I need help understanding an old fuse box
jspears
17 years ago
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jspears
17 years agoRelated Discussions
old fuse box as subpanel
Comments (7)The few things I'd be using that aren't universal anyway are mostly marked 50/60 hz, when I moved from Canada to NZ then Australia back in the 70's we had some issues with a couple of electric motors, but most were fine. I realise there's technically no 'neutral' in NA 240, but I'm pretty sure it would be fine. My Dad brought a Sears 240v Radial arm saw from Canada back to NZ, he said when it was new the onboard breaker tripped a bit (maybe back in the 70s it was rated 220v?) but when it got a bit older it was fine. As for phase, I'm not sure what you mean. It's all single phase, just like here in Canada. My plan would be to either use a 240v plug like we have here, or I could add an Australian one (I kept a few outlets) which I suppose technically might not be kosher since it won't have the CSA rating but they are, nevertheless, rated 250v or higher. It is an different system there, they generally don't use junction boxes there (unless they're surface mount, or there's an inline join) because, for one, outside walls didn't used to be insulated, also, instead of wire nuts, they use an insulated brass joiner with a grubscrew. I kind of liked that system, harder to mess up and perhaps a little more reliable, but slower to fit I suppose....See MoreOld fashioned fuse box and new heater...
Comments (8)As others have pointed out, the best fix is a rewiring job. You should definitely report the situation to the landlord. If he/she does nothing, there are a few things you can try. In many older houses, people kept adding on to one circuit. This was particularly true in the case of knob & tube wiring. In many cases, the add-ons were for items of low power consumption items such as lamps, electric clocks, radios, etc., and posed little or no overload threat. Then along came microwaves, washing machines, countertop appliances, etc., which did pose an overload problem. To get to the point, you MIGHT have one or two circuits that are overloaded, and sone circuits that are not. Perhaps one of those screw-in fuses is for a single receptacle for a window air conditioner. Since you wouldn't be using an A/C at the same time, perhaps you could plug in the heater there. As pharkus wrote, immediately replace the top 4 screw-in fuses with 15A fuses. The circuits MAY be good for 20A, but the wiring size would have to be verified. It is highly likely there is NO WAY there should be 30A fuses in the top 4. Once you replace all the fuses, including the 60A mains, remove the 15A fuses, one at a time, and see which lights and receptacles are not working. Keep a record of what is on each fuse. Maybe then you can determine if there is an underutilized circuit on which to use the heater. At any rate, you are probably pushing the limits of this 60 amp service, especially with an electric water heater and another electric 240-volt appliance (if there is one. That is what the other cartridge fuse holder is for, possibly an electric range or dryer.) Monitor closely. If the landlord does not address the situation, and you get the burning smell again, call the fire department. Seriously....See MoreOld Fuse Box
Comments (11)Long distance diagnosis is impossible, especially without photos, but I'll cite a similar experience I'm familiar with. It happened about 50 years ago. This was a plug (Edison base) fuse making a distinct humming and buzzing noise for weeks or months. Maybe the fuse was a little loose, or maybe the wire connection to the fuseholder's terminal wasn't solid.. in any case, the contact was poor somewhere. The connection was actually arcing. This eroded the contacts further, making things worse. Eventually the intense heat that resulted actually melted the fuseholder. Fortunately, the arcing and molten metal were contained by the fusebox, a large, ancient, very solid closed-front box. If they'd reached the cardboard boxes stored nearby, the house would have probably gone up in flames. In your case, there's a good chance that the entire panel will need to be replaced. Unless you're thoroughly experienced with electrical work, including installing main panels, don't try to fix this yourself. And for goodness sake, quit jiggling that fuse! Open the main switch to shut off all power in the house. In an old fusebox, that could be a lever switch, or it may require opening the door, pulling out a cartridge fuse holder marked MAIN, and reinserting it upside down, so that the word OFF is right side up. If you can't figure out how to open the main, call the power company. They'll know what to do, and can even pull the meter if necessary. Then use only battery powered lights and appliances until you can get this checked out by a licensed pro....See More60 amp fuse box service line from meter to fuse box
Comments (4)It's illegal to do what you propose in most cases. DIY work is limited to the owner working on his own single-family detached house. Further, you have no clue what you are doing. Electrical service is not the same as plumbing. Electrical wires aren't designed to just be willy nilly yanked on. It's not surprising it broke and likely has nothing to do with "tree roots." If you broke one of the hot conductors, you may have also broken something less detectable (like the grounded conductor). Seriously, get professional help....See Morebrickeyee
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