CN202205499U - Flame-proof high-temperature resistant ship-used power cable - Google Patents

Abstract

The utility model discloses a flame-retardant high-temperature-resistant marine power cable, which comprises four alloy conductors, the four alloy conductors are respectively wrapped with a refractory layer and an insulating layer, and the four conductors wrapped with the insulating layer are twisted around the filling rope as the center. Synthetic bundle, the filling rope is wrapped with a fireproof layer, the fireproof layer is made of double-layer synthetic mica tape wrapping, the wrapping coverage is not less than 30%, the outside of the bundle is wrapped with a tape layer in turn, the inner sheath layer, armor The armor layer, the outer sheath layer, and the armor layer are made of tinned copper wire braid, and the braid density is not less than 86%. The utility model has a novel structure, and the filling rope in the center of the conductor is wrapped with a fireproof layer, and double-layer mica tapes are used to overlap and wrap, which improves the fireproof characteristics of the cable. In addition, the cable has good mechanical strength, which fully ensures the signal of the cable Transmission stability.

Description

A flame retardant high temperature resistant marine power cable

Technical field:

The utility model relates to the field of power cables, in particular to a flame-retardant high-temperature-resistant marine power cable.

Background technique:

As the name implies, the fire-resistant cable means that under a certain flame temperature and burning conditions, the cable can normally transmit electric energy, transmit various control signals, and alarm signals within a certain period of time, so that lighting, fire alarm devices and other emergency equipment can continue to operate within a certain period of time. Power on, so that the rescue work can be carried out normally. Because the fire-resistant cable has good flame retardancy, it plays an important role in fire protection and is very popular among users.

The cable is composed of a conductor, an insulating layer and a sheath layer, and is an electrical product used to transmit electric energy, transmit information and realize electromagnetic energy conversion. Cables are widely used in power systems, coal mines, industrial and agricultural production, and people's daily life. They can run safely under certain working conditions, but they will It will cause the insulation resistance of the insulating material to decrease, lose its insulation ability, or even burn, which will cause fire and explosion accidents.

In recent years, the construction scale of coal mines, factories, buildings and equipment has become larger and larger, and the cables required are also increasing. Since cables are usually laid in a concentrated manner, once a fire breaks out, the flame will spread along the cable channel, causing the fire to expand rapidly. At the same time, the side effects brought by a fire, such as casualties, toxicity of burning smoke, and environmental pollution, sometimes cause more significant losses than the fire itself. Therefore, the selection of low-smoke halogen-free refractory cables has attracted more and more attention from all over the world.

The original flame-retardant cable itself has relatively poor fireproof characteristics and cannot meet the needs of the actual working environment, resulting in unstable or even interrupted signal transmission during the working process, which seriously affects production and causes major losses.

Utility model content:

In view of the problems existing in the prior art, the purpose of this utility model is to provide a flame-retardant high-temperature-resistant marine power cable, which solves the defect that the flame-retardant characteristics of the marine cable are relatively poor in the actual working environment, and ensures signal transmission. stability.

The technical scheme of the present utility model is as follows:

The flame-retardant high-temperature-resistant marine power cable includes four alloy conductors, which are characterized in that: the four alloy conductors are respectively wrapped with a refractory layer and an insulating layer, and the four conductors wrapped with the insulating layer are twisted into bundles around the center of the filling rope. The filling rope is wrapped with a fireproof layer. The fireproof layer is made of double-layer synthetic mica tape wrapping, and the wrapping coverage is not less than 30%. Outer sheath.

The flame-retardant high-temperature-resistant marine power cable is characterized in that: the armor layer is braided by tinned copper wires, and the braiding density is not less than 86%.

The utility model has the advantages of:

The utility model has a novel structure, and the filling rope in the center of the conductor is wrapped with a fireproof layer, and double-layer mica tapes are used to overlap and wrap, which improves the fireproof characteristics of the cable. In addition, the cable has good mechanical strength, which fully ensures the signal of the cable Transmission stability.

Description of drawings:

Fig. 1 is the structural representation of the utility model.

Detailed ways:

Flame-retardant high-temperature-resistant marine power cable, including four alloy conductors 1, the four alloy conductors 1 are respectively wrapped with a refractory layer 2 and an insulating layer 3, and the four conductors 1 wrapped with the insulating layer 3 are twisted around the filling rope 4 as the center Synthetic bundle, the filling rope 4 is wrapped with a fireproof layer 5, and the fireproof layer 5 is made of double-layer synthetic mica tape wrapping, and the wrapping coverage is not less than 30%, which improves the fireproof characteristics of the cable and the cable also has good mechanical strength. The stability of the signal transmission of the cable is fully guaranteed, and the outside of the bundle is respectively wrapped with a tape layer 6, an inner sheath layer 7, an armor layer 8, an outer sheath layer 9, and the armor layer 9 is made of tinned copper wire Woven composition, the weaving density is not less than 86%.

Claims (2)

1. A flame-retardant high-temperature-resistant marine power cable, including four alloy conductors, characterized in that: the four alloy conductors are respectively wrapped with a refractory layer and an insulating layer, and the four conductors wrapped around the insulating layer are centered around the filling rope Twisted into bundles, the filling rope is wrapped with a fireproof layer. The fireproof layer is made of double-layer synthetic mica tape wrapping, and the wrapping coverage is not less than 30%. Armor layer, outer sheath layer. 2. The flame-retardant high-temperature-resistant marine power cable according to claim 1, wherein the armor layer is braided by tinned copper wires, and the braiding density is not less than 86%.

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