Electrical room rating requirements

[TheCommish]

Where do I find the requirements for electrical rooms to be rated? I have in my mind normal electrical rooms need to be 1 hour and emergency need to be 2 hours.?

or it am going off the deep end, thank you

 

[RLGA]

In the NEC. Per the 2014 edition (the only one I have references for), which is referenced by the 2015 IBC:

• Section 110.31(A)(1) for electrical equipment vaults
• Section 450.21(B) for transformer rooms
• Section 695.6(A)(2) for fire pump feeder circuits
• Section 695.14(F) for generator control wiring
• Section 700.10(D)(1) and (2) for emergency power source feeder circuits and equipment
• Section 700.12 for emergency power sources
• Section 708.20 for emergency power sources for critical operations
• Sections 708.10(C) and 708.11(B) for critical operations feeder circuits and equipment

 

[TheCommish]

In the NEC. Per the 2014 edition (the only one I have references for), which is referenced by the 2015 IBC:

• Section 110.31(A)(1) for electrical equipment vaults
• Section 450.21(B) for transformer rooms
• Section 695.6(A)(2) for fire pump feeder circuits
• Section 695.14(F) for generator control wiring
• Section 700.10(D)(1) and (2) for emergency power source feeder circuits and equipment
• Section 700.12 for emergency power sources
• Section 708.20 for emergency power sources for critical operations
• Sections 708.10(C) and 708.11(B) for critical operations feeder circuits and equipment

Thank you Ron