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Common Models Of Power Fittings

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According to their functions and structures, power fittings can be divided into Suspension clamp, tension clamps, UT clamps, connection fittings, connection fittings, protection fittings, equipment clamps, T-type clamps, busbar fittings, and wire pulling fittings. Power fittings can be used as line fittings and transformer fittings according to their uses. Generally speaking, we distinguish power fittings by their performance and uses, and they are mainly divided into the following categories:
1) Suspension fittings. Also known as support fittings or suspension clamps. This kind of fittings is mainly used to suspend the conductor insulator string (mostly used for straight pole towers) and suspend jumpers on insulator strings. The following figure is a suspension clamp.

2) Anchor fittings. Also known as fastening fittings or wire-resistant clamps. This kind of fittings is mainly used to fasten the terminal of the conductor to fix it on the wire-resistant insulator string, and is also used to fix the terminal of the lightning arrester and anchor the wire. The anchor fittings bear all the tension of the conductor and lightning arrester. The following figure is a tension clamp.

3) Connection fittings. Also known as hanging wire parts. This kind of hardware is used to connect insulators into strings and to connect hardware with hardware. It bears mechanical loads. Such as hanging rings, hanging plates, ball head hanging rings, U-shaped screws, connecting plates, hooks, etc. The following figure shows a ball head hanging ring.

4) Connecting hardware. This kind of hardware is specially used to connect various bare wires and lightning conductors. The connection bears the same electrical load as the wire. Most of the connecting hardware bears the full tension of the wire or lightning conductor, such as the connecting tube and the parallel groove wire clamp. The following figure shows the parallel groove wire clamp.

5) Protective hardware. This kind of hardware is used to protect wires, insulators, etc., such as the equalizing ring for protecting insulators, the heavy hammer for preventing the insulator string from being pulled up, and the anti-vibration hammer, protective wire, spacer rod, etc. for preventing the wire from vibrating. The following figure shows the anti-vibration hammer.

6) Contact hardware. This kind of hardware is used to connect the hard busbar, soft busbar and the outlet terminal of the electrical equipment, the T-connection of the wire and the non-load-bearing parallel connection, etc. These connections are electrical contacts. Therefore, the contact fittings are required to have higher conductivity and contact stability, such as the T-shaped wire clamp in the figure below.

7) Wire-pulling fittings. Mainly used for the wire connection of the wire-pulling tower, it is divided into two types: wire tightening and connection. There are mainly wedge-shaped wire clamps and tension-resistant pre-twisted wires. The figure below shows a wedge-shaped wire clamp.

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