source:Industry News Popular:adapter release time:2021-05-06 10:48:09 Article author:sznbone
The performance tests of plug power cords produced by power cord manufacturers mainly include thermal weight loss, thermal shock, high temperature pressure, low temperature bending, low temperature stretching, low temperature impact, flame retardancy and so on. These are to examine the performance of plastic materials for insulation and sheathing. For example, the thermal weight loss test is to detect the degree of degradation and volatilization of the material after 7 days of high temperature aging at 80°C; the thermal shock test is subjected to a special roll after a high temperature of 105°C for 1 hour Whether the insulation surface of the winding is cracked; high temperature pressure tests the degree of elasticity retention of the insulating material after high temperature and then cooling; all low temperature tests generally refer to the change of its mechanical properties under the condition of -15 ℃. Whether it becomes brittle, easy to crack or break under low temperature environment.
In addition, the flame-retardant performance of power cords and cables produced by power cord manufacturers is very important. The test to examine this performance is a non-flame test, that is, the finished cable installed according to the standard is ignited with a special flame for a certain period of time. After self-extinguishing, check the burned condition of the cable. Of course, the less burned part, the better, indicating that it has poor combustibility, good flame retardancy, and safer.
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