External Light

[timmyquick]

What is the best way to wire an external light?

If i wire it like this do i just use connector blocks on the external light as it only has 3 inside.
http://homepage.ntlworld.com/timothy.lhear/untitled2.JPG


or do i wire it like this?

http://homepage.ntlworld.com/timothy.lhear/untitled1.JPG


And can i just spur the feed of the mcb as i don't want to brake into an existing light circuit as to much floor boards would have to come up.


Thanks for any replies.

 

[breezer]

so long as the mcb is for the lighting circuit then yes, and either way can be done so long as you wire it correctly ( you do not show connections)

 

[timmyquick]

so long as the mcb is for the lighting circuit then yes, and either way can be done so long as you wire it correctly ( you do not show connections)

thanks for the reply, which method do you think electricians are most likely to use? Junction box or take switched live to the light?. Or is it just normally down to preference to the individual person.

 

[Adam_151]

Or you could take the feed to the switch, then out to the light, in the switch, join neutrals with terminal block, feed live to com, light live to L1

 

[Bas]

You musn't put a junction box under the floorboards. Only crimped, soldered or similar mechanically sound joints can be made where they cannot be readily maintained.

 

[timmyquick]

You musn't put a junction box under the floorboards. Only crimped, soldered or similar mechanically sound joints can be made where they cannot be readily maintained.

I'm no expert but even the advice on the how too's on this forum say when extending a ring or adding a spur for a socket use a junction box. Is it not allowed within the regs to use a junction box? As i have looked on many forums and it seems to me to be an excepted method using junction boxes even under floor boards.

 

[andy]

junction boxes can be used if accessable (i.e. not buried/plastered into a wall). they can be used where accessable (i.e. behind a blanking plate, in a loft)

 

[ban-all-sheds]

Blimey - how long has Etch-a-Sketch been able to do colours?

 

[ban-all-sheds]

You musn't put a junction box under the floorboards. Only crimped, soldered or similar mechanically sound joints can be made where they cannot be readily maintained.

A somewhat harsh and uncompromising interpretation of "accessible".

How does that square with the junction-box system of lighting circuits?

 

[Lectrician]

How about 1 cable from CU to the light, and 1 cable from the CU to the switch. Use 1 x terminal block inside CU. Compliant, but adam_151 way would be the best shot.