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Ze For 500a Supply - Tnc-s


epsngr

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Hi

 

I am currently designing for electrical installation of a site in UK (not London). The Supply is 500A, the REC will not give me any values for Ze (earth loop impedance). What is a sensible value to assume if I must continue with the design. The substation is within my site.

 

I will appreciate any advise.

 

 

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