sythai

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Arms
Just wondering, could someone please advise me to what the regulation is regarding the requirments of fly leads.... when installing metal knock out boxes, set in block work using T+E plastic capped system?


Many Thanks,

Sy
 
You don't have to use them if theres at least one lug holding on the backbox, but you really should.
 
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Yea with one fixed lug it's OK not to use them, but you still should. Especially if this is connected to your other post i.e. assessment
 
yep always get into the habit i feel they should realy to protect us guys once the sockets removed its not earthed and in my eyes it should be
 
Agreed - No Reg insisting on it but always have done it and still do.
Only takes a few seconds and whenever i come across installations were they have not been installed , you usually find No Grommets , No Colour Identification .

Then you look further and ..............
 
I wouldn't say that it's good practice (I'm not for a second suggesting that it's bad practice) - simply that it's unnecessary. Personally my preference is to connect cpc to backbox but there is absolutely no necessity to do so so long as at least one lug is fixed.

If it's unnecessary then I can't see how it can be "good practice".
 
when people say theres 'no reg but its good practice' where does the 'you dont have to use fly lead if the box has one non adjustable lug' statement come from, i do understand it offers a mechanical join between back box and front plate, but where has this reg sounding statement come from. also what benefit does earthing the box have apart from slightly more protection for mr diy taking the socket down live to get wallpaper behind it. when after all we forever have been barked 'working live should be avoided at all costs' from the EAWR.

dont get me wrong i do earth boxes but more out of habit then anything else. also i'm not flaming anyone just interesed in this ongoing argument.
 
Have not come across flying leads before in this situation (still learning). And not quite sure what you mean by 'one fixed lug'. Would someone please post a pic to demonstrate what you are talking about?
 
Sorry I've not got a picture but on a back box there are two lugs that the socket front (or what ever) screws into. One of these lugs is often can move up and down slightly (to allow it to be horizontal) and the other one does not move. The lug that can move does not provide a good connection, where as the fixed one does. Hope that helps
 
I always earth backboxes so if someone is say painting and takes the socket plate off to paint there is still a connectionto the backbox
 

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Thread starter

sythai

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Devon, United Kingdom
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Practising Electrician (Qualified - Domestic or Commercial etc)

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Title
Fly leads...or not?
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Electrical Wiring, Theories and Regulations
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sythai,
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