Foam application around electrical equipment must comply with which code?

• A. Electrical code.
• B. Building code.
• C. Plumbing code.
• D. Fire code.

Answer: (A)

Protection around electrical equipment when foam is present is governed by the electrical code. This code specifically covers electrical installations, including how equipment must be protected from liquids and foam, enclosure integrity, ratings for wet locations, and proper bonding and grounding. Those requirements are what keep energized parts safe when a foam-water sprinkler system could bring foam into contact with equipment. The building code, plumbing code, or fire code don’t provide the primary electrical safety rules for handling foam exposure near energized gear. Building code handles structure, plumbing code covers piping systems, and the fire code addresses fire protection strategy in general, but the detailed protection of electrical installations in wet or foam-prone environments comes from the electrical code (NEC).