Function And Influence Of Tension Clamp In Power Fittings

Power fittings are various metal accessories for constructing power transmission systems. Power fittings are iron or aluminum metal accessories widely used in power transmission lines, collectively referred to as fittings. According to their functions and structures, they can be divided into categories such as suspension clamps, tension clamps, UT clamps, connection fittings, splicing fittings, protection fittings, equipment clamps, T-type clamps, busbar fittings, and wire pulling fittings; according to their uses, they can be used as line fittings and transformer fittings.
Suspension clamp Functions
Tension clamps are used to fix conductors to withstand the tension of the conductors and hang the conductors on tension strings or poles. It is used to fix conductors or lightning conductors on the tension insulator strings of non-linear poles and towers, and plays an anchoring role. It is also used to fix the wires of the wire pulling towers, and is used for corners, splicing, and terminal connections. Spiral aluminum-clad steel wire has extremely strong tensile strength and no concentrated stress, which protects and assists in vibration reduction for optical cables.
Classification of tension clamps
Tension clamps can be roughly divided into two categories according to their structure and installation conditions.
Category 1: The tension clamp must bear the full tensile force of the conductor or lightning conductor, and the gripping force of the clamp shall not be less than 90% of the rated tensile force of the installed conductor or lightning conductor, but it does not act as a conductor. This type of clamp can be removed after the conductor is installed and used separately. This type of clamp includes bolt-type tension clamps and wedge-type tension clamps.
Category 2: In addition to bearing the full tensile force of the conductor or lightning conductor, the tension clamp also acts as a conductor. Therefore, once this type of clamp is installed, it must not be disassembled again, and it is also called a dead wire clamp. Because it is a conductor, the installation of the clamp must comply with the provisions of the relevant installation and operation procedures and be carried out carefully.
Most hardware needs to withstand a large tensile force during operation, and some must also ensure good electrical contact at the same time. It is related to the safety of the conductor or tower. Even if one is damaged, it may cause a line failure. Therefore, the quality, correct use and installation of hardware have a certain impact on the safe power transmission of the transmission line.