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Method for detecting heat dissipation performance of cable conduit

A technology for heat dissipation performance and detection of cables, which is applied in the field of detection of heat dissipation performance of cable conduits, can solve problems such as the absence of heat dissipation performance detection methods for cable conduits, and achieve the effects of simplified detection process, good practical performance, and improved accuracy

Pending Publication Date: 2019-08-06
ZHEJIANG HUADIAN EQUIP TESTING INST +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object to be achieved by the present invention is to provide a method for detecting the heat dissipation performance of a cable guide, which solves the technical problem that there is no method for detecting the heat dissipation performance of the existing cable guide and thus leads to a certain risk

Method used

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  • Method for detecting heat dissipation performance of cable conduit
  • Method for detecting heat dissipation performance of cable conduit

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Embodiment Construction

[0027] A method for detecting the heat dissipation performance of a cable guide, comprising a temperature control box for detecting the heat dissipation performance of the cable guide, the method includes the following steps in sequence:

[0028] Step 1: Take a sample from a qualified cable duct, and obtain a pipe section sample with a length of 290-310mm, and check the shape and size of the pipe section sample, so that the concentricity deviation of the pipe section sample is -2~2mm , the deviation in the length direction of the pipe section sample is not greater than 1 / 1000;

[0029] Step 2: Put the pipe section sample that passed the test in step 1 into the temperature control box, and seal the two ends of the pipe section sample, and keep the temperature in the temperature control box at 18-28°C;

[0030] Step 3: Heat the inside of the pipe section sample treated in step 2, and the heating rate per hour is not lower than 15°C, and stop heating when the internal temperature...

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Abstract

The invention relates to a method for detecting the heat dissipation performance of a cable conduit. A temperature control box for detecting the heat dissipation performance of the cable conduit is arranged. The method comprises the following steps: step one, detecting a conduit segment sample; step two, fixing the conduit segment sample; step three, heating the conduit segment sample; and step four, cooling the conduit segment sample. According to the invention, the method has the following advantages: since the conduit segment sample heating and cooling are carried out in the temperature control box and the temperature control box can ensure the constant temperature inside the box, the temperature of the conduit segment sample is not affected by external factors during the heating and cooling processes, so that the accuracy of the temperature detection is improved and thus the heat dissipation performance of the conduit segment sample is obtained rapidly and the detection process issimplified. Moreover, the heat dissipation performances of conduit segment sample in different environments are simulated by setting the temperature in the temperature control box, so that the practical performance is good.

Description

technical field [0001] The invention relates to a method for detecting the heat dissipation performance of a cable guide. Background technique [0002] Cable conduit is a pipe used to protect wires and cables in electrical installations, allowing the penetration and replacement of wires and cables. However, during the long-term use of existing cables, the cables will generate heat for a long time, which will easily lead to thermal deformation. , reduce the protection of the cable, therefore, it is necessary to test the heat dissipation performance of the cable guide, and the overall detection process of the existing cable guide is complicated when the heat dissipation performance is tested, and the manual operation is time-consuming and laborious, and the heat dissipation result is easily affected by external factors The influence of unqualified products leads to misuse of unqualified products as qualified products, and the protection of cables during use is low, and there a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20
CPCG01N25/20
Inventor 马恒钱科赵旭阳高义波汪立锋潘伟建
Owner ZHEJIANG HUADIAN EQUIP TESTING INST
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