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Buried wire and cable joint sealing treatment device

A processing device, wire and cable technology, applied in cable/conductor manufacturing, circuits, electrical components, etc., can solve the problems of power transmission failure at the connection, long maintenance time, affecting the normal transmission of power, etc., to ensure fire protection, prolong service life, Guaranteed sealing performance

Inactive Publication Date: 2017-06-30
STATE GRID SHANDONG ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This requires that the connection of buried wires and cables must have a high sealing performance, otherwise it is very easy to cause a transmission fault at the connection during the power transmission process, affecting the normal transmission of power, and the maintenance time is very long, which is harmful to people's daily life, The normal production of the factory has a greater impact

Method used

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  • Buried wire and cable joint sealing treatment device

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Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: A sealing treatment device for buried wire and cable joints, including a housing, the housing includes an upper housing 6 and a lower housing 8, and the upper housing 6 and the lower housing 8 form a cable at both ends Entrance, the cable entrance is provided with a sealing structure, the sealing structure includes a first water blocking layer 2, a second water blocking layer 4, an insulating layer 3 and a refractory layer 5, wherein the first water blocking layer 2 consists of the following The composition of parts by weight: 25-30 parts of epoxy resin, 10-15 parts of phenolic resin, 5-10 parts of talcum powder, 5-10 parts of quartz powder, 10-15 parts of bonding resin, 1-5 parts of graphite powder, 1-5 parts of carbon black, 1-2 parts of sodium fluorosilicate; the second water blocking layer 4 is composed of the following ingredients in parts by weight: 50-60 parts of melamine formaldehyde resin, 5-6 parts of polyether arylamine, silicon 45-65 parts of s...

Embodiment 2

[0020] Embodiment 2: A sealing treatment device for buried wire and cable joints, including a housing, wherein the insulating layer 3 is composed of the following components by weight: 25-30 parts of calcium carbonate powder, 25-30 parts of silicon dioxide powder, 2-10 parts of talcum powder, 15-20 parts of binder resin, and 30-40 parts of medium-density polyethylene. The refractory layer 5 is composed of the following components by weight: 25-45 parts of high-density polyethylene, 15-20 parts of high-strength glass fiber, 25-30 parts of high-temperature-resistant ceramic powder, 5-10 parts of flame retardant, white jade corundum 5 to 10 servings. The upper shell 6 and the lower shell 8 are made of one or more of ceramics, glass, and high-strength synthetic resin, and the surface is covered with one of polytetrafluoroethylene or fluorinated ethylene propylene copolymer. or more. All the other are identical with embodiment 1.

Embodiment 3

[0021] Embodiment 3: A sealing treatment device for buried wire and cable joints, including a housing, wherein the first water blocking layer 2 is composed of the following components by weight: 26-28 parts of epoxy resin, 12-14 parts of phenolic resin , 6-8 parts of talcum powder, 6-8 parts of quartz powder, 12-14 parts of binder resin, 2-4 parts of graphite powder, 2-4 parts of carbon black, and 1-2 parts of sodium fluorosilicate. The second water blocking layer 4 is composed of the following ingredients in parts by weight: 52-58 parts of melamine formaldehyde resin, 5-6 parts of polyether arylamine, 50-60 parts of sodium silicate, 4-5 parts of hard glue, kaolin 0.2 to 0.6 parts, 1 to 2 parts of boron oxide, and 1 to 2 parts of titanium oxide. The insulating layer 3 is composed of the following components by weight: 26-28 parts of calcium carbonate powder, 26-28 parts of silicon dioxide powder, 4-8 parts of talcum powder, 16-18 parts of bonding resin, 35 parts of medium-dens...

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Abstract

The invention discloses a sealing treatment device for buried wire and cable joints, which belongs to the field of power transmission line sealing devices and is used for sealing joints of buried wires and cables. The upper casing and the lower casing form cable inlets at both ends, and a sealing structure is provided at the cable inlet, and the sealing structure includes a first water-blocking layer, a second water-blocking layer, an insulating layer and a refractory layer. In view of the above technical solution, the present invention can realize the sealing of the joints of buried wires and cables, and further realize the good insulation performance of the casing and the fireproof performance in the case of short circuit under the condition of good sealing.

Description

technical field [0001] The invention belongs to the field of transmission line sealing devices, and in particular relates to a sealing treatment device for buried wire and cable joints. Background technique [0002] In the existing power transmission lines, connecting devices of cables and wires are often used in order to have sufficient length of cables and wires to realize power transmission. Some connecting devices of cables or wires are suspended in the air, and some cables Or the connection device of the electric wire is deeply buried in the ground, and the main problem faced at the joint of the underground cable or electric wire is the erosion of the joint by the humid underground environment. This requires that the connection of buried wires and cables must have a high sealing performance, otherwise it is very easy to cause a transmission fault at the connection during the power transmission process, affecting the normal transmission of power, and the maintenance time...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B13/00
Inventor 刘强刘斐苏永义隋树法王海张庆伟
Owner STATE GRID SHANDONG ELECTRIC POWER