Is there any reason why you don't use a clamp meter for this? It just seems a bit of an odd way of going about it.
Why so?
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7 years ago
Chinese fuses
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7 years ago
THanks, Phil, I'll check it out. I actually cracked one of these 5A fuses apart today. Good news is it was at least sand-filled. Potential bad news, though, is the wire inside was much thicker than I'd expected to find; certainly a *lot* thicker than some 5A fuse wire off an old Woolworths bobbin I had lying around. I can micrometer them up for comparison purposes, but if they're made of dissimilar metals it's not really going to prove anything I guess. :(
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7 years ago
There are some *known* fake Bussman fuses out there which are really dangerous. There was an item on them in the 'Fake Britain' BBC show recently.
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7 years ago
Well how would you do it? I don't know the breaking capacity of mains plug fuses, but domestic CU fuses & MCBs are 1kA - 6kA, not exactly a trivial thing to set up on the workbench.
NT
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7 years ago
** Both examples were labelled "Bussmann".
Have a good look at the 13A fuse in the first test.
Chinese fakers have no regard for brand names or anything else.
.... Phil