... mobile electrical equipment . Rubber insualted wires are including many kinds of types, as follows: 1)rated voltage: 300/500v, 450/750v ... . D) rubber sheathed, moveable and flexible mine cables. 3) number of cores: One, two, three, four, five, six 4) general ... property of durability, so it is suitable for outdoor work touching oil pollution. 4) ZR model cable has the property of fire-resistance.