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Friday, March 3, 2023
Question:
Hi CQD, a previous
Code Question of the Day was on the required fire rating of an electrical equipment room. The answer provided mentioned the requirements were in the IBC
® and not mandated by the NEC
®. I just wanted to share that Section 110.31(A) covers this as well. Thanks, Tom
A
Answer:
Hi Tom, thank you for your comments and the opportunity to provide some additional information. Section 110.31 is in Part III of Article 110; Part III is for Over 1000V Installations. Section 110.31(A) states “Where an electrical vault is required or specified for conductors or equipment 110.31(A)(1) to (A)(5) shall apply”. This Section provides the guidance on vault construction/fire rating but does not provide any guidance as to when the electrical equipment enclosure/room is required to be fire rated.