|
|
plastic pipe penetrate A or B fire division shall be paid attention to keep the fire endurance is not impaired. These arrangements are to be tested in accordance with ‘Recommendations for Fire Test Procedures for “A”, “B” and “F” Bulkheads’ (IMO Resolution A754 (18) as amended).
usually shipyard is difficult to get the type approval certificate based on the test mentioned above, so, pleastic pipe is better not to penetrate A deck and A bulkhead.
when plastic pipe penetrate B deck/bulkhead, a steel sleeve, having a thickness of not less than 1,8 mm and a length of not less than 900 mm for pipe diameters of 150 mm or more and not less than 600 mm for pipe diameters of less than 150 mm (preferably equally divided to each side of the division). The pipe shall be connected to the ends of the sleeve by flanges or couplings; or the clearance between the sleeve and the pipe shall not exceed 2,5 mm; or any clearance between pipe and sleeve shall be made tight by means of noncombustible or other suitable material |
|
发表于 2011-1-7 11:45
提升卡
变色卡
