46 CFR 108.437
§ 108.437 Pipe sizes and discharge rates for enclosed ventilation systems for rotating electrical equipment.
United States · 46 CFR — Shipping · Status: effective
Cite this
- Citation
- 46 CFR 108.437, § 108.437 Pipe sizes and discharge rates for enclosed ventilation systems for rotating electrical equipment, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/226804
- Permanent ID
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Full text
(a) The minimum pipe size for the initial charge must meet table 108.441 and the discharge of the required amount of CO2 must be completed within 2 minutes.
(b) The minimum pipe size for the delayed discharge must be at least 1.25 centimeters ( 1/2 inch) standard pipe.
(c) The pipe used for the initial discharge must not be used for the delayed discharge, except systems having a volume of less than 57 cubic meters (2,000 cubic feet).
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.