this post was submitted on 17 Aug 2024
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No Stupid Questions
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No such thing. Ask away!
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Here's how to find out: use a small flat screwdriver to pull the central white thing out. It's a cradle for a cylindrical fuse.
If there's no fuse, it's for something that's been removed and they couldn't be bothered to remove the fuse box and its wiring.
If there's a fuse, you have disconnected the power by pulling the fuse out of the circuit. Check if something electrical stops working - alarm, shower, cooker, immersion heater, whatever's on the other side of the wall, loft lights?
Maybe the fuse is there but has already fused, in which case you may want to find or purchase a replacement of the same rating, and find out what electrical thing started working! The fuse rating is written in faint text on the side of the cylinder. If the replace with a higher rated fuse, you allow things to happen in the device that someone thought shouldn't happen and could blow the fuse to prevent damage or injury. If you replace with a lower rated fuse you risk it going in normal use, i.e. too frequently.
Make sure the screwdriver has a plastic or rubber grip lmao
Agreed. Always best to use an insulated screwdriver with anything near live electricity.
In this case, if the fusebox is manufactured correctly, there should be very little risk indeed, but you can't be sure that some unscrupulous corporation made something that disintegrates or weirdly exposes live connections where it absolutely needn't. It doesn't look super well made because the little tray for the fuse should be flush with the front of the plate and not recessed like that!
I'd probably turn off the power first especially if I didn't already know what was behind it and whether it is properly grounded.