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Ship cable insulation corrosion degree evaluation method based on multi-dimensional relaxation parameters

A cable insulation and ship technology, which is applied in the field of evaluating the corrosion degree of ship cable insulation based on multi-dimensional relaxation parameters, which can solve problems such as reduced cable tolerance, cable failure, and threats to the safe operation of electrical equipment.

Pending Publication Date: 2021-01-05
CHONGQING JIAOTONG UNIVERSITY
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Problems solved by technology

Ship cables are often eroded by seawater, which leads to corrosion of the insulation as a whole, which reduces the cable's tolerance and causes cable failures, which seriously threatens the safe operation of various electrical equipment.

Method used

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  • Ship cable insulation corrosion degree evaluation method based on multi-dimensional relaxation parameters
  • Ship cable insulation corrosion degree evaluation method based on multi-dimensional relaxation parameters
  • Ship cable insulation corrosion degree evaluation method based on multi-dimensional relaxation parameters

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Embodiment Construction

[0033] Below in conjunction with flowchart, the present invention will be further described:

[0034] according to figure 1 Ship cable insulation evaluation flow chart, the specific calculation steps of the present invention are as follows:

[0035] The first step: collect the broadband dielectric spectrum dielectric loss angle information of the target ship cable;

[0036] Carry out h broadband dielectric spectrum dielectric loss angle tests on the target ship cable, and record the discrete broadband dielectric spectrum dielectric loss angle data collected from the target ship cable as A (i,a) , i represents i-time broadband dielectric spectrum dielectric loss angle test, 0<i≤h; a represents discrete broadband dielectric spectrum dielectric loss angle data frequency points, a∈{0.01,0.02,0.04,0.1,0.2,0.4,1 ,2,4,10,20,40,100,200,400,1000};

[0037] The second step: calculating the multidimensional relaxation parameters of the target ship cable, including the following steps;...

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Abstract

The invention relates to a ship cable insulation corrosion degree evaluation method based on multi-dimensional relaxation parameters. The method comprises the following steps: firstly, testing a broadband dielectric spectrum dielectric loss angle of a ship cable to be tested; then calculating a multi-dimensional relaxation parameter xi of the ship cable to be measured; and finally, evaluating theinsulation corrosion degree of the ship cable to be detected according to the multi-dimensional relaxation parameter xi. A foundation is laid for ensuring the safe operation of the cable.

Description

technical field [0001] The invention belongs to the field of evaluating the aging state of cable insulation, and in particular relates to a method for evaluating the corrosion degree of ship cable insulation based on multidimensional relaxation parameters. Background technique [0002] XLPE is widely used in various types of cable insulation because of its simple structure, light weight, good heat resistance, strong load capacity, and high mechanical strength. Ship cables are often eroded by seawater, which leads to corrosion of the insulation as a whole, which reduces the cable's tolerance, causes cable failures, and seriously threatens the safe operation of various electrical equipment. [0003] In order to accurately and efficiently evaluate the degree of corrosion of ship cable insulation and reduce the incidence of cable failures, an evaluation method for the degree of corrosion of ship cable insulation is urgently needed. This method is a method for evaluating the deg...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/26G01R31/12
CPCG01R27/2617G01R31/1272
Inventor 盛进路万一阳梅亚唐可
Owner CHONGQING JIAOTONG UNIVERSITY