Discuss Spot the electrical crime in the Electrical Forum area at ElectriciansForums.net
Much more fundamental than any of that!Cable twisted on the floor? Cables not clipped on the floor? Cable routed through the backbox? Not really safe isolation because the spur was off and not the MCB? The abortion with the clips and the towel radiator? Come on I need to know !!!
I must be honest I didn't even notice that the backbox isn't earthed.The cores are gonna get spiked by the screw on the right hand side?
I can follow that argument when say a socket face is attached, as the socket earth is connected to a metal bush that the screw sits in, thus bonding the screws and back box.I must be honest I didn't even notice that the backbox isn't earthed.
there is an argument though that the backbox needn't be earthed if it has one fixed lug although in this case that's never going to happen since the blank plate has no earth connection.
Yeah Dan because if there was a fault in that box and it became live it wouldn't automatically disconnect the supply. Leaving the box live.ha - Now you've said it even I can see that.
So those need earthing regardless of whether they're just being used as a kinda junction box then?
I was even thinking about supplementary under the sink to be fair.Think along the lines of the absolute fundamentals.
Think about what we no longer term EEBAD...
corrected that bit for you. bonding relates to extraneous parts. sorry to be pedantic.I can follow that argument when say a socket face is attached, as the socket earth is connected to a metal bush that the screw sits in, thus
bondingearthing the screws and back box.
however this is not the case for most light switches and blank plates.
except grid switches.
don't think your going to find it,I hate this.. its rough. I'm pretty sure there is stupid regulation that state as long as the surface area is less than a certain CSA it doesn't require earthing as long as it is RCD protected.
I'm going to try and find it now
Completely agree, its bad workmanship.hmmm, maybe.
if the back box is not accessable.
but you have to admit it is wrong/poor work?
The point is that the screws can’t be gripped and can’t make any significant contact with the human body other than a finger tip, the back box can’t be touched at all.Cobblers. a single back box is > 50mm x 50mm, the screws can come into contact with a person. and you can't say that a connection would be difficult.
Says the same thing in the 18th edition gn1 and gn8I must admit that my version of GN1 is the 17th Edition Amendment No. 3 version rather than the 18th Edition version, however it states:
"However, the IET takes the view that flush metal accessory boxes should be considered to be exposed-conductive-parts and connected to the main earthing terminal by means of a circuit protective conductor."
So regardless of what any Regulation states about screw heads the actual backbox still must be considered to be an exposed-conductive-part, which was my point.
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