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Quality measurement method of solar photovoltaic cable

A solar photovoltaic and quality testing technology, applied in the direction of measuring electrical variables, measuring devices, weather resistance/light resistance/corrosion resistance, etc., can solve problems such as unsuitable for solar photovoltaic cable quality testing, reduce product quality, and widely promote and apply Value, method, reasonable effect

Inactive Publication Date: 2012-07-04
广东优科检测认证有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing test methods for ordinary cables are no longer suitable for quality testing of solar photovoltaic cables

Method used

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Experimental program
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Embodiment

[0018] A method for testing the quality of photovoltaic cables, comprising the following test steps:

[0019] Step 1. Place the solar photovoltaic cable in an environment with a temperature of 90°C and a humidity of 85%, and conduct an air thermal aging test for 1000 hours. After the test, the maximum change rate of the strength / elongation of the solar photovoltaic cable does not exceed ±30 %, judge that the test is qualified and proceed to the next step of testing;

[0020] Step 2. Place the solar photovoltaic cable in a low-temperature freezer at -41°C and conduct a low-temperature test for 16 hours. After the test, if there is no crack in the solar photovoltaic cable, judge that the test is qualified and proceed to the next step of the test;

[0021] Step 3. Place the solar photovoltaic cable in an environment with an ozone concentration of 280ppm, and conduct a 24-hour ozone resistance test. After the test, conduct a 180-degree visual inspection of the solar photovoltaic c...

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PUM

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Abstract

The invention discloses a quality testing method of a solar photovoltaic cable. The quality testing method comprises the following testing steps of: 1, placing the solar photovoltaic cable in a place with the environment conditions that the temperature is 90 DEG C and the humidity is 85%, carrying out air thermal aging test for 1000h, and after the test is finished, when the maximal change rate of the strength / elongation of the solar photovoltaic cable does not exceed + / -30%, judging the solar photovoltaic cable to be qualified in the test and carrying out a next testing step; and 2, placing the solar photovoltaic cable in a low-temperature refrigerating cabinet at -40+ / -2 DEG C, carrying out a low-temperature test for 16 hours, and after the test is finished, when the solar photovoltaic cable has no cracks, judging the solar photovoltaic cable is qualified in the test and carrying a next testing step. The method disclosed by the invention is reasonable, the actual service environment of the solar photovoltaic cable is used during testing, so that the actual quality condition of the solar photovoltaic cable can be tested effectively, the actual service life of the solar photovoltaic cable can be measured, the quality problems are reduced, and the method has extensive popularization and application values.

Description

technical field [0001] The invention relates to a cable quality detection method, in particular to a solar photovoltaic cable quality detection method. Background technique [0002] Wire and cable is the second largest industry in the machinery industry after the automobile industry. It is an essential and important supporting product for electrical, electric power, light industry and other industries. Its application involves various fields. From ultra-high voltage transmission lines to household appliances, every link is inseparable from wires and cables, which is particularly important in a modern society. Due to the simple manufacturing and processing of wires and cables, high profits, and low industry entry barriers, many companies have been attracted to join in, forming a wire and cable manufacturing group of nearly 8,000 nationwide. While greatly enhancing the vitality of the wire and cable industry, it also makes the quality and price of the current wire and cable p...

Claims

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Application Information

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IPC IPC(8): G01N3/18G01N17/00G01R27/02
Inventor 张涛马启田陈益民
Owner 广东优科检测认证有限公司
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