what is earthing ,grounding in c&i panel?what is the
resistance in earthing and grounding of c&i panel?what do u
mean by shielding and what is its resistance?



what is earthing ,grounding in c&i panel?what is the resistance in earthing and grounding of c&..

Answer / siddhartha jyotishi

resistance should not be more than 2.5 ohms.
shielding resistance is 2Mohm.

Is This Answer Correct ?    6 Yes 7 No

Post New Answer

More Instrumentation Interview Questions

Hi buddies! my name is sachin and i am working as a electrical and instrumentation engineer in a paper plant. right now i am facing a problem and if someone could help me it will be an immense pleasure to me. i am using AC 800M to synchronise DCS500 drives on paper machine and rewinder.communication is on PROFIBUS and we are using NPBA-01 module to link profibus to DC drives.But these days two of these drives are showing a error named FIELDBUS COMM.TIMED OUT and the drives get tripped.I have changed the NPBA module and PROFIBUS cable.So if anyone can do please help me out with this problem.I'll be highly grateful.

0 Answers  


What is the use of +/- 20ma in analog measurement,and which instrument gives +/-20ma output

1 Answers  


what is compensation in engineering and what is temperature compensation?

1 Answers   Binani, Yokogawa,


Can any body give detail about orifice sizing?

5 Answers   Essar,


What is the use of gauge?

0 Answers  






how does we calibrate a square root flow transmitter ,give an example and explain it step by step like range calculation , calibration hook up series connection , zero check , and how to apply pressure , and if not geting proportional output then what should we do ?

0 Answers  


Explain signal isolator

0 Answers  


In E&I diagram what is the meaning of rectangular box and circular box

3 Answers   L&T,


I need the intools training institute address in india. Intools subject oriented local authors books.Refer me plz

3 Answers  


What is motion balance principle?

0 Answers  


Im working in a shopping center, it is also hotel and office building, two towers exactly and someone is proposing a PLC control for the HVAC system, but Im thinking of a DDC control system. in this case what is the difference between PLC and DDC control?

1 Answers  


loop chech tools list

1 Answers   BAP,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5084)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16631)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1094)
  • Aeronautical Engineering Interview Questions Aeronautical Engineering (239)
  • Bio Engineering Interview Questions Bio Engineering (96)
  • Metallurgy Interview Questions Metallurgy (361)
  • Industrial Engineering Interview Questions Industrial Engineering (259)
  • Instrumentation Interview Questions Instrumentation (3014)
  • Automobile Engineering Interview Questions Automobile Engineering (332)
  • Mechatronics Engineering Interview Questions Mechatronics Engineering (97)
  • Marine Engineering Interview Questions Marine Engineering (124)
  • Power Plant Engineering Interview Questions Power Plant Engineering (172)
  • Textile Engineering Interview Questions Textile Engineering (575)
  • Production Engineering Interview Questions Production Engineering (25)
  • Satellite Systems Engineering Interview Questions Satellite Systems Engineering (106)
  • Engineering AllOther Interview Questions Engineering AllOther (1379)