PVC insulating sleeves are often used in our daily lives. Many consumers will always encounter a large gap in the performance of different pvc insulating sleeves. This is because the performance of pvc insulating sleeves produced from different materials is different. The editor will introduce the heat resistance evaluation criteria of PVC insulating materials for everyone. The following three points are related to how to evaluate the heat resistance of pvc insulating materials. Understanding these will be of great help when choosing pvc insulating sleeves.
First, a standardized test procedure suitable for comparative evaluation should be formulated. In the absence of such standardized test procedures, satisfactory results can be obtained. If you want to evaluate whether a material is suitable for a certain electrical product, the insulation research unit and the design, research, manufacturing, testing, and use unit of the electrical product should select an appropriate test procedure for the test.
Secondly, if there is no such operating experience, appropriate functional tests should be carried out. In this regard, relevant units should provide materials and information that have been proven by operating experience in specific applications. To evaluate the heat resistance of an insulating structure, it is best to use relevant operating experience as a basis. By comparing with it, to evaluate the heat resistance of the new insulation structure. Insulation research units and electrical product research, design, manufacturing, testing, and use units should design appropriate tests. When designing appropriate tests and formulating standardized test procedures for heat resistance evaluation, reference should be made to the relevant materials for evaluating insulation structures.
Finally, it is necessary to use a structure proven by operating experience as a reference. Looking at the insulation structure vs. a simple single-stressed insulation structure, it can be determined according to the specific situation. Is it necessary to perform a functional test of the insulation structure or is it relatively simple? Based on the heat resistance data of the material to make an evaluation. If it is the latter, the test should be carried out using materials that have been proven by appropriate operating experience as reference materials. At the same time, in order to be able to properly classify materials, guidelines on how to evaluate operating experience should also be provided.