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35kV - 220kV casting-type cable body fusion joint and making method thereof

A 35kv--220kv, cable body technology, applied in the direction of circuits, connections, electrical components, etc., can solve problems such as joint breakdown

Pending Publication Date: 2019-06-25
广东科启电力技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the joint still has a movable interface, and the interface is very prone to joint breakdown accidents

Method used

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  • 35kV - 220kV casting-type cable body fusion joint and making method thereof
  • 35kV - 220kV casting-type cable body fusion joint and making method thereof
  • 35kV - 220kV casting-type cable body fusion joint and making method thereof

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Embodiment Construction

[0064] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0065] like figure 1 As shown, the 35kV--220kV castable cable body fusion joint of the present invention includes a first cable body 1 and a second cable body 2, the first cable body 1 is composed of the first cable body core 11, the second cable body core 11, and the second A semi-conductive cloth layer 12 in the cable body, a semi-conductive shielding layer 13 in the first cable body, a first cable body insulating layer 14, a first cable body insulating shielding layer 15, a first cable body semi-conductive water-blocking buffer layer 16, The first cable body aluminum sheath metal layer 17 and the first cable body outer sheath insulation protection layer 18 are composed of the second cable body core 21, the second cable body inner semi-conductive cloth layer 22, the second cable body 2 Two cable body inner semiconducting shielding ...

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Abstract

The invention relates to the field of cable connection, and discloses a 35kV - 220kV casting-type cable body fusion joint. The 35kV - 220kV casting-type cable body fusion joint comprises two cables; each cable is composed of a body wire core, an inner semi-conductive cloth layer, an inner semi-conductive shielding layer, an insulating layer, an insulating shielding layer, a semi-conductive water blocking buffer layer, an aluminum sheath metal layer and an outer sheath insulating protective layer which are sequentially arranged from inside to outside; the exposed sections of the two cables arewelded to form a welding point; the welding point is sequentially coated with a recovery inner semi-conductive cloth layer, a recovery inner semi-conductive shielding layer, a recovery insulating layer, a recovery insulating shielding layer, a recovery semi-conductive water blocking buffer layer, a recovery aluminum sheath metal layer and a recovery outer sheath insulating protective layer. The invention also discloses a method of making the 35kV - 220kV casting-type cable body fusion joint. According to the 35kV - 220kV casting-type cable body fusion joint and the making method thereof, the electric field at the cable joint and the electric field of the cable body can realize the same equipotential distribution, no breakdown happens, and the power supply reliability is ensured.

Description

technical field [0001] The invention relates to the field of cable connection, in particular to a 35kV--220kV casting type cable body fusion joint and a manufacturing method thereof. Background technique [0002] With the construction and development of urban modernization, urban beautification and tight use of land resources, the country began to build a large number of underground urban comprehensive pipelines, replacing the high-voltage overhead lines that originally spanned the city with cables and relocated them to the underground urban comprehensive pipelines. For the construction and development of urban modernization, urban beautification, and provide more land resources. [0003] However, 90% of the accidents occurred in the operation of 35kV ~ 220kV high-voltage cables occurred in the connection between the cables. For example, in a bureau in Guangdong in 2015, a faulty 220kV cable intermediate connector caught fire and the multi-circuit cable burned down. In 2016...

Claims

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Application Information

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IPC IPC(8): H01R4/72H01R43/00H01R43/02
Inventor 聂龙威钟奇双聂国金赖阳强司慢曼
Owner 广东科启电力技术有限公司
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