What is FM 200?
Answers were Sorted based on User's Feedback
Answer / arulg83
FM 200 is heptafluropropane (HFC 227) this is clean agent used for the fire protection in the critical areas like Data centre,computer room ,art gallery etc
This stores in a cylinder in liquid form upto 6 bar pressure
when fire alarm triggers after 30 sec it will release in the vapor state
this having ODP(ozone depleting Potential ) zero
| Is This Answer Correct ? | 5 Yes | 1 No |
Answer / sandeep.sekharan@yahoo.com
The cylinder storage pressure varies upto 42 bar based on size of the cylinder.
The time delay can be adjust to a maximum of 60 seconds.
| Is This Answer Correct ? | 0 Yes | 0 No |
how DC is differ from AC ? what are the difference between them ?exept (P-N)&(+__-)
Why is the diffrential protection in DG. What if the CT polarity is reversed while connecting for the same type of protection? How polarity can be made ok?
what is difference b/w CFL and Ordinary lamps? which one is useful for power saving?
state the working of discharge lamp?
how is the incoming cable size calculated for a given current rating of a panel??
why r we using shell transformer for low voltage
what is the breakdown voltage value in BDV test in transformers?
If a HV Underground Cable (13.8KV) is layed in the ground below 1.5 Mtrs and any building construction is done on the Cable route. IS this allowable or Not? What should be the clearance. As per ISO construction on HV cable route is safe or Not? Why? Can any body suggest the site for my question?
How to test IR testing & magnetic balance test
what is the mechanism of operation of brushless dc motor why is it more wexpensive then ordinary permanent magnet motors
What will happen if i connect the delta winding motor to star input.
why should a transformer be never connected to dc supply
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)