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[接上页] (Enacted 1991) Cap 369S reg 7 Tests of watertight doors Each watertight door in every ship shall be tested by water pressure equivalent to the head up to the freeboard deck. (Enacted 1991) Cap 369S reg 8 Ballast and bilge pumping and drainage arrangements (1) Every ship shall be provided with efficient bilge pumping plant and means for drainage so arranged that water entering any part of the hull, up to the bulkhead deck, other than a space permanently appropriated for the carriage of fresh water, water ballast, oil fuel or liquid cargo and for which other efficient means of pumping or drainage are provided, can be pumped out through at least one suction pipe when the ship is on an even keel or is listed not more than 5 degrees either way. Wing suctions shall be provided where necessary for this purpose. Efficient means shall be provided whereby water may easily flow to the suction pipes : provided that the Certifying Authority may allow the means of pumping or drainage to be dispensed with in particular compartments of any ship, if it is satisfied that the safety of the ship is not thereby impaired. (2) At least two power pumps connected to the main bilge system shall be provided, one of which may be driven by the propulsion machinery. Sanitary, ballast and general service pumps may be accepted as power bilge pumps if provided with the necessary connections to the bilge pumping system. (3) All bilge pipes used in or under coal bunkers or fuel storage tanks or in machinery spaces shall be of steel or other suitable material. (4) The bilge and ballast pumping systems shall be so arranged as to prevent water passing from the sea or from water ballast spaces into the cargo spaces or into the machinery spaces or from one watertight compartment to another. Provision shall be made to prevent any deep tank having bilge and ballast connections being inadvertently flooded from the sea when it contains cargo or being discharged through a bilge pipe when it contains water ballast. (5) The distribution boxes and manually operated valves provided in connection with the bilge pumping arrangements shall be in positions which are accessible under ordinary circumstances. The valves shall be clearly marked for identification. (6) Provision shall be made for the drainage of enclosed cargo spaces situated on the bulkhead deck of any ship; provided that the Certifying Authority may permit the means of drainage to be dispensed with in any particular compartments of any ship, if it is satisfied that, by reasons of the size or internal subdivision of those spaces, the safety of the ship is not thereby impaired. Where the freeboard to the bulkhead deck is such that the deck edge is not immersed when the ship heels 5 degrees either way, the required drainage shall be by means of a suitable number and size of deck scuppers discharging directly overboard fitted in accordance with paragraph 12 of Schedule 4 of the Merchant Shipping (Safety) (Load Line) Regulations (Cap 369 sub. leg.). In all other cases, internal drainage shall be led to a suitable space or spaces of adequate capacity, having a high water-level alarm and provided with suitable arrangements for discharge overboard. (7) The scuppers of cargo spaces intended for the carriage of motor vehicles with fuel in their tanks for their own propulsion shall not be led to machinery or other spaces where sources of ignition may be present. (8) The bilge pumping arrangements for cargo spaces intended to contain flammable or toxic liquids shall be designed so that inadvertent pumping of such liquids through the main bilge system or any other system connected to a pump located in a machinery space can be prevented. Additional means of draining such spaces shall be provided if the Director considers their provision necessary taking into consideration the quantity and characteristics of the liquids and their location. (Enacted 1991) Cap 369S reg 9 General PART IIB CONSTRUCTION-SOME TANKERS (1) This Part applies to tankers designed to carry- (a) crude oil and petroleum products which have a closed flash-point not exceeding 60 degrees Celsius and the Reid vapour pressure of which is below that of atmospheric pressure, or (b) other liquids having a similar fire hazard,except chemical tankers and gas carriers which comply with the constructional requirements specified in the Codes referred to in the definitions of such ships in regulation 1. (2) The hull, superstructures, structural bulkheads, decks and deckhouses shall be constructed of steel or other equivalent material except that the crowns and casings of machinery spaces of Category A and the exterior boundaries of superstructures and deckhouses which are required to be insulated to A60 standard under regulation 133 of the Merchant Shipping (Safety) (Fire Protection) (Ships Built On or After 1 September 1984) Regulations (Cap 369 sub. leg.) shall be constructed only of steel. (Enacted 1991) Cap 369S reg 10 Location of spaces |