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#59536 - 12/06/05 09:36 PM Fire damage  
livetoride  Offline
Member
Joined: Jan 2005
Posts: 109
san diego ca usa
I went on a call today where there was an arson fire on one side of the medical mini mall. The fire department had killed the main. My job was to get as much power back as was safe. I checked the damaged suite and it happened to be the last one furthest away from the main service. I turned off all the breakers in the MDP and looked inside the cabinet for any damage. I then turned on the main. Then after checking for damage went to each sub panel turned off all the breakers and checked then turned each panel one at a time. Aside from the totaled suite there were 4 cks that tripped. Any ideas that would improve what I did? I am not worried about the tripping breakers now just needed power and lights for clean up. Rod


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#59537 - 12/06/05 11:24 PM Re: Fire damage  
e57  Offline
Member
Joined: May 2003
Posts: 2,876
S.F.,CA USA
Check for water and heat damage, then, after testing for shorts first, go turn things back on. It would be bad to have the fire dept out again, after a short did not clear, or someone got zapped.


Mark Heller
"Well - I oughta....." -Jackie Gleason

#59538 - 12/07/05 12:42 AM Re: Fire damage  
JoeTestingEngr  Offline
Member
Joined: Nov 2005
Posts: 791
Chicago, Il.
I suppose you could have used a Megger if you have one. Just don't go gung ho on voltage setting and watching for sensitive loads. Meter down the line of breakers to neutral before closing in on anything that is obvioulsly faulted.
Joe


#59539 - 12/07/05 01:24 AM Re: Fire damage  
livetoride  Offline
Member
Joined: Jan 2005
Posts: 109
san diego ca usa
<Check for water and heat damage>
Did that as I went from suite to suite both before and after turning on the circuits.

No megger on the truck. I did take ohms and amp readings.Also the faults I did have were from the FD breaking conduit and flex. Rod



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