Discuss Earthing and bonding in the UK Electrical Forum area at ElectriciansForums.net

I have no idea why you keep referring to the supply conductor size, the point is can a sub main swa cable support bonding when the armour is used as the earth. This will nearly always apply to a three phase supply where the minimum size to support bonding would be 50.0. In this day and age people nearly always use three core cable utilising a core as the cpc for single phase supplies. Otherwise it would have to be 95.0 for a two core.
Because the supply conductor size, determines the size of the bonding conductor.
Yes they do nearly always use 3 core utilising a core as the CPC for single phase supplies. This is because the armour is not acceptable as a bonding conductor.
Yes exactly 95mm2 before the armour would be acceptable for 10mm2 bonding. Which nobody in their right mind would contemplate.
 

Reply to Earthing and bonding in the UK Electrical Forum area at ElectriciansForums.net

Similar Threads

TNC-S main supply with 16mm swa supplying garage consumer unit from main consumer unit in house, then 4mm swa supplying pond equipment through...
Replies
36
Views
3K
Hi there, Just a quick question. Does a main protective bonding conductor require UV protection when run outside? I am under the impression that...
Replies
3
Views
665
5 single phases to one huge property. Backup generator which can take about 106 amps split between 2 phases - 1 phase will be wired through...
Replies
2
Views
504
Morning All, Think I'm having a brain fart but I have a 70mm2 4 core SWA with a separate 35mm2 CPC. Earthing is TNS with main bonding...
Replies
5
Views
1K
Hi everyone, I'm nearly on my AM2 test and really enjoy the industrial side of things so I thought I'd learn by asking. I recently came across...
Replies
1
Views
736

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

Electrical Forum

Welcome to the Electrical Forum at ElectriciansForums.net. The friendliest electrical forum online. General electrical questions and answers can be found in the electrical forum.
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock