In today's social life, people's dependence on electricity is increasing day by day, and the requirements for the security of power grid power supply are getting higher and higher, especially the higher requirements for urban power grids. Therefore, it is one of the timely and effective measures to replace bare wires with insulated cables in the power supply lines of the city network. At the same time, the fittings should also take corresponding measures to make them have insulating functions. There are two methods. One is to apply insulating materials and design new fittings with insulating functions. The second is to design an insulating cover for the hardware to achieve the insulating effect.

use

JBJ series special-shaped parallel groove clamps are suitable for non-load-bearing splicing and branching of wires in overhead electrical lines, and are used together with insulating covers to protect and insulate.

Structural features

The structure of the wire clip is shown in the figure. The wire clip is composed of a body, bolts, nuts, and spring washers. The wire clip body is made of high-quality aluminum alloy material, which is manufactured by adjusting the trace metal particles inside the material and using excellent production technology; bolts, Nuts and spring washers are hot-dip galvanized to ensure excellent anti-corrosion performance.

Insulation cover performance characteristics

1. 1-10kV power frequency withstand voltage: ≥18kV pressure holding for 1 minute without breakdown;

20kV power frequency withstand voltage: ≥30kV hold voltage for 1 minute without breakdown;

2. Insulation resistance: >1.0x 10 days

3. Ambient temperature: -30℃- -90℃

4. Weather resistance: good performance after 1008 hours of artificial weathering test