LIGHTS

ROEBUCK · Posted: Thu May 03, 2007 2:10 pm Post Subject: LIGHTS

Hello,If im wiring in plastic bulk head lights and using plastic switches do I need to run in an earth wire?

There is no earth point inside the bulk head lights nor in the plastic switches.

grantewart · Posted: Thu May 03, 2007 2:24 pm Post Subject: Re: Lights

Yes you should always have an earth wire at each point of your circuit for testing purposes.

Regards,
Grant

securespark · Posted: Thu May 03, 2007 2:28 pm Post Subject:

Unless you use single in conduit, there will always be a cpc in the cable. Unless you have some cable left over from pre 1966...

Sleeve the cpc and terminate, if possible. Whatever you do, don't snip it off...

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ROEBUCK · Posted: Thu May 03, 2007 3:19 pm Post Subject: Re: Lights

grantewart wrote:

Yes you should always have an earth wire at each point of your circuit for testing purposes.

Regards,
Grant

There is no earthing point inside the bulk heads as they are all plastic and no earthing point inside the switches.

festa · Posted: Thu May 03, 2007 3:25 pm Post Subject:

So just cover the exposed earth wire with green and yellow sleeving and screw it into a single choc block to keep it safely hidden behind the switch/ lamp.

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grantewart · Posted: Thu May 03, 2007 4:02 pm Post Subject:

Exactly, just terminate your cpc's into a con block and tape it up for safety

Spark123 · Posted: Thu May 03, 2007 5:26 pm Post Subject:

Then it is handy when Mrs Roebuck wants the outside light or switch changed for metal ones

RF Lighting · Posted: Thu May 03, 2007 5:44 pm Post Subject:

grantewart wrote:

Exactly, just terminate your cpc's into a con block and tape it up for safety

Please dont tape it up.

There is no need, and I hate getting my fingers covered in the sticky residue it leaves behind.

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downlights

electrician_19 · Posted: Thu May 03, 2007 8:32 pm Post Subject:

Here is my tip - why not try using heat shrink sleeving over the cpc? That is what I did when I was wiring a plastic bulkhead.

RF Lighting · Posted: Thu May 03, 2007 9:02 pm Post Subject:

What purpose would that serve?

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electrician_19 · Posted: Thu May 03, 2007 9:05 pm Post Subject:

well it covers the cpc safely. It isn't good practice to cut the core!

davy_owen_88 · Posted: Thu May 03, 2007 9:07 pm Post Subject:

Do they make green & yellow heat-shrink? Because if not it's a bit pointless putting heat shrink over the core and then needing to sleeve it for identification purposes...

RF Lighting · Posted: Thu May 03, 2007 9:07 pm Post Subject:

Surely earth sleeving is designed for this? and then pop a strip connector on the end of the CPC to provide a convenient point to carry out EFLI testing.

davy_owen_88 wrote:

Do they make green & yellow heat-shrink?

Not sure if 'they' make it, but 'SWA' (specialised wiring accesories) do

<edit>

Found some

http://www.heatshrink.com/b2yg.htm

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Lectrician · Posted: Fri May 04, 2007 6:05 am Post Subject:

grantewart wrote:

Exactly, just terminate your cpc's into a con block and tape it up for safety

How does that make it safe?

Tape should be banned - far too many people use it for pointless tasks. It is used as a tool, not an installation item.

And who said heat shrink? Another pointless and OTT recommendation. Just sleeve the earth and terminate into a term block. Either the lights or switches could be changed in the future.