CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER D—TANK VESSELS (parts 30 to 39) > PART 32—SPECIAL EQUIPMENT, MACHINERY, AND HULL REQUIREMENTS > SUBPART 32.60—Hull Requirements for Tank Vessels Constructed On or After July 1, 1951 (§32.60-1 to §32.60-45) > 32.60-45—Segregation of spaces containing the emergency source of electric power—TB/ALL.

32.60-45—Segregation of spaces containing the emergency source of electric power—TB/ALL.

(a) The provisions of this section shall apply to all vessels contracted for on or after October 1, 1958.
(b) When a compartment containing the emergency source of electric power, or vital components thereof, adjoins a space containing either the ship's service generators or machinery necessary for the operation of the ship's service generators, all common bulkheads and/or decks shall be protected by approved “structural insulation” or other approved material. This protection shall be such as to be capable of preventing an excessive temperature rise in the space containing the emergency source of electric power, or vital components thereof, for a period of at least one hour in the event of fire in the adjoining space. Bulkheads or decks meeting Class A-60 requirements, as defined by § 72.05-10 of subchapter H (Passenger Vessels) of this chapter, will be considered as meeting the requirements of this paragraph.