5A lamp circuits

[lilman]

Evening all - as title suggests I've got to install a six outlet lamp circuit. (Will probably have to install a complete new circuit as current lighting circuit is fairly well loaded as is). Not something I have done before. Anyone got any tips or advice I may find useful, or is it as straightforward as I imagine it probably is? Thanks in advance. Lilman

 

[D Brennan]

Straight forward as you say, only thing different is the actual sockets to plug into.

 

[Apache]

round pin plugs. 6A MBC/RCBO. What's the CU like? RCDS? Earthing and bonding ok?

 

[batty]

Lilman straight forward as installing any other circuit are you Part p registered as installing new circuit comes under part p.

Batty

 

[lilman]

Lilman straight forward as installing any other circuit are you Part p registered as installing new circuit comes under part p.Batty

Yeh - I'm part P registered (NICEIC) ; just never had to install a lamp circuit before. I've been trying to think of a way of installing the new lamp sockets, and I think I am now going to take a feed off the lounge ring final circuit via a 2 module grid switch (5A fuse/switch). Saves lifting any boards; less paperwork. Cheers

 

[Gforce]

I thought-whilst you can have as many spurs as you like from a ring main you were limited to one spur from each socket-and this would be a radial spur with many sockets from it.

 

[lilman]

I thought-whilst you can have as many spurs as you like from a ring main you were limited to one spur from each socket-and this would be a radial spur with many sockets from it.

The 5A fuse is at the beginning of the new lamp circuit! The number of outlets is dependent upon the load characteristics.

 

[Andy™]

I thought-whilst you can have as many spurs as you like from a ring main you were limited to one spur from each socket-and this would be a radial spur with many sockets from it.

if the spur goes through a fuse, then it makes no difference how many sockets are on it

 

[batty]

As long as sockets are Rcd protected there should be no problem coming of ring main. Just use a standard sw/spur with 5 amp fuse. I did this on a job recently as lighting was only twin and it would have been a real pain trying to rewire whole circuit.

Batty

 

[Andy™]

or use an RCD spur if the existing sockets are not RCD'd.

butif your using non-standard sockets (5A), you may be able to omit RCD protection if cables are surface/not buried etc

 

[batty]

or use an RCD spur if the existing sockets are not RCD'd. butif your using non-standard sockets (5A), you may be able to omit RCD protection if cables are surface/not buried etc

I thought all sockets less than 20 amps need Rcd protection.

Batty

 

[Andy™]

I thought all sockets less than 20 amps need Rcd protection.Batty

no. 411.3.3 (i) requies all sockets for general use to be RCD'd.

but an exception to (i)

411.3.3 (i) (B). 'a specific labelled or otherwise suitable identified socket outlet provided for connection of a particular item of equipment'

a 5A socket specifically for lights would fit nicely into that