本加拿大国家标准适用于柔性绝缘盖（线路软管），以保护工人免受意外接触带电或接地导体的伤害，并避免带电作业期间发生短路。提供了五种不同电气特性的导线盖，并将其指定为0级、1级、2级、3级和4级。提供了六类成分和性能不同的导体外壳:A类-耐酸，H类-耐油，C类-极端低温环境配方，W类-极端高温环境配方，Z类-耐臭氧，P类-潮湿环境配方。可提供各种不同结构特征的导线盖，其中六种被指定为A型、B型、C型、D型、E型（见图1）和F型。

This National Standard of Canada is applicable to flexible insulating covers (line hoses) for the protection of workers from accidental contact with live or earthed electrical conductors and for the avoidance of short circuits during live working.Five classes of conductor covers, differing in electrical characteristics, are provided and designated as class 0, class 1, class 2, class 3, and class 4.Six categories of conductor covers differing in composition and properties are provided: category A - acid resistant, category H - oil resistant, category C - formulated for extreme low temperature environments, category W - formulated for extreme high temperature environments, category Z - ozone resistant, and category P - formulated for humid environment.Various styles of conductor covers, differing in construction characteristics are available and six of these are designated as style A, style B, style C, style D, style E, (see figure 1), and style F.