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Fireproof and flame-retardant power cable

A power cable, fire-resistant and flame-retardant technology, applied in the field of fire-resistant and flame-retardant power cables, can solve problems such as low mechanical properties of power cables, neglect of product quality, and power cable leakage, so as to facilitate installation and maintenance and improve wear resistance properties, the effect of improving fire resistance and flame retardancy

Inactive Publication Date: 2017-02-22
KUNSHAN HANHUI ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional cable companies are busy with development and increasing production, and do not pay attention to product quality. As a result, the mechanical properties of the existing power cables on the market are not high. Long-term use will cause aging of the protective layer, resulting in leakage and short circuits of power cables. Occurs frequently and is a fuse that can easily cause a fire

Method used

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  • Fireproof and flame-retardant power cable
  • Fireproof and flame-retardant power cable
  • Fireproof and flame-retardant power cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: A fire-resistant and flame-retardant power cable, such as figure 1 As shown, it includes an inner core, a shielding layer 2, an insulating layer 4 and a sheath layer 6, the shielding layer 2 is arranged outside the inner core, and the insulating layer 4 is arranged outside the shielding layer 2, so The sheath layer 6 is arranged outside the insulating layer 4, a refractory layer 3 is provided between the shielding layer 2 and the insulating layer 4, and a refractory layer 3 is provided between the insulating layer 4 and the sheath layer 6. The flame retardant layer 5 , the inner core includes three conductors 1 and a support 8 .

[0028] The support member 8 includes 3 support pieces, the 3 support pieces are of rectangular structure, the axes of the 3 adjacent support pieces on any cross section form 120 degrees to each other, and the 3 support pieces are integrally formed is the support member 8 .

[0029] The three conductors 1 are all coated with a s...

Embodiment 2

[0035] Embodiment 2: A fire-resistant and flame-retardant power cable, such as figure 2 As shown, the rest are the same as the embodiment 1, the difference is that the flame-retardant layer 5 is two kinds of polyurethane flame-retardant layer, organic phosphorus flame-retardant layer and high-density fiber flame-retardant layer, and the fire-resistant layer 3. The parts by weight of the raw materials are: 60 parts of projection material, 53 parts of light refractory castable, 58 parts of magnesium oxide, 37 parts of nitride, 16 parts of heat insulation board, 3 parts of diatomite and 3 parts of cermet.

Embodiment 3

[0036] Embodiment 3: A fire-resistant and flame-retardant power cable, such as image 3 As shown, the rest is the same as that of Example 1, the difference is that the flame-retardant layer 5 is a polyurethane flame-retardant layer, an organic phosphorus flame-retardant layer and a high-density fiber flame-retardant layer, and the composition raw materials of the fire-resistant layer 3 The parts by weight are: 70 parts of projection material, 50 parts of lightweight refractory castable, 54 parts of magnesium oxide, 28 parts of nitride, 10 parts of heat insulation board, 4 parts of diatomaceous earth and 5 parts of cermet.

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Abstract

The invention discloses a fireproof and flame-retardant power cable. The fireproof and flame-retardant power cable comprises an inner core, a shielding layer, an insulating layer and a sheath layer, wherein the shielding layer is arranged on the exterior of the inner core; the insulating layer is arranged on the exterior of the shielding layer; the sheath layer is arranged on the exterior of the insulating layer; a fireproof layer is arranged between the shielding layer and the insulating layer; a flame-retardant layer is arranged between the insulating layer and the sheath layer; the inner core comprises three conductors and a supporting part; and the space between the conductors and the supporting part is filled with an anti-extrusion material. By adoption of the mode, the fire resistance and the flame retardancy of the power cable can be improved while the mechanical performance is not affected; the power supply capability of the power cable in fire can be improved; and in addition, the fireproof and flame-retardant power cable is relatively low in production cost and suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of electronic cables, in particular to a fire-resistant and flame-retardant power cable. Background technique [0002] Power cables are cables used to transmit and distribute electric energy. They are cables used to transmit and distribute high-power electric energy in the backbone lines of power systems. With the continuous development of my country's economy, the market and demand of the power cable industry are also constantly changing. . The basic structure of a power cable includes a core (conductor) and a protective layer (shielding layer, insulating layer and sheath layer). The core is an important part of the power cable. The protective layer on the outer layer of the core mainly realizes shielding, insulation, and external force protection. Destruction and other functions. However, traditional cable companies are busy with development and increasing production, and do not pay attention to product q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/29H01B7/295H01B9/02H01B7/18H01B13/00
CPCH01B7/29H01B7/18H01B7/295H01B9/02H01B13/00
Inventor 周文荣
Owner KUNSHAN HANHUI ELECTRONICS TECH CO LTD