绝缘软套管第3部分:各种型号套管规范活页214:非阻燃厚壁和中壁热收缩聚烯烃套管

[中文适用范围]： 本部分 IEC 60684 规定了两种类型的非阻燃、厚壁和中壁热收缩聚烯烃套管的性能要求，其标称收缩比为3:1。该套管适用于最高100°C的温度环境。 - 类型A：中壁 - 内径通常不超过200mm - 类型B：厚壁 - 内径通常不超过200mm 这些套管通常为黑色。 由于这些套管涵盖的尺寸和壁厚范围较大，本文件的附录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协商确定。 符合本规范的材料满足既定的性能水平。然而，用户为特定应用选择材料时，应基于该应用所需的实际性能要求，而不仅仅基于本规范。 [外文原描述]： IEC 60684-3-214:2019 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. 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