In my (1980's) consumer unit, there are red labelled fuses for the mains sockets, white ones for the lighting, and a blue one that I haven't managed to trace anywhere. Is there some kind of standard or convention that might suggest where it goes to?
These are wylex rewireable fuse carriers which can be rewired with any grade of fusewire, so don't assume anything from the colour of the dot.
Blue is usually 15amp (*), and the Wylex carriers are also marked 5amp, 15amp or 30amp but you do not know if a previous owner has used the wrong grade of fusewire or even a length of non-fusewire !!! :-(. The colour code and printed amperage is no proof of the type of fusewire inside it.
You can still buy fusewire in a pack of 5,15 and 30 amp in Robert Dyas. I would suggest that you buy one (only £2.99) and carefully pull out the white and blue carriers and make a visual comparison of what is in them with what you have in the new pack. They are quite stiff to remove and re-insert.
I assume this is not a landlords property because that type of fuse arrangement is no longer allowed and apart from which it sounds like this property needs an upgrade to its electrical system anyway.
(*) Almost certainly for the immersion heater which is
An RCD doesn't need adding to pass an EICR, unless some other work has been done which requires bringing protection up to date. So by themselves BS3063 fuses aren't an immediate fail, just an opportunity for improvement, some sparkies might not phrase it that way though ...
Well, I cannot see that, but if you have ever had economy 7 or maybe an immersion heater which uses a bit more than 13 amps, then its probably one of those. Its the rating, I'm sure somebody knows the colour codes off by heart by now.Cookers also can have different ones, depending on the way the house is wired I have noticed in the past, but now of course it would be more handy to me to have a button or lever with a tactile symbol on it instead. Brian
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