Chapter 35 — WELDING AND OTHER HOT WORK
3508 Acetylene Generators — 2025 California Fire Code
California Fire Code (Title 24, Part 9) · 2025 edition · updated 2026-09-25 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Fire Code (Title 24, Part 9) § 3508 · Effective January 1, 2026 · Official source: Building Standards Commission
3508.1 Use of acetylene generators.¶
The use of acetylene generators shall comply with this section and Chapter 15 of NFPA 55.
3508.2 Portable generators.¶
The minimum volume of rooms containing portable generators shall be 35 times the total gas-generating capacity per charge of all generators in the room. The gas-generating capacity in cubic feet per charge shall be assumed to be 4.5 times the weight of carbide per charge in pounds. The minimum ceiling height of rooms containing generators shall be 10 feet (3048 mm). An acetylene generator shall not be moved by derrick, crane or hoist while charged.
WELDING AND OTHER HOT WORK
3508.3 Protection against freezing.¶
Generators shall be located where water will not freeze. Common salt such as sodium chloride or other corrosive chemicals shall not be utilized for protection against freezing.
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