Arc Flash - Electrician Talk - Professional Electrical Contractors Forum

K&R · 03-05-2007, 10:30 PM

We are going to be pulling feeds from the PC transformer to our new 800A DP. All seemed well and good until today when we were told they have a fire pump hooked to the transformer and would not be able to shut the power down. This is a 120/208V transformer powering a 1200A MDP in the restraunt, a 5 story motel, 4000 W of street lighting, and apperantly a fire pump. Everyone else was willing to shut down for a few hours to pull the new service in but not the fire pump. I have a set of class 0 gloves, shoulders and arc shield. Would you recomend anything more substantial?

Thanks,

robertwilber · 03-09-2007, 06:29 PM

Why should you have to risk CERTAIN danger to limit their POTENTIAL risk?
...write a change order for a generator and temporary work to feed the fire pump. You may find that they can live without the fire pump if they have to pay $20 grand to keep it available.
And don't forget to include the cost of a fire watch...

K&R · 03-10-2007, 08:07 AM

Quote:

Originally Posted by robertwilber

Why should you have to risk CERTAIN danger to limit their POTENTIAL risk?
...write a change order for a generator and temporary work to feed the fire pump. You may find that they can live without the fire pump if they have to pay $20 grand to keep it available.
And don't forget to include the cost of a fire watch...

I like the idea of a generator. I never thought about that. From what I have been told it is not a building fire pump it is a city pump used to keep pressure in the hydrant system for a few city blocks.