CN205487500U

CN205487500U - 10KV fireproof cable

Info

Publication number: CN205487500U
Application number: CN201620204605.7U
Authority: CN
Inventors: 苏银玉; 吴长青; 刘多全; 张雪艳; 李颖; 刘畅
Original assignee: Shenyang Aike Tiger Cable Co ltd
Current assignee: Shenyang Aike Tiger Cable Co ltd
Priority date: 2016-03-17
Filing date: 2016-03-17
Publication date: 2016-08-17
Anticipated expiration: 2026-03-17

Abstract

10KV fireproof cable, it is constituteed including cable core, filler, waterproof layer, rubber layer, aramid fiber layer, insulating layer, fire -retardant foaming layer and oversheath, the cable core comprises four sinle silks, the sinle silk is by being located the outer flame retardant coating of central conductor and conductor, insulating layer and constituteing around the covering, flame retardant coating, insulating layer and around the covering from inside to outside in proper order the parcel outside the conductor, waterproof layer, rubber layer, aramid fiber layer, insulating layer, fire -retardant foaming layer and oversheath wrap up outside the cable core from inside to outside in proper order, the filler is located between cable core and the waterproof layer. The utility model discloses a cable structure is perfect, the function is various, and wear -resisting durable, still can play the fire prevention effect under the higher condition of voltage, the cable core has good compliance to can guarantee that the cable core splits difficult production of crooked in -process, the flame retardant coating effect is insulation under the high temperature condition.

Description

10KV fireproof cable

Technical field

This utility model belongs to field of cable technology, is specifically related to 10KV fireproof cable.

Background technology

Fireproof cable is widely used in skyscraper, underground railway, undergrond street, large-scale power station and important industrial and mining establishment etc. and fire safety；Existing fireproof cable mostly is low-voltage cable, and voltage is only 1KV, lacks the cable that under high pressure can play flameproof protection effect, especially in the case of large-scale supply station voltage is higher, needs a kind of high pressure fireproof cable especially；In addition, existing many construction of cable simple functions are single and are not durable, it is therefore desirable to a kind of multi-functional wear-resisting durable high tension cable.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of 10KV fireproof cable, to reach to remain to play under conditions of voltage is higher the purpose of fireproofing function.

For solving above-mentioned technical problem, this utility model the technical scheme is that 10KV fireproof cable, its composition includes cable core, implant, waterproof layer, rubber layer, aramid layers, thermal insulation layer, flame-retardant expanded layer and oversheath；Described cable core is made up of four cores, and described core is made up of flame retardant coating, insulating barrier and the lapping layer being positioned at outside the conductor at center and conductor；Described flame retardant coating, insulating barrier and lapping layer are wrapped in outside conductor the most successively；Described waterproof layer, rubber layer, aramid layers, thermal insulation layer, flame-retardant expanded layer and oversheath are wrapped in outside cable core the most successively；Described implant is between cable core and waterproof layer.

Described conductor uses the preferable copper conductor of fire resistance, if stranded by carried interest copper wire, has good pliability, it is thus possible to ensure that cable core is not likely to produce fracture in BENDING PROCESS simultaneously.

Described flame retardant coating uses that inorganic mineral insulation band is wrapped makes, and flame retardant coating act as under hot conditions insulation, and refractory temperature can reach more than 1000 degree, it is ensured that plays the insulating effect to core under the high temperature conditions and ensures that the normal power-up of core is run simultaneously.

Described insulating barrier uses crosslinked polyethylene to make, crosslinked polyetylene insulated is to utilize chemically or physically, cable insulation polyethylene molecule is made to be changed into main body network molecular structure by linearity molecular structure, the most thermoplastic polyethylene is changed into heat cured crosslinked polyethylene, thus it is greatly improved its thermostability and mechanical performance, decrease its contractility so that it is not re-melting after being heated, and maintain excellent electric property.Therefore, crosslinked polyetylene insulated have good superiority in heat-resisting, mechanical properties, so that insulating barrier has the performance such as thermostability and cut resistant.

Described lapping layer is formed by glass fiber tape is wrapped.

Described implant is glass cord, owing to glass cord is to form through special process braiding, there is the main performances such as corrosion-resistant, high intensity, can be used for the aspects such as insulant such as motor, instrument, electrical equipment, being more uniformly stressed of core is respectively organized so that the intensity of cable increases during can ensure that cable distortion.

Described rubber layer is Ceramic silicon rubber layer.

Described flame-retardant expanded layer is latticed, expanded material in flame-retardant expanded layer is when temperature is higher than 200 degree, start foaming, temperature more high-foaming speed is the fastest, and foaming and intumescing coefficient reaches 20 times, and the bubble that expanded material sends has the heat-insulating capability of excellence, if by fire location, the bubble sent can fill up rapidly near fire location, makes fire extinguish due to anoxia, thus has reached the purpose preventing cable on fire.

Described oversheath uses halogen-free and low-smoke flame-retardant polyolefin sheathed material, is made by crowded tubular type expressing technique, and such oversheath can form the carbon shell of porous when burning, thus plays heat-blocking action.

Compared with prior art, this utility model has the beneficial effect that by arranging multiple structure so that the construction of cable of the present utility model is perfect, diverse in function and wear-resisting durable；Remain to play fireproofing function under conditions of voltage is higher；Cable core has good flexibility, it is thus possible to ensure that cable core is not likely to produce fracture in BENDING PROCESS；Flame retardant coating act as under hot conditions insulation；Implant is each during ensureing cable distortion organizes being more uniformly stressed of core so that the intensity of cable increases；The bubble that expanded material in flame-retardant expanded layer sends can fill up rapidly near fire location, makes fire extinguish due to anoxia, thus has reached the purpose preventing cable on fire；Oversheath can form the carbon shell of porous when burning, thus plays heat-blocking action；By the protective effect at high temperature under high pressure of cable different layers so that this utility model has more prominent performance.

Accompanying drawing explanation

Fig. 1 is the structural representation of 10KV fireproof cable；

Wherein: 1 conductor, 2 flame retardant coatings, 3 insulating barriers, 4 lapping layers, 5 implants, 6 waterproof layers, 7 rubber layers, 8 aramid layers, 9 thermal insulation layers, 10 flame-retardant expanded layers, 11 oversheaths.

Detailed description of the invention

This utility model the technical scheme is that 10KV fireproof cable, its composition includes cable core, implant 5, waterproof layer 6, rubber layer 7, aramid layers 8, thermal insulation layer 9, flame-retardant expanded layer 10 and oversheath 11；Described cable core is made up of four cores, and described core is made up of flame retardant coating 2, insulating barrier 3 and the lapping layer 4 being positioned at outside the conductor 1 at center and conductor 1；Described flame retardant coating 2, insulating barrier 3 and lapping layer 4 are wrapped in outside conductor 1 the most successively；Described waterproof layer 6, rubber layer 7, aramid layers 8, thermal insulation layer 9, flame-retardant expanded layer 10 and oversheath 11 are wrapped in outside cable core the most successively；Described implant 5 is between cable core and waterproof layer 6.

Described conductor 1 uses the preferable copper conductor of fire resistance, if stranded by carried interest copper wire, has good pliability, it is thus possible to ensure that cable core is not likely to produce fracture in BENDING PROCESS.

Described flame retardant coating 2 uses that inorganic mineral insulation band is wrapped to be made, flame retardant coating act as under hot conditions insulation, refractory temperature can reach more than 1000 degree, it is ensured that plays the insulating effect to core under the high temperature conditions and ensures that the normal power-up of core is run simultaneously.

Described insulating barrier 3 uses crosslinked polyethylene to make, crosslinked polyetylene insulated is to utilize chemically or physically, cable insulation polyethylene molecule is made to be changed into main body network molecular structure by linearity molecular structure, the most thermoplastic polyethylene is changed into heat cured crosslinked polyethylene, thus it is greatly improved its thermostability and mechanical performance, decrease its contractility so that it is not re-melting after being heated, and maintain excellent electric property.Therefore, crosslinked polyetylene insulated have good superiority in heat-resisting, mechanical properties, so that insulating barrier has the performance such as thermostability and cut resistant.

Described lapping layer 4 is formed by glass fiber tape is wrapped.

Described implant 5 is glass cord, owing to glass cord is to form through special process braiding, there is the main performances such as corrosion-resistant, high intensity, can be used for the aspects such as insulant such as motor, instrument, electrical equipment, being more uniformly stressed of core is respectively organized so that the intensity of cable increases during can ensure that cable distortion.

Described rubber layer 7 is Ceramic silicon rubber layer.

Described flame-retardant expanded layer 10 is latticed, expanded material in flame-retardant expanded layer is when temperature is higher than 200 degree, start foaming, temperature more high-foaming speed is the fastest, and foaming and intumescing coefficient reaches 20 times, and the bubble that expanded material sends has the heat-insulating capability of excellence, if by fire location, the bubble sent can fill up rapidly near fire location, makes fire extinguish due to anoxia, thus has reached the purpose preventing cable on fire.

Described oversheath 11 uses halogen-free and low-smoke flame-retardant polyolefin sheathed material, is made by crowded tubular type expressing technique, and such oversheath 11 can form the carbon shell of porous when burning, thus plays heat-blocking action.

Claims

1.10KV fireproof cable, it is characterised in that its composition includes cable core, implant (5), waterproof layer (6), rubber layer (7), aramid layers (8), thermal insulation layer (9), flame-retardant expanded layer (10) and oversheath (11)；Described cable core is made up of four cores, and described core is made up of the conductor (1) and conductor (1) flame retardant coating (2), insulating barrier (3) and lapping layer (4) outward being positioned at center；Described flame retardant coating (2), insulating barrier (3) and lapping layer (4) are wrapped in conductor (1) outward the most successively；Described waterproof layer (6), rubber layer (7), aramid layers (8), thermal insulation layer (9), flame-retardant expanded layer (10) and oversheath (11) are wrapped in outside cable core the most successively；Described implant (5) is positioned between cable core and waterproof layer (6).

10KV fireproof cable the most according to claim 1, it is characterised in that described conductor (1) uses the preferable copper conductor of fire resistance, if stranded by carried interest copper wire.

10KV fireproof cable the most according to claim 1, it is characterised in that described flame retardant coating (2) uses that inorganic mineral insulation band is wrapped makes.

10KV fireproof cable the most according to claim 1, it is characterised in that described insulating barrier (3) uses crosslinked polyethylene to make.

10KV fireproof cable the most according to claim 1, it is characterised in that described lapping layer (4) is formed by glass fiber tape is wrapped.

10KV fireproof cable the most according to claim 1, it is characterised in that described implant (5) is glass cord.

10KV fireproof cable the most according to claim 1, it is characterised in that described rubber layer (7) is Ceramic silicon rubber layer.

10KV fireproof cable the most according to claim 1, it is characterised in that described flame-retardant expanded layer (10) is latticed, and flame-retardant expanded layer has expanded material in (10).

10KV fireproof cable the most according to claim 1, it is characterised in that described oversheath (11) uses halogen-free and low-smoke flame-retardant polyolefin sheathed material, is made by crowded tubular type expressing technique.