A kind of multi-signal transmission marine control cable

Abstract

The invention provides a marine control cable for multi-signal transmission. The marine control cable for the multi-signal transmission comprises a central control conductor, a main communication conductor, auxiliary communication conductors, the central control conductor is located in the central section of the cable, the main communication conductor and the auxiliary communication conductors are attached to the central control conductor tightly and form a finished cable core in a twisting mode, the main communication conductor is arranged between any two adjacent auxiliary communication conductors, the finished cable core is wrapped by an antiflaming wrapping tape taped layer, a polyolefin inner jacket, a metal wire braided shielding layer and a polyolefin outer sheath in sequence, and waterproof ropes are arranged among the main communication conductor, the auxiliary communication conductors and the antiflaming wrapping tape taped layer. The marine control cable for the multi-signal transmission has the function of multi-signal transmission, when the main communication conductor is destroyed by fire, the auxiliary communication conductors can be started immediately, power-on time of an emergency power supply is prolonged, and safety of ships and crew on board is guaranteed effectively.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to a multi-signal transmission marine control cable. Background technique [0002] In recent years, my country's ship market demand has shown the characteristics of large tonnage, high technology content, and high added value. Correspondingly, the demand for ship cables has gradually increased and higher performance requirements have been put forward. In addition to the general properties of conventional control cables such as electrical insulation and anti-electromagnetic interference, it also needs to have excellent waterproof performance, weather resistance, heat resistance, low temperature resistance, and abrasion resistance. In addition, it also needs to have good mechanical properties. , to cope with the test of various external forces such as dragging, pulling, and impact. In addition, marine control cables also have flame-retardant and fire-resistant properties. [00...

AI Technical Summary

Problems solved by technology

Its disadvantage is that when a fire occurs, the performance of the cable to prevent the flame from spreading is not strong, and the flame is easy to spread to the insulation layer.

Great hidden danger to the safety of ships and personnel

For marine cables, the flame retardant performance is very high. When the cable is caught on fire, the ordinary structure of the cable cannot effectively prevent the flame from spreading.

At the same time, the smoke generated by the burning of the cable itself will also cause harm to the human body.

[0004] For the shipbuilding industry, once a fire occurs, the power supply circuits of the control, monitoring, guidance and alarm systems must maintain normal operation, and the fire-fighting equipment, fire alarm equipment, ventilation and smoke exhaust equipment, navigation lights, emergency power sockets, etc. must be kept under burning conditions. It can maintain the normal operation of the line for a period of time, but usually a control wire only has a set of communication wires, which cannot guarantee the long-term power supply of the emergency power supply, and cannot guarantee the safety of the ship and the personnel on board

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