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If you have performed an arc flash evaluation on an MCC panel, should the local disconnect also be arc flash evaluated. Or can it be assumed that there is no live energy to the local disconnect if the MCC panel has been opened and locked out?

Question asked by Ralph Thomas on Mar 21, 2017
Latest reply on Mar 27, 2017 by David H Austin

We are having questions about if the MCC has had an arc flash evaluation, should the local disconnect also have an arc flash evaluation? Or can it be assumed that is the power ahs been shut off at the MCC, then there is no power going to the local disconnect?

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