IEC 60684的本部分给出了母线绝缘用两种热缩聚烯烃套管的要求，其标称收缩比为2.5:1。 已发现该套管适用于100°C以下的温度。 •A型:中壁-内径通常不超过170,0 mm•B型:厚壁-内径通常不超过165,0 mm 这些袖子通常是红色或棕色的。交叉引用:EN 60684-1:2003EN 60296:2012IEC 60684-2:2011IEC 60684-1:2003IEC 60757:1983EN ISO 4892-3:2016ISO 4892-3:2016ISO 846:2019IEC 60296:2012EN ISO 846:2019HD 457 S1:1985EN 60684-2:2011IEC 60684-3（系列）EN 60684-3-420至422（系列）IEC 60684-3（所有表格）购买本文件时可用的所有当前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 for bus-bar insulation, with a nominal shrink ratio of 2,5:1. This sleeving has been found suitable up to temperatures of 100 °C. • Type A: Medium wall - internal diameter up to 170,0 mm typically• Type B: Thick wall - internal diameter up to 165,0 mm typically These sleevings are normally supplied in colour, red or brown.Cross References:EN 60684-1:2003EN 60296:2012IEC 60684-2:2011IEC 60684-1:2003IEC 60757:1983EN ISO 4892-3:2016ISO 4892-3:2016ISO 846:2019IEC 60296:2012EN ISO 846:2019HD 457 S1:1985EN 60684-2:2011IEC 60684-3 (series)EN 60684-3-420 to 422 (series)IEC 60684-3 (all sheets)All current amendments available at time of purchase are included with the purchase of this document.