Unlock instant, AI-driven research and patent intelligence for your innovation.

Insulating clamping semi-conductive belt and manufacturing process thereof

A semi-conductive tape and manufacturing process technology, applied to the conductive layer, insulated cable, insulated conductor and other directions on the insulating carrier, can solve the problems of leakage, electric shock, and easy conduction of the shielding tape

Active Publication Date: 2019-07-02
YANG ZHOU TENGFEI ELECTRIC CABLE & APPLIANCE MATERIALS CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the tapes used for cable shielding performance are copper tape, aluminum tape and a very small part of lead sheath. They all have superior shielding performance and good electrical conductivity, but the disadvantage is that there is no insulating protective layer on the surface. In the case of cable damage and rupture, the shielding tape is extremely prone to conduction, electric shock, and leakage when it is in contact with the power supply
[0004] In addition, in special cables that require no metal components as conductors and shielding layers, such as good shielding effects and buried cables that cannot be detected by metal detectors, the existing metal material tapes cannot meet the above requirements. Require

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
  • Insulating clamping semi-conductive belt and manufacturing process thereof
  • Insulating clamping semi-conductive belt and manufacturing process thereof
  • Insulating clamping semi-conductive belt and manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] An insulating clamping type semi-conductive belt, comprising two layers of nylon fabric 1 and a conductive carbon black colloid layer 2 arranged in the middle of the nylon fabric 1.

[0035] Nylon fabric 1 uses 75dtex nylon filaments as the warp and weft yarns, with a density of 60 threads / cm to ensure that the nylon fabric 1 is opaque and has an insulating effect.

[0036] The conductive carbon black colloidal layer 2 includes the following components by mass fraction: 30% silica gel, 10% nano hollow carbon tubes, 58% ethyl ester, and 2% curing agent. The above curing agent uses benzoyl peroxide.

[0037] The specific manufacturing method is as follows:

[0038] 1) Use nylon filaments of 75dtex as warp and weft yarns through a loom, and the density is 60 threads / cm to make nylon weaving to ensure that the eyes are opaque;

[0039] 2) Add 30% silica gel, 10% nano-hollow carbon tubes, 58% ethyl ester, and 2% benzoyl peroxide into a high-speed mixer and stir for 30 minut...

Embodiment 2

[0046] An insulating clamping type semi-conductive belt, comprising two layers of nylon fabric 1 and a conductive carbon black colloid layer 2 arranged in the middle of the nylon fabric 1.

[0047] Nylon fabric 1 uses 1000dtex nylon filaments as warp and weft yarns, with a density of 30 threads / cm, to ensure that nylon fabric 1 is opaque and has an insulating effect.

[0048] The conductive carbon black colloidal layer 2 includes the following components by mass fraction: 41% silica gel, 8% nano hollow carbon tubes, 50% ethyl ester, and 1% curing agent. The above curing agent uses benzoyl peroxide.

[0049] The specific manufacturing method is as follows:

[0050] 1) Use 1000dtex nylon filaments as warp and weft yarns through a loom, with a density of 30 threads / cm, to make nylon weaving to ensure that the eyes are opaque;

[0051] 2) Add 41% silica gel, 8% nano-hollow carbon tubes, 50% ethyl ester, and 1% benzoyl peroxide to a high-speed mixer and stir for 30 minutes to obta...

Embodiment 3

[0057] An insulating clamping type semi-conductive belt, comprising two layers of nylon fabric 1 and a conductive carbon black colloid layer 2 arranged in the middle of the nylon fabric 1.

[0058] Nylon fabric 1 uses 500dtex nylon filaments as warp and weft yarns, with a density of 45 threads / cm to ensure that nylon fabric 1 is opaque and has an insulating effect.

[0059] The conductive carbon black colloidal layer 2 includes the following components by mass fraction: 35% silica gel, 9% nano hollow carbon tubes, 55% ethyl ester, and 1% curing agent. The above curing agent uses benzoyl peroxide.

[0060] The specific manufacturing method is as follows:

[0061] 1) Use 500dtex nylon filaments as warp and weft yarns through a loom, with a density of 45 threads / cm, to make nylon weaving to ensure that the eyes are opaque;

[0062] 2) Add 35% silica gel, 9% nano-hollow carbon tubes, 55% ethyl ester, and 1% benzoyl peroxide to a high-speed mixer and stir for 30 minutes to obtain ...

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
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an insulating clamping semi-conductive belt and a manufacturing process thereof. The semi-conductive belt includes a conductive shielding layer and insulating layers arranged on both sides of the conductive shielding layer. The conductive shielding layer is a conductive carbon black colloid. The conductive carbon black colloid comprises the following components by weight: 30-41% of silica gel, 8-10% of nano hollow carbon tubes, 50-58% of ethyl ester and 1-2% of curing agent. The insulating layers are arranged on the two sides of the conductive shielding layer, which canensure that cables will not leak electricity, conduct electricity or cause an electric shock under damage and breakage. The conductive carbon black colloid in the middle is made of a non-metallic material, tests show that the surface resistance is lower than 100 Ohm and the volume resistance is lower than 1*10<3> Ohm, and the electric field can be homogenized. The insulating clamping semi-conductive belt can be widely used in inner layer wrapping and shielding of ultrahigh-voltage cables and high-voltage mine cables, especially in cables made of non-metallic conductors.

Description

technical field [0001] The invention relates to the technical field of cable manufacturing, in particular to an insulating clamping type semi-conductive tape and a manufacturing process thereof. Background technique [0002] In the national standard for power cables, for XLPE insulated power cables of 500 square millimeters and above 10KV, it is required to wrap a layer of semi-conductive material outside the conductor to achieve the effect of homogenizing the electric field. [0003] In the prior art, the tapes used for cable shielding performance are copper tape, aluminum tape and a very small part of lead sheath. They all have superior shielding performance and good electrical conductivity, but the disadvantage is that there is no insulating protective layer on the surface. In the case of cable damage and rupture, the shielding tape is extremely easy to conduct electricity, get an electric shock, and leak electricity when it is in contact with the power supply. [0004] ...

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): H01B5/14H01B1/18H01B1/24H01B7/17H01B13/00H01B13/22
CPCH01B1/18H01B1/24H01B5/14H01B7/17H01B13/0026H01B13/227
Inventor 张云周敏玉张云芳徐鹭鹭毕乃梅
Owner YANG ZHOU TENGFEI ELECTRIC CABLE & APPLIANCE MATERIALS CO LTD