IEC 60684的这一部分给出了标称收缩比为3:1的热收缩聚烯烃套管和防开裂材料的要求。 已发现该套管适用于温度高达100°C的环境。 通常情况下:中等壁厚，内径可达110毫米。 这种袖子通常有红色或棕色。 由于这些类型的套管涵盖了相当大的尺寸和壁厚范围，附录a（表a.1）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。 该套管设计用于中压电缆附件，因此电气性能将作为组件的一部分进行验证。HD 629.1和IEC 60502（所有部分）中描述了这方面的示例。交叉引用:IEC 60684-1:2003EN 60296:2012EN 60684-1:2003ISO 4892-3:2016IEC 60684-2:2011EN 60684-2:2011HD 457 S1:1985IEC 60757:1983EN ISO 4892-3:2016ISO 846:2019EN ISO 846:2019IEC 60296:2012HD 629.1EN 60684-3- 420至422（系列）IEC 60684-3（所有页）IEC 60684-3（系列）IEC 60502（所有部分）购买本文件时可获得的所有现行修订均包含在购买本文件中。

This part of IEC 60684 gives the requirements for heat-shrinkable, polyolefin sleeving, antitracking with a nominal shrink ratio of 3:1. This sleeving has been found suitable for use at temperatures up to 100 °C. Typically: medium wall, internal diameter up to 110 mm. This sleeving is normally supplied in the colours red or brown. Since these types of sleeving cover a significantly large range of sizes and wall thicknesses, Annex A (Table A.1) provides guidance on the range of sizes available. The actual size will be agreed between the user and the 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 sleeving is designed to be used in medium voltage cable accessories and as such electrical performance willbe proven as part of the assembly. Examples of this are described in HD 629.1 and IEC 60502 (all parts).Cross References:IEC 60684-1:2003EN 60296:2012EN 60684-1:2003ISO 4892-3:2016IEC 60684-2:2011EN 60684-2:2011HD 457 S1:1985IEC 60757:1983EN ISO 4892-3:2016ISO 846:2019EN ISO 846:2019IEC 60296:2012HD 629.1EN 60684-3-420 to 422 (series)IEC 60684-3 (all sheets)IEC 60684-3 (series)IEC 60502 (all parts)All current amendments available at time of purchase are included with the purchase of this document.