Running a spur for wall lighting off of ring mains.

HI, I need to run a spur from a two gang socket to accommodate wall lighting. Could you please tell me exactly how this is done. The spur will run directly into a switched fused connection. Also how many wall lights may I be able to use and am I right in saying that the spur is run in 2.5mm T&E mains cable and lighting from the socket in 1.5mm T&E cable. Thanks, Charlie.

 

The lighting cable does not need to be 1.5mm, 1.0mm is OK and easier and cheaper.

 

Ok thanks, what amp switch is recommended?

 

A little difficult inform you exactly how it should be done, but will offer some pointers.
You will require to route cable in the permitted safe zones, it is very likely that any buried cable unless mechanically protected will require 30mA RCD protection if not already existing circuit. Ideally once installed the circuit should be commissioned via a electrical installation or a minor works certificate.
Looking in Wiki may give you some valuable information!

That is fine

The number of wall lights would depend on the fuse placed within the FCU, the simple calculation would be say you fitted a 5A fuse and each lamp was rated at 40 watts you could have 28 lamps.

You could run 2.5mm2 T&E or 1.5mm2 T&E between the socket and FCU, then from there either 1.5mm2 T&E or 1.00mm2 T&E

 

That would depend on the load demanded, you would only require a 1A fuse for a load less than 230 watts. Anything above that an extra amp for ever 230 watts.

 

All sorted now, thanks. Charlie

 

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