Re: overheating fuse problem

Not too much off-topic, I hope...

> >Here's my problem. I have a quadruplex. For each of the three >appartments we don't occupy, we have metal box containing a switch and >two 100A/250V fuses. The output of this box goes to the breaker box >located within the appartment. > >The tenant came to me and complained about a problem. The most >consuming elements weren't working (washing machine, dryer, microwave >oven, etc...).. the lights were on, but not at their full >capacity. After some research, I found out that one of the two above >mentioned fuses of his appartment was dead. It looked like it >had overheated. I therefore bought a new one and replaced it. An hour >or two after, I went back to look at it and it was heating, much more >than the fuses for the other appartments. > >To find out if the problem was in my metal box or in my tenant's >electrical circuits, I went over and shut down every single breaker he >had (don't worry, he's gone for the weekend! ;-). My metal box was >back at normal temperature (cold) after a few hours. > >My questions: > >1- Why two 100A fuses in parallel instead of one 200A? > >2- What could be the problem? I would doubt it to be related to my >tenant's electrical consumption, since his breaker would pop before my >fuses would break, right? It's been this way since our 4plex was built >20 years ago and weve never had this kind of problem. > >Many thanks, > > > >Patrick M.
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Fuse box problem
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