Code of Federal Regulations · Section

§ 108.437 — Pipe Sizes And Discharge Rates For Enclosed Ventilation Systems For Rotating Electrical Equipment

46 C.F.R. § 108.437

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(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).

46 C.F.R. § 108.433 46 C.F.R. § 108.439

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