Code requirement for electrical room doors to swing out?

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Probably not. The rule in 110.26(C)(3) that requires doors to swing out only applies when the electrical equipment in the room is rated at 1200 amps or more. 110.33(A)(3) requires swing out doors for electrical rooms that contain equipment operating over 600 volts.
 
samblv said:
Are the doors to an electrical room, with 3hr rated concrete walls and transformers over 150kva, required to have the doors swing out towards the path of egress?
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Is that a vault for POCO equipment? If so, they will have design standards.
 
samblv said:
Are the doors to an electrical room, with 3hr rated concrete walls and transformers over 150kva, required to have the doors swing out towards the path of egress?
Click to expand...

450.43 Doorways. Vault doorways shall be protected in accordance with 450.43(A), (B), and (C).

(A) Type of Door. Each doorway leading into a vault from the building interior shall be provided with a tight-fitting door that has a minimum fire rating of 3 hours. The authority having jurisdiction shall be permitted to require such a door for an exterior wall opening where conditions warrant.

Exception: Where transformers are protected with automatic sprinkler, water spray, carbon dioxide, or halon, construction of 1-hour rating shall be permitted.

Informational Note: For additional information, see NFPA 80-2010, Standard for Fire Doors and Other Opening Protectives.

(B) Sills. A door sill or curb that is of sufficient height to confine the oil from the largest transformer within the vault shall be provided, and in no case shall the height be less than 100 mm (4 in.).

(C) Locks. Doors shall be equipped with locks, and doors shall be kept locked, access being allowed only to qualified persons. Personnel doors shall swing out and be equipped with panic bars, pressure plates, or other devices that are normally latched but open under simple pressure.
 
So the real question is: Is the room a "vault" or is it an "electrical room"?. Is the transformer one that requires a vault?
 
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