Section 1 General

101. Application

1. The requirements not specified in this Guidance are to be in accordance with Pt 7, Ch 5 Sec 11, Sec 12, Sec 13, Sec 14 of Rules for the Classification of Steel Ships.

2. For fire protection, means of escape and fire detection and extinction of the units, attention is to be paid to the requirements of the national regulations of the country in which the unit is registered.

102. Definition

1. "H" class divisions are those divisions formed by bulkheads and decks which comply with the following criteria:

(1) they are constructed of steel or other equivalent material;

(2) they are suitably stiffened;

(3) they

are insulated with approved non-combustible materials such that the average temperature of

unexposed sides will not rise more than 140 ℃ above the original temperature, nor will the

temperature, at any one point, including any joint, rise more than 180 ℃ above the original

temperature, within the time listed below during 120-minute hydrocarbon fire tests:

class "H-120" 120 min

class "H-60" class "H-0"

60 min

0 min

(4) they are constructed as to be capable of withstanding and preventing the passage of smoke and flame to the end of the one-hour standard fire test; and

(5) they are ensured by through tests of prototype bulkheads or decks that the specimen is sub-

jected to the temperature corresponding to the curve of hydrocarbon fire time versus temperature described in Interim Hydrocarbon Fire Resistance Test for Elements of Construction for Offshore Installations given by U.K. Department of Energy or Norwegian Petroleum Directorate to ensure that it meets the above requirements for integrity and temperature rise, and to be approved by the Society or organizations deemed appropriate by the Society.

2. "A class divisions" are those divisions formed by bulkheads and decks which comply with the following criteria:

(1) they are constructed of steel or other equivalent material;

(2) they are suitably stiffened;

(3) they

are insulated with approved non-combustible materials such that the average temperature of

the unexposed side will not rise more than 140 ℃ above the original temperature, nor will the

temperature, at any one point, including any joint, rise more than 180 ℃ above the original

temperature, within the time listed below: class "A-60" 60 min

class "A-30" 30 min class "A-15" 15 min class "A-0" 0 min

(4) they are constructed as to be capable of preventing the passage of smoke and flame to the end of the one-hour standard fire test; and

(5) the Society has required a test of a prototype bulkhead or deck in accordance with the Fire

Test Procedures Code to ensure that it meets the requirements above for integrity and temper- ature rise.