CN202758635U - Fireproof control cable - Google Patents

Abstract

The utility model discloses a fire-resistant control cable, which includes a cable core. The cable core includes a plurality of circularly arranged conductors. Insulation layer is wrapped in order from the inside to the outside, and the outside of the conductor with a separate refractory layer is wrapped with a wrapping layer, a first refractory layer, a shielding layer, a second refractory layer, and an outer sheath from the inside to the outside. Ground wire. The utility model has a simple structure and is convenient to manufacture. It adopts a separate fire-resistant layer and the first and second fire-resistant layers to perform triple protection, strengthen the fire resistance of the cable, and add a grounding wire to increase the safety of the cable.

Description

Fire-resistant control cable

technical field

The utility model mainly relates to the field of cables, in particular to a fire-resistant control cable. the

Background technique

At present, with the development of society, the power consumption on the ship is also increasing, the current carrying capacity of the cable is required to be larger and larger, the interface of the cable conductor of the cable is constantly increasing, and the weight of the cable per unit length increases accordingly. . When the staff is laying cables, it is easy to scratch the outer sheath during the laying process, thereby leaving hidden dangers to safety and causing accidents. In the prior art, most of the insulating layer and the sheath of the cable are organic mixtures of plastic and rubber, and they generally have poor wear resistance. the

In the event of a fire, the flame will spread with the cable, and at the same time, a large amount of smoke and toxic corrosive gas will be produced, which will be harmful to the human body. In order to reduce the speed of spreading along the cable when the flame burns, various flame retardant additives are usually added to the cable material to make various types of flame retardant materials and flame retardant cables. Therefore, flame retardancy, corrosion, smoke, and toxicity are generally used to evaluate the performance of power cables when they burn. The general fire-resistant cable also needs to determine its fire resistance. the

Utility model content

The purpose of the utility model is to provide a fire-resistant control cable in order to remedy the defects of the prior art. the

The utility model is achieved through the following technical solutions:

The fire-resistant control cable includes a cable core, which is characterized in that: the cable core includes a plurality of conductors arranged in a ring, and the outer side of each conductor is sequentially wrapped with an insulating layer and a separate fire-resistant layer from the inside to the outside. The plurality of conductors that are wrapped with insulating layers from the inside to the outside, and the conductors with a single refractory layer are wrapped with the wrapping layer, the first refractory layer, the shielding layer, the second refractory layer, and the outer sheath from the inside to the outside in sequence, so A grounding wire is provided on the inner side of the above-mentioned wrapping layer. the

The shielding layer adopts braided copper wire shielding. the

The conductor is tinned copper wire. the

The utility model has the advantages of:

The utility model has a simple structure and is convenient to manufacture. It adopts a separate fire-resistant layer and the first and second fire-resistant layers to perform triple protection, strengthen the fire resistance of the cable, and add a grounding wire to increase the safety of the cable. the

Description of drawings

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

Detailed ways

As shown in Figure 1, the fire-resistant control cable includes a cable core. The cable core includes seven conductors 1 arranged in a ring. The seven conductors 1 are wrapped with an insulating layer 2 and a separate refractory layer 3 from the inside to the outside. The sheath 8 is provided with a ground wire 9 around the inner side of the cladding 4 . the

The shielding layer 6 is braided with copper wire for shielding. the

Conductor 1 is tinned copper wire. the

Claims (3)

1. fireproof control cable, include cable core, it is characterized in that: described cable core includes the conductor of many circular array, the outside of described every conductor is enclosed with insulating barrier, independent flame retardant coating from inside to outside successively, the described many conductor outsides that are enclosed with successively from inside to outside insulating barrier, independent flame retardant coating are enclosed with lapping layer, the first flame retardant coating, screen, the second flame retardant coating, outer jacket from inside to outside successively, and described lapping layer inboard is provided with an earth connection.

2. fireproof control cable according to claim 1 is characterized in that: the shielding of described screen employing proof copper-wire braided.

3. fireproof control cable according to claim 1 is characterized in that: described conductor employing tinned copper wire.

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