Electrical help

luimneachboy

Is it ok to put 8 x 40watt outside lights on one circuit. Cable being used is 3 core NYMJ x 1.5mm. Overall length of run is approx 250 ft. Lights will be wired in "parallel" onto one switch in utility room.

Payton

luimneachboy wrote: »

Is it ok to put 8 x 40watt outside lights on one circuit. Cable being used is 3 core NYMJ x 1.5mm. Overall length of run is approx 250 ft. Lights will be wired in "parallel" onto one switch in utility room.

You'd be better posting this in the Electrical Forum

Steve

Presume you mean in series, unless you plan on having 8 cables running back.

8*40W = 320W = <2A. 1.5 NYMJ is loads for that.

Bear in mind that if this is domestic, you need to be REC to legally do it. If it is commercial then you're fine.

Pete67

Steve wrote: »

Presume you mean in series, unless you plan on having 8 cables running back.

8*40W = 320W = <2A. 1.5 NYMJ is loads for that.

Bear in mind that if this is domestic, you need to be REC to legally do it. If it is commercial then you're fine.

I think you are mixing up your series and parallel. The lights will be in parallel, live to run from a dedicated MCB to the lightswitch, switched live looped from light fitting to light fitting, neutral and earths looped similarly.

Series wiring is very rarely used in 230V systems.

Steve

Pete67 wrote: »

I think you are mixing up your series and parallel. The lights will be in parallel, live to run from a dedicated MCB to the lightswitch, switched live looped from light fitting to light fitting, neutral and earths looped similarly.

Apologies, you are right, I was thinking ring vs spur

Yes, of course that is a parallel circuit.

Series wiring is very rarely used in 230V systems.

Unless it's December

luimneachboy

Cheers lads. Ya in parallel.. For a minute i thought i was losing it. My only doubt was for the run length it might overload the cable hence running 2 circuit's.