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A kind of insulation sealing method of cable joint

A cable joint, insulation sealing technology, applied in the direction of air-filled/oil-filled cable accessories, non-polymer adhesive additives, adhesive types, etc., can solve the problem of inability to guarantee cable insulation performance, affect the service life of cables, and affect the line Safety and other issues, to achieve the effect of ensuring service life, easy removal, and avoiding oxidation leakage

Active Publication Date: 2018-08-03
JINZHOU ELECTRIC POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, wrapping waterproof tape around the cable is a relatively convenient and quick way, but in outdoor humid environment, underground aquifer, water or harsh environment, the insulation performance of the cable cannot be guaranteed, and oxidation and leakage occur easily. , affect the safety of the line, or cause excessive contact resistance, affecting the service life of the cable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1.1. Prepare sealed waterproof insulating rubber clay

[0028] Weigh raw materials: natural rubber 100g; liquid polyisobutylene 32g; α-pinene resin 12g; zinc oxide 6g; sulfur 3.5g; stearic acid 3.5g; 0.6g accelerator DM; 1.3g accelerator TMTD; channel carbon black 60g; 0.8g rubber anti-aging agent RD; rosin 10.5g; mix the natural rubber particles and channel black evenly, then add zinc oxide, sulfur, stearic acid, accelerator DM and accelerator TMTD and stir evenly, and finally add Stir liquid polyisobutylene, rubber antioxidant RD, rosin and α-pinene resin evenly, then heat to 100°C for 40 minutes, cool to room temperature, and seal the package;

[0029] 1.2. Preparation of sealed waterproof insulating rubber mud strips

[0030] Press the waterproof insulating rubber clay into a sealed waterproof insulating rubber clay strip with a thickness of 2mm and a width of 4cm, attach a layer of anti-adhesive film to the upper surface of the sealed waterproof insulating rubber ...

Embodiment 2

[0045] 1.1. Prepare sealed waterproof insulating rubber clay

[0046] Weigh raw materials: 100g of natural rubber; 32g of liquid polyisobutylene; 12g of α-pinene resin; 6.5g of zinc oxide;

[0047] 3g of sulfur; 4g of stearic acid; 0.4g of accelerator DM; 1.5g of accelerator TMTD; 58g of channel black; 1g of rubber antioxidant RD; Zinc oxide, sulfur, stearic acid, accelerator DM and accelerator TMTD are stirred evenly, and finally liquid polyisobutylene, rubber antioxidant RD, rosin and α-pinene resin are added in turn and stirred evenly, then heated to 100°C for 60 minutes, cooled to room temperature, sealed package;

[0048] 1.2. Preparation of sealed waterproof insulating rubber mud strips

[0049] Press the waterproof and insulating rubber clay into a sealed waterproof and insulating rubber clay strip with a thickness of 1.5mm and a width of 5cm. The upper surface of the sealed waterproof and insulating rubber clay strip is attached with a layer of anti-adhesive film, an...

Embodiment 3

[0064] 1.1. Prepare sealed waterproof insulating rubber clay

[0065] Weigh raw materials: natural rubber 100g; liquid polyisobutylene 32g; α-pinene resin 12g; zinc oxide 6.2g; sulfur 3.2g; stearic acid 3.8g; 0.5g accelerator DM; 1.4g accelerator TMTD; Black 59g; 0.9g rubber anti-aging agent RD; rosin 10.2g; mix the natural rubber particles and channel black evenly, then add zinc oxide, sulfur, stearic acid, accelerator DM and accelerator TMTD and stir evenly, and finally Add liquid polyisobutylene, rubber antioxidant RD, rosin and α-pinene resin and stir evenly, then heat to 100°C for 50 minutes, cool to room temperature, and seal the package;

[0066] 1.2. Preparation of sealed waterproof insulating rubber mud strips

[0067] Press the waterproof and insulating rubber clay into a sealed waterproof and insulating rubber clay strip with a thickness of 3mm and a width of 3cm, attach a layer of anti-adhesive film to the upper surface of the sealed waterproof and insulating rubb...

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Abstract

An insulating and sealing method for cable joints. Stir the natural rubber particles and channel black evenly, then add zinc oxide, sulfur, stearic acid, accelerator DM and accelerator TMTD and stir evenly, and finally add liquid polyisobutylene, Stir the rubber antioxidant RD, rosin and α-pinene resin evenly, then heat it to 100°C and keep it warm, and cool to room temperature to prepare waterproof and insulating rubber clay. After the two cable joints of the cable are connected, fill the gap between the two cable joints with sealed waterproof insulating rubber mud strips, and then cover the joints of the two cable joints with sealed waterproof insulating rubber mud strips, and finally use electric power Tape fixed. The advantages are: convenient and fast operation, with the function of isolating air, moisture and insulation, protecting the cable joints exposed in the air or underground, and avoiding oxidation leakage of line contacts and excessive contact resistance.

Description

technical field [0001] The invention relates to an insulating and sealing method for a cable joint. Background technique [0002] In cable installation work or emergency repair of cable accidents, underground power line joints often appear, and cable insulation is generally carried out by means of distribution boxes, underground cable wells or winding waterproof tape outside the cables. Among them, wrapping waterproof tape around the cable is a relatively convenient and quick way, but in outdoor humid environment, underground aquifer, water or harsh environment, the insulation performance of the cable cannot be guaranteed, and oxidation and leakage occur easily. , affect the safety of the line, or cause excessive contact resistance, affecting the service life of the cable. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an insulating and sealing method for cable joints, which is convenient and quick to operate, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G15/25C09J107/00C09J123/20C09J193/04C09J11/08C09J11/06C09J11/04
Inventor 景欣刘长庆杨月颖王京刘波
Owner JINZHOU ELECTRIC POWER SUPPLY COMPANY OF STATE GRID LIAONING ELECTRIC POWER SUPPLY
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