What are the product classifications of wires and cables for electrical equipment?

There are many kinds of wire and cable products for electrical equipment on the market, which are difficult for ordinary consumers to distinguish. So what are the main categories of wire and cable products? What are the product naming principles of wire and cable? The editor brings you a brief understanding of relevant content knowledge.

1. Classification of wire and cable products for electrical equipment

There is no strict boundary between wire and cable. Generally speaking, products with few cores, small diameter and simple structure are called wires, products without insulation are called bare wires, and other products are called cables. Larger conductor cross-sectional area (greater than 6mm2) is called large wire, smaller conductor cross-sectional area (less than or equal to 6mm2) is called small wire, and insulated wire is also called cloth wire.

The complete naming of wires and cables is usually complicated, so people sometimes use simple names (usually the names of categories) combined with model and specifications to replace the complete names. For example, "low voltage cable" means all plastic insulated power cables of the 0.6/1kv class.

2, wire and cable products are mainly divided into the following categories

(1) Bare wire and bare conductor products:

The main features of this type of product are: pure conductor metal, no insulation and sheath, such as steel core aluminum stranded wire, copper aluminum bus, electric locomotive lines, etc. The processing technology is mainly pressure processing, such as melting, rolling, drawing, stranding/stranding, etc. Products are mainly used in suburban, rural areas, users of the main line, switch equipment.

(2) Power cable:

The main features of this type of product are: the insulation layer is squeezed (wound) outside the conductor, such as overhead insulated cables or multi-core stranded wires (corresponding to the phase, zero and ground wires of the power system), such as two-core overhead Insulated cables or add a sheathed layer, such as plastic/rubber sheathed wires and cables. The main process technologies include stretching, stranding, insulation extrusion (wrapping), wiring, armor, sheath extrusion, etc. Different process combinations for different products are different. Such products are mainly used for power generation, distribution, transmission, transformation and power supply lines in the transmission of strong electric energy, with high current (tens of amperes to thousands of amperes) and high voltage (220V to 500kV and above).

(3) Wire and cable for electrical equipment:

The main features of this type of product are: a wide range of varieties and specifications, a wide range of applications, and more use at 1kV and below. In the face of special occasions, we continue to introduce new products, such as fire-resistant cables, flame-retardant cables, low-smoke halogen-free, low-halogen cables, rodent-proof cables, oil-resistant/cold-resistant/temperature-resistant/wear-resistant cables, medical/agricultural/mining cables, Thin-walled wires, etc.

(4) Communication cables and optical fibers:

With the rapid development of the communication industry in the past two decades, products have also developed at an amazing speed. From simple telephone and telegraph cables in the past to thousands of pairs of voice cables, coaxial cables, optical cables, data cables, combined communication cables, etc. Such products generally have small and uniform structural dimensions and high manufacturing precision requirements.

(5) Electromagnetic wire (winding wire):

Mainly used for various motors, instrumentation, etc.

3, wire and cable product naming principles

Wire and cable product name mainly includes the following:

(1) Product application or size category name;

(2) The material or type of product structure;

(3) Important or additional characteristics of the product;

The names are basically in the above order. Sometimes, in order to emphasize important or additional features, features will be written before the corresponding structural description.