Inspection and test method for modified polypropylene plastic cable protection pipe

A technology of cable protection tube and polypropylene plastic, which is applied in the direction of specific gravity measurement, measuring devices, and analysis materials, etc., can solve the problems of time-consuming and laborious, and achieve the effect of convenient and fast operation, reduce the risk of bidding, and improve the efficiency of circulation and storage

Active Publication Date: 2021-03-23
JIANGSU ELECTRIC POWER CO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The process of laboratory temperature and test sample processing is time-consuming and labor-intensive, and because the sample directly affects the test results, reliable and fast sampling and efficient and fast test methods are particularly prominent

Method used

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  • Inspection and test method for modified polypropylene plastic cable protection pipe
  • Inspection and test method for modified polypropylene plastic cable protection pipe
  • Inspection and test method for modified polypropylene plastic cable protection pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0101] The batch number of the material warehouse of the power grid company is 1903J0321101. The modified polypropylene plastic cable protection tube has a diameter of 100mm and a production date of 2019-12-09. The sample meets the basic requirements of the test. After sampling on-site testing, the TD solution sample sinks to the bottom and is determined to be unqualified.

Embodiment 2

[0103] The batch number of the material warehouse of the power grid company is 1903J0321502. The modified polypropylene plastic cable protection tube has a diameter of 200mm and a production date of 2019-10-12. The sample meets the basic requirements of the test. After sampling on-site testing, the TD sample sank to the bottom and was determined to be unqualified.

Embodiment 3

[0105] The batch number of the material warehouse of the power grid company is 1901J0650401. The modified polypropylene plastic cable protection tube has a diameter of 100mm and a production date of 2019-12-03. The sample meets the basic requirements of the test. After sampling on-site testing, the TD sample sank to the bottom and was determined to be unqualified.

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PUM

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Abstract

The invention discloses an inspection and test method for a modified polypropylene plastic cable protection pipe. The inspection and test method comprises the following steps: 1) preparing inspectionpretreatment; 2) sampling the reasonable position of a modified polypropylene cable protection pipe; 3) testing an inspection reagent; 4) carrying out Vicat softening performance test; 5) judging an inspection result: judging that a test part is qualified when an upper limit solution of detection reagent samples is suspended and a lower limit solution of the samples is settled, otherwise, judgingthat the test part is unqualified; if the Vicat softening test temperature is more than 150 DEG C, judging that the sample is qualified, otherwise, judging that the sample is unqualified; and judgingthat the whole section of the inspection pipe is unqualified if unqualified samples appear. By means of the field density testing method, the mass density characteristics of related samples of the cable protection pipe can be accurately tested and evaluated, pre-detection is achieved, and the quality safety rate and the parameter qualification rate of products are increased.

Description

technical field [0001] The invention belongs to the field of distribution network construction and electric power material inspection, and specifically relates to an inspection and testing method for modified polypropylene plastic cable protection pipes. Background technique [0002] Industrial background: Modified polypropylene (modified polypropylene plastic) plastic cable conduit, referred to as modified polypropylene plastic power pipe, is made of modified polypropylene as the main material, and necessary processing aids are added to form it after processing. It is an improved power sheath pipe with excellent heat resistance, which is suitable for the laying of power cables and plays the role of guiding and protecting. [0003] Inspection background: Product qualification rate is generally low, product hidden dangers are serious, especially strict supervision is required, quality incidents occur from time to time, how to avoid the risk of unqualified in the first time in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N9/02G01N25/04
CPCG01N9/02G01N25/04
Inventor 袁航陈骞喻志程胥峥
Owner JIANGSU ELECTRIC POWER CO
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