绝缘软管. 第3部分: 各种型号软管的规范. 活页214: 中厚壁不阻燃聚烯烃热收缩软管

IEC 60684-3-214:2013 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 sleevings cover a significantly large range of sizes and wall thicknesses, 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 should be based on the actual requirements necessary for adequate performance in that application and not based on this specification alone. This third edition cancels and replaces the second edition published in 2005. This edition constitutes a technical revision. This edition includes the following significant technical change with respect to the previous edition: Alignment with IEC 60684-3-247 (dual wall) since this Part 3 specification represents a single wall option using identical material. Keywords: heat-shrinkable, polyolefin sleeving