Wetroom Store - Network Wetroom Suppliers
This official sponsor may provide discounts for members
Advertisement - Content continues below
Advertisement - Content continues below

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

K

KevA

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

How do you check if installation earthing is TN-C-S or TN-S if in doubt?
 
uHeat Banner - Forum Discount Available
This official sponsor may provide discounts for members
Advertisement - Content continues below
M

markspark

  • Thread Starter Thread Starter
  • #2
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
 
K

kung

  • Thread Starter Thread Starter
  • #3
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.
 
G

Guest123

  • Thread Starter Thread Starter
  • #4
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:
S

shep

  • Thread Starter Thread Starter
  • #5
some really nice colour pics in osg pages 15 & 16:cool:
 
K

kung

  • Thread Starter Thread Starter
  • #6
onece you get a grip on this an easy way to remember is tn-c-s = for combined supplied tn-s for supplied.
 
P

petegibbons

  • Thread Starter Thread Starter
  • #7
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.
 
G

Guest123

  • Thread Starter Thread Starter
  • #8
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.
That's why I said "should be" a sticker.
 
Test Meter - Forum Sponsors since 2007!
This official sponsor may provide discounts for members
Advertisement - Content continues below

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

Instyle LED Lighting Specialists UK
This official sponsor may provide discounts for members
Advertisement - Content continues below
Advertisement - Content continues below

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.
Advertisement - Content continues below
Top Bottom