I would just hook it up following the NEC and manufacturer’s instructions and not worry about it.
Help 200 amp service
- Thread starter new-master
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I would just hook it up following the NEC and manufacturer’s instructions and not worry about it.
The copper oxide is a conductor the aluminum oxide is an insulator.
NEC Section 110.11 "Deteriorating Agents" calls attention to gases or agents that have a "deteriorating effect" on conductors such as galvanic corrosion and non-conductive surface oxide film that lead to thermal runaway.
NEC Section 110.11 "Deteriorating Agents" calls attention to gases or agents that have a "deteriorating effect" on conductors such as galvanic corrosion and non-conductive surface oxide film that lead to thermal runaway.
AC\DC
Senior Member
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- Florence,Oregon,Lane
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- EC
Breaker could have been fine if heat from that lug did not generate enough to simulating overcurrent. Breaker monitors out going current/heat not incoming
Frank DuVal
Senior Member
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- Electrical Contractor, Electrical Engineer
The bus just visible above the main breaker looks fine therefore loose connection on the incoming terminal of the breaker is the heating problem. 
And yes, jumper is there. C-H uses the copper finger from that aluminum strap to the "neutral" bar for bonding. If a sub panel, then one just leaves out that finger.
And yes, jumper is there. C-H uses the copper finger from that aluminum strap to the "neutral" bar for bonding. If a sub panel, then one just leaves out that finger.
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