Underground generator room

[m sleem]

Would NEC permit the Underground generator room (separate building)?
I've seen in supplier's catalogs but our client has some fears and recommends to check NFPA.

 

[xformer]

Would NEC permit the Underground generator room (separate building)?
I've seen in supplier's catalogs but our client has some fears and recommends to check NFPA.

IMHO...
Look at 701.12

unless its Optional....

 

[m sleem]

IMHO...
Look at 701.12

unless its Optional....

The issue is our architect doesn't want to affect the building facade. So the underground solution is the most likely here.
Anyway, I've read twice 701.12...Are you sure it's there?!!:slaphead:

 

[kwired]

The fact that it is a separate building means wire it like you would any other separate building.

If there is an issue with it being underground it likely would be with some other code and not the NEC.

 

[xformer]

The issue is our architect doesn't want to affect the building facade. So the underground solution is the most likely here.
Anyway, I've read twice 701.12...Are you sure it's there?!!:slaphead:

The NEC doesnt specifically say no... but the 3rd paragraph of 701.12 says "consideration shall be given to the location or design, or both, of all equipment to minimize the hazards that cause complete failure due to floods"

 

[steve66]

Flooding concerns can ususally be dealt with by pumps.

In my area, tornado's and high winds would be more of a concern than a flood. i rarely get the chance, but I would usually prefer to put generators below grade for that reason.

 

[m sleem]

Flooding concerns can ususally be dealt with by pumps.

In my area, tornado's and high winds would be more of a concern than a flood. i rarely get the chance, but I would usually prefer to put generators below grade for that reason.

Yes, but the client has another concerns regarding the emission of SOX and NOX where the exhaust will be in grade level...Is it real issue?:?

 

[petersonra]

Yes, but the client has another concerns regarding the emission of SOX and NOX where the exhaust will be in grade level...Is it real issue?:?

it only runs when the power is out. if it is a big problem run an exhaust pipe up in the air as far as is necessary to alleviate his concerns.

 

[m sleem]

it only runs when the power is out. if it is a big problem run an exhaust pipe up in the air as far as is necessary to alleviate his concerns.

Again building facade...hhhh

 

[iwire]

The EPA may well require a stack and diffuser at a certain height.

Typically we have put them in the basements of buildings with the mechanical contractor handing the exhaust out of the building.

 

[petersonra]

The EPA may well require a stack and diffuser at a certain height.

Typically we have put them in the basements of buildings with the mechanical contractor handing the exhaust out of the building.

does egypt have an epa?

 

[petersonra]

Again building facade...hhhh

it would be fairly easy to hide such a stack. architects hide all kinds of things.