First, classification of wire and cable

Bare wire: wire without insulation, mainly used for outdoor overhead use. Electromagnetic wire: The wires used on all electromagnetic coils are all electromagnetic wires. Electromagnetic wire for the wire process requirements are high, need to adapt to strong vibration, centrifugal, high temperature, corrosion and other harsh environment. Power cable: mainly used to transmit and distribute electrical energy. It is characterized by coating the conductor with oil-impregnated paper, rubber or plastic. This kind of cable has strong corrosion resistance and insulation, can withstand high pressure, and has low requirements for the use environment.

Wire and cable for electrical equipment: a common wire in daily life, mainly used for the assembly of electrical equipment and meters, diverting electrical energy.

Communication cable: mainly used for TV, telephone, network, broadcast signal transmission. It is characterized by large signal capacity and strong anti-interference ability.

The communication cable is wrapped with a shielding layer inside the insulation layer

Second, the classification of household wires

Household wire, belonging to electrical equipment wire and cable, commonly used BV wire (hard wire) and BVR wire (soft wire).

For lighting, electrical equipment, etc., BV line has an inherent advantage in terms of price. In addition, the tensile resistance, extrusion resistance, corrosion resistance and other capabilities of the hard wire are much stronger than that of the BVR line. The BV line has become the main force in the home improvement market.

BVR lines are usually used for communication, instrumentation, etc., and the current carrying capacity of BVR lines for high-frequency currents is much higher than that of BV lines.

Third, where is the cable bridge needed

Cable bridge is divided into three types:

Ladder through bridge - generally used for power cables with larger diameters.

Trough through bridge - generally used for network, communication, fire and other communication cables.

Tray type through bridge - suitable for power cables and signals, a wide range of application.

Fourth, what accessories are needed for laying cables

Commonly used electrical accessories are cable terminal junction box, cable intermediate junction box, connecting pipe and wiring terminal, steel plate wiring slot, cable bridge, etc.

Five, what is the main electrical wiring

Electrical main wiring refers to a transmission circuit used in a power system for the transmission of electrical energy or the extraction of power from high-voltage equipment.

The entry and appearance of the power supply is the basic link, and the bus is the intermediate link.

Six, the selection of wire and cable lines need to pay attention to matters

The rated voltage (insulation) of the wire should be 1.5 times greater than the actual voltage.

The large carrying current of the wire should be greater than 1.5 times the actual current.

For longer wire laying, the voltage drop should be calculated according to the length.

To carry the voltage and current when the protective device is operating.

Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable. Hotline: 16678668098