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发表于 2017-7-5 09:34
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来自: 中国黑龙江大庆
本帖最后由 sanshandaobojue 于 2017-7-5 09:36 编辑
OCIMF是建议。船级社规范也是建议,DNVGL规范
The windlass with brakes engaged and release coupling disengaged shall be able to withstand a static pull of45% of the chain cable minimum breaking strength。
Each winch should be fitted with drum brakes the strength of which is sufficient to prevent unreeling of the mooring line when the rope tension is equal to 80% of the breaking strength of the rope as fitted on the first layer. Where this is achieved by the winch being fitted with a pawl and ratchet or other positive locking device, then the braking mechanism shall be such that the winch drum can be released in co***olded manner while the mooring line is under tension.For powered winches the maximum hauling tension which can be applied to the mooring line (the reeled first layer) should not be less than 1/4.5 times the rope's breaking strength and not more than 1/3 times the rope's breaking strength. For automatic winches these figures shall apply when the winch is set on the maximum power with automatic co***ol. The rendering tension which the winch can exert on the mooring line (reeled 1st layer) should not exceed 1.5 times, nor be lessthan 1.05 times the hauling tension for that particular power setting of the winch on automatic co***ol. The winch shall be markedwith the range of rope strength for which it is designed. |
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