CN202102795U - Silicon rubber insulated-sheathed power cable fine in property - Google Patents

Abstract

The utility model discloses a silicon rubber insulated silicon rubber sheathed power cable with good performance, which comprises a wire core group composed of a plurality of wire cores, and each wire core is sequentially composed of a wire core conductor and an insulating layer from the inside to the outside. , the periphery of the core group is provided with a non-woven inner lining, the outer periphery of the non-woven inner lining is provided with a silicone rubber inner sheath, and the outer periphery of the inner sheath is provided with a metal wire braided armor, and the metal wire braided The armored surface is provided with a silicone rubber outer sheath. Since the insulation layer, inner sheath and outer sheath are made of silicone rubber, it not only improves the insulation performance, but also greatly improves the mildew resistance of the cable, thereby prolonging the service life of the cable, and is very suitable for working in tropical or humid tropical environments; Due to the structural form of wire braided armor, not only the tensile capacity of the cable is improved, but also the function of electromagnetic shielding; the utility model also has the characteristics of flame retardancy, radiation resistance, high temperature resistance and oil resistance.

Description

Good performance silicone rubber insulated silicone rubber sheathed power cable

technical field

The utility model relates to a cable, in particular to a silicon rubber insulated silicon rubber sheathed power cable.

Background technique

However, there is currently no unified technical specification for special cables with a large quantity and a wide range. Each company operates independently, and the structural size requirements, materials and requirements, voltage levels, operating environment temperature, specification cross-section, and application occasions of the manufactured cables are all different. It is not uniform and very irregular, which brings a lot of trouble to users' selection and use, and because there are no national and industry standards, product requirements are not standardized, and product quality is uneven, these cables have no market supervision to follow, and a large number of unqualified or inferior Cables are flooding the market, which not only brings unnecessary economic losses to users, but also brings great hidden dangers to the safe operation of equipment using cables, seriously threatening the normal operation of electrical control equipment, power systems, and the safety of personal and property.

At present, many cables have poor mildew resistance and cannot adapt to the working environment in tropical or humid tropical regions, which seriously affects the service life of cables.

Utility model content

In order to overcome the above disadvantages, the purpose of this utility model is to provide a silicon rubber insulated and sheathed power cable with good radiation resistance and high temperature resistance.

In order to achieve the above object, the utility model adopts the following technical solutions:

Silicon rubber insulated and silicone rubber sheathed power cables with good performance include a core group composed of multiple cores. Each core is composed of a core conductor and an insulating layer from the inside to the outside. The periphery of the core group It is provided with a non-woven inner lining, and the outer periphery of the non-woven inner lining is provided with a silicone rubber inner sheath, and the outer periphery of the inner sheath is provided with wire braided armor, and the surface of the metal wire braided armor is provided with silicon Rubber outer sheath; the metal wires in the wire braided armor are galvanized steel wires or copper wires or tinned copper wires, aluminum wires or aluminum alloy wires.

The insulating layer is formed by extruding silicon rubber material.

A filler is provided between the plurality of wire cores, and the filler is a non-hygroscopic material that does not adhere to the insulation layer of the wire cores.

There are five wire cores, and the five wire cores are composed of three large circular cores and two small circular cores.

Beneficial effects of the utility model: Since the insulating layer, the inner sheath and the outer sheath are made of silicon rubber material, not only the insulation performance is improved, but also the anti-mold performance of the cable is greatly improved, thereby prolonging the service life of the cable, which is very suitable for tropical or humid tropical working environment; due to the use of metal wire braided armor structure, not only the tensile capacity of the cable is improved, but also has the function of electromagnetic shielding; the utility model also has flame retardant, radiation resistance, high temperature resistance and Oil resistance and other properties.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail.

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

In the figure: 1. Core conductor; 2. Insulation layer; 3. Filler; 4. Non-woven inner lining; 5. Small round core; 6. Inner sheath; 7. Large round core; 8. Wire braided armor; 9. Outer sheath.

Detailed ways

As shown in Figure 1, the silicone rubber insulated and sheathed power cable with good performance includes a core group composed of three large circular cores 7 and two small circular cores 5, and each core is from the inner to the outer core. The outer layer is composed of a core conductor 1 and an insulating layer 2 in turn. The core group is provided with a non-woven inner lining layer 4 on the periphery, and a silicone rubber inner sheath 6 is arranged on the outer periphery of the non-woven inner lining layer 4. The inner sheath The periphery of the cover 6 is provided with wire braided armor 8, and the surface of the wire braided armor 8 is provided with a silicon rubber outer sheath 9; the metal wires in the wire braided armor 9 are galvanized steel wire or copper wire. wire or tinned copper wire, aluminum wire or aluminum alloy wire. The insulating layer 2 is formed by extruding silicon rubber material.

A filler 3 is provided between the five wire cores, and the filler 3 is a non-hygroscopic material that does not adhere to the insulating layer of the wire cores.

The utility model is suitable for the silicon rubber insulated silicon rubber sheathed power cable with a rated voltage of 0.6/1kV and below used in high temperature environments. The so-called rated voltage of the cable is the reference voltage for cable design, use and electrical performance test. The rated voltage is represented by U0/U. U0 represents the effective value of voltage between any main insulated conductor and "ground" (metal shield, metal sheath or surrounding medium); U is the effective value of voltage between any two-phase conductors of a multi-core cable or single-core cable system. In an AC system, the rated voltage of the cable should be at least equal to the nominal voltage of the system using the cable, and this condition applies to both U0 and U values; in a DC system, the standard voltage of the system should not be greater than 1.5 times the rated voltage of the cable . The working voltage of the system is allowed to exceed 10% of the nominal voltage of the system for a long time. If the rated voltage of the cable is at least equal to the nominal voltage of the system, the cable can be used at a working voltage 10% higher than the rated voltage.

The utility model has the following characteristics:

1) High heat resistance and excellent cold resistance, the long-term working temperature can reach -90℃～250℃.

It can be used continuously for 10-20 years at 120°C; it can be used continuously for 5-10 years at 150°C;

It can be used continuously for 2-5 years at 205°C.

2) Excellent electrical insulation properties: good corona resistance and arc resistance properties.

3) Excellent resistance to ozone aging, oxygen aging, light aging and atmospheric aging.

4) Good thermal conductivity, twice that of ordinary rubber, which can increase the current carrying capacity of wires and cables.

5) Excellent water absorption and mildew resistance, suitable for tropical and humid tropical use

6) It has the characteristics of flame retardancy, radiation resistance and oil resistance.

Claims (4)

1. A silicone rubber insulated silicone rubber sheathed power cable with good performance, including a core group composed of multiple cores, each core is composed of a core conductor and an insulating layer from the inside to the outside, and its characteristics In that: the core group is provided with a non-woven inner lining on the periphery, a silicone rubber inner sheath is arranged on the outer periphery of the non-woven inner lining, and a metal wire braided armor is arranged on the outer periphery of the inner sheath, and the metal wire The surface of the braided armor is provided with a silicone rubber outer sheath; the metal wires in the wire braided armor are galvanized steel wires or copper wires or tinned copper wires, aluminum wires or aluminum alloy wires. 2. The silicone rubber insulated and sheathed power cable with good performance according to claim 1, characterized in that: the insulating layer is made of extruded silicone rubber material. 3. The silicone rubber insulated and sheathed power cable with good performance according to claim 1, characterized in that: fillers are provided between the plurality of wire cores, and the fillers are non-stick materials that do not adhere to the insulation layer of the wire cores. Hygroscopic material. 4. The silicone rubber insulated and sheathed power cable with good performance according to claim 1, characterized in that: there are five cores, and the five cores are composed of three large circular cores and two Consists of a small circular core.

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