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[接上页] (Enacted 1991) Cap 369AJ reg 6 Provision of electrical energy (1) There shall be provided in every ship at all times while the ship is at sea and at all reasonable times when she is in port, a supply of electrical energy suitable and sufficient for the operation of the navigational equipment installations required by these regulations, for testing purposes and for the charging of any rechargeable batteries which are a source of electrical energy for the navigational equipment installations. (2) The supply of electrical energy shall not exceed the limits set out below- AC supplies: variation from nominal voltage of +/- 10% variation from nominal frequency of +/- 6% DC supplies: variation from nominal voltage : 110/220V supplies, + 10%, - 20% 24/32V supplies, + 30%, - 10%(3) Readily accessible means shall be provided for isolating each navigational equipment installation from its source of electrical energy without causing any interruption to, or adversely affecting, the supply of electrical energy to any other equipment. (4) Where a ship is required to be provided with 2 radar installations- (a) they shall be so installed that failure of either radar installation shall not cause the supply of electrical energy to the other radar installation to be interrupted or adversely affected; and (b) on ships constructed on or after 25 May 1982, both radar installations shall be capable of being operated one at a time, from the ship's emergency source of electrical energy, if provided. (Enacted 1991) Cap 369AJ reg 7 Charging of batteries (1) If rechargeable batteries are provided on a ship as a source of electrical energy for any part of the navigational equipment installations, adequate means shall be provided on board the ship for the charging of such batteries from the ship's main source of electrical energy. (2) Any such battery when not in use shall be capable of being fully charged within a period of not more than 16 hours by the means of charging required by subregulation (1). (3) When any such battery is float-charged whilst in use, the voltage used for charging the battery shall be within the limits set out in regulation 6(2). (4) If any navigational installation derives electrical energy for internal circuits from non-rechargeable batteries, failure of such batteries, where practicable, shall not cause malfunction of the installation. Where this is not practicable, the installation shall be provided with means to test the condition of such batteries. (Enacted 1991) Cap 369AJ reg 8 Servicing and operating information Adequate information and instructions as to the use and maintenance of every navigational equipment installation required by these regulations shall be provided by the owner and shall be available at all times for use when the particular installation is being operated, tested or serviced. In Hong Kong ships such information and instructions shall be in English. (Enacted 1991) Cap 369AJ reg 9 Spares and tools For each navigational equipment installation required by these regulations there shall be supplied such special tools and equipment as are necessary for shipboard maintenance and such spares as are likely to be required for the duration of the intended voyage. (Enacted 1991) Cap 369AJ reg 10 Magnetic compass performance standards PART I MAGNETIC COMPASS INSTALLATION Every magnetic compass installation required to be provided shall comply with the performance standards adopted by the Organization. (Enacted 1991) Cap 369AJ reg 11 The magnetic compass installation The magnetic compass installation on a ship shall comprise- (a) a standard magnetic compass, fitted on the centre line of the ship and mounted in a binnacle; (b) a steering magnetic compass, fitted on the centre line of the ship and mounted in a binnacle, unless heading information provided by the standard compass required under paragraph (a) is made available and is clearly readable by the helmsman at the main steering position; (c) adequate means of communication between the standard compass position and the normal navigation control position; and (d) means for taking bearings as nearly as practicable over an arc of the horizon of 360 degrees. (Enacted 1991) Cap 369AJ reg 12 Adjustment of magnetic compasses Each of the magnetic compasses referred to in regulation 11 shall be properly adjusted and its table or curve of residual deviations shall be available at all times. (Enacted 1991) Cap 369AJ reg 13 Spare magnetic compass A spare magnetic compass, interchangeable with the standard compass, shall be carried in every ship of 150 tons and over to which these regulations apply, unless a steering compass mentioned in regulation 11 (b) is fitted or, in the case of a ship which is not a Hong Kong ship, a gyro compass is fitted. (Enacted 1991) Cap 369AJ reg 14 Emergency steering position (1) Where a ship of 150 tons and over is provided with an emergency steering position, it shall at least be provided with a telephone or other means of communication for relaying heading information to such position. |