Discuss Supply characteristics and earthing arrangements in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net

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R

rs250250

Can any one of you good people help me with this?

On a DEIC/EIC would I be correct in saying that the box for Ze EXTERNAL EARTH FAULT LOOP IMPEDANCE, applies to maximum stated ohmic values for the type of supply. Such as TN-S 0.8, TN-C-S 0.35 etc.

As there is always another box for measured Ze later in the form.

Muchas Gracias!
 
I put the measured value in mate I don't think there's any point in putting the maximum allowed in. I stand, as always, to be corrected though
 
I always measure, it confirms a lot of important things. Zs is all well and good, but it includes parallel paths, where as Ze doesn't if done properly.

Cheers...........Howard
 
Its the mesured value,, Dont wana be asuming you have a reliable incoming earth when infact its the leaky pond pump giving that 0.11 Ze :)
 
Always measured where possible. No point having the best installation in the world with crap earthing arrangements.
 

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