1. Excellent fatigue resistance

Conductors and earth wires are one of the most concentrated parts of overhead distribution and transmission carrying loads. They are easily damaged in the event of fatigue. Damage to conductors and grounds almost always occurs on the contact surfaces between conductors, grounds and fixtures. Typical locations are between conductors, ground wires and overhanging clips, dead-end grips and joints. This is because the dynamic and static bending stresses are highest in these areas.

The opposite is true for prefabricated spiral fittings, which have a longer spiral, allowing the static bending stresses between the fitting and the conductor and earth wire to be evenly distributed over a larger area, avoiding the concentration points created by the fitting crimping.

When the prefabricated fixture is installed, the bending stiffness between the fixture and the conductor or earth wire will increase and the bending stress generated by wind vibration will be weakened.

2. Easy to install, consistent and maintenance-free

Prefabricated fittings can be easily installed by hand only, increasing the speed and efficiency of installation. It usually takes only a few minutes for a skilled person. And we only need to visually check the quality of the installation afterwards to ensure good consistency between different fittings installed by different people.

The widespread use of prefabricated fittings saves a lot of maintenance work and reaps economic benefits.

Dead-End Grips

3. High performance and energy savings

Ferromagnetic materials suffer from hysteresis losses and eddy current losses and were previously widely used with high energy consumption. As transmission capacity has increased, energy efficient fittings have become popular. And many prefabricated line fittings are made of ACS materials, which not only meet the requirements of line mechanical strength, but also consume less.

4. Better suitability

Prefabricated line fittings are designed for galvanised stranded wire, ACS stranded wire, aluminium stranded wire, aluminium stranded wire with steel cores and insulated cables.

Helical dead-ends for earth wire can be applied to bear full tension on earth wire. The products connect earth wire to tower (or pole) by way of matching fittings such as clevis thimble, socket eyes. etc. The products are ideal substitutes of traditional clamps such as bolt type tension clamps, compression type tension clamps and wedge-shaped type tension clamps.

5. Good corrosion resistance

Prefabricated line fittings use conductors or earth wires of the same material, reducing the electrical scorching sensation of different metal materials and extending the life of the fittings.

6. Application

With the above advantages, prefabricated line fittings are becoming increasingly popular, such as prefabricated dead-end pullers. Dangling wire clips, conductor connectors.

Hebei Boersen Photoelectric Equipment Technology Co., Ltd. is a professional new technology enterprise which develop, exploit, manufacture and sale Preformed Fittings Equipment, ADSS & OPGW Preformed Fittings, Electric Preformed Fittings and Electrified Railway Fittings.

Now we have the preformed fittings production equipment 20 sets, preformed fittings more than one million sets, can produce the OPGW, ADSS, OPCC use preformed strain clamp, preformed suspension clamp; conductor, ground wire, stay wire use preformed strain clamp, preformed suspension clamp, preformed splice fittings, protective fittings etc., at the same time provide the fastening clamp for vibration dampers, sprial vibration dampers, splice closures, termination box, cable margin supporters, downlead clamp, ground wire, tower, pole etc.