What is a power cable? Types and specifications of power cables and the difference between power cables and power cables

2022-05-23

Power cables are part of power cables. Power cable is a general term. What is a power cable? Types and specifications of power cables and the difference between power cables and power cables.

1. What is a power cable?

The wire diameter is thicker, generally 3 cores or 4 cores, the insulation between phases is thicker, and the outer side is protected by metal armor. Main line used for power supply system as three-phase industrial power supply or single-phase civil power supply. Cable erection is generally divided into two parts: lighting and power. Power supply refers to the cables that supply power to heavy-duty equipment, such as various motors, electric heating and other equipment. Because these devices will generate a large voltage drop when starting, if mixed into the lighting, it will affect the service life and cause unsafe factors. Generally, the type of power cable is YJV, that is to say, the thicker cables are mobile cables, and the control cables with an area of 2.5 square millimeters or a current loop of 4 square millimeters are all kvv and so on. The power cable type is used for power supply.

2. What is a power cable?

Power cables are used to transmit and distribute electrical energy. Power cables are often used in urban underground power grids, power station leads, internal power supply in industrial and mining enterprises, and underwater transmission lines across rivers and seas.

3. The difference between power cable and power cable

Electricity is a general term, power is only a sub-item, generally four or five lines, and lighting is generally three lines. Power cables carry continuous current, a wide range of voltage levels (from 1KV to 220KV), large current (large conductor cross-section), and a small number of cable cores, including 3-core, 4-core (three-phase four-wire system) and 5-core (three-phase five-wire system) wire system). Power cables are generally used for mechanical equipment, and power cables are used for lighting.