Battery-charging areas for industrial trucks (such as forklifts) present a fire hazard due to the potential for flammable hydrogen gas buildup and electrical malfunctions. To mitigate this risk, portable fire extinguishers with a minimum rating of 40-B:C are required.
Reference to Fire Inspector Documentation:
1. 2021 International Fire Code (IFC) – Section 309.5 (Fire Extinguishers for Battery-Charging Areas)
IFC 309.5 states that battery-charging areas must have a portable fire extinguisher with a minimum rating of 40-B:C to handle potential electrical and flammable liquid fires.
The B rating covers flammable liquid fires (such as battery electrolyte leaks), while the C rating ensures it is safe for electrical fires.
2. NFPA 10 – Standard for Portable Fire Extinguishers (2022 Edition)
NFPA 10, Table 6.3.1.1 outlines that industrial battery-charging areas must have at least one extinguisher rated 40-B:C.
This ensures adequate fire suppression capability for both electrical and flammable liquid hazards.
Detailed Explanation of Answer Choices:
Option A (Incorrect): 4-A:20-B:C includes a higher A-rating (for ordinary combustibles), but 20-B:C is below the required 40-B:C.
Option B (Incorrect): 3-A:40-B:C exceeds the B:C requirements but adds an unnecessary A-rating, which is not specified in the code.
Option C (Incorrect): 2-A:10-B:C is insufficient, as it does not meet the 40-B:C minimum requirement.
Option D (Correct): 40-B:C is the correct and minimum required rating per IFC 309.5 and NFPA 10.
Thus, the correct and verified answer is: D. 40-B:C.
Submit