1. According to the classification of the core of the cable, they can be divided into single-core cable and multi-core cable;
2. According to the classification of the cable conductor material, they can be divided into copper-core cable and aluminum-core cable;
3. According to the classification of insulation, they can be divided into oil-impregnated paper-insulated cables and rubber-insulated cables and plastic-insulated cables;
4. According to the classification of the cable inner sheath, they can be divided into lead-clad cables, aluminum-clad cables and rubber-sheathed cables and plastic-sheathed cables;
5. According to the classification of the cable sheath, they can be divided into steel armoured cable, steel wire armoured cable and unarmoured cable;
6. According to the classification of the envelope structure, they can be divided into a total package cable, shielded cable and sub-phase lead package cable.
