Attachment 6 - Cable Schedule.xlsx

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Insulation Resistance Testing Services
Solicitation number
W911WN26QA564
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This is a Cable Schedule attachment that specifies the insulation resistance testing requirements for electrical cables at four U.S. Army Corps of Engineers facilities: Hildebrand, Morgantown, Opekiska, and Point Marion Locks and Dams in Pennsylvania and West Virginia.

The document provides detailed testing procedures requiring contractors to inspect physical and mechanical conditions of motors and cables, de-energize all circuits, and perform one-minute insulation-resistance tests with readings recorded at 30 seconds and one minute. Test voltage specifications are 500 volts DC for 300-volt rated cables and 1000 volts DC for 600-volt rated cables. Testing must be conducted on phase-to-phase conductors (A-phase to B-phase, B-phase to C-phase, C-phase to A-phase), phase-to-ground connections, and phase-to-neutral connections where applicable, with results verified against NETA Table 100.1. The schedule lists approximately 50+ individual cables across the four facilities, including their source and destination points, conductor configurations (ranging from single to three-conductor cables), wire gauges (from 2 to 6 MCM/AWG), voltage ratings (ranging from 115/230V to 600V), and reference drawing page numbers. Cables include service bridge feeders, main interlocks, lighting transformers, distribution panels, and dam feeders. References include NFPA 70 (National Electric Code), NFPA 70B (Electrical Equipment Maintenance), OSHA 29 CFR 1910, and ANSI/NETA ATS-2025 standards.

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File Type Posted
RFQ - Insulation Resistance Testing Services - Signed.pdf PDF
Attachment 4 -W911WN26QA564 - Photographs.pdf PDF
Attachment 5 - W911WN26QA564 - Wage Determination.pdf PDF
Attachment 3 - W911WN26QA564 - Reference Drawings.pdf PDF
Attachment 4 - W911WN26QA564 - Photographs.pdf PDF
Attachment 2 - W911WN26QA564 - Statement of Work (SOW).pdf PDF
Attachment 1 - W911WN26QA564 - Electrical Services BPA Statement of Work - Master Agreement.pdf PDF

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Testing Procedure

Inspect physical and mechanical condition of the motor and cable.
Remove power and OPEN disconnects or breakers for all circuit to be insulation tested.
All test are to be perform for 1 min. However, readings are to be recorded at 30 sec and 1 min.
Steps below are based from 2‐lead insulation tester, follow insulation tester's manufacture procedure when installing leads. Ensure that leads are inserted for insulation testing.
When placing meter leads on phase wire(s), unused phase wires should be grounded to avoid stray voltages.
Perform insulation-resistance test by applying test voltage on each conductor with respect to ground and adjacent conductors. Applied potential shall be 500 volts dc for 300-volt rated cable and 1000 volts dc for 600-volt rated cable.
1Phase conductor to adjacent Phase conductor
A-phase & B-phase
B-phase & C-phase
C-phase & A-phase
2Phase to Ground Bus
A-phase & ground
B-phase & ground
C-phase & ground
3Phase to Neutral Bus (if applicable)
A-phase & neutral
B-ph & neutral
C-ph & neutral
Test voltage shall be applied to each conductor for one minute.
Verify results in accordance with NETA Table 100.1
Refer to following references:
NFPA 70, National Electric Code
NFPA 70B, Recommended Practice for Electrical Equipment Maintenance
OSHA 29 CFR 1910, Occupational Safety and Health Standards for General Industr
ANSI/NETA ATS-2025

Hildebrand

CABLE NOFROMTOFORNO CONDMCM OR AWGCIRCUIT VPAGE
EDSwitchboard Panel No 5Emergency DamPower Emergency Dam3/C6600V29/1.2

29/12 DF1 Switchboard Panel No 5 Water Tight Safety Switch No 1 Service Bridge Feeder No 1 3/C 2 600V 29/1.2 29/12 DF2 Switchboard Panel No 5 Water Tight Safety Switch No 2 Service Bridge Feeder No 2 3/C 2 600V 29/1.2 29/12 CABLE 5 Main Interlock MCC Interlock 3-1/C 3/0 600V 29/1.2 29/12 CABLE 6 Lighting Panel LC1 Lighting Panel LC2 Lighting Panel LC2 Power Feed 3/C 600V 29/9.2 29/12 TF1 Switchboard Panel No 5 Lighting Transformer No 1 Lighting Transformer No 1 Feeder 2/1C 8 600V 29/1.2 29/12 LT1 Lighting Transformer No 1 Switchboard Panel No 5 Transformer Transfer Switch 3/1/C 4 600V 29/1.2 29/12 TF2 Switchboard Panel No 5 Lighting Transformer No 1 Lighting Transformer No 2 Feeder 2/1C 8 600V 29/1.2 29/12 LT2 Lighting Transformer No 2 Switchboard Panel No 5 Transformer Transfer Switch 3/1/C 4 600V 29/1.2 29/12 CABLE 10 LTG. TR Tran Switch Lighting Panel LC1 Lighting Panel LC1 Panel Power 3/C 600V 29/1.2 29/12

IDF1

IDF1.1

IDF1.2

IDF1.3

IDF1.4Water Tight Safety Switch No 1Controller CabinetGate Hoist3-1/C2600V56/1.1
IDF2

IDF2.1

IDF2.2

IDF2.3

IDF2.4 Water Tight Safety Switch No 2 Controller Cabinet Gate Hoist 3-1/C 2 600V 56/1.1

Morgantown

CABLE NOFROMTOFORNO CONDMCM OR AWGCIRCUIT VPAGE
DF1SwitchboardItem 32, Pier 1Service Bridge Feeder No 13/C2460V29/1.3

29/2A DF2 Switchboard Item 32, Pier 1 Service Bridge Feeder No 2 3/C 2 460V 29/1.3 29/2A

DF3 & DF4

DF3.1 & DF4.1

DF3.2 & DF4.2 Item 32, Pier 1 Item 27, Pier 7 Dam Feeder 3/C 2 460V 56/1.1 56/4 56/9

CABLE 5Main InterlockMCCInterlock3-1/C2/0460V29/1.3
CABLE 7Secondary Distribution PanelLPA Panel (Room A2)Panel LPA Power Feed3/C4-#2/0
1-#4G120/208Y29/12A.1

29/13A.1

CABLE 8Secondary Distribution PanelLPB Panel (Boiler Room)Panel LPB Power Feed3/C4-#2/0
1-#4G120/208Y29/12A.1

29/13A.1

CABLE 9Secondary Distribution PanelLPC Panel (Storage Area)Panel LPC Power Feed3/C4-#2
1-#4G120/208Y29/12A.1

29/13A.1

TF1SwitchboardLighting TransformerTransformer Feeder2/1C4460V29/1.3
LT1Lighting Transformer No 1Switchboard Panel No 5Transformer Transfer Switch3/1/C4600V29/1.3
TF2Tainter Gate Controller Pier 4Lighting Transformer Pier 4Spillway Lighting2&4 - 1/C

10 460V 56/1.1 56/3.1

SL1Lighting TransformerContactor Cabinet Pier 4Spillway Lighting3-1/C10115/230V56/3.1
PRISwitchboardJB108Power Receptacle3/C8460V29/1.3

29/2A

Opekiska

CABLE NOFROMTOFORNO CONDMCM OR AWGCIRCUIT VPAGE
PRF1Switchboard Section 5Splice PRF1-S1, Sta. 0+92.5B, R.W. GalleryPower Recepticles - R.W.3/C6440V29/7
CABLE 160A, 600V D.T. Transfer SwitchLine Side 30KVA TransformerLine Side 30KVA Transformer Feeding LP-3 etc.3/C6440V56/3.1
CABLE 2Load Side 30KVA TransformerLP-3 etc.Load Side 30KVA Transformer Feeding LP-3 etc.3/C2120/208V56/3.1
CABLE 3LP-3 Slot 1 SpliceLP-1LP-1 Power Feed3/C2120/208V56/3.1
CABLE 4LP-3 Slot 1 SpliceLP-2LP-2 Power Feed3/C2120/208V56/3.1
CABLE 5Main InterlockMCCInterlock3-1/C3/0440V29/1

29/2 29/2.1

CABLE 6LP-3 Slot 1LP-3 Slot 1 Splice100A power distribution to LP1, LP2, LP4, LP53/C2120/208V56/3.1
CABLE 7LP-3 Slot 1 SpliceLP-4LP-4 Power Feed3/C2120/208V56/3.1
CABLE 8LP-3 Slot 1 SpliceLP-5LP-5 Power Feed4-S/C2120/208V56/3.1
LPF1Switchboard Section 2Ltg. Transformer, Oper. Bldg.Main Lighting Service4-1c2120/208V29/1

29/3 SBF1 Switchboard Section 6 Wireway, L.W. Pier Bridge & Pier Feeder 3c 3/0 440V 29/1 29/7 29/15.1 56/1 56/2.1

SBF1-A

SBF1-A.1

SBF1-A.2Wireway, L.W. PierD.T. Switch, L.W. PierBridge & Pier Feeder3c3/0440V29/7
SBF2Switchboard Section 5Wireway, L.W. PierBridge & Pier Feeder3c3/0440V29/1

29/7 29/15.1

SBF2-A

SBF2-A.1

SBF2-A.2Wireway, L.W. PierD.T. Switch, L.W. PierBridge & Pier Feeder3c3/0440V29/7
LPFA30KVA Tansformer Load Side SplicePanel LPAPanel LPA Feeder4-1c
Probably6
Probably120/208V29/1
LPFB30KVA Tansformer Load Side SplicePanel LPBPanel LPB Feeder4-1c
Probably6
Probably120/208V29/1

Point Marion

CABLE NOFROMTOFORNO CONDMCM OR AWGCIRCUIT VPAGE
P15LW. OPERATIONS BLDG MCC2PIER *1 (DAM)DAM FEEDER *14/C1/048029/1

56/6

P16 LW. OPERATIONS BLDG MCC2 PIER *1 (DAM) DAM FEEDER *2 4/C 1/0 480 29/1

56/6

DF-1

DF-1.1

DF-1.2

DF-1.3

DF-1.4

DF-1.5NORMAL FEEDERHOIST CONTROL PANELDAM POWER3/C#2
#10GRD48056/6
DF-2

DF-2.1

DF-2.2

DF-2.3

DF-2.4

DF-2.5EMERGENCY FEEDERHOIST CONTROL PANELDAM POWER3/C#2
#10GRD48056/6

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