UFC 3-535-01
17 November 2005
Table 14-8. Checklist for Vault (Cont., 3 of 4)
Grounding
____ 1. Are the tops of ground rods at the required depth below grade?
____ 2. Are all the ground rods serving the vault tied together by the use of bare copper
wire?
____ 3. Is the grounding wire size in accordance with the plans and/or the NEC?
____ 4. Is the grounding wire protected in accordance with plans and/or the NEC?
____ 5. Are all metallic pull boxes, raceways, cabinets, cable armor, transformer enclosures,
and cages properly grounded, and are the grounding wires connected to the metal
surfaces with proper lugs and connectors? [Metal surface must be cleaned of paint
and grease where the ground connections are made.]
____ 6. Is the power neutral grounded only at the power service entrance?
____ 7. Are the neutrals of the secondary distribution systems properly grounded?
Tests
____ 1. Does the cable of each series and parallel lighting circuit meet the minimum
insulation resistance requirements?
____ 2. Is the supply voltage to regulators within acceptable limits?
____ 3. Are the output current values of each regulator at each intensity step within
allowable limits?
____ 4. Is the open circuit protective device of each regulator functioning properly?
____ 5. Has each control been operated the required number of times and are they
functioning properly, at each control location?
____ 6. Has each lighting circuit been operated at each brightness step for the required
number of hours and are they functioning properly?
____ 7. Is the ground resistance equal or less than the specified value? [Measure with vault
neutral
disconnected from power company's neutral.]
____ 8. Is photocell, if required, operating properly?
____ 9. Is the entire lighting system functioning in accordance with the approved plan of
operation?
At Final Inspection
____ 1. Does new underground cable meet the minimum insulation resistance
requirements?
____ 2. Are high voltage and low voltage cables properly separated in handholes and
manholes, and in separate duct, in accordance with the plans and specifications?
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