High Earth Loop Impedance | on ElectriciansForums

Discuss High Earth Loop Impedance in the Australia area at ElectriciansForums.net

S

SteveF1

Dear All
A mate of mine recently asked me to look at his installation. It has been wired to the 17th edition and all looks kosher, but when I carried out some testing I discovered that it had High impedance values. I disconnected the Main earth that had been connected to an earth clamp, attached to the armouring of the Supply Authority cable (old type armoured covered in hessian and bitumen). Took a reading from this clamp, this gave me a reading of 4.29 ohms taken with a Fluke 1653. The type of supply is TNS.
My questions are these:
1. Is it the responsibility of the Customer or the Supply authority to provide an Earth?
2. Is there a charge for the customer if they request a TNC-S supply (PME) instead of a TNS, seeing there is no Earth provided.

Kind Regards

Steve F
:rolleyes:
 
Thanks for your reply. The supply authority attended the property in question to-day. They said that the cable sheath was not and has never been connected to earth and that an electrode will have to be installed. I find this extremely hard to believe as this would mean that the property which was built in the 50's has never had an earth and has always been a TT system. I think I will have a look at his neighbours house.

Is there a certain distance the Earth Electrode has to be away from the property?
 
Normally somewhere sensible just outside the location of the CU.

Sounds to me like the property was earthed through the incoming gas and/or water service pipes.

Not ideal!!!
 

Reply to High Earth Loop Impedance in the Australia area at ElectriciansForums.net

News and Offers from Sponsors

  • Article
Join us at electronica 2024 in Munich! Since 1964, electronica has been the premier event for technology enthusiasts and industry professionals...
    • Like
Replies
0
Views
285
  • Sticky
  • Article
Good to know thanks, one can never have enough places to source parts from!
Replies
4
Views
787
  • Article
OFFICIAL SPONSORS These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then...
Replies
0
Views
810

Similar threads

Good thinking - the other side of that is my garage and also where the gas comes in so probably quite a tidy solution if it comes to it!
2
Replies
22
Views
1K

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

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top