柔性绝缘套管 - 第3部分:各种类型套管的规范 - 第214页:热收缩聚烯烃套管 不阻燃 厚壁和中等壁厚

[中文适用范围]： 本部分IEC 60684规定了两类非阻燃、厚壁和中壁、标称收缩比为3:1的聚烯烃热缩套管的要求。这些套管适用于最高100°C的温度。类型A：中壁 - 内径通常可达200毫米。类型B：厚壁 - 内径通常可达200毫米。这些套管通常以黑色供应。由于这些类型的套管涵盖了大量尺寸和壁厚范围，本文件附录A（表A.1和A.2）提供了可用尺寸范围的指南。实际尺寸将由用户和供应商商定。符合本规范的材满足既定的性能水平。然而，用户在特定应用中选择材料时，应基于该应用中足够性能的实际要求，而不仅仅基于本规范。 [外文原描述]： IEC 60684-3-214:2019 gives the requirements for two types of heat-shrinkable, polyolefin sleeving, not flame retarded, thick and medium wall with a nominal shrink ratio of 3:1. This sleeving has been found suitable for use at temperatures of up to 100 °C. - Type A: Medium wall - internal diameter up to 200 mm typically. - Type B: Thick wall - internal diameter up to 200 mm typically. These sleevings are normally supplied in colour black. Since these types of sleeving cover a significantly large range of sizes and wall thicknesses, Annex A (Tables A.1 and A.2) of this document provides a guide to the range of sizes available. The actual size will be agreed between the user and supplier. Materials which conform to this specification meet established levels of performance. However, the selection of a material by a user for a specific application will be based on the actual requirements necessary for adequate performance in that application and not based on this specification alone. This fourth edition cancels and replaces the third edition published in 2013. This edition constitutes a technical revision. This edition includes the following significant technical change with respect to the previous edition: - removal of colour fastness to light test, as this is covered by the test for carbon black content. Keywords: Heat-shrinkable, polyolefin sleeving, not flame retarded, thick and medium wall