Introduction of Cable Types and Selection Criteria

China's wire and cable product classification China's wire and cable product classification is divided into the following five categories according to its use:

1. Bare wire

2. Winding wire

3. Power cable

4. Communication cable and communication cable

5. Wire and cable for electrical equipment

Common cable types and their selection standard wire types: 

The letter B indicates the cloth wire.

The letter V indicates the polyvinyl chloride.

The letter R indicates the soft wire (the conductor is a lot of filaments twisted together).

And the copper core symbol, Hard wire (common single core conductor) symbol omitting is not indicated.

1BV

Represents a single copper core PVC insulated wire, no sheathed wire. 

Applicable to wire and cable for power equipment, household appliances, instrumentation and telecommunications equipment with AC voltages of 450/750V and below. B in the BV line should mean "insulated wire." 

For details, please refer to the “Industrial and Civil Power Distribution Design Manual”, Third Edition P560. Appendix 1 Introduction to the wire and cable product model preparation method.

2BVR

Represents PVC insulated, copper (soft) cloth wires, often referred to as cords.

Because the wires are soft, they are often used in electric power dragging and motor connections, as well as where the wires often move slightly.

3BVV

Indicates copper core PVC insulated, PVC round sheathed cable, copper core (hard) cloth wire, often referred to as sheath wire, single core is round, double core is flat.

Often used for surface mounted wires.

4BVVB

Represents a copper core PVC insulated PVC flat sheathed cable.

Applicable to the requirements of high mechanical protection, moisture, etc. can be applied or dark.

5SYV

Solid polyethylene insulated RF coaxial cable. Suitable for closed circuit monitoring and cable TV projects.

6RG

Represents a physically foamed polyethylene insulated cable.

Commonly used in coaxial fiber-optic hybrid network (HFC) to transmit data analog signals, as well as video transmission, communication systems and signal control systems.

8RVVP

Represents a copper core PVC insulated PVC sheathed round connection flexible cable.

Applicable to building intercom, anti-theft alarm, fire protection, automatic meter reading and other projects.

9RVS

Indicates a copper core PVC stranded connection wire.

Commonly used in household appliances, small power tools, instrumentation, control systems, broadcast audio, fire, lighting and control lines.

VV (VLV)

Represents a copper (aluminum) core PVC insulated PVC sheathed power cable.

It is suitable for laying in indoors, tunnels, and trench pipes. 

It can not bear the mechanical external force and can be directly buried.