IEC 60684的本部分给出了标称收缩比为3:1的两种非阻燃厚壁和中壁热收缩聚烯烃套管的要求。 已发现该套管适合在高达100°C的温度下使用。 •A型:中等壁-内径通常不超过200 mm。•B型:厚壁——内径通常不超过200 mm。 这些套管通常以黑色供应。 由于这些类型的套管涵盖了很大的尺寸和壁厚范围，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。 符合本规范的材料符合既定的性能水平。 然而，用户为特定应用选择材料将基于该应用中充分性能所需的实际要求，而不仅仅基于本规范。交叉引用:IEC 60684-1:2003HD 457 S1:1985ISO 868:2003IEC 60757:1983EN ISO 868:2003ISO 11358-1:2014EN ISO 11358-1:2014EN 60684-1（IEC 60684-1:2003）ASEN 60684-2:2011IEC 60296:2012IEC 60684-2:2011EN 60684-3-420至422（系列）IEC 60684-3（系列）IEC 60684-3（所有表格）购买本文件时可用的所有现行修订均包括在购买时。

This part of IEC 60684 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.Cross References:IEC 60684-1:2003HD 457 S1:1985ISO 868:2003IEC 60757:1983EN ISO 868:2003ISO 11358-1:2014EN ISO 11358-1:2014EN 60684-1 (IEC 60684-1:2003) ASEN 60684-2:2011IEC 60296:2012IEC 60684-2:2011EN 60684-3-420 to 422 (series)IEC 60684-3 (series)IEC 60684-3 (all sheets)All current amendments available at time of purchase are included with the purchase of this document.