1. Electric utility installations and equipment under the exclusive control of the utility do not have to conform to the National Electrical Code. However, they do have to conform to the .
1.
not have to conform to the National Electrical Code. However, they do have to conform to the .
2. Assume you are an electrical apprentice. The electrical foreman on the job tells you
to connect some equipment grounding conductors to the ground bus that runs along
the front bottom of a dead-front switchboard. The system is 480Y/277-volt solidly
grounded wye. The building is still under construction, and a number of other trades
are working in the building. The switchboard has already been energized, and it is
totally enclosed except for two access covers near the front bottom where the ground
bus runs. The ground bus already has the proper number of and size of lugs for the
equipment grounding conductors. You ask permission to turn off the main power so
that you can work on connecting the equipment grounding conductors to the ground
bus without having to worry about accidentally touching the phase buses with your
hands or with a screwdriver or wrench. The foreman says, “No.” What would you do?
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