The power line is also called power supply line, equipment line, power line, connecting power line, power supply line, equipment power supply line, etc. It is a wire that transmits current, and the current transmission method is the point-to-point transmission. In terms of usage, power cords can be divided into DC power cords and AC AC power cords. There are many types of AC power cords, which can be divided into the following types in terms of materials used:
1. Shielded insulated power cord: It can be applied to the general occasions of various electrical equipment for mobile connection, and it is also suitable for the connection of electrical mobile equipment.
2. Universal rubber plastic power cord: used for the connection of electrical equipment power, lighting, telecommunication equipment and instrumentation with AC rated voltage of 450V to 750V and below, as well as the installation of internal power cords.
3. Rubber-plastic flexible power cord: mainly used for power lighting connection, instrumentation, medium and light mobile appliances (household appliances, power tools, etc.); most of them are AC 300C grade, and the working voltage is AC 750V and below.
4. General-purpose rubber-sheathed rubber power cord: The general-purpose rubber-sheathed rubber power cord has a wide range of applications. It can be applied to all general occasions of various electrical equipment requiring a mobile connection, including electrical appliances used in various departments of the industrial and agricultural insulated power cord industry. Mobile device connection.
5. Rubber power cord for mining: mainly used for rubber power cord products for mining industry ground and underground equipment, involving mining electric drill rubber power cord, rubber power cord for communication and lighting equipment, mining and transportation rubber power cord, cap lamp rubber Power cord, underground mobile substation power supply rubber power cord.
In addition to the above, there are earthquake rubber power cords, drilling rubber power cords, etc.; since the specifications and systems of AC power used in each country are different, the safety certification standards for AC power cords are also different in each country. For example, China is CCC (3C) certification, the United States is UL certification, the United Kingdom is BS certification, Australia is SAA certification, Europe is VDE certification, and so on.
