§108.437. Pipe sizes and discharge rates for enclosed ventilation systems for rotating electrical equipment.
46 C.F.R. § 108.437
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.
The minimum pipe size for the delayed discharge must be at least 1.25 centimeters ( 1/2 inch) standard pipe.
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).
Notes, amendments, and revision history
Authority
Authority: 43 U.S.C. 1333; 46 U.S.C. 3102, 3306; DHS Delegation No. 00170.1, Revision No. 01.4.
Source
Source: CGD 73-251, 43 FR 56808, Dec. 4, 1978, unless otherwise noted.