Discuss TN-C-S or TN-S? in the Electrical Forum area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:   American Electrical Advice Forum

if its tn-s the earthing clamp will be clearly attached to the incoming cable sheath, if its tnc-s the earth will be connected at the main knock out .
hope this helps
 
Hi Kev
TN-C-S is where the electricity supplier provides a combined protective earthing & neutral conductor as part of a protective multiple earthing system
TN-S is where the electricity supplier provides a protective earthing conductor (usually the metalic covering of the supply cable)that is separate from the neutral conductor.
Regards
Tony.
 
Hey

If the earthing system is TN-C-S then there should be a sticker on the cut out saying - Protective Multiple Earthing or PME.
 
Last edited by a moderator:
onece you get a grip on this an easy way to remember is tn-c-s = for combined supplied tn-s for supplied.
 
Hey

If the earthing system is TN-C-S then there should be a sticker on the cut out saying - Protective Multiple Earthing or PME.

This is not always the case. We have been to numerous properties in our line of work, where there is no main earthing conductor and it looks like TN_C_S system, however there is nothing actually there to say it is.
 

Reply to TN-C-S or TN-S? in the Electrical Forum area at ElectriciansForums.net

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