Should I use 1mm or 1.5mm earth in domestic lighthing?

[midiman]

Hi,

I need to earth a replacement faceplate to a steel back box in the wall.

Should I use a 1mm, or 1.5mm sleeved cable for the job?

Thanks

 

[Pete999]

Hi,

I need to earth a replacement faceplate to a steel back box in the wall.

Should I use a 1mm, or 1.5mm sleeved cable for the job?

Thanks

What size are the lighting circuit conductors L,N and cpc? written yesterday and forgot to post

 

[Cadgey123]

please strip the cable correctly using an electricians knife, dont just pull the earth to split the grey sheathing

Please don’t tell me we are still reverting to the “ your going to stress the copper conductor, therefor decreases CSA, therefore an immediate fire risk.”
I strip it like that, not one of my jobs has ever went wrong

 

[The Ghost]

ever went wrong

These little touches are the difference between an electrician and craftsman.

 

[Cadgey123]

These little touches are the difference between an electrician and craftsman.

I am going to disagree.
I still cut a neat edge with my knife at the end of the cable.

If you connect 10 sockets on a RFC and connected them both ways. I bet the resistance of the cpc ring is the same. A lot of rubbish. My college didn’t even bother telling us otherwise.

 

[Risteard]

My college didn’t even bother telling us otherwise.

To be really controversial the training centre here taught to strip it by pulling the cpc! I really don't see the problem with it.

 

[Cadgey123]

I don’t see a problem with doing it with a knife. I just think it’s a faff and more risk of catching the cables. Trying to get your knife in a small accessory box is a pain.

 

[HandySparks]

Trying to get your knife in a small accessory box is a pain.

Try a smaller knife. These are really solid, unlike the plastic ones.
https://www.amazon.co.uk/Stanley-9MM-Snap-Blade-Knife/dp/B0001IW5A4

 

[Pete999]

I don’t see a problem with doing it with a knife. I just think it’s a faff and more risk of catching the cables. Trying to get your knife in a small accessory box is a pain.

Never s

Try a smaller knife. These are really solid, unlike the plastic ones.
https://www.amazon.co.uk/Stanley-9MM-Snap-Blade-Knife/dp/B0001IW5A4

Don't think you would go wrong with a knife like this
https://www.amazon.co.uk/goods4less...7896736&sr=8-3&keywords=ck+electricians+knife

 

[Strima]

Never s

Don't think you would go wrong with a knife like this
https://www.amazon.co.uk/goods4less...7896736&sr=8-3&keywords=ck+electricians+knife

That's all I use, as long as they're kept sharp they are a good knife.

I don't like Stanley knives or similar as the blade is very brittle and can snap off easily into little sharp shards...

 

[The Ghost]

When I look at a job and see split ends on cables and screws not straight in the fixings I think straight away "Ok not a top job here I wonder what other corners have been cut". I showed this to a third year trainee and like you @Cadgey123 he said it's a load of rubbish, not quite the same words but similar. I challenged him to strip ends of cables faster than me. He hadn't even got hold of the earth and I had stripped my cable ends. I know its a bit purist but that is my whole approach to be exact as I can. I just like to make everything neat and be very careful. I know I probably would get thrown off site if found to be doing such careful work but hey I am my own man I can proced pretty well how I like. Conversely if you inspect work that has been done the way I would suggest, you think Aha one of those guys, very fussy and careful ok...

 

[westward10]

Nothing else happening, obviously.

 

[Midwest]

please strip the cable correctly using an electricians knife, dont just pull the earth to split the grey sheathing

Okay, need to change the habit of a life time.

 

[Pete999]

View attachment 38801

Okay, need to change the habit of a life time.

Might change your mind if you were taught correctly in the first place Middy.

 

[telectrix]

hmmm.i might have banged my fist on the wall when cpc has snapped when using it as a ripping cord, but never had a sliced finger or a cut through the conductor's insulation.

 

[ipf]

I don’t see a problem with doing it with a knife. I just think it’s a faff and more risk of catching the cables. Trying to get your knife in a small accessory box is a pain.

Practice and craftsmanship, maybe?