Termyn8or -> RE: Old Houses and Electricity (11/21/2010 1:39:49 AM)
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No, the fuses or breakers specifically protect the wires in the house. However when the wires are old, it is not so surefire. If it's a matter of resetting a breaker usually everything is fine. When you have to replace a fuse, things are not up to snuff. Fuses are out, only very special circumstances call for them, and a house is not one of them. So how many amps is the breaker that is tripping ? If it's tripping a 15, no sweat. It also depends on what is running off of it. For example if you have an apartment running off one 20 amp, it is going to trip before noon. A microwave runs 8-12 amps, a toaster about 7, add a few lights and a refrigerator and it will add up to more than 15 which will cause a 15 amp breaker to trip. I've seen all kinds of shit people did. Though I haven't had it personally, some build a room addition to a house, and just follow code, which might allow the whole new room to run on one or two 20 amp breakers. But then they want separate heat and AC, a fridge and stove, an outside outlet for an arc welder and then it is just too much. Whatever the situation, your first instinct is correct, if a breaker keeps tripping it will go bad. A breaker can sit there for 100 years, but really, if it trips ahout 30 times it should be replaced as it is not designed for that. However it will not burn the house down nor will it damage the witring, except if it is made by Federal Pacific. When breakers wear out, they are designed so that they don't pass more current than allowed, less is really it. You could have a 15 amp start tripping at 14, 13, 12 and less and less every time. That is how they are designed. Then it is a big pain in the ........ To my knowledge, only Federal Pacifics ever had a problem passing MORE current than called for, which is dangerous. Design is quite a bit more carefully considrred now. The problem is still, if it needs to be fixed, finding someone who knows what they are doing. Also, if it didn't trip before and it does now, and nothing else has changed, I would suspect the breaker itself. Something that works and then stops is not always at fault. But sometimes it is. I wouold change the breaker first, if the problem persists then you have to go farther. T
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