Method for calculating crimping resistance at joint of middle connector of high-voltage single-core cable

A single-core cable and intermediate joint technology, applied in the field of crimping resistance, can solve the problems of lack of detection means and calculation methods, and achieve the effect of efficient detection means, simple calculation method and simple measurement

Active Publication Date: 2016-08-31
HUATIAN POWER TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual installation and production process, each manufacturer mainly achieves the purpose of reducing the crimping resistance by specifying the size of the connecting pipe, the number of crimping pits and the range of crimping force, and lacks effective detection methods and calculation methods

Method used

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  • Method for calculating crimping resistance at joint of middle connector of high-voltage single-core cable
  • Method for calculating crimping resistance at joint of middle connector of high-voltage single-core cable
  • Method for calculating crimping resistance at joint of middle connector of high-voltage single-core cable

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Embodiment Construction

[0036] The present invention will be further explained below in conjunction with specific embodiments.

[0037] refer to Figure 1-2 , the calculation method of the crimping resistance of a kind of high-voltage single-core cable intermediate joint connection that the present invention proposes, comprises the following steps:

[0038] S1, using a measuring tool to measure the size of the connecting pipe 5;

[0039] S2, determining the crimping length and crimping force parameters of the high-voltage single-core cable intermediate joint connection;

[0040] S3, calculating the total contact resistance of the contact surface between the connecting pipe 5 and the cable core 4;

[0041] S4, calculating the body resistance of the connecting pipe 5 at the connection portion where the connecting pipe 5 is not in contact with the cable core 4;

[0042] S5, calculate the total crimping resistance at the connection.

[0043] The outer sides of the first cable 1 and the second cable 2...

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Abstract

The invention discloses a method for calculating crimping resistance at the joint of a middle connector of a high-voltage single-core cable. The method comprises the following steps of S1, measuring the size of a connecting pipe by utilizing a measurement tool; S2, determining a crimping length and a crimping force parameter of the joint of the middle connector of the high-voltage single-core cable; S3, calculating total contact resistance of a surface, in contact with a cable core, of the connecting pipe; S4, calculating connecting pipe body resistance of a part, not in contact with the cable core, of the connecting pipe at the joint; and S5, calculating total crimping resistance of the joint. According to the method, the measurement and calculation methods are simple, the conductor loss of the middle connector of the cable can be simply measured, and a detection means is efficient.

Description

technical field [0001] The invention relates to the technical field of crimping resistance, in particular to a method for calculating the crimping resistance at the connection of an intermediate joint of a high-voltage single-core cable. Background technique [0002] The cable intermediate joint is an important part of the cable line, which is used to realize the connection of the cable length and the cross-connection of the three-phase line. Whether the cable line can run safely depends to a large extent on the success of the cable core connection. There are two methods of connecting cable cores: welding and crimping. Due to the high technical requirements of the welding process, the connection of the cable core is usually realized by crimping. The conductor core is connected by crimping, which changes the flow cross section of the joint connection point. The contact resistance (ie, crimping resistance) on the crimping surface of the connecting tube and the cable core is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q50/06
CPCG06Q50/06G06F30/00G06F2113/16Y02E40/70Y04S10/50
Inventor 李正佳王振华王鹏宇
Owner HUATIAN POWER TECH
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