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Special double-flame-retardant power cable for fire fighting

A power cable and flame retardant technology, which is applied in the field of double flame retardant power cables for fire protection, can solve the problems of poor flame retardant effect of cables, cable accumulation, and reduced fire visibility, and achieves improved flame retardant performance and good high temperature resistance. Effect

Pending Publication Date: 2022-04-29
浙江中兴电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a double flame-retardant power cable for fire protection, one purpose of which is to have the effect of improving the flame-retardant performance of the cable, and to solve the poor flame-retardant effect of the existing cables, and at the same time, most of the existing flame-retardants use halides , due to the large smoke generated by halide combustion, which directly reduces the visibility of the fire and has a great impact on personnel evacuation and rescue; another purpose is to solve the problem that the existing cables lack fixing mechanisms and cannot Effectively fix the first cable and the second cable, and at the same time, the user cannot pull the first cable and the second cable at the same time, which directly affects the user's use situation, so as to achieve the effect of effectively fixing the cables; the other One purpose is to solve the problem that most of the existing cables are wound on the surface of the winding rod when they are idle, but most of them lack the limit for the cables on the surface of the winding rod, so that the cables are prone to slippery, and the slipping of the cables will cause accumulation, which is inconvenient The problem of the user's use, in order to achieve the effective limit effect on the cable

Method used

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  • Special double-flame-retardant power cable for fire fighting
  • Special double-flame-retardant power cable for fire fighting
  • Special double-flame-retardant power cable for fire fighting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Such as Figure 1-6As shown, the present invention provides a special double flame-retardant power cable for fire protection, including a cable 1, the surface of the cable 1 is provided with a limiting mechanism 2, the surface of the cable 1 is provided with a fixing mechanism 3, the cable 1 includes a cable core 192, and the cable The surface of the core 192 is provided with a polyether ether ketone filling layer 191, the surface of the polyetheretherketone filling layer 191 is provided with a skeleton 19, the surface of the skeleton 19 is provided with a polyolefin layer 18, and the surface of the polyolefin layer 18 is provided with polybenzo Imidazole layer 17, the surface of polybenzimidazole layer 17 is provided with polyethersulfone block 16, the surface of polyethersulfone block 16 is provided with heat insulation layer 15, and the surface of heat insulation layer 15 is provided with waterproof layer 14, and the surface of waterproof layer 14 An insulating layer...

Embodiment 2

[0043] Such as Figure 1-6 As shown, on the basis of Embodiment 1, the present invention provides a technical solution: preferably, the fixing mechanism 3 includes a No. 1 fixing block 32, and the top of the No. 1 fixing block 32 is fixedly connected with a No. 1 handle 31, and the No. 1 fixing block The bottom of 32 is movably connected with ring block 36, and the bottom of No. 1 fixed block 32 is overlapped with No. 2 fixed block 37, and ring block 36 is arranged on the top of No. 2 fixed block 37, and one side of No. 2 fixed block 37 is fixedly connected with Connecting plate 34, the top of connecting plate 34 is fixedly connected with No. 2 handle 35, the inner walls of No. 1 fixed block 32 and No. 2 fixed block 37 are all fixedly connected with extrusion pad 33, and the inside of No. 1 fixed block 32 is provided with grooves , the top of the inner wall of the groove is fixedly connected with a telescopic rod 38, the top of the inner wall of the groove and the outside of t...

Embodiment 3

[0046] Such as Figure 1-6 As shown, on the basis of Embodiment 1, the present invention provides a technical solution: preferably, the limit mechanism 2 includes a base 23, the inner wall side of the base 23 is fixedly connected with a slide bar 24, and the surface of the slide bar 24 is movably socketed There is a slide block 26, one side of the slide block 26 is fixedly connected with a return spring 25 on the surface of the slide bar 24, one side of the return spring 25 is fixedly connected with the inner wall side of the base 23, and one side of the slide block 26 is fixedly connected with Push rod 27, the surface of push rod 27 is provided with fixed shell 28, and one side of the inner cavity of fixed shell 28 is fixedly connected with spring 29, and one side of spring 29 is fixedly connected with connecting plate 291, and one side of connecting plate 291 is connected with pushing rod One end of 27 is fixedly connected, and the inside of the fixed shell 28 is provided wi...

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PUM

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Abstract

The invention discloses a fire-fighting special-purpose double-flame-retardant power cable, and relates to the technical field of cables, the fire-fighting special-purpose double-flame-retardant power cable comprises a cable, a limiting mechanism is arranged on the surface of the cable, a fixing mechanism is arranged on the surface of the cable, the cable comprises a cable core, and a polyether-ether-ketone filling layer is arranged on the surface of the cable core. A framework is arranged on the surface of the polyether-ether-ketone filling layer, and a polyolefin layer is arranged on the surface of the framework. Through cooperation of the polyethersulfone block, the polybenzimidazole layer, the polyolefin layer and the polyether-ether-ketone filling layer, the polyolefin layer has good flame retardant property and does not generate obvious smoke, and the polybenzimidazole layer, the polyethersulfone layer and the polyether-ether-ketone filling layer all have the advantages of good high temperature resistance and flame retardance. The problems that an existing cable is poor in flame-retardant effect, halide is mostly adopted for flame retardance, and large smoke can be generated after the halide is burnt are solved, and the effect of improving the flame-retardant performance of the cable is achieved.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a double flame-retardant power cable for fire protection. Background technique [0002] Flame-retardant cable refers to the cable that the sample is burned under the specified test conditions. After the test fire source is removed, the spread of the flame is only within a limited range, and the residual flame or residual flame can extinguish itself within a limited time. The basic characteristics Yes: In the event of a fire, it may be burned out and cannot operate, but it can prevent the spread of the fire. Generally speaking, if the wire catches fire, it can limit the combustion to a local area without spreading and keep other various equipment , to avoid greater losses. [0003] There are following problems at prior art: [0004] 1. The flame retardant effect of the existing cables is poor. At the same time, most of the existing flame retardants use halides. Because the halide...

Claims

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Application Information

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IPC IPC(8): H01B7/295H01B3/42H01B3/44H01B7/282H01B7/29H01B7/40B65H75/26
CPCH01B7/295H01B7/292H01B7/282H01B7/40H01B3/427H01B3/441H01B3/42B65H75/26Y02A30/14
Inventor 池巍巍
Owner 浙江中兴电缆有限公司