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Categories >> Engineering >> Electrical Engineering
 
 


 

 
Question how to check the earth resistance value& what is the
minimum earth resistance for good earthing sysytem.
 Question Asked At :: wipro, epoch electronica, kptcl, bsnl, delhi metro rail corporation, power control corporation, seimens
 Question Submitted By :: suresh
I also faced this Question!!    
Answer Posted By  
 
Answer
As such there is no any standard of earth resistance value,
Its varies on different type of soil resistivity. Idley it
should be 0, but in different kinds of soil for electrical
equipment it should be better to below 10 Ohms and for
electronic equipment it should be better to below 5 ohms.

Is This Answer Correct ?    73 Yes 24 No


 
  praveen kumar jain
 
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