CN205194386U - Fire -retardant armor shipboard cable of light - Google Patents

Abstract

The utility model designs a light-weight flame-retardant armored marine cable, which includes three groups of wire cores twisted in the shape of a square. The wire cores are distributed in double-layer halogen-free wrapping tapes. The gap between the tape and the wire core is filled with glass fiber bundle filler A, and the double-layer halogen-free wrapping tape is covered with an aluminum-magnesium alloy braided mesh armor skeleton compression layer, and the mesh armor The outermost layer of the skeleton compression layer is extruded with an outer sheath. The utility model realizes the light weight of the cable and enhances the high temperature resistance of the cable. The utility model provides a light-weight flame-retardant armored marine cable. This cable meets the requirements of the weight by optimizing the structure and combining the advantages and disadvantages of the plastic cable and the rubber cable. Lightweight, good high temperature resistance, oil resistance, mud resistance and flame retardancy. The aluminum-magnesium alloy wire used to make the armor layer has a small specific gravity, so the cable is light in weight; the double-layer halogen-free wrapping tape set between the cable core and the outer sheath has heat insulation and flame retardant functions, so the cable is resistant to high temperature Good performance.

Description

A Lightweight Flame Retardant Armored Marine Cable

Technical field:

The utility model relates to the field of cables, in particular to a light flame-retardant armored marine cable.

Background technique:

The manufacture of wire and cable is completely different from the production of most electromechanical products. Mechanical and electrical products are usually assembled into components, and multiple components are assembled into a single product, and the product is measured by the number of units or pieces. Wire and cable are based on length as the basic unit of measurement. All wires and cables start from conductor processing, and then add insulation, shielding, cabling, sheathing, etc. layer by layer on the periphery of the conductor to make wire and cable products. The more complex the product structure, the more layers are superimposed. With the rapid development of power cable buried laying projects, higher requirements are put forward for cable protection. The cable protection sleeve is made of polyethylene PE and high-quality steel pipes, which are pre-treated by sandblasting and shot blasting, impregnated with plastic or coated, and heated and cured. Craft made. It is the most commonly used electrical insulating tube for protecting wires and cables. It is widely used because of its good insulation performance, high chemical stability, no rust, no aging, and adaptability to harsh environments.

In order to adapt to the needs of the sea climate and working environment, the existing marine cables generally adopt steel wire or copper wire braid as the armor layer of the cable to improve the strength of the cable. The problems brought by this are that the outer diameter of the cable is large, the weight is heavy, and the load of the ship increases greatly.

The existing ship cables can be divided into two types according to the materials used for their insulation and sheath. One is a cable with both insulation and sheath made of rubber (hereinafter referred to as rubber cable), and the other is a cable with both insulation and sheath. Plastic cables (hereinafter referred to as plastic cables). Both have their own characteristics. The rubber cable has the characteristics of softness and good performance, so it is suitable for frequent movement on the ship, while the plastic cable is used as a fixed cable on the ship and rarely moves.

Utility model content:

In order to solve the above problems, the utility model provides a technical solution for lightening the cable and enhancing the high temperature resistance of the cable according to the application in the special environment of the ship and the resistance to flame retardancy, oil resistance and mud resistance in use:

A light-weight flame-retardant armored marine cable, including three sets of wire cores twisted in a square shape, the wire cores are distributed in the double-layer halogen-free wrapping tape, and the gap between the double-layer halogen-free wrapping tape and the wire core The inside is filled with glass fiber bundle filler, the double-layer halogen-free wrapping tape is covered with an aluminum-magnesium alloy braided mesh armor skeleton compression layer, and the outermost layer of the mesh armor skeleton compression layer is extruded with an outer jacket.

Preferably, the wire core is composed of a stranded tinned copper conductor and a low-smoke halogen-free ethylene-propylene rubber insulating layer covering the conductor.

Preferably, the spaces between the conductors contain glass fiber bundle fillers.

Preferably, the outer sheath is a lightweight cross-linked polyolefin sheath.

The beneficial effects of the utility model are:

(1) The utility model realizes the light weight of the cable and enhances the high temperature resistance of the cable. The utility model provides a light-weight flame-retardant armored marine cable. This cable is optimized by combining the advantages and disadvantages of plastic cables and rubber cables. It satisfies light weight, good high temperature resistance, oil resistance, mud resistance and flame retardancy at the same time.

(2) The specific gravity of the aluminum-magnesium alloy wire used to make the armor layer in this utility model is small, so the cable is light in weight; the double-layer halogen-free wrapping tape set between the cable core and the outer sheath has heat insulation and flame retardant properties. Function, therefore, the cable has good high temperature resistance.

(3) In the utility model, both the outer sheath and the glass fiber bundle filling are made of low-smoke, halogen-free materials, so the cable does not contain halogen, and the amount of smoke generated during combustion is low. At the same time, the outer sheath adopts cross-linked polyolefin lightweight sheath, which is lighter in weight and achieves oil resistance, mud resistance and flame retardancy.

(4) The insulating layer and the outer sheath of the utility model are made of two different materials, organically combining the advantages of rubber and plastic, and solving the problem of incompatibility between softness and light weight.

(5) In the utility model, a light-weight aluminum-magnesium alloy is used to weave a mesh-like skeleton compression layer to enhance the overall compression resistance of the cable.

Description of drawings:

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

detailed description:

In order to make the purpose, technical solution and advantages of the utility model clearer, the implementation of the utility model will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, the utility model designs a light-weight flame-retardant armored marine cable, which includes three sets of cores 1 twisted in the shape of a square, and the cores 1 are distributed in double-layer halogen-free wrapping tapes 2. The gap between the double-layer halogen-free wrapping tape 2 and the wire core 1 is filled with glass fiber bundle filler 3, and the double-layer halogen-free wrapping tape 2 is covered with an aluminum-magnesium alloy braided mesh armor skeleton to withstand compression Layer 4, the outermost layer of the mesh armor skeleton compression layer 4 is extruded with an outer sheath 5 . Its structure effectively realizes the light weight of the cable and enhances the high temperature resistance of the cable. The utility model provides a light-weight flame-retardant armored marine cable. This cable meets the requirements of the cable by optimizing its structure and combining the advantages and disadvantages of plastic cables and rubber cables. Light weight, good high temperature resistance, oil resistance, mud resistance and flame retardancy. In the utility model, the specific gravity of the aluminum-magnesium alloy wire used to make the armor layer is small, so the cable is light in weight; the double-layer halogen-free wrapping tape set between the cable core and the outer sheath has functions of heat insulation and flame retardancy, therefore, The cable has good high temperature resistance.

The wire core 1 is composed of a stranded tinned copper conductor 1a and an insulating layer 1b of low-smoke halogen-free ethylene-propylene rubber covering the conductor 1a. The space between the conductors 1a contains a filler 3 of glass fiber bundles. At the same time, the outer sheath 5 is a cross-linked polyolefin lightweight sheath. The outer sheath 5, the glass fiber bundle filler A and the glass fiber bundle filler 3 are all made of low-smoke, halogen-free materials. Therefore, the cable does not contain halogen, and the amount of smoke generated during combustion is low. At the same time, the outer sheath 5 adopts a cross-linked polyolefin lightweight sheath, which is lighter in weight and achieves oil resistance, mud resistance and flame retardancy. Moreover, the insulating layer 1b and the outer sheath 5 are made of two different materials, organically combining the advantages of rubber and plastic, and solving the problem of incompatibility between flexibility and light weight. Secondly, the anti-compression layer of the skeleton is woven into a net shape by lightweight aluminum-magnesium alloy to enhance the overall anti-compression performance of the cable.

The above-described embodiments are only preferred embodiments of the present utility model, and are not limitations to the technical solutions of the present utility model. As long as the technical solutions that can be realized on the basis of the above-mentioned embodiments without creative work, all should be regarded as falling into the scope of this invention. within the protection scope of utility model patents.

Claims (4)

1. a light flame-retardant armoured cable for ship, it is characterized in that: comprise three groups of cores twisted with the fingers mutually in isosceles triangle, described core is distributed in double-deck Halogen twining package tape, glass fiber bundle filler is filled with in space between described double-deck Halogen twining package tape and core, be covered with almag braiding outside described double-deck Halogen twining package tape and form netted armored skeleton resistance to compression layer, the outermost layer of netted armored skeleton resistance to compression layer is extruded with oversheath.

2. a kind of light flame-retardant armoured cable for ship according to claim 1, is characterized in that: described core is made up of stranded tinned copper conductor and the ethylene propylene rubber insulated layer of low smoke and zero halogen be coated on conductor.

3. a kind of light flame-retardant armoured cable for ship according to claim 2, is characterized in that: between described conductor, glass fiber bundle filler is contained in space.

4. a kind of light flame-retardant armoured cable for ship according to claim 1, is characterized in that: described oversheath is cross-linked polyolefin lightweight sheath.