ALLInterview.com :: Home Page
 Advertise your Business Here     
Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions
Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   Errors
   Testimonials Refer this Site  Refer This Site to Your Friends  Site Map  Contact Us      
   
 
Categories >> Engineering >> Electrical Engineering
 


   

 

Question how to check the earth resistance value& what is the
minimum earth resistance for good earthing sysytem.
 Question Asked In Companies :: BSNL, DMRC, Epoch, KPTCL, Siemens, Wipro, Polycab, SIEA, Brookfield, Power Control,     < I also faced this Question! >
 Question Submitted By :: suresh
  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 ?    92 Yes 27 No


 
  praveen kumar jain
 
View All Answers
 
 
Please Help Members By Posting Answers For Below Questions
 
 Question Views   Select
 
Why synchronous motor is used in power factor improvement,dc series in lift 99
how much LT load can bear by the 100 KW HT connection. 436
is all the servo motors having brake?please specify which servo motors having brake for stop on position and which are not. 279
# 4 hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible my email id is sumit_lig189@yahoo.co.in 485
how many types are their in switchyard or substation(like D,I TYPE), what is differant between them 464
WHAT IS START TO INDUCTION MOTER IN STAR TO DELTA OF >5HP ? 294
What are the Safety Steps While Inspection the LT Panel.   1028
Why space heater is required for each verical bus bar chamber? if one space heater is adequate or not for anti condensation? 795
How maesure earth neutral value & how much maximum value value required in between earth & neutral. 527
what is current check gurd relay? 648
10rm cable can got load ---- amp? Or Which Size Cable can take the load 100amp capacity SCR; breaker. 426
what is the use of the puls transformer in UPS & how it works??????????? 501
What is a difference between indoor transformer and outdoor transformer of same rating 290
which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc? 368
How much current will a 5 HP delta connected motor at no load will take?Is tat need a starter 3561
E-Mail New Answers        Answer Selected Questions