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ZW17-40.5Series Outdoor High-volt Vacuum Circuit Breaker


1 Overview
  ZW17-40.5 series Outdoor High-volt Vacuum Circuit Breaker, a three-phase AC 50Hz outdoor high-volt switchgear, is applicable for the 40.5 KV power distribution and transmission system to close or open the load current, over-load current, short-circuit current and so on.
2 Service and Installation Conditions
  Ambient temperature: from -30 to 40 (from -40 to +40 for the particular order).
  Height above sea level:≤ 1000m (&#118alue over 1000m should be indicated in advance.)
  Air humidity: relative humidity: ≤ 95% daily at average
                                   ≤ 90% monthly at average
  Wind pressure:  ≤ 700Mpa.
  Sunshine intensity:0.1 W/cm under the 0/5m/s wind velocity
  Maximum temperature difference daily allowed: 25
  Earthquake intensity: ≤ 8 degree
  Pollution class: class
  Far away from the place with the danger of explosion, collision, chemical corrosion, violent vibration