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Thursday, March 30, 2023
Question:
Hi Charlie. Section 210.63(B)(2) requires a receptacle installed with indoor electrical equipment and that the receptacle cannot be connected to the load side of the equipment's disconnecting means.
The Handbook indicates that this is for portable testing equipment, and so that the test equipment may be used when the equipment is de-energized.
My question is: how is this supposed to work, exactly, especially at service entrances? If the service disconnect is open, where is power supposed to come from for the receptacle?
Similarly, if I'm locating an electrical room at the opposite end of the building from the service entrance, are we required to run a single branch circuit along with the electrical room's main feeders for test equipment? Thanks Steven Bunker
A
Answer:
Steven, thanks for participating in the Code Question of the Day. To answer the first question: Section 210.63(B)(2) does not apply to Service Equipment.
Regarding the second question, the receptacle required by 210.63(B)(2) could be connected to any available 20A, 125-volt, 1-phase power supply, not connected to the load side of the disconnecting means of the equipment the receptacle is intended to service. There are no exceptions in Section 210.63(B)(2) for limited available power sources, or distances.