Earthing light fitting

[recycleit]

I have replaced blown transformers in my lights and noticed that there is no earth terminal in the fittings.

would i be right in saying i don't need one if the connections and transformer are placed in the ceiling void?

as the transformers were simply placed in the head of the fitting i would feel safer making an earth point and putting the ring connections in a box instead of taped up choc blocs.

Just wanted to check before i go charging in and changing things.

Thanks

 

[skenk]

You don't need an earth connection to the fittings if they are double insulated. You should however have an earth on the cable feeding the transformer and the connection to the transformer cable should be made in a lighting junction box, not in a tape-wrapped choc-block.

 

[recycleit]

Thanks very much for your help.

The transformers do have the double insulation symbol on them.

I will run earth into the transformers to carry it as far as i can as they have an earth continuity connector.

Should this be done with 1mm flex so that i can clamp the outer casing in the transformer or is clamping just the red/black insulation of twin and earth ok?

come to think of it the spotlights upstairs are run with twin+earth and have only clamped red/black

Thanks again

 

[recycleit]

the cables are only just long enough to make it through the plaster board so the only thing i can think of is fitting a standard rose and runing it to the transformer instead of a pendant.

does this sound like bad practice though?

other than that its flooring off upstairs which seems lot of work.

Thanks again

 

[recycleit]

View media item 18733
This is what i ended up doing after making hole in plaster board bigger.
any comments appreciated

Thanks

 

[Steve]

I like the method of suspension for the light - where most would just hang the light by its cables.

I hope that JB has a cover!

 

[recycleit]

Thanks, that hook came in handy for that.

Yes the jb will be covered and pushed in the hole.


Thanks

 

[ban-all-sheds]

Those JBs are meant to be fixed in place, and used with cables which are fixed, because they have no cable clamps.

You should replace it with something like this:

 

[recycleit]

That looks ideal
I'm off to the wholesalers with that pic now.

Cheers