2. Assume you are an electrical apprentice. The electrical foreman on the job tells youto connect some equipment grounding conductors to the ground bus that runs alongthe front bottom of a dead-front switchboard. The system is 480Y/277-volt solidlygrounded wye. The building is still under construction, and a number of other tradesare working in the building. The switchboard has already been energized, and it istotally enclosed except for two access covers near the front bottom where the groundbus runs. The ground bus already has the proper number of and size of lugs for theequipment grounding conductors. You ask permission to turn off the main power sothat you can work on connecting the equipment grounding conductors to the groundbus without having to worry about accidentally touching the phase buses with yourhands or with a screwdriver or wrench. The foreman says, “No.” What would you do?
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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