knoppdude
Senior Member
- Location
- Sacramento,ca
A friend of mine just experienced an arc blast when re-energizing a 480 volt main for a decrepit MCC. It exploded, but he did not get burned because he was wearing his 15 cal/sq cm suit. These things are life savers, and he said he would have been burned without it. I had opened and closed this same breaker a month ago, and was wearing a 40 cal suit. The fact is, it can happen if conditions are such that an uncontrolled arc will occur. If I can get pictures of this MCC abomination, I will try to post them. The violations are many.