IEC 60794-4-30:2021规定了用于承载电流以及通信和数据传输的OPPC（光相导体）的光纤、电缆元件、电缆结构要求、安装和操作条件的主要要求、电缆设计特性和试验。可根据IEC TR 62839-1建立相应的环境声明。OPPC是包含光纤的传统相裸导体的替代品。 通常，纤维松散地嵌入保护缓冲管中。为满足机械和电气要求，一层或多层铝、铝合金、铝包钢、镀锌钢或其混合物的铠装采用螺旋绞合。

IEC 60794-4-30:2021 specifies the optical fibre, cable elements, cable construction requirements, main requirements for installation and operating conditions, cable design characteristics and test for OPPC (optical phase conductor), used for carrying current as well as communication and data transmission. The corresponding environmental declaration can be built according to IEC TR 62839-1. The OPPC is a substitute for a conventional phase bare conductor containing optical fibres. Usually, the fibres are embedded loosely in protective buffer tubes. To fulfil mechanical and electrical requirements, an armouring of one or more layers with aluminium, aluminium alloy, and aluminium clad steel, galvanized steel or a mixture of them is helically stranded.