Bathroom Extractor Fan Problem...

[telectrix]

And I'm working with what the previous owner left me.

if that's what he's left, i seriously suggest getting the whole installation inspected/tested. who know what other horror bodges he's left you.

cpc... circuit protective conductor ( earth wire )
single insulation... the outer sheat of the cable should be inside the J.box, not showing the colour (single) insulation outside
coductor ID... all conductors should show the colour they represent. e.g black used as live, should be sleeved brown. etc.

 

[westward10]

How have you connected the downlights. The cpcs or earths are the bare copper wires and they all need sleeving and connecting. I would strongly recommend you get an electrician in.

 

[westward10]

How have you connected the downlights. The cpcs or earths are the bare copper wires and they all need sleeving and connecting. I would strongly recommend you get an electrician in.

 

[Billy Whizz]

Assuming CPC is when you earth any installed fittings, there are no CPC connections on the fan assembly or on my new downlighters. Hence nothing now goes to the bellwire.

 

[Billy Whizz]

Just for entertainment, this was the archaic light fitting previously installed.

 

[Billy Whizz]

I am aware of the principle of earthing and that all earth's require Yellow/Green sleeving but how do I go about that when there is no provision on the fittings to connect such an earth?

Best regards,

BW

 

[westward10]

Any chance you can show how the downlights are connected.

 

[telectrix]

I am aware of the principle of earthing and that all earth's require Yellow/Green sleeving but how do I go about that when there is no provision on the fittings to connect such an earth?

Best regards,

BW

each cable should have it's cpc connected to it's feeder circuit and hence back to earth at the Consumer Unit. for class II fittings that don't require earthing, the cpc should just be terminated in a single connector or more usually, sleeved and folded back.at each fitting.

 

[Octopus]

Whether or not the CPC goes to the fitting, the CPC needs to be continuous to the end of the circuit.... that also applies to the cable to the fan.......

 

[Billy Whizz]

Telectrix,

Thank you for the explanations. Regarding CPC: None of the downlights have provision to connect a CPC/earth to them and neither does the fan. None of the diagrams supplied with the units showed it either.
Single insulation: The 3-core you refer in the picture is my temporary testing connection cable while trying to figure out how this problem. Once solved they will be shortened appropriately as I have done with the other wire in the J-Box.
Identification: Again, I am temporarily troubleshooting and will sleeve when the problem is successfully solved.

Westward10,

Standby, downlights photo coming...

Best regards,

BW

 

[Billy Whizz]

Westward10,

While I get a photo, this was diagram I used to wire the downlights.

Note: no CPC to the lights.

 

[telectrix]

why a push to break switch?

 

[westward10]

0.75 flex is inadequate for the purpose of fixed wiring.

 

[Billy Whizz]

Telectrix,

That's just a diagrammatic representation by whoever put it on the Internet. Rest assured I have a pull-cord switch like normal people... ;-)

Westward10,

Here are the pics, four downlighters connected in a J-Box, supplied by a switched live.

Telectrix,

As you can see, my single insulation is much better here... ;-) LOL!!

 

[Billy Whizz]

Pics...