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#96271 - 11/15/05 07:50 PM 480V FEEDS
cruzer Offline
Junior Member

Registered: 09/15/05
Posts: 8
I'm feeding a 480v fire pump,if I put a dissconnect after the meter do I still have to put the feed in concrete

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#96272 - 11/16/05 05:37 AM Re: 480V FEEDS
George Little Offline
Member

Registered: 01/18/04
Posts: 1492
Loc: Michigan USA
With the brief amount of information you've given us the answer is No. Need more details.
_________________________
George Little

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#96273 - 11/16/05 08:26 AM Re: 480V FEEDS
dlhoule Offline
Member

Registered: 04/28/05
Posts: 71
Loc: Saline, MI 48197
Refresh my memory someone! Doesn't this disconnect have to be available to qualified personel only?
Larry

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#96274 - 11/16/05 02:04 PM Re: 480V FEEDS
cruzer Offline
Junior Member

Registered: 09/15/05
Posts: 8
The disconnect is 10" from meter.

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#96275 - 11/16/05 02:08 PM Re: 480V FEEDS
cruzer Offline
Junior Member

Registered: 09/15/05
Posts: 8
sorry the fire pump is 208v.It's 480 going to transformer.

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#96276 - 11/16/05 02:21 PM Re: 480V FEEDS
Ron Offline
Member

Registered: 03/13/02
Posts: 577
Loc: White Plains, NY
695.6(A)&(B) seem to require concrete, 1 hour rated circuit protective system or within a 1 hour enclosure.
_________________________
Ron

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#96277 - 11/16/05 03:48 PM Re: 480V FEEDS
George Little Offline
Member

Registered: 01/18/04
Posts: 1492
Loc: Michigan USA
For a job of this nature as an inspector or a contractor, I'd be looking at the plans that should be available with an engineer's seal on them.
_________________________
George Little

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#96278 - 11/18/05 05:00 PM Re: 480V FEEDS
DSpanoudakis Offline
Member

Registered: 08/31/05
Posts: 88
Loc: Astoria, Queens, N.Y.C.
Definitely get the plans and engineer with you. I just finished installing a 480v fire station yesterday.

BTW, check for continuity. 480v bomb went off due to my boss forgetting to check for continuity on Phase C. Can we say kaboom? Thank goodness the fire station was disconnected and only a crimp barrel grenaded.

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#96279 - 11/19/05 09:49 AM Re: 480V FEEDS
Paul O'Connell Offline
Member

Registered: 07/02/05
Posts: 57
Loc: Allen Park, Mi. USA
The feed needs to be ahead of the Service Disconnectg and remote of other disconnects. What are you doing with the jockey pump???

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