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Reinforced waterproof medium-voltage cable accessory

A cable accessory and medium voltage technology, applied in the direction of cable accessories, cable terminals, electrical components, etc., can solve the problems that affect the service life of cables and cable accessories, the sealing effect is not perfect, moisture or moisture intrusion, etc., to avoid breakdown Effects of accidents, good elasticity, and large interfacial pressure

Inactive Publication Date: 2020-08-25
安徽省浩辉电力股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, cold-shrinkable cable accessories were made of solid silicone rubber, which caused large permanent deformation. The product not only had a short storage period, but also had a small interface pressure when installed on the cable, and the sealing effect was not perfect, resulting in moisture or moisture intrusion, which seriously affected the cable and cable accessories. service life, serious even lead to breakdown accidents

Method used

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  • Reinforced waterproof medium-voltage cable accessory
  • Reinforced waterproof medium-voltage cable accessory
  • Reinforced waterproof medium-voltage cable accessory

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] according to Figure 1-3 A reinforced waterproof medium-voltage cable accessory shown includes a terminal 1, a sealing tube 2, a terminal body 3, a cold-shrinkable insulating tube 4, a cold-shrinkable three-pointed finger sleeve 5, and a sealing member 6. The sealing tube 2 is fixed on the The bottom of the terminal 1, the terminal body 3 is fixed on the bottom of the sealing tube 2, the cold-shrinkable insulating tube 4 is fixed on the bottom of the terminal body 3, and the cold-shrinkable three-pronged finger sleeve 5 is fixed on the bottom of the cold-shrinkable insulating tube 4 , the cold-shrinkable three-pronged sleeve 5 is provided with a cable 7 inside, and the cable 7 runs through the cold-shrinkable insulating tube 4, the terminal body 3 and the sealing tube 2 and is fixedly connected to the terminal 1, and the sealing member 6 is set on the wiring At the two-to-two joints of the terminal 1, the sealing tube 2, the terminal body 3, the cold-shrinkable insulati...

Embodiment 2

[0029] according to figure 1 Shown is a reinforced waterproof medium-voltage cable accessory, the terminal body 3 is provided with a plurality of sheds 14, and the plurality of sheds 14 are evenly arranged from top to bottom and integrated with the terminal body 3, increasing the Creepage distance also plays a role in preventing rain and pollution;

[0030] according to Figure 2-3 Shown is a reinforced waterproof medium-voltage cable accessory, the spiral glue groove 9 is provided with a waterproof sealant inside, the spiral glue groove 9 is set in a spiral shape, and one end connected with the glue inlet 11 is set at The top of the casing body 8 is convenient for glue injection;

[0031] according to image 3 As shown in a reinforced waterproof medium voltage cable accessory, the cross-section of the glue filling port 11 is set in an arc shape, and one end of the spiral glue filling groove 9 connected to it is arranged tangentially, so that the glue filling port 11 is set...

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Abstract

The invention discloses a reinforced waterproof medium-voltage cable accessory, which specifically relates to the field of medium-voltage cable accessories. The reinforced waterproof medium-voltage cable accessory comprises a wiring terminal, a sealing tube, a terminal main body, a cold shrink insulating tube, a cold shrink three-fork finger sleeve and a sealing part, wherein a cable is arranged in the cold shrink three-fork finger sleeve in a sleeving manner; the cable penetrates through the cold-shrink insulating tube, the terminal main body and the sealing tube and is fixedly connected withthe wiring terminal; the sealing part is arranged at the joint of every two of the wiring terminal, the sealing tube, the terminal main body, the cold-shrink insulating tube and the cold-shrink three-fork sleeve in a sleeving manner; the sealing part comprises a sleeve body, and a spiral glue adding groove is formed in the inner wall of the sleeve body. The whole cable accessory is made of the LSR liquid silicone rubber; after the sealing part is wrapped at the lap joint position of all the components, the waterproof sealant is used for enabling the components to form a whole, external moisture or vapor is prevented from invading, sealing and waterproofing are more stable and reliable, and therefore breakdown accidents caused by moisture or vapor invading of cable accessories are effectively avoided.

Description

technical field [0001] The invention relates to the technical field of medium-voltage cable accessories, and more specifically, the invention relates to a reinforced waterproof medium-voltage cable accessory. Background technique [0002] Silicone rubber cold-shrinkable cable accessories are firstly molded into semi-finished products in the factory, and then formed by expanding the caliber and built-in plastic spiral support sleeves. When in use, you only need to pull out the plastic support sleeve, and the cold shrinkable cable accessories will shrink onto the cable to complete the installation. In the past, cold-shrinkable cable accessories were made of solid silicone rubber, which caused large permanent deformation. The product not only had a short storage period, but also had a small interface pressure when installed on the cable, and the sealing effect was not perfect, resulting in moisture or moisture intrusion, which seriously affected the cable and cable accessories....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G15/04
CPCH02G15/043
Inventor 王刚王志明孙国玉
Owner 安徽省浩辉电力股份有限公司
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