... 1200mm^2 for fixed laying in power transmission and distribution lines with A/C 50HZ, and rated voltage of 1kv and ... cablesSuitable for indoors, tunnel, cable trench and occasions alike, with no capacity for mechanic external force. Single-core cable forbidden ... indoors, tunnel, cable trench, Silo and directly burial with a certain capacity for mechanic external force and stretching forceVLV32aluminum ...