What shall be minimum thickness of firewall in between two
transformers and which code specifies it ?



What shall be minimum thickness of firewall in between two transformers and which code specifies i..

Answer / rajesh kumar

Firewalls between transformer (Firewall) shall be provided with 230mm thick RCC or 355mm thick brick wall.

You can refer NFPA 850 for reference.

Is This Answer Correct ?    9 Yes 1 No

Post New Answer

More Electrical Engineering Interview Questions

How efficiency of thermal plant can be improved?

0 Answers  


why we are maintain phase to phase clearence

4 Answers  


I have a 3 phase 600 volt prim. feed and a 120/208 sec. Isolateing tranformer .We are using this system for safety against shock . What is the proper grounding ?? Does the common on sec. get earth ground ???

1 Answers  


What is knee point voltage of transformer?

0 Answers   Nabard,


What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?

0 Answers  






why -48 volts dc used in telecommucation

0 Answers  


star delta starter control wiring diagram?

1 Answers  


Define damping ratio.

0 Answers  


I have recently seen a transformer which had two primary terminals and was connected between two lines,i would like to know what kind of transformer is it?short discription about it,any advantages,purpose of usage of the same.............

8 Answers  


why the value of impedence is taken as %impedence in fault currrent calculation

1 Answers  


why we use salt for earthing?

1 Answers  


Which protection detects both AC and DC?

3 Answers   Megatron Solutions,


Categories
  • Civil Engineering Interview Questions Civil Engineering (5085)
  • Mechanical Engineering Interview Questions Mechanical Engineering (4451)
  • Electrical Engineering Interview Questions Electrical Engineering (16632)
  • Electronics Communications Interview Questions Electronics Communications (3918)
  • Chemical Engineering Interview Questions Chemical Engineering (1095)
  • 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)