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220kv epoxy type insulating copper casing

An epoxy insulation, 220kv technology, applied in the electrical field, can solve the problems of reducing the stability and service life of power cables, unsatisfactory electrical insulation effect, unreasonable structural design, etc., to improve the safety of use, improve the overall performance and use Longevity, reasonable effect of overall structure design

Inactive Publication Date: 2016-01-06
宁波东昊电力科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structural design of most of the existing copper shells is unreasonable, the material is common and single, and its electrical insulation effect is not ideal, which reduces the stability and service life of the power cable.

Method used

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  • 220kv epoxy type insulating copper casing
  • 220kv epoxy type insulating copper casing
  • 220kv epoxy type insulating copper casing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Both the left insulating layer and the right insulating layer described in this embodiment are made of epoxy resin composite material, and the epoxy resin composite material includes the following components and weight percentages:

[0070] Epoxy resin: 40wt%;

[0071] E-glass fiber: 6wt%;

[0072] Nano Sb 2 o 3 : 5wt%;

[0073] Decabromodiphenyl ether (FR-10): 1.5wt%;

[0074] Curing agent: 3wt%;

[0075] Curing agent accelerator: 3wt%;

[0076] The balance is silica.

[0077] Wherein, the epoxy resin is a phosphorus-containing epoxy resin, and the phosphorus content is 3%; the alkali-free glass fiber is a chopped glass fiber, and the length of the chopped glass fiber is 2.0-5.0mm, and the diameter is 8- 12 μm; the silicon dioxide is a mixture including silicon dioxide particles I, silicon dioxide particles II and silicon dioxide particles III (silicon dioxide particles I 12%, silicon dioxide particles II 70%, and the balance is silicon dioxide Particle III), t...

Embodiment 2

[0080] Both the left insulating layer and the right insulating layer described in this embodiment are made of epoxy resin composite material, and the epoxy resin composite material includes the following components and weight percentages:

[0081] Epoxy resin: 35wt%;

[0082] E-glass fiber: 8wt%;

[0083] Nano Sb 2 o 3 : 5wt%;

[0084] Decabromodiphenyl ether (FR-10): 1.2wt%;

[0085] Curing agent: 4wt%;

[0086] Curing agent accelerator: 2wt%;

[0087] The balance is silica.

[0088] Wherein, the epoxy resin is phosphorus-containing epoxy resin, and the phosphorus content is 2.5%; the alkali-free glass fiber is chopped glass fiber, and the length of the chopped glass fiber is 2.0-5.0mm, and the diameter is 8- 12 μm; the silicon dioxide is a mixture including silicon dioxide particles I, silicon dioxide particles II and silicon dioxide particles III (14% silicon dioxide particles I, 72% silicon dioxide particles II, and the balance is silicon dioxide Particle III), the...

Embodiment 3

[0091] Both the left insulating layer and the right insulating layer described in this embodiment are made of epoxy resin composite material, and the epoxy resin composite material includes the following components and weight percentages:

[0092] Epoxy resin: 50wt%;

[0093] E-glass fiber: 6wt%;

[0094] Nano Sb 2 o 3 : 4wt%;

[0095] Decabromodiphenyl ether (FR-10): 1wt%;

[0096] Curing agent: 2wt%;

[0097] Curing agent accelerator: 4wt%;

[0098] The balance is silica.

[0099] Wherein, the epoxy resin is a phosphorus-containing epoxy resin, and the phosphorus content is 4%; the alkali-free glass fiber is a chopped glass fiber, and the length of the chopped glass fiber is 2.0-5.0mm, and the diameter is 8- 12 μm; the silicon dioxide is a mixture including silicon dioxide particles I, silicon dioxide particles II and silicon dioxide particles III (15% of silicon dioxide particles, 65% of silicon dioxide particles, and the balance is silicon dioxide Particle III), th...

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Abstract

The invention provides a 220kV epoxy type insulating copper casing and belongs to the field of electrical techniques. The 220kV epoxy type insulating copper casing comprises a left copper tube, a right copper tube, an epoxy insulating part, a left insulating layer and a right insulating layer, wherein the left copper tube comprises a first large copper tube body and a first small copper tube body, a left copper sleeve flange is mounted on the first large copper tube body in a sealed manner, and a left wiring end close to the first small copper tube body is arrangd on one side of the first large copper tube body; the right copper tube comprises a second large copper tube body and a second small copper tube body, a right copper sleeve flange is mounted on the second large copper tube body in a sealed manner, a right wiring end close to the second small copper tube is arranged on one side of the second large copper tube body, and the right wiring end and the left wiring end are arranged on the same side; the epoxy insulating part is annularly arranged, molded by casting an epoxy resin material and arranged between the left copper sleeve flange and the right copper sleeve flange, and the epoxy insulating part, the left copper sleeve flange and the right copper sleeve flange are connected in a sealed manner; the left insulating layer and the right insulating layer are made from an epoxy resin composite composed of specific components. The 220kV epoxy type insulating copper casing is reasonable in design and has stable electrical insulation performance, high comprehensive performance and long service life.

Description

technical field [0001] The invention belongs to the field of electrical technology, and relates to a 220kV epoxy-type insulated copper shell, in particular to a 220kV epoxy-type insulated copper shell suitable for intermediate joints of power cables. Background technique [0002] In daily life, when long-distance wiring or power cable installation, the means of connecting two power cables together is usually used to increase the length of the cable. [0003] In the prior art, the power cable intermediate joint is generally used to realize the connection of the power cable, and a copper shell is provided outside the power cable intermediate joint to realize electrical insulation. However, the structural design of most of the existing copper shells is unreasonable, the material is common and single, and its electrical insulation effect is not ideal, which reduces the stability and service life of the power cable. [0004] To sum up, in order to solve the deficiencies in the e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K13/04C08K7/14C08K3/22C08K5/06C08K3/36
Inventor 董俊广
Owner 宁波东昊电力科技股份有限公司
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