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Shaun @ Tru6 Shaun @ Tru6 is online now
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Join Date: Dec 2001
Location: Cambridge, MA
Posts: 44,934
Quote:
Originally Posted by 70SATMan View Post
Yep. Could be corrosion between the plates has created high resistance causing the potential to arc across the lower resistance conductor to the plate which is through the screw.

Shaun, is this box only acting as your main disconnect which then routes three phase to another panel???? If so, does your other panel have another three phase main breaker??

If this is your set up I'd think about having that box fully replaced with a switch blade disconnect with in line phase fuses instead of just replacing that breaker.

There is more corrosion in there than should be...


The entire box is for upstairs (me) and downstairs, the auto parts runner. We of course have separate breakers and meters.

The way it seems to work is the line from the telephone pole goes to this box outside and then this goes to my inside breakers.

I wouldn't mind asking NSTAR to turn off the e- to put anything in, whether a new breaker or a new unit as you describe. If I can install a new breaker while hot, great. NSTAR has a 2 week wait and I need this next week, so there's that.

The face of the building, and this box, is against the constant pattern of weather. it's annoying actually. wind blows against it non-stop which means every single bit of trash 1/2 mile in front ends up on my step. The box cover is a poor excuse for protection with many of the screws not in so that weather will always seep into the cavity.
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Old 01-20-2014, 01:13 PM
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