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Information Technology and Communications
Complex
Saudi Arabia - Riyadh
MEP Design Verification Report
Underground Services Final Report
Report No. 1
Prepared for
Drake & Scull International
January 14th
, 2012
Rev 1
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Quality Control Sheet
Project ITCC- 18 ParcelsLocation Riyadh, KSAClient Drake & Scull International
Att. Mr. Saher Kamal, Project Director
Prepared by Jain Consultants International
Contact person Ammar Nahya , CEO
Amman/ 7th Circle beside Royal Jordanian H.Q.
P.O. Box 143833
Amman 11814
Jordan
Tel: +962-6-5857690
Fax: +962-6-5857035
Email:[email protected]
Submitted to Drake & Scull International
PO Box 15130
Riyadh 11444
Kingdom of Saudi Arabia
Tel: +966 1 464 3037
Fax: +966 1 464 3375Contact person Mr. Saher Kamal, Project Director
Document Register:
Item Revision No. Date Description
DVR251011 1 January 14th , 2012MEP Design verification report
# 1
Quality Control Log:
Item Originator Reviewer Authorized By
DVR251011 SIM, IMH AMH, IMH ASN
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Table of Contents
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TABLE OF CONTENTS
I. PROJECT INFORMATION ..................................................................................... 5II.
EXECUTIVE SUMMARY ........................................................................................ 5A. INTRODUCTION ............................................................................................... 5B. METHODOLOGY ............................................................................................... 6C. SUMMARY OF FINDING S ............................................................................... 6
1. MECHANICAL ............................................................................................. 72. ELECTRICAL .............................................................................................. 8
III. RECOMMENDATIONS ........................................................................................... 9A. MECHANICAL ................................................................................................... 9B. ELECTRICAL ..................................................................................................... 9
IV. DETAILED ANALYSIS ............................................................................................ 57A. MECHANICAL ................................................................................................... 57
1. PUBLIC HEALTH......................................................................................... 572. HVAC .............................................................................................................. 1733. FIRE FIGHTING ........................................................................................... 173
B. ELECTRICAL ..................................................................................................... 1741. GROUNDING & LIGHTNING PROTECTION ........................................ 1742. NORMAL & EMERGENCY LIGHTING .................................................. 2023. POWER & LOW VOLTAGE DISTIBUTION ........................................... 2024. IT NETWORK ............................................................................................... 2025. FIRE ALARM & DETECTION ................................................................... 202
V. REFERENCE STANDARDS .................................................................................... 203VI. APPENDICES ..................................................................................................... 205
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I. PROJECT INFORMATIONThe project is located in the northern part of Riyadh at the intersection of Imam Saud
Street and Takhasusi Street.
The project consists of 13 buildings with a total built up area of 431,304 m2 divided into
several building types of commercial and retail.The MEP design was done by Zuhair Fayez Partnership Consultants and the MEP
contract was awarded to Drake & Scull International DSI. As a part of their contractual
agreement, DSI is required to verify the MEP design for:
1- Validity2- Constructability3- Functionality
DSI has signed a contract with Jain Engineering Consultants International to verify the
MEP design and issue their results in stages to coincide with construction activities. Since
the main contractor is near casting the lowest basement slab, it is important for DSI to
verify design of services below that slab (Drainage, sump pits, groundingetc) and
produce related shop drawings first.
II. EXECUTIVE SUMMARYA. Introduction
The purpose of this report is to provide information regarding the design validation of
the MEP systems for the Information Technology and Communications Complex(ITCC)- 18 Parcels Project in Riyadh, KSA. The design review was conducted to
highlight any potential impact caused by the design on the construction activities of
the project. The point of view expressed in this report is that of the author which is
based on International Practices and Standards. It is no meant to be condemnatory or
judgmental of the current design. The intention of this report is to highlight issues
related to the progress of engineering works such as production of shop drawings and
materials ordering. The design review was conducted on sample areas of the project
for each discipline of the MEP systems as per the scope of work. This spot check is
an indication of the general condition of the design and must not be taken as a
complete list of design issues that might impact construction activities. The designreviewer reserves the right to highlight more issue should they arise in the future.
The information presented in this report is based on the Issued for Construction (IFC)
drawings, specifications and relevant calculations issued for the project.
It must be noted that the review was done without altering any design parameters
used by the original designer.
The following is a summary of the design review for the underground MEP systems
for all buildings. Supporting documents and more information may be found in
subsequent sections (Underground services for this report means: All services
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running below the lowest slab in a building and do not include analysis of
underground services running outside the building):
B. MethodologyA comprehensive review of IFC documents (MEP drawings, specifications andcalculations) was carried out using the best up-to-date quality assurance procedures to
identify best practice that should be used and current problems in the design that
should be avoided. The verification also considers the requirements for installation,
commissioning, operation and control and subsequent maintenance of systems
selected at the design stage.
The design verification process provides information on required design inputs,
outputs and practical key design watch-points for MEP building services topics which
will lead to improvements in the subsequent implementation of the design, and
reduce the risk of problems occurring during installation, commissioning or systemoperation. This was expressed as a summary tables as shown in further pages. These
tables are then followed by detailed analysis for the drawings or specifications. The
analysis will include minor and major comments, inconsistency and contradiction
between drawings and/or drawings against specifications, lack of coordination with
other trades and ended by recommendations.
C. Summary of FindingsTables (M.1-M.13 & E.1-E.13) provide a summary of the following:
1. Availability of design documents: The review included checking for completenessof design documents such as drawings, specifications, calculations, detailsetc
2. Consistency between design documents within the same discipline: The reviewincluded examination of level of consistency between design documents prior to
checking against sample outputs
3. Coordination between design documents of an MEP discipline and otherdisciplines: The review included examination of coordination level between
various disciplines such as between drainage and structural or grounding and
structural
4. Compliance of design with International Standards and project requirementslisted in the specifications: The review included examination of compliance level
of the design with projects standards
The following observations were noted for the systems reviewed namely
UndergroundServices:
1. Some data are available for some buildings but not others, such as detailsdrawings; we have assumed such data are typical to all buildings.
2. Some buildings designs were compliant with specifications requirements butothers were not
3. Some designs that comply with specifications requirements were not compliantwith International Standards listed in the same specifications
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4. Many of the designs did not comply with sample calculations outputs.The following is a summary of review result for Mechanical and Electrical
disciplines:
1. Mechanical:a. HVAC (Not included in this report)b. Water (Only for underground services)
The design does not contain any water tanks or pipes that shall impact
underground services
c. Waste and Soil Drainage (Only for underground services)The following is a summary of findings in regards to above system. More
details, calculations and references may be found in subsequent sections:
i. In general, it appears that gravity pipe sizes are adequate and in somecases oversized which is acceptable
ii. In many cases, the forced flow discharge pipes are undersized (Up to1000 Pa/m)
iii. There are many discrepancies in regards to sump pit sizes and depthsbetween MEP floor plans, calculations and structural plans and sections
iv.
Many sump pit sizes were underestimated. Detailed calculations weredone and sizes on design drawings were found to be less than required
either due to deep pipe falls, pump physical size or flow
v. Sump pump calculations in many buildings were based on incorrectparameters. Such parameters include incorrect fixture units, rainfall
intensities, areasetc
vi. Slopes of many pipes are not as per standards (UPC or IPC)vii. In many cases where pipes are running in a raft slab, the long pipe run
final elevation is close to raft bottom. This is an issue that a structural
engineer must review and provide an opinion. Also, this shall impact pit
depths
viii. Pipe connection between elevator drain to sump pit is not considering thelow level of elevator drain connection. Also, flow from fire fighters
elevator drain is not considered in pump sizing
ix. There are no sand traps at the entry of sump pitsx. There are no information (size, capacity, calculationsetc) provided for
grease trap in WH06. Location of grease trap is close to populated areas
which is going to cause bad odors to transfer to restaurant and other
areas. Also, the grease trap is not shown on structural drawings
xi. There is no service connection to grey water tank in WH06 shown onplans or riser diagrams. All drainage from above floors is directly
connected to waste water network outside the building without any
recycling. Note that the design includes a set of calculations for this tank.
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In other buildings waste pipes are not connected to either external
network or grey water tanks
xii. There are many discrepancies in regards to grey water tank size betweencalculations, plans and structural drawings (In KB01, calculated size was
102 m3 and on MEP plans is shown as 216 m3)
xiii. All grey water tanks are oversized. In general, this is acceptable for othertypes of tanks. However, in a grey water system it is dangerous to store
untreated water more than 72 hours (IPC). It was found that tanks were
sized to store grey water for an average of 6-7 days
xiv. Most of grey water tanks are not provided with vent, make up water, overflow or drain connections
xv. In IT01, the plumbing drawings indicate grey water tank below ground.However, the same tank is shown on structural drawings above ground
d. Storm Water Drainage (Only for underground services)The following is a summary of findings in regards to above system. More
details, calculations and references may be found in subsequent sections:
i. Rainfall intensity values and area calculations were found to be incorrectand inconsistent between buildings
e. Fire Fighting (Not included in this report)2. Electrical:
a. Grounding & Lightning Protection (For the complete system in all buildings)The following is a summary of findings in regards to above system. More
details, calculations and references may be found in subsequent sections:
i. Calculations for grounding and lightning systems were not provided withIFC documents
ii. In general, lightning system designed overall resistance is withinstandard required values
iii. Grounding conductor for main electrical equipment is over sized (Whichis acceptable) in some buildings while in many other buildings it is
undersized
iv. Telecommunication clean grounding is not provided in many buildings.This means that number of grounding pits must be increased
v. Calculated Telecommunication grounding resistance (where provided)exceeds specification requirements. This means that number of
grounding pits and/ or rods is underestimated
vi. General grounding for RMUs, transformers, generators, LV switchgearsis not provided for many buildings
vii. Calculated grounding resistance for RMUs, transformers, generators, LVswitchgears (where provided) exceeds specification requirements
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viii. Available earth pits do not reflect the actual number of pits required fortelecommunication, general and lightning grounding system
ix. There are inconsistency within system installation details provided onIFC design drawings
x. Grounding rods within raft slabs (With a thickness of 0.7-1.3 meters) areshown to be 3.0 deep (Starting at 0.3 m below FFL). However, thestandard calls for 3.0 m of rod length to be extended vertically into earth.
Also, main ring electrode is shown on drawings to be installed 0.3 meters
below FFL of raft. This means the ring electrode is going to be buried
within raft. However, the specifications call for it to be 0.6 m below
grade and the NFPA 780 calls for it to be in direct contact with earth at a
depth of not less than 0.46 m.
xi. There are inconsistency between specifications and drawings in regardsto rod sizes, burial depth of ring electrode, embedded conduit sizesetc
b. Normal & Emergency Lighting (Not included in this report)c. Power & Low Voltage Distribution(Not included in this report)d. Fire Alarm & Detection (Not included in this report)e. IT Network (Not included in this report)
III. RECOMMENDATIONSIt is of the design reviewer opinion that underground services design requires revisions to bemade prior to proceeding with production of shop drawings or site installations as follows:
A. Mechanical:1. Water System: No design revisions are required in relation to this system for
underground services2. Waste and Soil Drainage System: In general pipe network design requires minor
revisions. However, sump pits, pumps, grey water system and rain water systemrequire major revision. Calculations must be re-done and results must becoordinated with other disciplines such as structural, electrical power,architecturaletc
B. Electrical:1. Lighting and Grounding System: Calculations must be redone based on actual
soil resistivity measurements done on site. Also, number of grounding pits, sizeand depth of rods, number of down conductors and general layout of system mustbe revised prior to producing shop drawings or start of installation on site
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Plumbing Drainage System
Building KB 01-02
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Check Foundation Type
Column BaseCheck Drainage PipeEncasement
Check Sump Pit FlowCalculations
Check Sump Pit HeadCalculations
Check Coordination BetweenSump Pit & Structural
Drawings
Check Gray Water TankCalculations
Check Non-Potable Water
Tank Calculations
Check Consistency BetweenDrainage Plans, Riser
Diagram & Calculations
Check Coordination BetweenGray Water System &
Structual Drawings
Table M.1
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Plumbing Drainage System
Building KB 03
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Check Foundation Type
RaftCheck Drainage Pipe
Encasement
Check Sump Pit FlowCalculations
Check Sump Pit HeadCalculations
Check Coordination BetweenSump Pit & Structural
Drawings
Check Gray Water TankCalculations
Check Non-Potable WaterTank Calculations
Check Consistency BetweenDrainage Plans, Riser
Diagram & Calculations
Check Coordination BetweenGray Water System &
Structual Drawings
Table M.2
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Plumbing Drainage System
Building RD 03
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Check Foundation Type Column BaseCheck Drainage Pipe
Encasement
Check Sump Pit FlowCalculations
Check Sump Pit Head
Calculations
Data is not Available, refer todetailed Analysis
Check Coordination BetweenSump Pit & Structural
Drawings
Check Gray Water TankCalculations Data is not Available, refer todetailed AnalysisCheck Non-Potable Water
Tank Calculations
Data is not Available, refer todetailed Analysis
Check Consistency BetweenDrainage Plans, Riser
Diagram & Calculations
Check Coordination Between
Gray Water System &Structual Drawings
Table M.3
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Plumbing Drainage System
Building RD 04
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Check Foundation Type
Column BaseCheck Drainage Pipe
Encasement
Check Sump Pit FlowCalculations
Check Sump Pit Head
Calculations
Data is not Available, refer todetailed Analysis
Check Coordination BetweenSump Pit & Structural
Drawings
Check Gray Water Tank
Calculations Check Non-Potable Water
Tank Calculations
Data is not Available, refer todetailed Analysis
Check Consistency BetweenDrainage Plans, Riser
Diagram & Calculations
Check Coordination BetweenGray Water System &
Structual Drawings
Table M.4
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Plumbing Drainage System
Building WH 01-04
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Check Foundation Type
Raft FoundationCheck Drainage Pipe
Encasement
Check Sump Pit FlowCalculations
Check Sump Pit HeadCalculations
Check Coordination BetweenSump Pit & Structural
Drawings
Check Gray Water TankCalculations
Check Non-Potable WaterTank Calculations
Check Consistency BetweenDrainage Plans, Riser
Diagram & Calculations
Check Coordination BetweenGray Water System &
Structual Drawings
Table M.5
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Plumbing Drainage System
Building WH 05
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Check Foundation Type Raft FoundationCheck Drainage Pipe
Encasement
Check Sump Pit FlowCalculations
Check Sump Pit HeadCalculations
Check Coordination BetweenSump Pit & Structural
Drawings
Check Gray Water Tank
Calculations
Check Non-Potable WaterTank Calculations
Check Consistency BetweenDrainage Plans, Riser
Diagram & Calculations
Check Coordination BetweenGray Water System &
Structual Drawings
Table M.6
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Plumbing Drainage System
Building WH 06
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Check Foundation Type
RaftCheck Drainage Pipe
Encasement
Check Sump Pit FlowCalculations
Check Sump Pit HeadCalculations
Check Coordination BetweenSump Pit & Structural
Drawings
Check Gray Water TankCalculations
Check Non-Potable WaterTank Calculations
Check Consistency BetweenDrainage Plans, Riser
Diagram & Calculations
Check Coordination BetweenGray Water System &
Structual Drawings
Table M.7
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Plumbing Drainage System
Building IT 01
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Check Foundation Type Column BaseCheck Drainage Pipe
Encasement
Check Sump Pit FlowCalculations
Check Sump Pit HeadCalculations
Check Coordination BetweenSump Pit & Structural
Drawings
Check Gray Water TankCalculations
Check Non-Potable WaterTank Calculations
Check Consistency BetweenDrainage Plans, Riser
Diagram & Calculations
Check Coordination BetweenGray Water System &
Structual Drawings
Table M.8
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Plumbing Drainage System
Building IT02
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Check Foundation Type Column BaseCheck Drainage Pipe
Encasement
Check Sump Pit FlowCalculations
Check Sump Pit Head
Calculations
Check Coordination Between
Sump Pit & StructuralDrawings
Check Gray Water TankCalculations Data is not Available, refer todetailed AnalysisCheck Non-Potable Water
Tank Calculations
Data is not Available, refer todetailed Analysis
Check Consistency BetweenDrainage Plans, Riser
Diagram & Calculations
Check Coordination BetweenGray Water System &
Structual Drawings
Table M.9
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Plumbing Drainage System
Building IT 03
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Check Foundation Type
Column BaseCheck Drainage Pipe
Encasement
Check Sump Pit FlowCalculations
Check Sump Pit HeadCalculations
Check Coordination BetweenSump Pit & Structural
Drawings
Check Gray Water TankCalculations
Check Non-Potable WaterTank Calculations
Data is not Available, refer todetailed AnalysisCheck Consistency Between
Drainage Plans, RiserDiagram & Calculations
Check Coordination BetweenGray Water System &
Structual Drawings
Table M.10
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Plumbing Drainage System
Building KB 04
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Check Foundation Type Column BaseCheck Drainage Pipe
Encasement
Check Sump Pit FlowCalculations
Check Sump Pit HeadCalculations
Check Coordination BetweenSump Pit & Structural
Drawings
Check Consistency BetweenDrainage Plans, Riser
Diagram & Calculations
Table M.11
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Plumbing Drainage System
Building KB 05
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Check Foundation Type Column BaseCheck Drainage Pipe
Encasement
Check Sump Pit FlowCalculations
Check Sump Pit HeadCalculations
Check Coordination BetweenSump Pit & Structural
Drawings
Check Consistency BetweenDrainage Plans, Riser
Diagram & Calculations
Table M.12
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Plumbing Drainage System
Building KB 06
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not provided
Owner/Operator requirement
Not providedCheck Foundation Type
Column Base
Check Drainage PipeEncasement
Check Sump Pit FlowCalculations
Check Sump Pit HeadCalculations
Check Coordination BetweenSump Pit & Structural
Drawings
Check Consistency BetweenDrainage Plans, Riser
Diagram & Calculations
Table M.13
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Grounding & Lightning Protection
Building KB 01-02
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Soil resistivity measurement Data not provided, refer todetailed analysis for
assumptions
Check type of earthingsystem to be employed (such
as TNS or TN-C-S)
Check local electricalcompany requirements and
electrical supplyarrangements
Check connections to othersystems and determine any
clean earth requirement
Refer to detailed analysis
Check earthing systemcalculations Data not provided, refer todetailed analysis andcalculations
Check schematic of mainearth bar and connections Data not provided
Check earth termination andspace required
Check electrical bondingdetails and provisions for
other systems such asceilings, catering equipment
and raised floors
Covered in the specificationsonly
Check relevant specificationclauses Refer to detailed analysis
Size of mainearthing/equipotentialbonding conductors
Refer to detailed analysis andcalculations
Check consistency betweenelectrical drawings Refer to detailed analysis
Check consistency betweenspecifications and drawings Refer to detailed analysis
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Grounding & Lightning Protection
Building KB 01-02
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Checking arrangement andlocation of earth pits (such as
coordination with othertrades (structural,Architectural and
mechanical))
Check the use of transientearth clamps for clamping
different earthing systems toprevent transient
disturbances
Refer to detailed analysisProvide main equipotential
bonding (required forlightning protection,
structure, incoming services,heating and ventilation).
Refer to detailed analysisProvide supplementarybonding conductors to
exposed and extraneousmetal work such as trunkingtrays, ceiling grid and raised
access floors
Covered in the specificationsonlyCheck that removable links
for testing are specified. Covered in the details onlyCheck that test link locationis coordinated with Architect Refer to detailed analysisCheck for provision of
protective earth and clean
earth bars at eachswitchroom and riserlocation
Refer to detailed analysisConsider whether dedicated
earths are necessary (forexample telecommunications
and electronic systems)
Refer to detailed analysisCheck air terminals are
considered with correct sizeand location
Check roof strike terminationnetwork is considered with
correct conductor size andlocation
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Grounding & Lightning Protection
Building KB 01-02
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Check down coductors areconsidered with correct
conductor size and spacing
Refer to detailed analysis
Table E.1
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Grounding & Lightning Protection
Building KB-03
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Soil resistivity measurement
Data not provided, refer todetailed analysis forassumptions
Check type of earthing systemto be employed (such as TNS
or TN-C-S)
Check local electricalcompany requirements and
electrical supply arrangements
Check connections to othersystems and determine any
clean earth requirement
Refer to detailed analysis
Check earthing systemcalculations Data not provided, refer to
detailed analysis andcalculations
Check schematic of main earthbar and connections
Data not provided
Check earth termination andspace required
Check electrical bonding
details and provisions for othersystems such as ceilings,
catering equipment and raisedfloors
Covered in the specificationsonly
Check relevant specificationclauses
Refer to detailed analysisSize of main
earthing/equipotential bondingconductors
Refer to detailed analysis andcalculations
Check consistency betweenelectrical drawings
Refer to detailed analysisCheck consistency betweenspecifications and drawings
Refer to detailed analysis
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Grounding & Lightning Protection
Building KB-03
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Checking arrangement andlocation of earth pits (such ascoordination with other trades(structural, Architectural and
mechanical))
Refer to detailed analysis
Check the use of transientearth clamps for clamping
different earthing systems toprevent transient disturbances
Refer to detailed analysisProvide main equipotential
bonding (required for lightningprotection,
structure, incoming services,heating and ventilation).
Refer to detailed analysis
Provide supplementarybonding conductors to exposed
and extraneous metal worksuch as trunking trays, ceilinggrid and raised access floors
Covered in the specificationsonly
Check that removable links fortesting are specified.
Covered in the details onlyCheck that test link location is
coordinated with Architect
Refer to detailed analysis
Check for provision ofprotective earth and clean earth
bars at each switchroom andriser location
Refer to detailed analysis
Consider whether dedicatedearths are necessary (for
example telecommunicationsand electronic systems)
Refer to detailed analysisCheck air terminals are
considered with correct sizeand location
Check roof strike terminationnetwork is considered withcorrect conductor size and
location
Check down coductors are
considered with correctconductor size and spacing
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
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Grounding & Lightning Protection
Building KB-03
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Table E.2
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Grounding & Lightning Protection
Building RD-03
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Soil resistivity measurement Data not provided, refer todetailed analysis for
assumptions
Check type of earthingsystem to be employed (such
as TNS or TN-C-S)
Check local electricalcompany requirements and
electrical supplyarrangements
Check connections to othersystems and determine any
clean earth requirement
Refer to detailed analysisCheck earthing system
calculations
Data not provided, refer todetailed analysis and
calculations
Check schematic of mainearth bar and connections
Data not provided
Check earth termination andspace required
Check electrical bondingdetails and provisions for
other systems such asceilings, catering equipment
and raised floors
Covered in the specifications
only
Check relevant specificationclauses
Refer to detailed analysisSize of main
earthing/equipotentialbonding conductors
Refer to detailed analysis and
calculations
Check consistency betweenelectrical drawings
Refer to detailed analysis
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
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DVR 251011/109 P a g e | 30 /292
Grounding & Lightning Protection
Building RD-03
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Check consistency betweenspecifications and drawings
Refer to detailed analysisChecking arrangement and
location of earth pits (such as
coordination with othertrades (structural,Architectural and
mechanical))
Refer to detailed analysis
Check the use of transientearth clamps for clamping
different earthing systems toprevent transient
disturbances
Refer to detailed analysis
Provide main equipotentialbonding (required forlightning protection,
structure, incoming services,heating and ventilation).
Refer to detailed analysis
Provide supplementarybonding conductors to
exposed and extraneousmetal work such as trunkingtrays, ceiling grid and raised
access floors
Covered in the specificationsonly
Check that removable linksfor testing are specified.
Covered in the details onlyCheck that test link location
is coordinated with Architect
Refer to detailed analysis
Check for provision ofprotective earth and clean
earth bars at eachswitchroom and riser
location
Refer to detailed analysis
Consider whether dedicatedearths are necessary (for
example telecommunicationsand electronic systems)
Refer to detailed analysis
Check air terminals are
considered with correct sizeand location Refer to detailed analysis
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
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Grounding & Lightning Protection
Building RD-03
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Check roof strike terminationnetwork is considered withcorrect conductor size and
location
Check down coductors are
considered with correctconductor size and spacing
Refer to detailed analysis
Table E.3
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Grounding & Lightning Protection
Building RD-04
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Soil resistivity measurement Data not provided, refer todetailed analysis for
assumptionsCheck type of earthing systemto be employed (such as TNS
or TN-C-S)
Check local electricalcompany requirements and
electrical supply arrangements
Check connections to othersystems and determine any
clean earth requirement
Refer to detailed analysis
Check earthing systemcalculations
Data not provided, refer todetailed analysis and
calculations
Check schematic of mainearth bar and connections
Data not provided
Check earth termination andspace required
Check electrical bondingdetails and provisions for
other systems such as ceilings,catering equipment and raised
floors
Covered in the specificationsonlyCheck relevant specification
clauses Refer to detailed analysis
Size of mainearthing/equipotentialbonding conductors
Refer to detailed analysis
and calculations
Check consistency betweenelectrical drawings
Refer to detailed analysisCheck consistency betweenspecifications and drawings
Refer to detailed analysis
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
33/292
DVR 251011/109 P a g e | 33 /292
Grounding & Lightning Protection
Building RD-04
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Checking arrangement andlocation of earth pits (such ascoordination with other trades(structural, Architectural and
mechanical))
Refer to detailed analysis
Check the use of transientearth clamps for clamping
different earthing systems toprevent transient disturbances
Refer to detailed analysisProvide main equipotential
bonding (required forlightning protection,
structure, incoming services,heating and ventilation).
Refer to detailed analysis
Provide supplementarybonding conductors to
exposed and extraneous metalwork such as trunking trays,ceiling grid and raised access
floors
Covered in the specificationsonly
Check that removable linksfor testing are specified.
Covered in the details onlyCheck that test link location is
coordinated with Architect
Refer to detailed analysis
Check for provision ofprotective earth and clean
earth bars at each switchroomand riser location
Refer to detailed analysis
Consider whether dedicatedearths are necessary (for
example telecommunicationsand electronic systems)
Refer to detailed analysis
Check air terminals areconsidered with correct size
and location
Refer to detailed analysis
Check roof strike terminationnetwork is considered with
correct conductor size andlocation
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
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Grounding & Lightning Protection
Building RD-04
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Check down coductors areconsidered with correct
conductor size and spacing
Refer to detailed analysis
Table E.4
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Grounding & Lightning Protection
Building WH 01-04
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Soil resistivity measurement Data not provided, refer todetailed analysis for
assumptionsCheck type of earthing systemto be employed (such as TNS
or TN-C-S)
Check local electricalcompany requirements and
electrical supply arrangements
Check connections to othersystems and determine any
clean earth requirement Refer to detailed analysis
Check earthing systemcalculations Data not provided, refer to
detailed analysis andcalculations
Check schematic of main earthbar and connections
Data not provided
Check earth termination andspace required
Check electrical bondingdetails and provisions for other
systems such as ceilings,catering equipment and raised
floors
Covered in the specificationsonlyCheck relevant specification
clauses Refer to detailed analysis
Size of mainearthing/equipotential bonding
conductors
Refer to detailed analysis andcalculationsCheck consistency between
electrical drawings Refer to detailed analysis
Check consistency betweenspecifications and drawings
Refer to detailed analysis
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
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Grounding & Lightning Protection
Building WH 01-04
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Checking arrangement andlocation of earth pits (such ascoordination with other trades(structural, Architectural and
mechanical))
Refer to detailed analysis
Check the use of transientearth clamps for clamping
different earthing systems toprevent transient disturbances
Refer to detailed analysisProvide main equipotential
bonding (required for lightningprotection,
structure, incoming services,heating and ventilation).
Refer to detailed analysis
Provide supplementarybonding conductors to exposed
and extraneous metal worksuch as trunking trays, ceilinggrid and raised access floors
Covered in the specificationsonly
Check that removable links fortesting are specified. Covered in the details only
Check that test link location iscoordinated with Architect Refer to detailed analysis
Check for provision ofprotective earth and clean earth
bars at each switchroom and
riser location
Refer to detailed analysis
Consider whether dedicatedearths are necessary (for
example telecommunicationsand electronic systems)
Refer to detailed analysisCheck air terminals are
considered with correct sizeand location
Refer to detailed analysis
Check roof strike terminationnetwork is considered withcorrect conductor size and
location
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
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DVR 251011/109 P a g e | 37 /292
Grounding & Lightning Protection
Building WH 01-04
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Check down coductors areconsidered with correct
conductor size and spacing
Table E.5
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Grounding & Lightning Protection
Building WH-05
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Soil resistivity measurement Data not provided, refer todetailed analysis for
assumptionsCheck type of earthing systemto be employed (such as TNS
or TN-C-S)
Check local electricalcompany requirements and
electrical supply arrangements
Check connections to othersystems and determine any
clean earth requirement Refer to detailed analysis
Check earthing systemcalculations Data not provided, refer to
detailed analysis andcalculations
Check schematic of main earthbar and connections
Data not provided
Check earth termination andspace required
Check electrical bonding
details and provisions for othersystems such as ceilings,
catering equipment and raisedfloors
Covered in the specificationsonly
Check relevant specificationclauses Refer to detailed analysisSize of main
earthing/equipotential bondingconductors
Refer to detailed analysis andcalculations
Check consistency betweenelectrical drawings
Refer to detailed analysisCheck consistency betweenspecifications and drawings
Refer to detailed analysisChecking arrangement and
location of earth pits (such ascoordination with other trades(structural, Architectural and
mechanical))
Refer to detailed analysis
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
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DVR 251011/109 P a g e | 39 /292
Grounding & Lightning Protection
Building WH-05
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Check the use of transientearth clamps for clamping
different earthing systems toprevent transient disturbances
Refer to detailed analysis
Provide main equipotentialbonding (required for lightningprotection,
structure, incoming services,heating and ventilation).
Provide supplementarybonding conductors to exposed
and extraneous metal worksuch as trunking trays, ceilinggrid and raised access floors
Covered in the specificationsonly
Check that removable links for
testing are specified.
Covered in the details only
Check that test link location iscoordinated with Architect Refer to detailed analysis
Check for provision ofprotective earth and clean earth
bars at each switchroom andriser location
Refer to detailed analysis
Consider whether dedicatedearths are necessary (for
example telecommunicationsand electronic systems)
Refer to detailed analysis
Check air terminals areconsidered with correct size
and location
Refer to detailed analysis
Check roof strike terminationnetwork is considered withcorrect conductor size and
location
Check down coductors are
considered with correctconductor size and spacing
Table E.6
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
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Grounding & Lightning Protection
Building WH-06
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Soil resistivity measurement Data not provided, refer todetailed analysis for
assumptions
Check type of earthing systemto be employed (such as TNS
or TN-C-S)
Check local electricalcompany requirements and
electrical supply arrangements
Check connections to othersystems and determine any
clean earth requirement Refer to detailed analysis
Check earthing systemcalculations
Data not provided, refer todetailed analysis and
calculations
Check schematic of main earthbar and connections
Data not provided
Check earth termination andspace required
Check electrical bonding
details and provisions for othersystems such as ceilings,
catering equipment and raisedfloors
Covered in the specifications
only
Check relevant specificationclauses
Refer to detailed analysisSize of main
earthing/equipotential bondingconductors
Check consistency between
electrical drawings Refer to detailed analysis
Check consistency between
specifications and drawings
Refer to detailed analysis
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
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DVR 251011/109 P a g e | 41 /292
Grounding & Lightning Protection
Building WH-06
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Checking arrangement andlocation of earth pits (such ascoordination with other trades(structural, Architectural and
mechanical))
Refer to detailed analysis
Check the use of transientearth clamps for clamping
different earthing systems toprevent transient disturbances
Refer to detailed analysis
Provide main equipotentialbonding (required for lightning
protection,structure, incoming services,
heating and ventilation).
Provide supplementary
bonding conductors to exposedand extraneous metal work
such as trunking trays, ceilinggrid and raised access floors
Covered in the specificationsonly
Check that removable links fortesting are specified. Covered in the details only
Check that test link location iscoordinated with Architect Refer to detailed analysis
Check for provision ofprotective earth and clean earth
bars at each switchroom andriser location
Refer to detailed analysisConsider whether dedicated
earths are necessary (forexample telecommunications
and electronic systems)
Refer to detailed analysisCheck air terminals are
considered with correct sizeand location
Refer to detailed analysis
Check roof strike terminationnetwork is considered withcorrect conductor size and
location
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
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DVR 251011/109 P a g e | 42 /292
Grounding & Lightning Protection
Building WH-06
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Check down coductors areconsidered with correct
conductor size and spacing
Table E.7
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
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Grounding & Lightning Protection
Building IT-01
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Soil resistivity measurement
Data not provided, refer to
detailed analysis forassumptions
Check type of earthing systemto be employed (such as TNS
or TN-C-S)
Check local electricalcompany requirements and
electrical supply arrangements
Check connections to othersystems and determine any
clean earth requirement
Refer to detailed analysis
Check earthing systemcalculations Data not provided, refer to
detailed analysis andcalculations
Check schematic of main earthbar and connections
Data not provided
Check earth termination andspace required
Check electrical bondingdetails and provisions for other
systems such as ceilings,catering equipment and raised
floors
Covered in the specificationsonly
Check relevant specificationclauses Refer to detailed analysisSize of main
earthing/equipotential bondingconductors
Refer to detailed analysis andcalculationsCheck consistency between
electrical drawings Refer to detailed analysisCheck consistency betweenspecifications and drawings Refer to detailed analysisChecking arrangement and
location of earth pits (such ascoordination with other trades
(structural, Architectural andmechanical))
Refer to detailed analysis
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
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DVR 251011/109 P a g e | 44 /292
Grounding & Lightning Protection
Building IT-01
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Check the use of transientearth clamps for clamping
different earthing systems toprevent transient disturbances
Refer to detailed analysisProvide main equipotential
bonding (required for lightningprotection,
structure, incoming services,heating and ventilation).
Refer to detailed analysis
Provide supplementarybonding conductors to exposed
and extraneous metal worksuch as trunking trays, ceilinggrid and raised access floors
Covered in the specificationsonly
Check that removable links fortesting are specified. Covered in the details only
Check that test link location iscoordinated with Architect Refer to detailed analysis
Check for provision ofprotective earth and clean earth
bars at each switchroom andriser location
Refer to detailed analysis
Consider whether dedicatedearths are necessary (for
example telecommunicationsand electronic systems)
Refer to detailed analysis
Check air terminals areconsidered with correct size
and location
Check roof strike terminationnetwork is considered withcorrect conductor size and
location
Check down coductors are
considered with correctconductor size and spacing
Refer to detailed analysis
Table E.8
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Grounding & Lightning Protection
Building IT-02
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not providedSoil resistivity measurement
Data not provided, refer todetailed analysis for
assumptions
Check type of earthing systemto be employed (such as TNS
or TN-C-S)
Check local electricalcompany requirements and
electrical supply arrangements
Check connections to othersystems and determine any
clean earth requirement
Refer to detailed analysis
Check earthing systemcalculations
Data not provided, refer todetailed analysis and
calculations
Check schematic of main earthbar and connections
Data not provided
Check earth termination andspace required
Check electrical bondingdetails and provisions for other
systems such as ceilings,
catering equipment and raisedfloors
Covered in the specificationsonly
Check relevant specificationclauses Refer to detailed analysis
Size of mainearthing/equipotential bonding
conductors Refer to detailed analysis andcalculations
Check consistency betweenelectrical drawings
Refer to detailed analysisCheck consistency betweenspecifications and drawings
Refer to detailed analysis
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
46/292
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Grounding & Lightning Protection
Building IT-02
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Checking arrangement andlocation of earth pits (such ascoordination with other trades(structural, Architectural and
mechanical))
Refer to detailed analysis
Check the use of transientearth clamps for clamping
different earthing systems toprevent transient disturbances
Refer to detailed analysisProvide main equipotential
bonding (required for lightningprotection, structure, incoming
services, heating andventilation).
Refer to detailed analysis
Provide supplementary
bonding conductors to exposedand extraneous metal work
such as trunking trays, ceilinggrid and raised access floors
Covered in the specificationsonly
Check that removable links fortesting are specified. Covered in the details only
Check that test link location iscoordinated with Architect Refer to detailed analysis
Check for provision of
protective earth and clean earthbars at each switchroom and
riser location
Refer to detailed analysis
Consider whether dedicatedearths are necessary (for
example telecommunicationsand electronic systems)
Refer to detailed analysis
Check air terminals areconsidered with correct size
and location
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
47/292
DVR 251011/109 P a g e | 47 /292
Grounding & Lightning Protection
Building IT-02
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Check roof strike terminationnetwork is considered withcorrect conductor size and
location
Check down coductors are
considered with correctconductor size and spacing
Refer to detailed analysis
Table E.9
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Grounding & Lightning Protection
Building IT-03
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Soil resistivity measurement Data not provided, refer todetailed analysis for
assumptionsCheck type of earthing systemto be employed (such as TNS
or TN-C-S)
Check local electricalcompany requirements and
electrical supply arrangements
Check connections to othersystems and determine any
clean earth requirement
Refer to detailed analysis
Check earthing systemcalculations
Data not provided, refer todetailed analysis and
calculations
Check schematic of main earthbar and connections
Data not provided
Check earth termination andspace required
Check electrical bonding
details and provisions for othersystems such as ceilings,
catering equipment and raisedfloors
Covered in the specificationsonly
Check relevant specificationclauses
Refer to detailed analysisSize of main
earthing/equipotential bondingconductors
Refer to detailed analysis andcalculationsCheck consistency between
electrical drawings Refer to detailed analysis
Check consistency betweenspecifications and drawings
Refer to detailed analysisChecking arrangement and
location of earth pits (such as
coordination with other trades(structural, Architectural and
Refer to detailed analysis
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
49/292
DVR 251011/109 P a g e | 49 /292
Grounding & Lightning Protection
Building IT-03
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
mechanical))
Check the use of transientearth clamps for clamping
different earthing systems toprevent transient disturbances
Refer to detailed analysisProvide main equipotential
bonding (required for lightningprotection,
structure, incoming services,heating and ventilation).
Refer to detailed analysis
Provide supplementarybonding conductors to exposed
and extraneous metal worksuch as trunking trays, ceilinggrid and raised access floors
Covered in the specificationsonly
Check that removable links for
testing are specified.
Covered in the details onlyCheck that test link location is
coordinated with Architect Refer to detailed analysisCheck for provision of
protective earth and clean earthbars at each switchroom and
riser location
Refer to detailed analysis
Consider whether dedicatedearths are necessary (for
example telecommunicationsand electronic systems)
Refer to detailed analysis
Check air terminals areconsidered with correct size
and location
Check roof strike terminationnetwork is considered withcorrect conductor size and
location
Check down coductors are
considered with correctconductor size and spacing
Table E.10
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Grounding & Lightning Protection
Building KB-04
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Soil resistivity measurement
Data not provided, refer todetailed analysis for
assumptions
Check type of earthing systemto be employed (such as TNS
or TN-C-S)
Check local electricalcompany requirements and
electrical supply arrangements
Check connections to othersystems and determine any
clean earth requirement
Refer to detailed analysis
Check earthing systemcalculations
Data not provided, refer todetailed analysis and
calculations
Check schematic of main earthbar and connections
Data not provided
Check earth termination andspace required
Check electrical bonding
details and provisions for othersystems such as ceilings,
catering equipment and raisedfloors
Covered in the specificationsonly
Check relevant specificationclauses
Refer to detailed analysisSize of main
earthing/equipotential bondingconductors
Refer to detailed analysis andcalculationsCheck consistency between
electrical drawings Refer to detailed analysisCheck consistency betweenspecifications and drawings Refer to detailed analysisChecking arrangement and
location of earth pits (such as
coordination with other trades(structural, Architectural and
Refer to detailed analysis
7/29/2019 MEP Design Verification Report-Report No. 1-Underground Services-Final- Rev 1
51/292
DVR 251011/109 P a g e | 51 /292
Grounding & Lightning Protection
Building KB-04
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
mechanical))
Check the use of transientearth clamps for clamping
different earthing systems toprevent transient disturbances
Refer to detailed analysis
Provide main equipotentialbonding (required for lightning
protection,structure, incoming services,
heating and ventilation).
Provide supplementarybonding conductors to exposed
and extraneous metal worksuch as trunking trays, ceilinggrid and raised access floors
Covered in the specificationsonlyCheck that removable links for
testing are specified. Covered in the details onlyCheck that test link location is
coordinated with Architect Refer to detailed analysisCheck for provision of
protective earth and clean earthbars at each switchroom and
riser location
Consider whether dedicated
earths are necessary (forexample telecommunications
and electronic systems)
Check air terminals are
considered with correct sizeand location
Check roof strike terminationnetwork is considered withcorrect conductor size and
location
Check down coductors are
considered with correctconductor size and spacing
Refer to detailed analysis
Table E.11
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Grounding & Lightning Protection
Building KB-05
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement
Not provided
Soil resistivity measurement Data not provided, refer todetailed analysis for
assumptionsCheck type of earthing systemto be employed (such as TNS
or TN-C-S)
Check local electricalcompany requirements and
electrical supply arrangements
Check connections to othersystems and determine any
clean earth requirement
Refer to detailed analysis
Check earthing systemcalculations
Data not provided, refer todetailed analysis and
calculationsCheck schematic of main earth
bar and connections
Data not provided
Check earth termination andspace required
Check electrical bondingdetails and provisions for other
systems such as ceilings,catering equipment and raised
floors
Covered in the specificationsonly
Check relevant specificationclauses Refer to detailed analysis
Size of mainearthing/equipotential bonding
conductors Refer to detailed analysis andcalculations
Check consistency betweenelectrical drawings Refer to detailed analysis
Check consistency betweenspecifications and drawings Refer to detailed analysisChecking arrangement and
location of earth pits (such ascoordination with other trades Refer to detailed analysis
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Grounding & Lightning Protection
Building KB-05
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
(structural, Architectural andmechanical))
Check the use of transientearth clamps for clamping
different earthing systems to
prevent transient disturbances
Refer to detailed analysisProvide main equipotential
bonding (required for lightningprotection,
structure, incoming services,heating and ventilation).
Refer to detailed analysis
Provide supplementarybonding conductors to exposed
and extraneous metal worksuch as trunking trays, ceilinggrid and raised access floors
Covered in the specificationsonly
Check that removable links fortesting are specified. Covered in the details onlyCheck that test link location is
coordinated with Architect Refer to detailed analysisCheck for provision of
protective earth and clean earthbars at each switchroom and
riser location
Refer to detailed analysisConsider whether dedicated
earths are necessary (forexample telecommunications
and electronic systems)
Refer to detailed analysis
Check air terminals areconsidered with correct size
and location
Check roof strike terminationnetwork is considered withcorrect conductor size and
location
Refer to detailed analysisCheck down coductors are
considered with correctconductor size and spacing
Table E.12
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Grounding & Lightning Protection
Building KB-06
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Final design report Not providedOwner/Operator requirement Not providedSoil resistivity measurement
Data not provided, refer todetailed analysis for
assumptionsCheck type of earthing systemto be employed (such as TNS
or TN-C-S)
Check local electricalcompany requirements and
electrical supply arrangements
Check connections to othersystems and determine any
clean earth requirement
Refer to detailed analysis
Check earthing systemcalculations
Data not provided, refer todetailed analysis and
calculations
Check schematic of main earthbar and connections
Data not provided
Check earth termination andspace required
Check electrical bonding
details and provisions for othersystems such as ceilings,
catering equipment and raisedfloors
Covered in the specificationsonly
Check relevant specificationclauses
Refer to detailed analysisSize of main
earthing/equipotential bondingconductors
Refer to detailed analysis andcalculationsCheck consistency between
electrical drawings Refer to detailed analysis
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Grounding & Lightning Protection
Building KB-06
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Check consistency betweenspecifications and drawings
Refer to detailed analysisChecking arrangement and
location of earth pits (such as
coordination with other trades(structural, Architectural andmechanical))
Refer to detailed analysis
Check the use of transientearth clamps for clamping
different earthing systems toprevent transient disturbances
Refer to detailed analysis
Provide main equipotentialbonding (required for lightning
protection,structure, incoming services,
heating and ventilation).
Refer to detailed analysis
Provide supplementarybonding conductors to exposed
and extraneous metal worksuch as trunking trays, ceilinggrid and raised access floors
Covered in the specificationsonly
Check that removable links fortesting are specified. Covered in the details only
Check that test link location iscoordinated with Architect Refer to detailed analysis
Check for provision ofprotective earth and clean earthbars at each switchroom and
riser location
Refer to detailed analysis
Consider whether dedicatedearths are necessary (for
example telecommunicationsand electronic systems)
Refer to detailed analysis
Check air terminals areconsidered with correct size
and location
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Grounding & Lightning Protection
Building KB-06
Verification Checklist Summary
Key Design Checks
Checked Compliance
Notes & Remarks
Yes
No
Not
Applicable
Yes
No
Partially
Not
Applicable
Check roof strike terminationnetwork is considered withcorrect conductor size and
location
Check down coductors are
considered with correctconductor size and spacing
Table E.13
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IV. DETAILED ANALYSISA. MECHANICAL
1. Public healthBelow is the detailed analysis related to plumbing drainage system considering the
methodology specified above:
a. BUILDING.(KB01&02)Underground piping, submersible pumps and pits, gray water concrete tank and
related calculations have been reviewed.
I. DESIGN PARAMETERS:The followings table shows the design parameters used in the IFC design documents and
those extracted through the design review process
Table M.14 : Design parameters
ItemIFC Design Required Parameters
Value Reference Value Reference
Parking drain Fixtures Units 21 UPC 8 UPC2
AHU & FCU Fixtures Units 2 UPC 2 UPC3
Floor Drain Fixtures Units 2 UPC 2 UPC3
Slope of Drainage piping
(100 & 150 mm Diameters)Not
Indicated- 1% IPC4
Rainfall intensity 758 mm/hr UPC 50 mm/hr UPC5
WC Flush flow rateNot
Indicated-
6.1 liter(1.6
gallon/flush)UPC6
Number of persons per m2Not
Indicated- 14
Plumbing EngineeringServicing Design
Guide- The Institute ofPlumbing 20027
Water consumption ratio per
shower
NotIndicated
-5%
Water consumption ratio pertoilet flushing
NotIndicated
- 32%
Water consumption ratio per
Laundry
NotIndicated
-20%
Water consumption ratio per
kitchen
NotIndicated
-15%
Water consumption ratio per
basin
NotIndicated
-9%
1. IFC design indicates parking floor drain to have 2 FU. However, since pipe connection is 4 UPCcalls for 8 FU to be used in calculations.
2. Refer to Appendix A, PageA.33. Refer to Appendix A, PageA.24. Refer to appendix A, Page A.11
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Table M.14 : Design parameters
ItemIFC Design Required Parameters
Value Reference Value Reference5. Refer to Appendix A, Page A.56. Refer to Appendix A, Page A.17. Refer to Appendix A, Page A.48. Rainfall intensity used by the designer varies for different buildings. It is recommended to use 50
mm/hr
II. SUMP PITS & SUBMERSIBLE PUMPS (DSP-1):1. Submersible pump-1 (DSP-1) has been reviewed as an example for others in
the same building. Results of this review indicate that same issues are found
in other areas within the same building
2. IFC Design plans(Drainage), IFC calculations, IFC risers, IFC structuraldrawings and sections have been reviewed, the following table shows the
results:
Table M.15 ; DSP-1 Design data as per IFC Design Drawings & Calculations Output from design
review
IFC Mechanical Drawings IFC Calculations IFC Structural DrawingsDesign Review
Output
Plan Riser Plan Sections
Drawingsreference
3
rd
BasementMaster FloorPlumbing
Plan(P-101)
GroundFloor Master
PlumbingPlan
(P-116)
SanitarySewerSystemRiser
Diagram (P-401)
CalculationsJ09-07800
MasterFound-
Ation Plan(S101)
Sections &Details
( S-201)N/A
FoundationType Column Base (Footing)
Location3rd BasementGrids (A&5)
N/A -
3rdBasement
Grids(A&5)
- N/A
Encasementfor DrainagePipe Under
ground
Not shown - - Shown ShownShould be indicated
on Plumbingdrawings
Pump Data
2 pumpsFlow = 2.6
L/s each
Head = 1.2Bar
Notprovided
Not available - -
2 pumps, flow = 2.2L/s each
Head = 2.0 Bar
IFC Pumpsaccepted
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Table M.15 ; DSP-1 Design data as per IFC Design Drawings & Calculations Output from design
review
IFC Mechanical Drawings IFC Calculations IFC Structural DrawingsDesign Review
Output
Plan Riser Plan Sections
Pit Size1.0 x 1.0x1.6
m3Not
providedNot available
1.0 m x 1.0m
Depth isnot
available
1.8 x 1.8 x2.4 m3
1.3 x 1.3 x 2.0 m3
Pumpdischargepipe size(ForcedFlow)
100 mmNot
providedNot provided 100 mm
Sump pit Service
Mechanical Drawings Calculations StructuralDesign Review
Output
Plan Riser Plan Sections
Parkingdrains Included Included Not Included N/A N/A
Should be indicatedon riser diagram
and considered incalculations
Elevator PitNot Included
NotIncluded
Not Included N/A N/AShould be includedin plans, riser and
calculations
Condensatedrain Not Included
NotIncluded
Not Included N/A N/AShould be shownon plans, riser and
calculationsRed: Not Acceptable, Orange: Partially, Green: Acceptable
3. Description of above findings:a. Pump Flow rate:
i. In the same discipline there is discrepancy in the Tag numbersbetween risers, calculations and plans. Same mismatching found with
other disciplines like structural
ii. It is required to drain the elevator pit with a separate pump set or witha floor drain connected to sump pit.
iii. Flow of condensate drain from FCUs & AHUs is not considered indesign calculations and not shown on plans or risers
4. Pump Head:Calculations are not included in IFC design for pump head
5. Pit Size:a. Modified calculations based on the above will change pit sizeb. Duplex Pump sizes are not taken into considerationc. Effective volume is not properly calculatedd. Pit depth is less than required (Waste pipe invert level connected to
sump pit is not taken into consideration)
e. Elevator pit is not taken into consideration in sizing the pit depth
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f. No sand trap is provided at waste pipe connected to sump pit6. Sample calculations:-Below is a sample calculation for DSP-1
a. Flow Rate calculations:Consists of all waste water connected into sump pit-1 including:
i. Parking drainsii. Condensate drains
iii. Floor drainsThe following table shows flow of connected fixtures to DSP-1 done by design reviewer
(IFC Design does not contain similar calculations):
Table M.16 : Connected Fixtures to DSP-1
D.F.U.VNumberFixture
TotalUnit
264810Parking Drains
1226AHU & FCU1226Floor Drain
104--Total Fixtures units70 GPM(4.4 L/s)
--Total Fixtures Flow Rate*
75%Diversity (All systems shall not work together in any case)
52.5 GPM
(3.3 L/s)
Total Flow
Reference for converting D.F.U.V to flow rate is NBS Monograph, Fig 3-3 NBS Monograph 31, Design-flow curves for plumbing-drainage systems. Refer to Appendix A, Page A.15
b. Pump head calculations done by design reviewer (IFC design does notcontain similar calculations):
The below table shows pump head calculations for DSP-1
Table M.17 : Pump Head Calculations
StaticHead