Terminating SWA with Wylex REC Supply Isolators

[Michaelwgroves]

I need to terminate 16mm SWA 2 core cable in Wylex REC Supply Isolators. Going to be using armour for earth. Whats the best thing to do with the earth. I have 12 of these to install. The only idea I have is to terminate armour on steel trunking then run 2 cores into Wylex REC Supply Isolators. Lastly connect earth back to intake. I'm sure there is a better way, I dont want to use steel trunking unless I have to?

See link below for Wylex REC Supply Isolators
http://www.tlc-direct.co.uk/Technical/DataSheets/Wylex/WYREC2.pdf

 

[Octopus]

Adaptable box. No other way of doing it.

EDIT: I take it that you are ignoring the good advice given in post #2

http://www.electriciansforums.net/e...electrical-forum/72775-earth-requirement.html

 

[Michaelwgroves]

That looks exactly what I'm looking for, albeit most are square, have you seen any longer than 300mm ?

 

[Michaelwgroves]

Adaptable box. No other way of doing it.

EDIT: I take it that you are ignoring the good advice given in post #2

http://www.electriciansforums.net/e...electrical-forum/72775-earth-requirement.html

No, very last post suggested armour is fine to use as earth, what did I miss?

 

[Octopus]

No, very last post suggested armour is fine to use as earth, what did I miss?

Tel's adice is normally spot on and people don't normally pick a fight with him.

I never use the armour as the CPC and have lost count of the amount of times that poor connectipns to the SWA has compromised Ze and or Zs when doing EICR's

 

[Michaelwgroves]

I'm not looking to pick a fight with anyone, I come herefor quality advice, and I'm never disappointed.

I agree with Tel, 3 core would be easier/safer. But likewise the stats on using SWAare conclusive and nobody questioned this in the last post. I also appreciateyour sound advice on using an adaptor box which I will be taking.
However, poor connections on SWA is surly down to poor workmanship, not the solution.I can only imagine the engineers you have followed don't bother testing theloop impedance.

 

[Octopus]

I'm not looking to pick a fight with anyone, I come herefor quality advice, and I'm never disappointed.

I agree with Tel, 3 core would be easier/safer. But likewise the stats on using SWAare conclusive and nobody questioned this in the last post. I also appreciateyour sound advice on using an adaptor box which I will be taking.
However, poor connections on SWA is surly down to poor workmanship, not the solution.I can only imagine the engineers you have followed don't bother testing theloop impedance.

The worst one by far was a metal adaptable box which had completely rusted around the cable gland! The connection may be good the day its built but what about 5/10 years down the line?

 

[onions1066]

Why are you using 2 core not 3? Purely down to cost?

 

[baazab]

use 3core swa job is done safe and just put the price up

 

[Michaelwgroves]

Why are you using 2 core not 3? Purely down to cost?

Yes, it's a cost thing. About £120 difference.

- - - Updated - - -

use 3core swa job is done safe and just put the price up

It's coming out of my pocket :-(

 

[onions1066]

No brainier for me 120 quid well spent in my eyes, how does that compare to the total for the whole job? Are they run in yet?

- - - Updated - - -

Just seen last post

 

[baazab]

6491X 16.0mm Green Yellow 100M

per M per 100M 1.67 143.00

just buy single 16mm 100meter

 

[Brightspark2]

There's nothing wrong with using armour as CPC...


Very common in industry...

 

[Michaelwgroves]

Back to adaptable boxes, can't find any long enough to do in one run, so I will buy a few. But can only find 20mm KO's. I assume I need 25mm for 16mm 2 core SWA ?
Also on CU side, I have MK metal, again no 25mm only 20 and 32mm. Can I use 32mm gland on 16mm 2 core cable, I would have thought it would be too big?

 

[jaydee81]

20mm gland for 16mm 2 core

 

[Brightspark2]

Get a box with no knockouts...


If your carefull you can drill the knockout to make it larger with knocking it through, just be very light with the drill...

 

[Guest55]

good grief.

 

[jaydee81]

why not just use a metal clad 2 mod enclosure and fit main switch in it

 

[Michaelwgroves]

20mm gland for 16mm 2 core

Are you sure, I really hope your right co's I can't find any adaptable boxes with 25mm KO's?

I find this link in another post
http://www.s-w-a.co.uk/page3/page17/page22/assets/051-052-size charts.pdf

 

[jaydee81]

as mentioned in my last post would it not be easier to use metal clad 2 module enclosure and fit main switch in it can gland swa straight into it no need for adaptable box