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Topic Title: Fire Fighting System
Topic Summary: Design review
Created On: 04 February 2014 07:07 PM
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 04 February 2014 07:07 PM
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prakashv

Posts: 62
Joined: 19 October 2002

Hi Designers/ experts in Fire Fighting System

The Fire Fighting System installed for a Construction Equipment Showroom, Spare Parts Store and Workshop facilities spread in an area of 7,500sq.m is provided with:
1) 2x electric driven fire pumps each rated for 1,000GPM/ 94kW
2) 1x electric driven jockey pump rated for 100GPM/ 15kW
3) All above three pumps are feeding from the emergency switchboard fed from main power and emergency generator power through the ATS
4) About 200 sprinkler heads and 10 fire hydrant outlets

Kindly advice the following taking into consideration of codes, industrial practices, reliability, easy for maintenance, etc.
1) What can be the maximum capacity of jockey pump in relation to the main fire pumps? The existing jockey pump is about 10% of the main fire pumps and it is short cycling probably due to pressure surge in auto mode
2) Is it advisable to have two smaller jockey pumps instead of one for having backup (In case one is down for service or repair the other can be used)?
3) Is it permitted to feed all pumps from the same switchboard?
4) Is it permitted to locate all three pumps in one room (confined/ underground room)

Appreciate valuable response

Regards

Prakash









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