g umamahesh


{ City } vizag
< Country > india
* Profession * electrical supervisor
User No # 84182
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Question { BSNL, 144771 }

how to check the earth resistance value& what is the
minimum earth resistance for good earthing sysytem.


Answer

earth resistance of individual earth pit should be less
than 5ohms and when it is connected with grid should be
less than 1 ohms

Is This Answer Correct ?    1 Yes 1 No