Overview of wire and cable models and specifications

China [CN]

1、 Common sense of wires and cables: wires and cables are used to transmit electric (magnetic) energy, information and realize electromagnetic energy conversion. Wires and cables in the broad sense are also referred to as cables. Cables in the narrow sense refer to insulated cables. It can be defined as an assembly consisting of the following parts: one or more insulated cores, and their respective possible coating layers, Total protective layer and outer protective layer. The cable can also have additional uninsulated conductors.

Wire and cable classification:

1. Bare wires and bare conductor products: The main characteristics of this type of products are: pure conductor metal, without insulation and sheath layer, such as steel-cored aluminum lines, copper-aluminum bus bars, electric locomotive wires and cables, etc.; the processing process is mainly pressure processing, such as melting, rolling, drawing, crimping/tight crimping, etc.; the products are mainly used in suburban areas, rural areas, user mainlines, switch cabinets, etc.

2. The main characteristics of this type of power cable are: extruding (winding) the insulation layer outside the conductor, such as overhead insulated cable, or laminating several cores (corresponding to the phase line, zero line and ground wire of the power system), such as overhead insulated cable with more than two cores, or adding a sheath layer, such as plastic/rubber sheathed wire and cable. The main process technologies include drawing, stranding, insulation extrusion (wrapping), cabling, armouring, sheath extrusion, etc. The different process combinations of various products have certain differences. The product is mainly used for the transmission of strong electric energy in power generation, distribution, transmission, transformation and power supply lines, with large current (tens of amperes to thousands of amperes) and high voltage (220V to 35kV and above).

3. The main characteristics of wires and cables for electrical equipment are: a wide range of quality specifications, wide range of applications, and a wide range of voltages of 1KV and below. In the face of special occasions, new products are constantly derived, such as fire-resistant cables, flame-retardant cables, low-smoke halogen-free/low-smoke halogen-free cables, oil-resistant/cold-resistant/temperature-resistant/wear-resistant/cables, medical/agricultural/mining/cables, etc.

Of course, there are many types of wires and cables used to connect equipment in the market. To find a suitable connecting cable, it is necessary to meet the required specifications. For more cable products, please visit or search more:

https://www.omgevcable.com/ev-charging-cables/ev-charging-cables.html