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Question
What is the min.& max distance between two earth spikes is 
required for measuring earth resistance of an earth pit? Is 
the manufacturer of Earth tester decides this? Pls explain.
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
the minimum and maximum distances are 5 and 10 meter in
practice. But in general manufacturer declares the distance
requirement.
 
Is This Answer Correct ?    11 Yes 1 No
Prem Devkota
 
Answer
# 2
The minimum and Maximum distance is zero. And manufacturer does not decide anything. 
Is This Answer Correct ?    1 Yes 1 No
Elizabeth
 
 
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
why the motor running in delta connection ? it can be in star? NTPC 13
what is first pole to clear factor   1
A three phase load, around 4 km away from the 11/0.433KV distribution transformer (Neutral of Transformer is solidily earthed) and consisting of mainly very costly and sensitive electronic equipments is giving trouble due to high voltage difference between neutral and body earth. Whether this problem can addressed by connecting neutral at the load point solidly to earth?   3
Why the design of electromechanical energy conversion machines is based on the medium of conversion as megnetic field not as electric field?   2
does meager test perform on lightning arrester ? if doesn't then why ?   1
What is SF6 Circuit Breaker? AMDOC 2
why we are testing cables with DC supply not with AC supply? Aurobindo 5
2. If 8.35%Z means the percentage impedance of 132/11kV transformer self,will like to reconfirm the percentage impedance that is supplied from power company?   2
Pls anyone explain me the basics of wiring a house?   3
if generator is running in iso mode parrallel with grid and suddenly grid breaker off what will happen? century 6
What will happen if an AC induction motor is applied with DC voltage?????????Kindly give all the posssible answers...   2
What is the name of powder which is used in inner side of a cable? and purpose?   1
 
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