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Con - I think what everyone is getting at is that there is no need to replace your plastic back boxes with metal ones.

When I wanted to get mine changed last year i phoned BT and the guy I spoke to actually told me to change it myself if i though i was competant enough. He said even if I do it wrong then I'd just have to get an engineer out the same as if I got BT to change it so nothing to lose. He even...

542-03-01 Just says to follow reg 543 and also gives csa for buried cable as I said above, so yes for buried cable you need to use 54A. I'll give you that one :wink: Reg 543-01-04 basically says, if you can't or don't want to calculate csa using the adiabatic equation then you can use table...

Well mine is actually fixed to the wall through the cabinet (which is also fixed to the wall) Maybe think of the cabinet as a giant surface box :lol:

I fitted our shaver socket in our bathroom cabinet. I just got a regular bathroom shaver socket and a surface box. I drilled through the cabinet to allow the cable in and mounted the surface box inside the cabinet. Don't forget to supplimentary bond the socket where relevant and it's...

here's what the regs say on earthing conductors (which are different to bonding conductors) 543-01-03 The cross sectional area where calculated shall not be less than S=squareroot(I^2*t)/k S is cross section area in mm^2 I is the maximum current that can flow through the protective device...

Okay Forgot to mention this again but I think I put it in an earlier post, the supply comes from underground, does this make a difference? I would have assumed that they should be armoured in some way, but I guess you never can tell. I'll have a god look tonight and see what I can see...

Cheers Big_Spark, didn't take it as an insult. I'm quite happy to acknowledge that I browse this forum as a DIYer in order to learn from reading posts and asking questions. I'm certainly no expert, but like to think I can provide useful input occasionally. It also provides a welcome distraction...

Cheers for the replies. My eyebrows are fully intact so I will assume all is fine. Should I send them in for callibration first do you think :) :D

I am ideed, I am trying to keep up with you big boys though :wink: I do know a bit about how electrickery works, but I wasn't trying to tell the people here who clearly know loads more than me how to do their jobs, sorry if I came over like that. I'm just trying to confirm stuff and understand...

Just slightly curious about silicone sheathed wires. I have some low voltage undercupboard hologens with silicone sheathed flex. I wanted to check that I was okay running them near my hob where it will get quite hot but couldn't find anything in the regs about silicone sheathed, am I missing...

But as Plugwash said, if the domestic TT supply earth rod is used with a resistance of 10 ohms we only get a current of 24A so the fuse still won't opperate, it will just make every extraneous metal part in your house live. You'd need a Ze of around 1 ohm to blow one of these fuses. If my DNO...

Hi everyone I've been following this thread quite closely because I'm on a TT supply and my supply cable comes from underground on a lead sheathed cable so this stuff may apply to me. Should the lead sheathing be earthed (it isn't at the moment) or is the sheathing earthed through its own...

Best way would be to daisy chain them, ie go from one, to the next, to the next... until you get to the last one see the faq

Cheers for the replies, I can tell the missus that it's meant to be like that then :D Plugwash:- as it happens the shaver socket is spurred of the ring so a regular light whould need supplimentary bonding. I thought shaver sockets needed RCD protection though so is it usual to have them on...

Hi all I have just fitted a set of 5 20W selv halogens from B+Q in my bathroom. Before I get jumped on I know you guys hate halogens, but I wanted selv to save having to cross bond to the shaver outlet which would involve ripping off tiles. I'm also well aware of building regs and will be...

This has seems a recurring theme so i've just had a quick skim of the regs so providing you have alarms and escape routes you are covered in a regular house! Only if the house has one or more floors more than 4.5m above ground level do fire resistant barriers become involved (a) and (b)...

Slightly different but we've recently been stripping doorframes of umpteen layers of gloss. After many long days using chemicals, we actually found that the easiest way to do it was to scrape it with a chissel, Hold the chisel bevelled face up with the handle a bit lower than the edge and scrape...

Cheers for the replies, I'll try Wickes again, maybe I missed it last time I was in. Eurocell have a northampton branch too so cheers for that one Kevash. Failing that I'll try a glazing company round here (the guys I got my windows from have already stopped trading 1 year on, so much for my 15...

I guess this is a bit of a longshot, but does anyone out there know of anywhere in the milton keynes/buckingham/northampton/bedford area that sells UPVC quadrant? I need some to finish round the internal edges of our bay window. We did have a Trims Ltd nearby but they seem to have shut down and...