请问BS4607标准是一个什么内容

1. BS 4607-1-1984 现行

Non-metallic conduits and fittings for electrical installations - Specification for fittings and components of insulating material
电气装置用非金属导管及配件规范.绝缘材料配件和元件规范

2. BS 4607-2-1970 现行

Non-metallic conduits and fittings for electrical installations - Rigid PVC conduits and conduit fittings - Imperial units
电气装置用非金属导管及配件规范.硬聚氯乙烯导管和配件.英制单位

3. BS 4607-3-1971 现行

Non-metallic conduits and fittings for electrical installations - Pliable corrugated, plain and reinforced conduits of self-extinguishing plastics material
电气装置用非金属导管及配件规范.自熄性塑料制普通和增强的可弯波纹导管

4. BS 4607-5-1982 现行

Non-metallic conduits and fittings for electrical installations - Specification for rigid conduits, fittings and components of insulating material
电气装置用非金属导管及配件规范.第5部分:绝缘材料制刚性导管、配件和元件规范