I have an old house where the old fuse panel has been run over to a new service panel with breakers. The old panel has 4 fuses and they are now on their own breaker. Lately this breaker that controls the old fuse panel has been tripping the breaker. I flip the breaker off and then on and all is usually back to normal. The other night it was trippijng it and I would have to wait a couple of minutes before it would reset. The weird thing is that it does not throw everything off that are on these old fuses. It trips the breaker and some of the power on some of these fuses still work until I throw the breaker to reset it. Everthing has been fine like this for 20 years or so with no problems. I have not recently added any new curcuits or additional appliances. Last summer it was doing this then & I cleaned the connections at the breaker and tightened them up & it stopped.
Shouldn't it throw everything that is on these fuses off ? I plan to pull out the old fuses and look for corrosion & blackening in the fuses for any tell tale signs. Should I just put in new fuses even if they appear ok and make sure all the connections look clean & tight ? Any other ideas ?
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