Electrical Specifications

ELECTRICAL INSTALLATIONSGeneral Scope Of WorksSECTION IDescription A. The works to be executed under the contract shall be in accordance with the FIDIC Conditions of Contract for Electrical and Mechanical Works, Part I - General Conditions and Part II Special Conditions, The Specifications, Schedule of Prices and Drawings as enumerated in the Appendix to the Specifications and such other drawings or details as may be furnished or approved I writing by The Employer.Scope of WorksB. The Works shall include:1. Metering and panel boards.2. Cables3. Internal and external lighting4. Power outlets.5. Complete wiring for lighting, power and telephones.6. Testing and commissioning of the entire electrical system.7. Payment of all testing and inspection fees.General ProvisionsSECTION 2Extent of WorksA. Provide all labour, materials, services, Contractors equipment and everything whether of a temporary or permanent nature, required for the supply, installation, testing, setting to work and maintenance of the works, so far as the necessity for providing the same is specified in or reasonably to be inferred from the Contract.Variations and OmissionsA. Do not alter any of the works except as directed in writing by the Employer.B. Carry out any variation and omission authorized by the Employer as though the same were stated in the Specifications.C. Before carrying out any variation which will, in the opinion of the Contractor, involve any increase or decrease in the Contract Price, notify the Employer to that effect as soon as possible and request the Employers confirmation of instructions.D. On receipt of the Employers confirmation of instructions in respect of any variation, proceed immediately to carry out such instructions. Do not delay the work pending agreement of price.Codes and StandardsA. Do complete installation in compliance with the National Electrical Code, Latest Edition, Occupational Safety and Health Standards, the Electricity and Telephone Utilities and other Government Agencies requirements, except where specified otherwise.Government Agencies - Permits and FeesA. Submit to Electrical Inspectorate, Factory Inspectorate, etc. necessary number of drawings and specifications for examination and approval prior to commencement of work.B. Pay associated fees.SubmissionsSubmit the Employer for review, such drawings, product data and samples as specified, or as the Employer may reasonably require.Tender Drawings and SpecificationsA. Tender drawings are generally diagrammatic but are sufficient to enable tenders to be obtained.B. Any doubts as to the full intent of the drawings and the specifications shall be resolved by the Tenderer prior to completion of the Tender.C. In case of variations between the drawings and the specifications the drawings take precedence.D. Detail drawings shall be take precedence over small scale drawings.Contract Drawings, Specifications and other DocumentsA. Notwithstanding any dimensions which may be given on the drawings, the contractor shall check, at his own expense, all dimensions required for the manufacture of any materials or products.B. The Contractor shall draw to the Employers attention any significant discrepancies between drawings or drawings and specifications before assuming a particular interpretation.C. In case of variations from Codes, Standards, Statutory Regulations, etc., the drawings and specifications shall take precedence.D. The Contractor shall refer any such discrepancies to the Employer before assuming a particular interpretation.Installation DrawingsA. The Contractor shall, prior to manufacture and installation, prepare installation drawings for all the electrical services work.B. Two (2) prints of each installation drawing shall be marked For Examination and issued to the Employer for approval.C. When drawings are returned with no comments, the Contractor shall issue one negative and two prints of each drawing to the Employer for stamping For Construction.D. When drawings are returned with comments, the Contractor shall amend the drawings and re-submit for examination. The procedure for re-submittal shall be the same as an initial submittal. Each re-submitted drawing must be treated as a revision.E. Irrespective of whether or not the drawings have been examined by the Employer, responsibility for errors shall remain with the Contractor and no additional costs whatsoever will be payable as a result of any error.F. The Contractor shall correct any discrepancies, errors or omissions in the drawings and other particulars supplied by him, whether or not such drawings and particulars have been examined by the Employer.G. The following drawings shall form the installations drawings:1. Wiring diagrams for electrical equipment. Wiring diagrams shall be prepared for all plant requiring electrical connections. Where manufacturers original drawings are used, they shall be specific to the relevant plant and all references to optional features, etc. shall be deleted. All plant and equipment requiring electrical connections shall have adequate wiring diagrams fixed inside panels, etc.2. Any details drawings or manufacturers drawings required prior to or found necessary during erection, manufacturer or progress of the works.3. Detail drawings of all fabricated steelwork, brackets, supports and all other items of a similar nature.4. Detail plans, sections and elevations showing all required builders work, including size and position of all bases, plinths, holding down bolts, chases, trenches etc., in the structure or building fabric related where applicable to the column/building grid lines, to be built in or attached to the structure.Working and As-built DrawingsA. The Contract Drawings shall not be considered to be the working drawings.B. Sepia copies of the Contract Drawings can be provided at current rates if these are considered by the Contractor to be a suitable base from which the working drawings can be prepared.C. The Contract Drawings show the location in principle for the various services. The detailed position shall be determined and coordinated by the Contractor and shown on the working drawings.D. The Contractor shall keep a spare set of working drawings on site in order that all conduit runs, positions of points, etc. can be checked by the Employer.Working and As-Built DrawingsA. The Contractor shall adjust his working drawings to allow for site tolerances and discrepancies and changes in building layout where the principle and intent of the design of the services are not affected.B. Where the principle and intent of the design are affected, notice of the conflict shall be given to the Employer.C. The Employer shall have the right at all reasonable times to inspect on the Contractors premises all drawings for any portion of the works.D. The Contractor shall submit marked-up working drawings and other information to reflect progressive as-built status of the works at regular intervals, or as required by the Employer.E. The Contractor is responsible for all errors, omissions and deviations in marked-up drawings from actual as-built status of the works.Product Data and SamplesA. Where appropriate, manufacturers standard catalogue sheets, drawings, or other descriptive data may be submitted in lieu of samples.B. Above will be accepted if they conform to the following:1. Delete information which is not applicable.2. Provide all additional information applicable.C. Contractors responsibility for errors and omissions and deviations in submissions from the requirements of Contract Documents is not relieved by the Employers review of submission.D. Until the Employer gives written acceptance of specified deviations, work involving relevant products may not proceed.Builders WorkA. Builders work which is considered normal for the trade is included in this contract.B. Builders work shall mean:1. Cuttings and forming of holes, chases and recesses for services through walls, floors, ceilings, partitions, roofs, etc. and making good.2. Buildings-in of brackets, ragbolts or other form of services suspension, or plant fixing.3. Formation of concrete bases, plinths, etc.4. Building of concrete manholes, trenches, etc. for covered distribution.C. Excavation of trenches for buried services and filling-in of same after services are laid.D. Builders work drawings shall be prepared by the Contractor which show all builders work requirements. The drawings shall show overall weight of items of equipment where necessary.E. Openings in structural concrete shall be incorporated during the design. The Contractor shall check that services can be installed in the openings provided.F. The supervising of all required builders work shall be carried by the Contractor to meet the requirements of the Contract Programme.G. No holes shall be cut in any steelwork, reinforced concrete or precast concrete without express permission in writing from the Employer.H. Holes shall not be cut in precast pre-stressed concrete under any circumstances.I. Any holes in steel-work that are approved must be drilled. Burning holes by means of welding equipment shall not be permitted unless by the Employers special written approval.Operating and Maintenance InstructionsA. The Contractor shall include for editing, printing, binding and producing three (3) copies of operational and maintenance manuals to the approval of the Employer.B. Prior to printing, two (2) draft copies of each booklet shall be submitted for the Employers approval, one (1) month prior to the contract completion.C. The Employer reserves the right to modify the draft copies prior to printing without incurring additional cost to the tender price.D. The manuals shall be completed in sufficient detail to enable the employers or building users trained staff to maintain, dismantle, reassemble and adjust all parts of the works.E. Completed manuals shall be of a standard equal to this specification with durable binders and properly printed covers. F. The manuals shall have a comprehensive index and he complied into sections for each system of the installation.Certificates from Governments AgenciesA. Furnish certificates of acceptance from the relevant Government Agencies on completion of Works.

Environmental ConditionsA. Equipment located outdoors shall generally be considered located in a tropical area subject to severe weather conditions. B. In addition, hazardous area or other special conditions will be specified in such cases.C. The equipment shall be capable of operating in specified conditions without damage.FinishesA. Finish all equipment to SpecificationsEquipment IdentificationA. Identify electrical equipment with nameplates and labels to Specifications.Wiring IdentificationB. Identify wiring with permanent identifying markings, either by number or colored plastic tape on both ends of phase conductors and other circuit wiring.C. Maintain phase sequence and colour coding throughout.D. Use colour coded wires in control and communication cables, matched throughout the system.Conduit and Cable IdentificationA. Colour code conduits and metallic sheathed cable to Specifications.Wire TerminationsA. To be suitable for copper conductors.Manufacturers LabelsB. To be visible and legible after equipment is installed.ProtectionA. Protect exposed live equipment during construction for personnel safety.B. Shield and mark all live parts LIVE 230 VOLTS or with appropriate voltage in English.Inspection and Testing during ManufactureA. Where required, obtain permission for the Employer to inspect and test on the manufacturers premises any plant to be supplied under the Contract.B. In the case of tests on the premises of the Contractor or any Sub-Contractor, provide such assistance, apparatus, etc., as may be reasonably demanded to conduct such tests efficiently.C. Where applicable, furnish to the Employer duly certified copies of tests during manufacture.D. Such inspections and tests if made shall not release the Contractor from any obligation under the Contract.DefectsA. Correct as soon as possible any defects arising from the defective design (other than a design furnished by the Employer and for which the Contractor has disclaimed responsibility in writing within a reasonable time after the receipt of the Employers instructions) materials or workmanship that may develop at any time up to the expiry of the Defects Liability Period.B. If required by the Employer, search for the cause of any defect or fault under the direction of the Employer.Tests on CompletionA. Before the Works are taken over by the Employer, conduct and pay for all tests specified including tests of:1. All grounding systems.2. Equipment insulation.3. Polarity.4. Phase sequence.5. Protective devices.6. Lighting.7. Loading.8. Signal circuits and systems.B. Carry out tests in the presence of the Employer or his representative.C. Provide instruments, metres, equipment and personnel required to conduct tests during and at conclusion of project.D. Submit test results.E. Give to the Employer in writing 21 days notice of the date after which tests on completion will commence. Unless otherwise agreed, the tests shall take place within 10 days of the said date on such day as the Employer shall in writing notify the Contractor.F. Repeat within a reasonable time, the appropriate tests of any portion of the works which had failed to pass the said tests and bear all reasonable expenses to which the Employer may be put by the repetition of the tests.G. Except where otherwise specified, provide such materials as may be requisite and reasonably demanded to carry out such tests efficiently.H. Carry out the tests in the following sequence:1. visual inspection2. continuity of branch circuit conductors3. continuity of protective (grounding) conductors, including main and supplementary equi-potential bonding4. earth electrode resistance 5. insulation resistance:i. use 500V megger for equipment up to 350V ratingii. USE 1.000V megger for equipment of 350-660V rating6. insulation of site-built and factory-built assemblies7. protection by electrical operation8. insulation of non-conducting floors and walls9. polarity10. earth fault impedance 11. earth leakage protective devices12. phase sequence13. prospective short circuit current to terminal and intermediate equipment14. load balance:I. Submit, at completion of work, a report listing all phases and neutral currents on relevant panel boards operating under normal load. State hour and date on which each load was measured and voltage at time of test.SECTION 3GENERAL - PART 1ScopeA. The scope of this work includes:1. Trenching and backfilling2. Underground ducts3. Concrete foundations for lighting poles4. Direct buried cables.PART 2 - PRODUCTSPVC DuctsA. Provide the following or equal approved:1. Schedule 40 rigid PVC ducts for general work below grade.2. Schedule 80 rigid PVC ducts in locations where ducts are subject to physical damage.B. Provide the following two types of ducts:1. Type I duct suitable for direct burial without concrete encasement.2. Type 2 duct suitable for concrete encasement.3. Type I duct shall be capable of withstanding continued loading likely to be encountered after installation.4. Ducts shall be designed for connection to couplings, fittings and boxes by the use of a suitable solvent-type cement.5. Ducts shall be free from cracks, holes and other defects.TrenchesA. Provide trench of sufficient width to allow proper laying and jointing of ducts.B. Grade trench bottom and remove all stones 75 mm diameter and larger.C. Do not alter trench routes without the Employers permission.DuctsA. Grade ducts away from buildings to prevent water entering buildings.B. Make all joints waterproof according to the solvent manufacturers instructions.C. Where indicated, provide a minimum of 75 mm concrete encasement to PVC ducts.BackfillingA. Backfill trenches using selected granular fill free from stones or organic matter and placed in layers not exceeding 100mm thickness.B. Where necessary compact backfill by hand to avoid damage to ducts.C. Compact until fill has reached a density equivalent to 95% Standard Proctor DensityConcrete Foundations for Lighting PolesA. Provide foundations as specified on the Drawings.Grounding ConnectionsA. Provide connectors of type specified.B. Carry out grounding connections in the manner specified.C. The approval of the Employer shall be obtained before grounding connections are covered up or buried.Direct Buried CablesA. Where indicated, provide cables of size and type specified for direct burial.B. Install cables as indicated on the Drawings.C. The approval of the Employer shall be obtained before cables are covered up or buried.INSTALLATION OF CABLES IN TRENCHES AND DUCTSSECTION 4PART 1 - GENERALA. Payment for the supply and installation of cables in trenches and ducts shall be per linear meter of trench.PART 2 - PRODUCTSGeneralA. Use bright colour electrical marker tape with the label WARNING - BURIED ELECTRICAL CABLE in all electrical trenches.PART 3 EXECUTIONTrenching and BackfillingA. Trench along routes for ducts and cables as shown on drawings.B. Before commencing work, establish location and extent of existing underground cables in areas of excavation. Use cable detector to locate underground cables. Avoid damaging existing underground cables throughout this contract. Make good and pay for damage to existing cables resulting from work.C. No guarantee is given on completeness or accuracy of known underground cable indicated.D. Do not commence backfilling until area of work to be backfilled has been inspected and approved by the Employer.E. Areas to be backfilled shall be free from any debris.Trenching and BackfillingA. Place and compact fill materials in continuous horizontal layers not exceeding 300mm loose depth.B. Use common or granular backfill material as indicated or directed.C. The surface shall be restored to its original level and condition.D. Maintain one diameter width of duct separation minimum between ducts in common trench.Cable Installation in DuctsA. Install cables in ducts as indicated.B. Do not pull spliced cables inside ducts.C. Install multiple cables in duct simultaneously.D. Use approved lubricants of type compatible with cable jack to reduce pulling tension.E. Before pulling cable into ducts and until cables are properly terminated, seal ends of cables with moisture seal tape.F. After installation of cables, seal duct ends with duct sealing compound.TestingA. Perform tests in accordance with Section 2.B. Perform tests using qualified personnel only. Provide necessary instruments and equipment to demonstrate that:1. Circuits are continuous and free from short circuits and grounds;2. Circuits are free from unspecified grounds; that resistance to ground of circuits is not less than 50 mg ohms.3. Provide the Employer with a list of test results showing location at which each test was made, circuit tested and result of each test.PANEL BOARDSSECTION 5PART 1 - GENERALType of Panel boardsA. This specification covers distribution panel boards where applicable as well as lighting and appliance panel boards.B. Operating environment Tropical with 32 degrees C average ambient and 92 % R.H.SubmittalsA. Within one (1) month of order being placed submit manufacturers specifications on all products listed in this Specification.PART 2 - PRODUCTSEnclosuresA. Provide galvanized sheet steel cabinet type enclosures, minimum 14 gauge thickness, in sizes and NEMA types as indicated.B. Design for surface or recessed mounting as appropriate with ample wiring gutters on top, sides and bottom for all wires and connections.C. Provide sufficient number of adequately sized knock-outs for termination glands.D. Provide enclosures fabricated by same manufacturer as panel boards, and which mate properly with panel boards to be enclosed.E. Provide Tropicalised, anti-corrosive treatment and baked gray enamel finish.F. Equip cabinet doors with flush locks.G. Provide with interior circuit-directory frame and card with clear plastic covering.Panel boardsA. Construct with solid copper busbars, securely mounted and braced.B. Provide solder less lugs on the main bars, approved for copper conductors.C. Provide full sized neutral bus with suitable lugs for feeders requiring neutral connections.D. Provide a bare uninsulated grounding bar, bolted to enclosure, with suitable lugs for feeders requiring grounding connections.E. Provide moulded case main and branch circuit breaker for each circuit.F. Provide all circuit breakers from one manufacturer.Circuit BreakerA. Provide moulded case circuit breaker, tropicalised for 90 % relative humidity at 40oC ambient.B. All breakers shall provide over-current and short circuit protection.PART 3 - EXECUTIONInstallationA. Make good any damage to panel finishes arising during handling and erection.B. Provide panel schedule identifying the circuits associated with each breaker.C. Submit copy of panel schedule to the Employer.TestingA. Arrange for testing and acceptance of the panel boards in the manner approved by the Government Electrical Inspectorate or relevant Authority.B. Submit copy of Acceptance Certificates to the Employer.WIRES AND CABLESSECTION 6PART 1 - GENERAL A. The scope of work includes supply and installation of all wires and cables, together with connector and other accessories necessary to complete all circuitry indicated by the Drawings and schedules.PART 2 - PRODUCTSA. Material shall confirm to the following or equal approval:B. PVC Wire & Cable (non-armoured) - BS 6004 - 1990C. PVC Wire & Cable (armoured) - BS 6346 - 1989.D. XLPE Wire and Cable - BS 5467 - 1989Low Voltage Cables & Wires (Lighting and Power)E. Low voltage wires and cables shall be stranded copper, 70o C, PVC insulated and 90o C, XLPE insulted, 600/1000 volt grade, with steel wire armour and PVC sheath where specified.F. No wire shall be smaller than 2.5 sq.mmTelephone WireA. Tinned 22 AWG (0.645 mm) solid round copper wire, polythylene insulated, fully identified with colour coding, with overall polyvinyl jacket.Material Schedule B. Provide wires and cables listed in schedule or shown on Drawings.PART 3 EXECUTIONGeneral InstallationA. Install cables, prepare ends and terminate.B. Sizes of wires and cables are indicated on the drawings and schedules.C. Install wires and cables as indicated on the Drawings or in an approved manner as agreed with the Employer.D. Use an extra conductor core in each circuit for equipment grounding. In the case of armoured cables, the armour shall provide equipment grounding on condition that cable terminations are made in an approved manner.E. Carry out all wiring in the loop in system. No joining is permitted. All main feeder circuits shall run their entire length in continuous pieces without joints or spices.F. Contractor shall make use of approval wiring methods using raceways, wireways, and approved methods of support.G. Wiring clipped to surface will not be accepted without the Employers approval.INTERIOR BUILDING LIGHTINGSECTION 7PART 1 GENERALManufacturer A. Provide materials from manufacturers of interior lighting fixtures to types required, whose products have been in satisfactory use in similar service for at least 5 years.Fixtures CatalogueA. Fixture products of manufacturers other than those specified may be proposed, provided they are of similar design, efficient and are approved by the Employer.SubmittalsA. Submit two (2) copies of manufacturers data on lighting fixtures, including photometric data, to the Employer.B. Submit samples of fixtures for the Employers approval where requested.PART 2 PRODUCTSGeneral A. Provide fixtures complete with housing, lamps, ballasts and with all fittings and wiring.B. Provide florescent fixtures with energy efficient lamps.HID Lamp BallastA. Provide high power factor energy efficient ballasts (90% min.).Fluorescent Lamps BallastA. Provide ballasts with high power factor (90% min.), rapid-start, low-noise features, Class P, with internal thermal protection or with electronic ballast (whichever is specificed)Exit SignsA. Provide illuminated exit signs with integral battery packs.B. Construct housing of 20-gauge steel and finish in baked white enamel.C. Equip for pendant mounting and 115 volt operation.D. Provide green EXIT letters stencil type face. Do not provide glass face.E. The lettering for these signs shall not be less than 127 mm in size.F. Equip with sealed re-chargeable Ni-Cad battery pack and charger unit, capable of standby operation for at least 90 minutes.G. Equip with fluorescent lamps.PART 2 PRODUCTSFixtures TypesA. Refer to lighting layout drawing and Bill of Quantities.PART 3 EXECUTIONInstallationA. Install fixtures in accordance with manufacturers written instructions.B. Fasten fixture securely to structural support; ensure that solid pendant fixtures are plumb.C. Protect installed fixtures from damage during remainder of construction period.D. Clean fixtures of dirt and debris upon completion of installation.Field Quality ControlA. Test fixtures upon completion of installation.B. Correct malfunctioning units; remove and replace with new units where necessary and retest.C. At the time of Taking-Over, replace lamps which are noticeably dimmed after Contractors use and testing.D. Replace defective and burnt out lamps for a period of one year after date of Taking-Over.GroundingA. Provide tight equipment grounding connection to each fixture and standard as indicated.EXTERNAL LIGHTINGSECTION 8PART I GENERALManufacturerA. Provide materials from manufacturers of outdoor lighting fixtures of types required, whose products have been in satisfactory use in similar service for at least 5 years.Fixtures CatalogueA. Fixture products of manufacturers, other than those specified may be proposed, providing they are of similar design, equally efficient and are approved by the Employer.SubmittalsA. Submit two (2) copies of manufacturers data on lighting units including poles, brackets, luminaries and lamps to the Employer.B. Submit photometric data for each fixture to the Employer.Material Delivery Storage and HandlingA. Deliver fixtures and fittings wrapped in factory containers.B. Store and protect all materials from construction traffic and debris.C. Handle lighting poles, brackets, etc. carefully to prevent breakage, denting and damage to finish.PART 2 PRODUCTSGeneralA. Provide fixtures complete with housing, lamps, ballast and all fittings and wiring.B. Comply with additional fixture requirements shown on drawings.Lighting PolesA. Provide metal, raceway-type lighting poles. Equip with grounding connections readily accessible from hand hole; and complying with the following features:Material:Galvanised steel or Aluminium (extruded or spun) as specified on the Drawings.Configuration:Anchor base type with hand hole and cover.Accessories:Anchor bolts, etc., as recommended by pole manufacturers.BracketsA. Provide metal brackets of sizes and types to accommodate fixture attachments:Material:Galvanised steel.Pole-Mounted FixturesA. Provide the fixtures as specified in the Drawings and Bills of Quantities.B. Provide photoelectric control including photocell to individual fixtures or where specified, group control of fixtures to be lighting contactor with photoelectric control.PART 3 EXECUTIONInstallationA. Install lighting units in accordance with manufacturers written instructions to ensure that units fulfill requirements.B. Use belt slings or rope (not chain or cable) to raise and set finished poles to protect finishes.C. Set poles plumb. Support adequately during anchoring to foundations.Field Quality ControlA. Test lighting system upon completion of installation.B. Correct malfunctioning units; remove and replace with new units where necessary and retest.C. At the time of substantial completion, replace lamps which are noticeably dimmed after Contractors use and testing, as judged by the Employer. Replace defective and burnt out lamps for a period of one year after date of substantial completion.Grounding A. Provide tight equipment grounding connection to each fixture and pole as indicated.GROUNDING SECTION 9PART 1 GENERALScopeA. The scope of the work includes grounding of the following:1. All non-current carrying equipment enclosures.2. Panel boards.3. Transformer neutrals.B. The extent of the work is indicated on the Drawings.PART 2 PRODUCTSStandardsA. Unless otherwise indicated, grounding shall conform to BS CP 1013 : 1965.Copper ConductorsA. Bare, stranded, tinned, soft annealed, sized per drawings.Rod ElectrodesB. Copper clad steel 10 mm diameter by 3 meters long.Copper Flexible Jumper StrapsA. Protect braid with copper bolt on both ends.B. Use flexible jumper for grounding hinged doors to main frame of electrical equipment enclosures.Panel Ground BarsA. Provide full size ground bars in each lighting and appliance panel board.Field WeldingA. Use Cadweld joints for all below-ground connections.B. Obtain Employers approval for other types of joints.Bolted ConnectorsA. Use bolted connectors for grounding connections to equipment provided with lugs.PART 3 EXECUTIONGeneralA. Install accessories to manufacturers instructions.B. Protect any exposed grounding conductors from damage by enclosing in metallic duct.C. Provide computer circuits with a separate ground bar.Inspection A. Do not proceed with work until conditions are satisfactory.B. Do not cover up work until it has been inspected and approved by the Employer.TestingA. Carry out ground resistance test on completion.B. Where tests show resistance to ground is over 3 ohms take steps to reduce resistance to 3 ohms or less by driving additional electrodes and/or chemical treatment of soil; re-test to check compliance.RACEWAYS FOR BUILDING WIRINGSECTION 10PART I GENERALTypes of RacewaysA. Types of raceways in this section include:1. Electrical metallic tubing (EMT)2. Surface metal raceways3. Rigid PVC conduit.SubmittalsA. Before commencement of work, prepare samples of material to used for the Employers approval.PART 2 MATERIALSGeneral A. Provide metallic conduit, tubing and fittings of types, grades and sizes for each service indicated. Where types and grades are not indicated, provide proper selection determined by Contractor to fulfill wiring requirements, and complying with, applicable portions of IEE Regulations or other approved code for wireways.EMTB. Electrical Metallic Tubing (MT) to the following or approved:C. CSA C22.2 No. 83 1976EMT FittingsA. Use Type 2 fittings for concrete tight connections.B. Use Type 3 fittings for other miscellaneous connections.PVC Conduit and TubingA. Provide rigid PVC conduit and tubing to the following or approved equal CSA C 22.2 No. 136 1966.B. Use NEMA Type I or equal approved material for encasement in concrete.C. Use NEMA Type 2 and Type 3, Schedule 40 PVC or equal approved for normal above ground duty.PVC Conduit and Tubing FittingsA. Match with conduit/tubing type material.Surface Metal RacewaysA. Provide surface metal raceways of sizes indicated.B. Open type, constructed of heavy gauge Aluminium with knockouts for strapping cables along the route.PART 3 EXECUTIONInstallationA. Co-ordinate with other work as necessary.B. Level and square raceway and install at proper elevations.C. Complete raceway installation before installing corresponding cable/wires.D. Wherever possible, install horizontal raceway runs above water piping.E. Ensure that all raceways are free of obstruction and leave fish-wires in conduit/tubing for future pulling-in of wire and cables.F. In exposed areas install all raceways embedded in concrete/blockwork unless physical constrains dictate otherwise.G. The Employers permission must be obtained for all surface wiring or surface installation of raceways.12.37ELECTRICAL BOXES AND FITTINGSSECTION 11PART 1 GENERALType of MaterialA. Types of material in this section include:1. outlet boxes2. junction boxes3. pull boxes 4. conduit boxes5. bushings6. locknuts7. knockout closuresB. Materials shall be metallic or alternatively of PVC to suit raceway system selected by Contractor.SubmittalsC. Submit samples of all materials for Employers approval.PART 2 MATERIALSInterior Outlet BoxesA. Provide outlet boxes of suitable sizes with threaded screw holes and corrosion resistant screws for securing box covers and wiring devices.B. Provide outlet box accessories as required, which are compatible with boxes being used.Interior Outlet BoxesA. Choice of accessories is Contractors option.Weatherproof Outlet BoxesA. Metallic weatherproof boxes shall be cast-metal.B. Weatherproof boxes shall have face plates, gaskets and corrosion-resistant fasteners.Junction and Pull BoxesA. Provide boxes suitable for each location and installation.B. Equip with stainless steel nuts, bolts, screws and washers or approved equal corrosion resistant material.Conduit BodiesA. Provide conduit bodies suitable for each use and installation.B. Equip with removable covers and corrosion resistant screws.Bushings, Lockouts and Knockouts ClosuresA. Provide corrosion resistant material of types and sizes to suit each use and installation.PART 3 EXECUTIONInstallationA. Co-ordinate installation of boxes and fittings with other work.B. Provide weatherproof outlets for interior and exterior locations exposed to weather or moisture.C. Provide knockout closures to cap unused knockout holes where blanks have been removed.D. Install boxes and conduit bodies such as to ensure ready accessibility of electrical wiring.E. In exposed areas install boxes and fittings in such a way that covers finish flush with finished surfaces.F. The Employers permission must be obtained for all surface mounted boxes and fittings.WIRING DEVICESSECTION 12PART I GENERALTypes of DevicesA. Types of devices in this section include:1. Receptacles (convenience outlets)2. Switches3. Wall plates.SubmittalsA. Submit samples of devices for Employers approval.PART 2 MATERIALSGeneralA. Provide devices of types, colour and electrical ratings as indicated and complying with the following or approved equal standards for wiring devices:1. NEMA Standard Pub. No WD 1.

B. Provide devices with white thermoplastic faces and faceplates for internal areas except as otherwise indicated.C. Colour selection to be verified with Employer.ReceptaclesGeneral Duty DuplexA. Provide polarized 2-pole and earth, 3 wire grounding, 15 A, 115 V outlet switched or unswitched.B. Provide both standard grade and tamper-resistant types.C. Tamper-resistant receptacles are to have spring loaded sliding shutters fitted directly behind the polarized blade slots. Operation will be such that any object placed in either single opening cannot move the internal mechanism to expose the contacts. The slides will move only if the two receptacles openings are penetrated simultaneously.230 V Duty DuplexD. Provide 2 pole and earth, 3 wire grounding, 230 V, industrial outlets of amperage specified in the Drawings and complying with BS 196.SwitchesSnapA. Provide general-duty flush one way and two way switches, 20A, 115 V with white, thermoplastic cover plates for internal areas.B. Provide heavy-duty 20A, 115V switches with steel cover plates for all other areas.Wall PlatesC. Provide switch and duplex outlet wall plates of types, sizes and with ganging and cutouts as indicated.D. Construct with metal screws for securing plates to devices; screw heads coloured to match finish of plates; plates coloured to match devices to which attached.E. Provide wall plates with the following features:Thermoplastic, smooth finish-internal areasStainless steel plate-all other areasPART 3 EXECUTIONInstallationA. Delay installation of wiring devices until wiring work is complete.B. Delay installation of wall plates until painting work is complete.GroundingA. Provide electrical continuous, tight grounding connections for wiring devices.TestingA. Prior to energising circuitry, test devices for electrical continuity and proper polarity connections.B. After energising circuitry, test devices to demonstrate compliance with requirements.ProtectionC. At time of Taking-Over, replace those items which have been damaged, including those burned or scorched by faulty plugs.ELECTRICAL CONNECTIONS FOR EQUIPMENTSECTION 13PART 1 GENERALDescription of WorkA. connections are hereby defined to include, but not necessarily limited to, connections for providing electrical power to equipment.B. Types of electrical power connections specified in this section include but are no limited to the following:1. Panel boards2. Outlets3. Earth4. Lighting FixturesManufacturersA. Provide materials from manufacturers engaged in manufacture of electrical connectors and terminals, of types and ratings required, and ancillary connection materials, including electrical insulating tape, electrical flux and cable ties, whose products have been in satisfactory use in similar services for not less than 5 years.SubmittalsA. Product Data: Submit manufacturers data on electrical connectors, terminals and materials.PART 2 PRODUCTSGeneralA. For each electrical connection indicated, provide complete assembly of materials, including but not necessarily limited to, pressure connectors, terminals (lugs), electrical insulating tape, heat-shrinkable insulating tubing, cable ties, solderless wire nuts, and other items and accessories as needed to complete splice and terminations of types indicated.Metal Conduit, Tubing and FittingsGeneralA. Provide metal conduit, tubing and fittings of types, grades, sizes and weights (wall thickness) indicated for each type service. Where types and grades are not indicated proper selection as determined by Installer to fulfill wiring requirements; comply with NEC requirements for raceways. Provide materials in accordance with the following listing.i. Electrical metallic tubingii. EMT fittingiii. PVC conduit.Wire, Cable and ConnectorsWireA. Unless otherwise indicated, provide wires/conductors for electrical connections which match wires/connectors of wiring supply power.Connectors and TerminalsA. Provide electrical connectors and terminals as recommended by connector and terminal manufacturer for intended applications.Electrical Connection AccessoriesA. Provide electrical insulating tape heat-shrinkable insulating tubing and booths, wire cable ties as recommended for use by accessories manufacturers for the type of services indicated.FIRE DETECTION AND ALARM SYSTEMSECTION 14PART I GENERALType of SystemA. Combination, zoned, non-coded.Quality AssuranceManufacturerA. Firms whose products have been in satisfactory use for not less than 5 years.12.40.3InstallerA. Qualified with at least 5 years successful installation experience on similar work.ComponentsA. Provide system components which are UL listed and labelled.SubmittalsA. One mouth after order is placed, submit two (2) sets manufacturers data on system including but not limited to, instructions for installation, operation and maintenance and a 1-year list of spares as recommended by the manufacturer. Also include standard or typical riser and wiring diagrams.B. Submit the Tender the priced list of recommended spares.PART 2 PRODUCTSManufacturersA. Subject to compliance with requirements, approved manufacturers include, but are not limited to the following:i. Edwards Co. Inc.ii. Walter Kiddle and Co. Ltd.iii. General Signal Corp.iv. Honeywell, Inc.v. McGraw-Edison Co.vi. Pyrotronics Div., Baker Protective Services Inc.vii. Simplex Time Recorder Co.General System DescriptionA. Combination, zoned, non-coded system: Either manual activation of a fire alarm station or activation of an automatic initiating device energising all fire alarm signalling devices, sounding a non-coded alarm and providing zone identification on an annunciator panel.12.40.8WiringA. Power supply to the system shall be 115 V, 60 Hz.B. Provide wiring in accordance with manufacturers recommendations.C. Wire resistance in alarm receiving circuits shall not exceed 50 ohms.D. Voltage drop in audible signal circuits, shall not exceed 10%.E. Temperature rating of cables shall not be less than 85o C.Control UnitA. House control unit in a surface mounted cabinet with a lockable hinged door.B. Provide unit with the number of alarm initiating and signalling circuits as indicated in the drawings and Bill of Quantities.C. Provide necessary indications, visible when cabinet door is closed, including the following:1. power on2. common trouble3. signal silence4. separate alarm lamps.D. DProvide necessary controls and indicators, visible when cabinet door is open, including the following:1. lamp test push-button2. reset push-button3. ground indicator4. separate trouble indicators.Smoke DetectorsA. Provide dual chamber, plug-in type, ionization smoke detectors, mounted to a lock base.B. Field adjustments and sensitivity measure shall be possible without removal of the detector head from its base.C. Measurement of detector sensitivity shall provide a discrete electrical value.Initiating CircuitsA. For each initiating circuit, provide a separate zoned trouble light visible when the control unit cabinet door is open.Signal CircuitsA. Provide electronically supervised signal circuits responding to open circuit, ground or short circuit with a trouble signal without opening the supply protective device. For each signal circuit, provide a separate zoned trouble light, visible when the control unit cabinet door is open.Vibrating SignalsA. Provide signal circuits capable of sounding up to 20 vibrating polarized bells or up to 15 polarized horns continuously.12.41.14Standby BatteryA. Provide sealed, maintenance free battery pack and automatic charger inside a steel enclosure in the control unit.B. Provide electronic supervision of the battery pack and associated wiring such that a fault shall energise the trouble circuitry.C. Size battery pack to provide 24 hours of supervisory operations followed by a 5 minute alarm.D. Provide automatic change-over from AC to battery and vice versa.PART 3 EXECUTIONElectronic SupervisionA. In wiring a supervised component, terminate each circuit conductor under a screw or wire terminal of the component.B. Disconnection of the component shall not cause the trouble signal to operate.TestingA. On completion of installation, check all detectors and circuits for proper functioning; adjust or replace units, as necessary.B. Submit copy of full test report to the Employer.C. Prices for Electrical Installation are to include for all considerations arising from the specification.