Product

0.22kV ~ 220kV AC system with composite jacket (YH series), porcelain jacket (Y series), metal oxide arrester, suitable for 0.22kV "220kV AC system overvoltage protection, at the same time, according to the different needs of users, produce a variety of arresters suitable for special areas and occasions.

1. Ambient temperature is - 50°C ~ + 50°C;

2. Altitude does not exceed 1000m;

3. The power frequency voltage applied to the arrester for a long time should not exceed its continuous operating voltage;

4. The maximum wind speed does not exceed 45m/s;

5. Areas with a seismic intensity of 7 degrees or less.

1. DC reference voltage test (U1mA);

2. DC leakage current test at 0.75U1mA;

3. Partial discharge test;

4. Sealing performance test;

5. Continuous current test;

6. Power frequency reference voltage test (under resistive current 1mA);

7. Residual voltage test at nominal current;

8. Appearance inspection.

1. Product model

2. Structural type

3. Environmental requirements (pollution level, altitude, etc.)

4. Required accessories (counters, monitors, disconnectors, etc.)

5. Other special requirements beyond the standard requirements