[Code of Federal Regulations]
[Title 46, Volume 4]
[Revised as of October 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR108.437]
[Page 135]
TITLE 46_SHIPPING
(This book contains parts 90 to 139)
CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED)
PART 108_DESIGN AND EQUIPMENT--Table of Contents
Subpart D_Fire Extinguishing Systems
Sec. 108.437 Pipe sizes and discharge rates for enclosed ventilation
systems for rotating electrical equipment.
(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).