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发表于 2016-9-27 09:50
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来自: 中国湖北武汉
首先这条规范适用于客船。94年后建的客船,3.1.2不适用了,但需满足3.1.3,要求加另一套过渡蓄电电池电源,蓄电电池的要求见4.
Regulation 42 Emergency source of electrical power in passenger ships
3 The emergency source of electrical power may be either a generator or an accumulator battery, which shall comply with the following: 3.1 Where the emergency source of electrical power is a generator, it shall be: .1 driven by a suitable prime mover with an independent supply of fuel having a flashpoint (closed cup test) of not less than 43°C; .2 started automatically upon failure of the electrical supply from the main source of electrical power and shall be automatically connected to the emergency switchboard; those services referred to in paragraph 4 shall then be transferred automatically to the emergency generating set. The automatic starting system and the characteristic of the prime mover shall be such as to permit the emergency generator to carry its full rated load as quickly as is safe and practicable, subject to a maximum of 45 s; unless a second independent means of starting the emergency generating set is provided, the single source of stored energy shall be protected to preclude its complete depletion by the automatic starting system; and .3 provided with a transitional source of emergency electrical power according to paragraph 4. 3.2 Where the emergency source of electrical power is an accumulator battery, it shall be capable of: .1 carrying the emergency electrical load without recharging while maintaining the voltage of the battery throughout the discharge period within 12% above or below its nominal voltage; .2 automatically connecting to the emergency switchboard in the event of failure of the main source of electrical power; and .3 immediately supplying at least those services specified in paragraph 4. 3.3 The following provisions in paragraph 3.1.2 shall not apply to ships constructed on or after 1 October 1994: Unless a second independent means of starting the emergency generating set is provided, the single source of stored energy shall be protected to preclude its complete depletion by the automatic starting system.
4.The transitional source of emergency electrical power required by paragraph 3.1.3 shall consist of an accumulator battery suitably located for use in an emergency which shall operate without recharging while maintaining the voltage of the battery throughout the discharge period within 12% above or below its nominal voltage and be of sufficient capacity and so arranged as to supply automatically in the event of failure of either the main or emergency source of electrical power at least the following services, if they depend upon an electrical source for their operation:
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