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发表于 2020-4-18 22:06
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来自： 中国浙江宁波
Ventilation of emergency generator rooms
1. Introduction
Emergency generator rooms are provided with ventilation openings for the admission of
combustion air to engines and the removal of heat. These openings are usually provided with
louvers which can be closed (when fire breaks out in emergency generator rooms). The
louvers may be hand-operated or power-operated. Alternatively, the louvers may be of fixed
type with a closing door which may be hand-operated or automatic.
2. Requirements
The following requirements apply to ventilation louvers for emergency generator rooms and to
closing appliances where fitted to ventilators serving emergency generator rooms:
2.1 Ventilation louvers and closing appliances may either be hand-operated or power-
operated (hydraulic / pneumatic / electric) and are to be operable under a fire condition.
2.2 Hand-operated ventilation louvers and closing appliances are to be kept open during
normal operation of the vessel. Corresponding instruction plates are to be provided at the
location where hand-operation is provided.
2.3 Power-operated ventilation louvers and closing appliances shall be of a fail-to-open
type. Closed ventilation louvers and closing appliances are acceptable during normal
operation of the vessel.
Power-operated ventilation louvers and closing appliances shall open automatically whenever
the emergency generator is starting / in operation.
2.4 It shall be possible to close ventilation openings by a manual operation from a clearly
marked safe position outside the space where the closing operation can be easily confirmed.
The louver status (open / closed) shall be indicated at this position. Such closing shall not be
possible from any other remote position. |
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