. Each connection between the tracing wire and casing pipe must be coated with an electrically insulating mastic intended for burial. Brazing or thermite welding must be performed before the polyethylene is inserted. Refer to Drawing No. GCS 20-20-005, Attachment of Tracing Wire. 3.11.3 As an option, the tracing wire may be inserted with the polyethylene gas pipe through an existing steel service pipe provided that proper clearance is maintained between the wire and polyethylene pipe before and after they exit the casing pipe. 3.11.4 When installing a PVC or other plastic casing pipe by trenching, plowing, or directional boring, the tracing wire must be installed outside of the casing and may be taped or otherwise secured to the outside of the casing at intervals as necessary to facilitate installation.

3.12

Branch ConnectionsNo tees or branch connections are allowed in Customer service lines below grade. If more than one gas meter is required, all tees shall be above grade and all meters and service line interconnections shall be within plain sight at a common location.

25


3.13

Service Line Inspections

3.13.1 All service line piping must be installed in accordance with the specifications provided by this handbook and shall be visually inspected and pressure tested by LG&E. 3.13.2 Service lines installed by direct burial must be visually inspected by LG&E before the areas of open excavation may be backfilled. 3.13.3 Service lines installed by trenchless technology (e.g., plowing or boring) must be visually inspected by LG&E before the areas of open excavation (including areas at the property line and the meter assembly) may be backfilled. 3.13.4 Service lines installed by insertion (i.e., in a newly installed PVC sleeve or existing steel service line) must be visually inspected by LG&E before the areas of open excavation (including areas at the property line and the meter assembly) may be backfilled. However, areas of open excavation over the PVC sleeve or existing service line may be backfilled without being inspected by LG&E.

3.14

Service Lines Per Building or Property

3.14.1 Single Family Dwellings Lots that are zoned for single family dwellings shall be entitled to one gas service line per lot. Single family dwellings include homes, manufactured homes, etc. 3.14.2 Separate Buildings on One Parcel a. Each building containing one or more complete residential dwelling or commercial business units located within a single parcel of land may be entitled to one service line. This entitlement does not apply to garages, storage sheds, or other outbuildings that serve as satellites to the principal units served. Individual units that share a common wall or are otherwise connected are to be considered collectively as one building. b. LG&E reserves the right to limit the number of service lines within a single parcel of property when necessary to ensure safe operation or when separate buildings can be properly served from a single meter location. 3.1

LG&E Residential Gas_handbook

Documents

high pressure

projected

substantial

avoid unnecessary

social security

service head

gas operations

malleable