... cables,PVC insulated power cables1. Rated voltage: Uo/U: 0.6/1kV2. No. of core: Single-core, Two-core, Three-core, Four-core, Five-core,Three core ... and earth(Three primary conductor and one Neutral conductor), Three core ... laying indoors,in tunnel or cable trench,single-core cable in magnetic duct is not permissiblespecification: ...