How Marine cable procurement: & have spent
(1) the choice of materials.
The same thickness of the cable under tensile and wear resistance is small, the cause of this situation is the different material, such as simply improve the tension of the cable can choose polypropylene filament material of the cable, if you worry about rope drag and drop on the deck when the excessive wear, need to add a layer on the outside of the cable of the polyester layer increased wear resistance, 'polyester multifilament' structure is adopted,
Internal is sustain tension polypropylene filament, external is to increase wear resistance of polyester package)
In this process and can increase the service life of the cable material, usually can increase 1 year.
(2) the brand and the selection of classification survey certificate.
Cable is an important safety equipment on board, the international maritime organisation for the supply of Marine cable requirements: must have a certificate of classification society, that is, on the shore personnel (
Usually refers to the crew)
At the time of purchase the cable, must pay attention to the classification society certificate issued by cable manufacturers.
Outside, buying cable brand is also very important, choose a cable manufacturer with a long history is very important to use safety and service life of the rope, small factory production of cable quality closes nevertheless, cut corners on raw material, craft in behind, such cable using hidden trouble on the ship is too big.
Unexpected rupture, besides may cause the ship and terminal berth collision, also is likely to cause casualties.
So, it is important to the quality of the cable.
Correct operating cable not only can ensure the safety of the operation sailors and ship vice, also can extend the service life of the rope.
(1) head (
And the second officer (
At the time of operation stir cable car note.
The practice proved: the cable fracture is mainly due to the continuous impact load.
For this reason, stir the cable car to operating personnel, must be skilled operation, try to reduce the impact load to the cable, reduce cable fault causes for this reason.
(2) with LAN personnel must be familiar with oneself will operate the types and characteristics of the cable, targeted operation, such as synthetic fiber rope before fracture will not make a sound, there are no signs can be very intuitive to see, if you made this cable in the cable force, must have good mastering a pull rope bearable, prevent sudden rupture.
(3) listed with sailors and ship must wear safety helmet, gloves, safety shoes, work clothes.
'Should never be allowed to wear slippers and shorts, with listed to bring' a lot of boat of individual ship and sailors do not pay attention to the protection of their own, once appear accidental, cable rupture, huge function in the fracture of the cable head cable rupture strength, speed, threaten their safety.
(4) before use, first mate (
Or the second officer (
Carefully check the cable in good condition, a rope to certain parts of the broken ends of excessive wear or large, timely replacement cable, can not afford time to change the process of using try not to let this cable tensile strength of the bear is too big, to prevent sudden rupture.
5. Position requirements: the position of personnel and outboard of the cable with cable section;
All personnel shall not stand in the rope ring;
All personnel shall not stand in the 'rebound' area of the cable.
Listed with 6 LAN personnel must be familiar with the operation involved in the process of gestures and sign language, such as: put, closed, stop, stop, etc.
The operation of the cable correctly, can have a safe work environment, only observe operating instructions and can safely tied ship safely on the dock.