Combination electrical/Mechanical Room

[retire09]

I have a plan with an electrical room with a 1200 amp 480 volt MDP and transformer that exits through a cased opening into a mechanical room with a 500,000 BTU boiler and then out a door into a parts room for a repair garage. The building is non-sprinklered and I was going to require a one hour separation for the whole thing.

I don't like the idea of combining the two rooms but don't know of any code that would disallow it.

Am I missing anything?

 

[steveray]

Is it 1200A that requires 2 exits?...No book right now

110.26C(2)

 

[steveray]

1014.3 Boiler, incinerator and furnace rooms.

Two exit access doorways are required in boiler, incinerator and furnace rooms where the area is over 500 square feet (46 m2) and any fuel-fired equipment exceeds 400,000 British thermal units (Btu) (422 000 KJ) input capacity. Where two exit access doorways are required, one is permitted to be a fixed ladder or an alternating tread device. Exit access doorways shall be separated by a horizontal distance equal to one-half the maximum horizontal dimension of the room.

 

[north star]

% = =

Also, Article 110.26©(3), `08 NEC.

= % %

 

[retire09]

The combined space is only 300sf and the electrical space has a continuous and unobstructed way of egress travel per 110.26©(2)a.

I thought about requiring the door from the mechanical room to have panic hardware but I felt that you have alredy exited the electrical room/space when you passed through the cased opening into the mechanical side.