Our Voltimum Experts answer your questions on a daily basis in our Technical Expertise area. This Question of the Day, concerning a large electrical installation, and PSCC and PFC tests, is answered by the ECA:
The problem I have is where else do I carry out the PSCC and PFC, and where would I record the results?
Am I right in saying that the tests in question should only be carried out again at the distribution boards, or would I need to find the values at the AHUs also?
If the main LV panel in question is thought of as a distribution board, surely the circuits feeding the AHUs will be similar to those from a distribution board?
Answer: The PSCC should be recorded at every switchgear/distribution location and recorded on the schedule of test results. The PFC is normally checked at the main intake, but can also be checked at MCC and at main plant locations, and recorded on respective documentation.
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