Brief Analysis Of The Future Development Trend Of Power Fittings

Product quality is not only related to the safe operation of the power grid, but also to the safety of people and property. As early as 1986, the relevant departments of the State Council included power fittings in the production license management. The production license units of power fittings are divided into malleable cast iron, forging, aluminum-copper-aluminum, and cast iron. According to the role of the product, it is usually divided into 9 categories: suspension clamps, tension clamps, connection fittings, connection fittings, protection fittings, wire pulling fittings, equipment clamps, T-type clamps, and fixed fittings, which are used in power transmission and transformation projects of various voltage levels.
The future development trend of power fittings products is mainly on energy-saving fittings products for power transmission and transformation lines and distribution lines above 500KV. Such as: aluminum alloy suspension clamps, pre-twisted power fittings, damping spacers, equalizing rings, energy-saving shock-proof hammers, and new non-magnetic materials instead of ferromagnetic materials to manufacture ordinary fittings for energy saving. All power fittings manufacturers can only continuously increase equipment investment, adopt advanced technology, improve product quality, and enhance market competitiveness.
Iron or aluminum metal accessories widely used in wires are collectively referred to as hardware. Most hardware needs to withstand large tensile forces during operation, and some also need to ensure good electrical contact at the same time.
There are many types of hardware with different uses, such as various wire clamps for installing wires, various hanging rings that make up insulator strings, various crimping tubes and repair tubes for connecting wires, various types of spacers on split wires, etc. In addition, there are various types of wire pulling hardware for poles and towers, and the size of the wires used for protection must be coordinated with each other. It is related to the safety of wires or poles. Even if one is damaged, it may cause line failure. Therefore, the quality, correct use and installation of hardware have a certain impact on the safe power transmission of transmission lines.
1. According to the function and structure, it can be divided into categories such as suspension wire clamps, tension wire clamps, connecting hardware, splicing hardware, protective hardware, equipment wire clamps, T-type wire clamps, busbar hardware, wire pulling hardware, etc.; according to the purpose, it can be used as line hardware and substation hardware.
2. According to the product unit of power fittings, it can be divided into forgeable cast iron, forging, aluminum-copper-aluminum and cast iron, a total of four units.
3. It can also be divided into national standards and non-national standards
4. According to the main performance and use of fittings, fittings can be divided into different types.
Iron or aluminum metal accessories widely used in power transmission lines are collectively referred to as fittings. There are many types of fittings with different uses, such as various wire clamps for installing conductors, various hanging rings for forming Insulator, various crimping tubes and repair tubes for connecting conductors, various types of spacer bars on split conductors, etc. In addition, there are various types of wire pulling fittings for poles and towers, and the size of the wires used for protection must be coordinated with each other.
Most fittings need to withstand large pulling forces during operation, and some must also ensure good electrical contact at the same time. It is related to the safety of the conductor or pole tower. Even if one is damaged, it may cause line failure. Therefore, the quality, correct use and installation of fittings have a certain impact on the safe power transmission of the line.