1. Overview

Metal oxide surge arrester is a kind of advanced protection device to limit overvoltage. It is widely used in power generation, transmission and distribution systems to protect the insulation of electrical equipment from overvoltage damage.

Product implementation standard: GB11032-2020 "metal oxide lightning arrester without gap for AC system"

2. conditions of use:

1. Suitable for indoor and outdoor;

2, the ambient temperature is not higher than 40 ℃, not lower than -40 ℃;

3. The altitude is not more than 3000m;

4, the power frequency is not less than 48Hz, not more than 62Hz;

5. The power frequency voltage applied to the lightning arrester for a long time shall not exceed the continuous operating voltage of the lightning arrester.

6. Areas with seismic intensity of 8 degrees and below;

7. The larger wind speed shall not exceed 35 m/s.

3. structural features and characteristics

The metal oxide arrester is assembled by superposition of high-performance nonlinear resistor sheets, and is made into a core body through a special process. The composite insulating material is used as an insulating jacket, and a pressing molding and special packaging process are adopted to make it integrated.

Has the following characteristics:

1. Silicone rubber material has good insulation performance and strong hydrophobicity;

2, small size, light weight, easy installation;

Silicone rubber material can prevent the occurrence of vicious explosion accidents;

4. Good steep wave response characteristics, large impact current tolerance, low residual pressure and reliable action;

5. Strong dirt resistance and easy maintenance.