According to the Japan Electric Wire Industry Association in 1977, the classification of wire and cable is as follows

1. bare wire 2, coiled wire 3, communication cable 4, power cable 5, covered wire

1. Bare wire -> as the name implies, no insulation materials, the main conductive materials: gold, silver, aluminum, platinum, etc.

2. Coiled wire-> similar to the telephone handle curve.

3. Communication cable -> wire and cable mainly used in communication, telephone lines are obviously the most obvious example.

4. Power cable -> generally for high-voltage transmission lines.

5. Covered wire -> generally for low-voltage transmission lines.

  Wire and cable can be broadly divided into the above five categories. But according to the specific material, shape, structure, use of different can be divided into 74 categories. For example, round wire, paper reel wire, city paper insulated communication cable, alarm wire, etc.