本指南为电缆制造商和用户提供了有关低压、中压和高压电力电缆以及使用金属塑料层压板作为径向防潮层的通信、控制和仪表电缆的设计、测试、应用和安装的广泛信息。本指南介绍了通过使用聚合物高吸水性材料对绞合导线和电缆内其他空间进行纵向阻水来保护电缆免受湿气进入的其他方法。此外，还将讨论挤压金属护套或纵向应用的裸金属胶带与密封接缝的交替使用。

This guide provides cable manufacturers and users with extensive information on the design, testing, application, and installation of low, medium, and high-voltage power cables, as well as communication, control and instrument cables that make use of metal-plastic laminates as radial-moisture barriers. This guide addresses additional means of protecting cables from the entrance of moisture through the use of polymeric super absorbent materials for longitudinal water blocking of stranded conductors and other spaces within cables. The alternate use of extruded metal sheaths or bare, longitudinally applied, metallic tapes with sealed seams will likewise be addressed.