Medium-voltage fireproof cable and preparation method thereof

A fireproof cable, medium voltage technology, applied in the direction of cable/conductor manufacturing, insulated cable, bendable cable, etc., can solve the problem of fireproof cable losing normal power transmission capacity, insufficient fire resistance, etc. Good, improve the effect of safety

Pending Publication Date: 2020-12-11
TBEA DEYANG CABLE CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the event of a fire emergency, the fireproof cable with insufficient fire resistance will lose its normal power transmission capacity and cannot provide valuable time for fire rescue and personnel escape.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Medium-voltage fireproof cable and preparation method thereof
  • Medium-voltage fireproof cable and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] see figure 1 As shown, the present invention includes an insulating structural cable core, and the exterior of the insulating structural cable core is sequentially coated with a metal isolation layer 8, a fireproof cooling layer 9, an outer wrapping layer 10 and a fireproof sheath layer from the inside to the outside.

[0049] Wherein, the insulating structure cable core is a stranded structure of three insulated conductors, and the stranded gaps of these insulated conductors are filled with non-hygroscopic materials—such as filling layers 6 of polyolefin materials, and the insulated conductors and filling layers 6 of these stranded structures It is tightly formed by the inner tape layer 7 which is wrapped two layers (or three layers; the thickness is about 0.2mm). The inner tape layer 7 is a halogen-free, low-smoke, flame-retardant glass fiber tape wrapping structure. Each of the aforementioned insulated conductors is mainly composed of a conductor 1 and an inner semic...

Embodiment 2

[0074] Other contents of this embodiment are the same as those of Embodiment 1, except that the conductor is made of aluminum, that is, an aluminum conductor.

Embodiment 3

[0076] Other contents of this embodiment are the same as those of Embodiment 1, except that the conductor is made of aluminum alloy, that is, the aluminum alloy conductor.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
flame retardantaaaaaaaaaa
flame retardantaaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention discloses a medium-voltage fireproof cable and a preparation method thereof. The fireproof cable comprises an insulation structure cable core, and the insulation structure cable core issequentially coated with a metal isolation layer, a fireproof cooling layer, an outer wrapping tape layer and a fireproof sheath layer from inside to outside. The fire-resistant temperature reaches 950-1000 DEG C, the fire-resistant time reaches 180 min, the conditions of water spraying, mechanical vibration and the like can be coped with, and the fire-resistant performance is excellent.

Description

technical field [0001] The invention relates to cables, in particular to a medium-voltage fireproof cable and a preparation method for the cable. Background technique [0002] 6kV ~ 35kV medium voltage cables are medium voltage power supply cables that should be used in various buildings and industrial and mining environments. In recent years, with the enhancement of people's safety awareness and the continuous improvement of fire safety technical requirements, medium voltage cables with various fireproof structures have emerged as the times require. [0003] At present, common medium-voltage fireproof cables are mainly composed of a cable core and an inner oxygen barrier layer, a ceramic polyolefin layer / ceramic silicone rubber layer, an outer oxygen barrier layer, and a sheath layer that are sequentially coated on the outside of the cable core. The performance can only meet the simple fire resistance test requirements of flame temperature 750 ℃ ​​~ 800 ℃, burning time 90 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/295H01B7/29H01B7/22H01B7/04H01B7/17H01B1/02H01B7/00H01B13/22H01B13/24H01B13/26
CPCH01B1/023H01B1/026H01B7/0009H01B7/04H01B7/17H01B7/225H01B7/292H01B7/295H01B13/22H01B13/24H01B13/2613
Inventor 李庆陈修敏雷明武志强钟金华刘新峰陈霞杨启顺
Owner TBEA DEYANG CABLE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap