Electrical wiring of a light

Jun 30, 2008 23 Replies

Dear all Thank you so much for all your help, being called an idiot certainly helped alot, it meant I had to prove to myself that it could be done. Wire 1 was the supply Wire 2 was for the bathroom Wire 3 was the switch

I could not figur out how to do it without a junction box, so I fitted a junction box, and introduced a 4th wire which was a flex coming out to join with the new light fitting.

Once I had got the junction box it all worked out rather well.

So thank you all again for your help. Cheers Nick

Good. But you'll now know to make notes when wiring is involved. Saves a lot of time. Unless you're certain what you're doing.

Yup.

Presumably this was all inside the original ceiling rose? That could have been re-used, concealed inside the ceiling void.

We aim to help. And have a bit of fun along the way.

On Mon, 7 Jul 2008 02:59:56 -0700 (PDT) someone who may be B3any wrote this:-

If a suitable length of suitably sized terminal strip

cannot be placed inside the fitting then a junction box is the correct solution.

Junction boxes should be fixed to the building, which can be difficult when replacing fittings and this is often ignored.

If a fitting doesn't have provision for loop-in through wiring then placing terminal strip inside isn't necessarily going to provide a satisfactory solution. In any case the 17th edition regs now effectively ban the practice:

"559.6.2.1 The installation of through wiring in a luminaire is only permitted if the luminaire is designed for such wiring."

And 559.6.2 deals with cable types suitable for though wiring, which may need to have high temperature ratings.

The Chocbox can be very useful here since it has cable clamps. You can also use it to house crimped connections where the junction is going to become inaccessible.

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required