Specification and Application of Wire and Cable

In the industrial sector, the choice of wire and industrial cable is crucial for the safe and reliable operation of electrical systems. Different specifications and types of wire and cable are suitable for a variety of different industrial scenarios to meet different electrical connection needs. The following is a detailed introduction to the specifications of wire and cable commonly used in the industrial field and its main uses, hoping to provide you with a more comprehensive understanding.

Single core wire and cable

Single-core wire and cable are mainly 1.5mm², 2.5mm², 4mm² and other specifications, usually using copper conductors. They are suitable for power connection, lighting circuit, control circuit and other scenarios of industrial equipment. Due to its good electrical conductivity and wear resistance, single-core wire and cable can transmit power stably and ensure the normal operation of equipment.

Multi-core wire and cable

Multi-core wire and cable common specifications are 2 core, 3 core, 4 core, etc., suitable for different electrical connection needs. They are widely used in industrial automation systems, machine equipment connection, signal transmission and other scenarios. Multi-core wire and cable has good anti-interference ability and stability, and can transmit multiple signals at the same time to improve the overall efficiency of the system.

PVC insulated wire and cable (PVC cable)

PVC cable common specifications are 0.75mm², 1.0mm², 1.5mm², etc., suitable for different voltage levels. They are suitable for electrical connection of general industrial equipment, low-voltage power transmission, architectural lighting and other scenarios. PVC wire and cable has good insulation performance and weather resistance, suitable for use under various environmental conditions.

Crosslinked polyethylene insulated wire and cable (XLPE cable)

XLPE cable common specifications are 6mm², 10mm², 16mm², etc., suitable for medium and low voltage power transmission. They are suitable for power transmission, distribution systems, underground cables and so on in industrial plants, buildings and other places. XLPE cable has excellent heat and chemical resistance, and can maintain stable electrical performance in harsh working environments.

Flame retardant wire and cable

Flame-retardant wire and cable common specifications are 1.5mm², 2.5mm², 4mm², etc., with flame-retardant material sheath. They are suitable for industrial sites, buildings and other scenes with high fire safety requirements. Flame retardant wire and cable has good flame retardant performance and high temperature resistance, which can effectively reduce the fire spread and harm when the fire occurs.

When selecting wire and cable, factors such as the working environment, electrical load, and safety standards should be taken into account to ensure that the selected wire and cable meet the actual needs and can ensure the safe and reliable operation of the electrical system. Different specifications and types of wire and cable play an irreplaceable role in the industrial field, providing reliable electrical connection support for industrial production.

Classification of wire and cable

Wire and cable can be divided according to the structure.

• Bare conductor: composed of conductor (usually copper or aluminum), without insulation and jacket layer, suitable for overhead lines, electrical equipment grounding.

• Cloth wire: A fabric insulation layer is wrapped on the bare wire, which is suitable for general distribution lines in dry, wet and flammable places.

• Plastic insulated wire and cable: using plastic materials (such as polyvinyl chloride, cross-linked polyethylene, etc.) as insulation layer and sheath layer, with good corrosion resistance, wear resistance and electrical properties.

• Rubber insulated wire and cable: with rubber material as insulation layer and sheath layer, it has good elasticity, cold resistance and moisture resistance.

Type of wire and cable

The model of the wire and cable consists of the following parts.

• Use code: indicates the use of wire and cable, such as: B- indicates construction; J- means mechanical and electrical; N- for agricultural use; Y- for ship.

• Conductor code: indicates the material of the conductor, such as: copper conductor is represented by T; Aluminum conductors are denoted by L.

• Insulation layer code: indicates the material of the insulation layer, such as: polyvinyl chloride insulation is represented by V; Cross-linked polyethylene insulation is represented by Y; Rubber insulation is denoted by R.

• Sheath layer code: indicates the material of the sheath layer, such as: polyvinyl chloride sheath is represented by V; The polyethylene sheath is denoted by Y.

• Other code: indicates some special structure or performance of wire and cable, such as: armor is represented by Z; Flame retardant is represented by W; Fire resistance is indicated by F.