NLL Bolted type strain clamp

Tension clamp is one type of single tension hardware that used for completing the tensional connection on a conductor or cable, and it provides mechanical support to the insulator and conductor. It is usually used with fitting like clevis and socket eye on the overhead transmission lines or distribution lines.

Bolted type tension clamp is also called dead end strain clamp or quadrant strain clamp.

Depending on the material, it can be divided into two series: NLL series tension clamp is made of aluminum alloy, while the NLD series is made of malleable iron.

NLL tension clamp can be classified by the conductor diameter, there are NLL-1, NLL-2, NLL-3, NLL-4, NLL-5 (the same for the NLD series).

Product Description

NLL series aluminum alloy strain clamp (bolt type) is suitable for 10kV and below overhead lines. Aluminum conductor or steel core aluminum wire is fixed on the tension pole. Overhead insulated aluminum conductor and insulated aluminum cover are used together to provide insulation protection.

Structural characteristics

Executive standard
In line with GB/T 2314 “General technical conditions for electric power fittings” and conform to IEC, BS, GB AND ANSI Technical standard request and type test stipulations.

Raw materials

High-strength corrosion-resistant aluminum alloy material;
Insulation cover material polyethylene (black);

The connection method

The product is suitable for overhead insulated aluminum stranded wire;
The clamps are bolted to other accessory products.

Use

The bolt type tension clamp is suitable for fixing and tightening the overhead insulated conductor on the end of the end of the overhead insulated conductor with rated voltage of 10kV and below.

Structure Feature

1.The fuselage is made of high strength aluminum alloy
2.Smooth surface, long service life or galvanized
3.Convenient installation
4.No waste of electric energy
5.The clamp is made of high-strength, anti-oxidation aluminum alloy die-casting, without hysteresis and eddy current, and is an energy-saving fitting; the product is bolted and has good grip.

Specification and Technical Data

Bolted type strain clamp

PG series aluminum alloy strain clamp (bolt type) is suitable for 10kV and below overhead lines. Aluminum conductor or steel core aluminum wire is fixed on the tension pole. Overhead insulated aluminum conductor and insulated aluminum cover are used together to provide insulation protection.

1. The fuselage is made of high strength aluminum alloy
2. Smooth surface, long service life or galvanized
3. Convenient installation
4. No waste of electric energy