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[接上页] (Enacted 1991) Cap 369R reg 5 Electrical equipment and installation - general (1) In every ship to which these regulations apply, the electrical equipment and installations, including any electrical means of propulsion, shall be such that the ship and all persons on board are protected against electrical hazards. The electrical equipment and installations shall comply with the requirements specified in Schedule 3. (2) Every such ship, being a ship in which electrical power is the only power for maintaining auxiliary services essential for the propulsion or safety of the ship, shall be provided with two or more generating sets of such power that the aforesaid services can be operated when any one of the sets is out of service. (3) Where the electrical load includes services essential for the propulsion or safety of the ship and the normal sea load is such that two or more generators are required to operate in parallel, arrangements shall be made to trip automatically sufficient non-essential load when the total current exceeds the connected generator capacity. (Enacted 1991) Cap 369R reg 6 Emergency source of electrical power SHIPS OF 5000 TONS OR OVER (1) In every ship to which these regulations apply being a ship of 5000 tons or over there shall be provided in a position above the uppermost continuous deck and outside the machinery casings a self-contained emergency source of electrical power so arranged as to ensure its functioning in the event of fire or other casualty causing failure of the main electrical installation. (2) In every such ship the emergency source of electrical power required by subregulation (1) shall be capable of operating simultaneously for a period of at least 6 hours the following services- (a) the emergency lighting required to be provided at the muster and embarkation stations and alleyways, stairways and exits giving access to the muster and embarkation stations, and at each survival craft, its launching appliance, and the area of water into which the survival craft is to be launched; (L.N. 153 of 2001) (b) an emergency lighting system which shall be provided in the main machinery space, the space containing the ship's main electric generating plant, on the navigating bridge and in the chartroom; (c) the general alarm, if electrically operated; (d) the ship's navigation lights if solely electric; and (e) the daylight signalling lamp if it is operated by the ship's main source of electrical power.(3) (a) In every such ship the emergency source of electrical power shall be either accumulator (storage) batteries capable of complying with the requirements of subregulation (2) without being recharged or suffering an excessive voltage drop or a generator driven by internal combustion type machinery with an independent fuel supply and with efficient starting arrangements and the fuel provided for such machinery shall have a flash point of not less than 43oC. (b) The emergency source of electrical power shall be so arranged that it will operate efficiently when the ship is listed 22 1/2 degrees and when the trim of the ship is 10 degrees from an even keel. (c) Provision shall be made for the periodical testing of the emergency source of electrical power and its associated circuits. (Enacted 1991) Cap 369R reg 7 SHIPS OF 1600 TONS OR OVER BUT UNDER 5000 TONS (1) In every ship to which these regulations apply being a ship of 1600 tons or over but of under 5000 tons there shall be provided in a position above the uppermost continuous deck or raised quarter-deck and outside the machinery casings a self-contained emergency source of electrical power so arranged as to ensure its functioning in the event of fire or other casualty causing failure of the main electrical installation. (2) In every such ship the emergency source of electrical power required by subregulation (1) shall be capable of operating simultaneously for a period of at least 3 hours the following services- (a) the emergency lighting required to be provided at the muster and embarkation stations and alleyways, stairways and exits giving access to the muster and embarkation stations, and at each survival craft, its launching appliance, and the area of water into which the survival craft is to be launched; (L.N. 153 of 2001) (b) the general alarm, if electrically operated; (c) the ship's navigation lights if solely electric.(3) (a) In every such ship the emergency source of electrical power shall be either accumulator (storage) batteries capable of complying with the requirements of subregulation (2) without being recharged or suffering an excessive voltage drop or a generator driven by internal combustion type machinery with an independent fuel supply and with efficient starting arrangements and the fuel provided for such machinery shall have a flash point of not less than 43oC. (b) The emergency source of electrical power shall be so arranged that it will operate efficiently when the ship is listed 22 1/2 degrees and when the trim of the ship is 10 degrees from an even keel. |