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By certification 
27KV HIGH VOLTAGE SURGE ARRESTER
Product Picture
Features
Better Electrical performance & reliability
Ease of Installation-Light weight & smaller size
Better Operating conditions
Explosion & shatter proof & less mechanical
damage to nearby equipment
Better performance in polluted environment
Vandalism resistant
Free from Moisture ingress
Higher safety
Higher mechanical strength
Insensitive to UV radiation
High resistance to Ozone & Corona
Excellent Tracking resistance
General
Ratings: 0.22-500KV (poroelain), 0.22-220KV (composite)
Application: for protection of power transmission and distribution system from over-voltage.
Working Condition
Ambient air temperature: -40°C-+40°C;
Altitude:<=2000m;
Frequency: 48Hz~62Hz;
Power frequency voltage applied between terminals of surge arrester must not exceed continuous operating voltage of surge arrester;
Earth quake intensity is less than 8 degree;
Max. wind speed is 35m/s
Polymer Housed for Outdoor Application
http://www.cowin-electrical.com/
