earth fault loop three methods?

[paulthemagpie]

when confirming auto disconnect of the supply it is necessary to determine the external earth fault loop impendance of the system. What three methods can this be achieved?

So the external earth what loop impendance is the supply companies end is that right?

 

[Deleted member 9648]

Otherwise known as Ze......where the supply company provides an earthing terminal at the intake.

 

[chronyx]

Measurement or enquiry. The third one is calculation and valid for Zs not Ze.

 

[paulthemagpie]

so what are the three methods for finding this out

ov 1 is i could ring the supply company and find out there ze reading

 

[MKS]

Measurement and enquiry, or are you talking measurement of TT three different methods???

 

[telectrix]

3 methods. 1. measure. 2, enquire. 3. guess.

 

[snowhead]

3 methods. 1. measure. 2, enquire. 3. guess.

Correction Answer 3; Not guess, but ask on a forum and take the majority answer.

 

[telectrix]

Correction Answer 3; Not guess, but ask on a forum and take the majority answer.

but he needs the answer NOW< not after 395 posts, some of which would be calling his parenthood into dispute.

 

[topquark]

Measure, Enquire or previous certs.

 

[Tonkatoy27]

Good luck with enquire, round here Western Power just say "eh"

 

[Barry Rathbone]

I think I did my regs course for no reason, I should of asked all them questions on here all them yrs ago!:mickey:

 

[llywelyn111]

Neon tester method. It will confirm everything is OK :13:

 

[trev]

See the homework questions are in again lads