:: 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 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  
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
View All Answers
Please Help Members By Posting Answers For Below Questions
 Question Views   Select
how to increase or decrease speed in DC shunt motor by DC convertor 306
send me any model test paper of clerical post of state bank of india....... 281
what is the difference b/w absolute encoder and incremental encoder? 288
the grid connection required for a 50 MegaWatt fotovoltaic powerplant is higher or lower than 35kv (high or medium tension)? 218
1.what is the reason for transformer and lightning arrester blast in 33kv system 675
how to make an earthing certificate 576
How to calculate the phase to phase clearness of HT /// LT bus bar????? 350
How to design inductive load for 3 phase 440v and maximum 5 amps for star or delta? Can we use a 15kW, 1450rpm motor for 15kW, 960rpm apllication?If thesame motor used what`s it`s sideeefect. 657
How to calculate cable size? How to O&m of vcb? 631
any one can explain the stages of a knee point which is taken during ct magnetising curve. 201
What is the permissable nutral current of three phase system as per IS standards? 286
How would your past experience translate into success in this job? 3158
why voltage coil in wattmeter called as pressure coil why the pressure term is used in wattmeter? 1960
Installation resistance for whole installation of 16 kva & 25 KVA DTRA a) Between each conductor b) between conductor to earth c) installation resistance for each apparatus, each conductor to earth d) earth resistance for the system of earthing 256
What are merits & De-merits of State-Space Method? What is series programming, parallel programming, general programming & direct programming ? And, difference between these programmings Techniques ? 747
E-Mail New Answers        Answer Selected Questions