CN2655388Y - Flame-resistance wear-proof woven protective layer insulative cable - Google Patents

Abstract

The utility model belongs to a cable product in the electric apparatus art, which is mainly used for a mine hill and mine coal underground. The utility model solves the deficits that the original product has low burn resistance and abrasion strength, is big and heavy, and is not convenient for being equipped and used, each component element of the product adopt inflammable materials, an outer protection jacket adopts high strength heat resistance fibers for knitting and is coated with burn resistance pitch to form a protection jacket, a conductive body adopts tin and copper coating single wires, the windings all adopt windings in the same direction, a control wire core also adopts the tin and copper coating single wire, the outer of the product is knitted and coated with a layer of heat resistance fiber coated with the burn resistance pitch, inflammable fibers are stuffed between wire cores, which are winded by burn resistance wires then the heat resistance fiber dipped with the burn resistance pitch is knitted by one to two layers. The utility model has the main advantages that compared with the original equal cable product, the product has small volume, light weigh, strong soft property, small curving radium, convenient and quick arraying, equipment and moving, has high strength, strong anti-punching, anti-pressing and abrasion resistance, anti-aging, anti moisture, anti animal biting of a white ant, a mouse and the like.

Description

Flame-proof abrasion-resistant woven protective layer insulated cable

One, technical field:

The utility model belongs to electrical equipment cable product in the electric wire of appliance field, is mainly used under mine, the inferior environment harsh conditions of mine down-hole, especially coal mine safe in utilization.

Two, technical background:

For a long time, the mine, the mine down-hole, especially the inferior digging trade power consumption of coal mine line cable is in order to ensure safety (mainly preventing gas explosion), almost all employing is fire-retardant makes with the fire safe type material, physical dimension deviation to electric wire requires especially strict in addition, so that ensure that under the prerequisite of conveniently laying the cable seal performance of installing reaches the technical stipulation of explosion-proof or flame proof, simultaneously, in order to prevent owing to stone, the impact of hard objects such as coal cinder causes power supply to open circuit and makes the work system paralysis, all requires employed electric wire that certain shock resistance and extrusion capability are arranged.

The insulation and the sheath of at present traditional fire-retardant or fire-resisting cable product are to make with fire-retardant or fire-resistant rubber-plastics material (promptly adding fire retardant in common plastics or elastomeric material), for reaching and satisfying technical requirement on design, guarantee and increase its shock resistance, extrusion capability, general thickness is all bigger, and for preventing that cable from suffering that stone drops or opening circuit or damaging appears in the impact of sharp device, again at insulating barrier outside wrapped to two-layer steel band or steel wire to gain in strength, like this, the sectional area of cable and bending radius will increase, weight increases, give and install, lay and move all brought in the many inconvenience, particularly narrow space difficult especially; Simultaneously, cable in actual use, because subsurface environment is bad, there was dampness in the air, PVC that its impact resistance is relatively poor and rubber sheath time not length in various degree scuffing and damaged cracking will appear, its intensity reduces greatly after being exposed to airborne steel band and suffering wear oxidation, has brought for the normal production operation in down-hole and causes fail safe hidden danger.

Three, summary of the invention:

The purpose of this utility model provides flame-proof abrasion-resistant woven protective layer insulated cable.Solve the defective that lower, the thick heavy inconvenience of original cable-flame retardant scuff resistance is installed and used.The architectural feature of this product is that each element all adopts non-combustible material to form, and particularly oversheath adopts high-intensity fire-resistant carbon fiber knit and dip-coating flame retardant paint to constitute thin sheath; Adopt the tin-coated copper single line on conductor, in case the oxidation of principal vertical line core is adopted whole equidirectional strand systems on the strand system, the control core also adopts the tin-coated copper single line.Under over-all properties meets technical request, can reach the material that both economized on resources, reduce physical dimension again, the conductor wire conductor, core and control line conductor insulation aspect, the employing temperature resistant grade reaches the flame-retardant insulating material more than 200 ℃, and high-intensity through the fire-resistant carbon fiber of dip-coating flame retardant paint at the wrapped one deck of its outside braiding; The stranding process, for the roundness that guarantees cable reaches fire-retardant effect again, fill the non-ignitibility fiber between core, and it is wrapped with fire-retardant band, after the cable stranding is finished, it is two-layer to cross the high-intensity fire-resistant carbon fiber knit of flame retardant paint with dip-coating again, or one deck carbon fiber knit, and the one metal wire layer braiding constitutes wear-resisting, fire-retardant oversheath.

The beneficial effects of the utility model are to compare with original equal cable product, this small product size is little, in light weight, pliability is strong, bending radius is little, lay, install conveniently moving, quick, and intensity height, shock resistance, extruding and wear-resistant, decay resistance is strong, biting of anti-aging again, other animal such as moisture resistance is wet, termite-proof and mouse, increase the service life, improved production efficiency.

Four, description of drawings:

As figure is structural representation of the present utility model.

Among the figure 1, establishment oversheath (non-ignitibility), 2, fire-retardant band, 3, the control line insulation, 4, the control line core, 5, main line core, 6, the power line braided sheath, 7, the power line insulation, 8, the ground wire braided sheath, 9, ground wire insulation, 10, wire core, 11, the non-ignitibility fiberfill fibers

Five, execution mode:

As seen from the figure, in braiding oversheath 1 and the fire-retardant band 2 control line 4, power line 6 and ground wire 10 are installed, in the braiding oversheath, between control line, main line, power line etc., non-ignitibility fiberfill fibers 11 are installed.

Claims (2)

1, flame-proof abrasion-resistant woven protective layer insulated cable, it is characterized in that each element all adopts non-combustible material to form, oversheath adopts high-intensity refractory fibre braiding and dip-coating flame retardant paint to constitute thin sheath, on conductor, adopt the tin-coated copper single line, on the strand system, adopt whole equidirectional strand systems, the control core also adopts the tin-coated copper single line, at the wrapped one deck process of the outside braiding of this product dip-coating flame retardant paint refractory fibre, fill the non-ignitibility fiber between core, and, and then the refractory fibre braiding one to two layer of with dip-coating crossing flame retardant paint wrapped with fire-retardant band.

2, flame-proof abrasion-resistant woven protective layer insulated cable according to claim 1, it is characterized in that weaving two layers of outer jackets is or one deck carbon fiber knit that the one metal wire layer braiding constitutes.

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