B
Bridgemegger
OK, I’m sort of qualified – time served on the 14[SUP]th[/SUP] edition, then left the trade in 1973 – kept my hand in for a few years….. I’ve recently moved into a house which has a lash up of an electrical installation, and I’m tackling one thing at a time. I’m armed with a copy of the 16[SUP]th[/SUP] edition of the regs and Brian Scaddens guide to 17[SUP]th[/SUP] edition. I have a megger (albeit 500v), Earth Loop Impedance tester and RCD tester (not that I’ve got an RCD to test yet!) It’s a bit of a nostalgia trip actually, as the house was wired in the mid 60s, when I was in the trade - brown Crabtree toggle switches, buckle clips, etc. The original installation is good (but dated), it’s the DIY lash-ups, that are the problem (and the mice), which is often the case.
I have 3x bathroom extractor fans – the small ceiling mounted ones ducted outside – and, in keeping with many of the DIY add ons, they’re lashed up with flex. They come on when the light/s are switched on.
I can work out the zones etc – what’s allowed where and what isn’t, and gradually making sense of ‘IP’s’. I’m a little bamboozled as to what switching/protective method is required for these fans.
Do these fans need a fused spur, fusing down to 3A, or less? At the moment they are simply wired into the light circuit – presently protected by a 5 amp rewireable fuse (I know I need to address this, and the lack of RCD protection).
I’ve seen 3 pole (me no understand) fan isolators? What 3 poles are they talking about?
Any guidance on this would be appreciated.
Tony
I have 3x bathroom extractor fans – the small ceiling mounted ones ducted outside – and, in keeping with many of the DIY add ons, they’re lashed up with flex. They come on when the light/s are switched on.
I can work out the zones etc – what’s allowed where and what isn’t, and gradually making sense of ‘IP’s’. I’m a little bamboozled as to what switching/protective method is required for these fans.
Do these fans need a fused spur, fusing down to 3A, or less? At the moment they are simply wired into the light circuit – presently protected by a 5 amp rewireable fuse (I know I need to address this, and the lack of RCD protection).
I’ve seen 3 pole (me no understand) fan isolators? What 3 poles are they talking about?
Any guidance on this would be appreciated.
Tony