vendredi 29 mai 2015

0

breaker replacement/tightening

Should the main breaker be closed when replacing a circuit breaker?

Is turning off the breaker your replacing and having the new one turned off when snapping to the bus bar sufficient?

How about tightening the screws on breakers, is it safe to do so with only the breakers you are tightening turned off?
breaker replacement/tightening

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