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00dan

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hey, i've just changed an old fuse board! i had to change the mains cable as it was too small, so when reconneting it there was no earth terminal on the meter! i have a cable going to an earth rod! but someone told me i should connect my mains earth in the meter with my mains nuteral, he called it nuteralizing, is this correct? im a qualified electrician and i cant recall hearing of this! so if anyone has advice it would be great thanks!!
 
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Spudnik

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  • #2
Sorry mate but this is really BASIC stuff, and to be honest i suggest contact a competent electrician to sort it out pronto.

UNDER NO CIRCUMSTANCES CONNECT THE EARTH TO YOUR NEUTRAL IN THE CONSUMER UNIT.

The main earth should go from the rod to the consumer unit earth bar.

There are many many factors to be considered and tested before work had been carried out ESPECIALLY on TT systems.
 
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Jono Pashley

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  • #7
got the quals off the back of a packet of cornflakes
 
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pushrod

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  • #8
do you guys ever get the feeling that you are helping out the cast of "How the west was won" ? I am just training but i must admit to being a bit surprised to some of the questions asked on here by people who say they are, or hint that they are, electricians.
 
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00dan

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  • #9
no this isn a wind up! i never said i CONNETED NUTERAL TO EARTH IN THE CONSUMER UNIT! i have a main earth comin from my rod to my consumer unit! wat i was told is correct! i looked into it today, and the earth terminal on the meter comes from the nuteral terminal, on the incoming side of the meter! so i wonder where did you guy's get your qualifications!!!!!!
 
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Tiger

  • Thread Starter Thread Starter
  • #10
sounds like a tn-c-s system. but you should know that and the combined neutral earth is sealed and supplied by the distributer, something you would never touch. PAGE 1 STUFF MATE :p
 
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Spudnik

  • Thread Starter Thread Starter
  • #11
no this isn a wind up! i never said i CONNETED NUTERAL TO EARTH IN THE CONSUMER UNIT! i have a main earth comin from my rod to my consumer unit! wat i was told is correct! i looked into it today, and the earth terminal on the meter comes from the nuteral terminal, on the incoming side of the meter! so i wonder where did you guy's get your qualifications!!!!!!
You are asking where we got our qualifications???????

We are not asking page 1 questions are we?

And the only cables that come from the meter are the line and neutral.

Earth cable goes into the cutout (if available).
 
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00dan

  • Thread Starter Thread Starter
  • #12
ye it is a tn-c-s system, and i know its a sealed unit, and i know i cant touch it!! i know its basic stuff but i never came across it in a practical situation! look guys i was only askin a question, because i wasn sure! i tought this site was for help! thanks
 
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Spudnik

  • Thread Starter Thread Starter
  • #14
We are more than happy to help but your first post concerned me a little.

You really should have a basic understanding on the different types of supplies that are installed throughout the country, BEFORE you undertake a major job, especially a CU change.
 
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eskimo39

  • Thread Starter Thread Starter
  • #15
Sorry to add to this, but I am currently training and have 2 questions on this.

Firstly if it is a TN-C-S System, why would it have an earth rod??? Surely that would be a TT system.

Also I understand that on a TN-C-S System the supply company usually install a device to combine the Supply Neutral and CPC, but if we connected the CPC inside the CU to the Neutral supply, wouldn't you just be making the CPC live from the Neutral return path.

Cheers
 

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