What are the classifications of power fittings and their applications?

1. According to the function and structure, it can be divided into categories such as suspension clamps, tension clamps, UT clamps, connecting fittings, splicing fittings, protection fittings, equipment clamps, T-shaped clamps, busbar fittings, pull wire fittings, etc.; according to use It can be used as line fittings and transformer fittings.
2. According to the product unit of power fittings, it is divided into four units: malleable cast iron, forging type, aluminum, copper and aluminum and cast iron.
3. It can also be divided into national standard and non-national standard.
4. According to the main performance and use of hardware, hardware can be roughly divided into the following categories:
1) Suspension fittings, also known as support fittings or suspension clamps. This kind of hardware is mainly used to hang wire insulator strings (mostly used in linear pole towers) and to hang jumpers on insulator strings.
2) Anchor fittings, also known as fastening fittings or wire clamps. This kind of hardware is mainly used to fasten the terminals of wires and fix them on the wire-resistant insulator strings. It is also used to fix the terminals of lightning protection wires and anchor the pull wires. Anchor fittings bear all the tension of wires and lightning protection wires, and some anchor fittings become conductors.
3). Connecting hardware, also known as hanging wire parts. This kind of hardware is used to connect insulators into strings and to connect hardware to hardware. It bears mechanical loads.
4). Connect the hardware. This kind of hardware is specially used to connect various bare wires and lightning protection wires. The connection bears the same electrical load as the conductor, and most connection fittings bear all the tension of the conductor or lightning protection wire.
5), protective hardware. This kind of hardware is used to protect wires, insulators, etc., such as voltage equalizing rings to protect insulators, heavy hammers to prevent insulator strings from being pulled out, and anti-vibration hammers and protective strips to prevent wire vibrations.
6), contact with metal tools. This kind of hardware is used to connect hard busbars, soft busbars and outlet terminals of electrical equipment, T-connections of wires and unloadable parallel connections, etc. These connections are electrical contacts. Therefore, contact hardware is required to have higher electrical conductivity and contact stability.
7) Fixed hardware, also known as power plant hardware or high current busbar hardware. This kind of hardware is used for fixing and connecting various hard busbars or soft busbars and pillar insulators in power distribution devices. Most of the fixed hardware is not used as a conductor, but only plays a role in fixing, supporting and suspending. However, since these fittings are used for large currents, all components should have no hysteresis loss.