DCI Autos
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1. Product Introduction
Metal-oxide arresters adopt zinc oxide resistors with excellent nonlinear voltage-current characteristics. These arresters offer superior steep wave response, high current-carrying capacity, significant energy absorption capability, low residual voltage, and an ample protection margin. The protection margins for steep wave impulse, lightning impulse, and switching impulse residual voltage are uniform, providing optimal insulation protection for electrical equipment. Metal-oxide arresters have become the dominant product in overvoltage protection applications. |
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2. Standard Compliance
IEC 60099-4:2014: Surge arresters—Part 4: Metal-oxide surge arresters without gaps for a.c. systems, MOD. |
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3. Normal Working Conditions
✓Applicable for both indoor and outdoor usage.
✓Ambient Temperature: -40℃ to +40℃.
✓Altitude: Within 3000m (within 1000m for enamel-coated type).
✓Grid frequency: 48-52Hz (50Hz system) or 58-62Hz (60Hz system).
✓Power frequency voltage should not exceed the continuous operating voltage.
✓Earthquake intensity: 7 degrees or less.
✓Maximum wind speed: 35m/s.
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