HGN17-12 Indoor AC Metal-clad Ring Network Switchg

HGN17-12 Indoor AC Metal-clad Drawer Switchgear (Switchgear) is a kind of single-bus breaking transmission and distribution controller used to receive and distribute electric power. It is mainly used in power plant, transformer station distribution, substation power receiving/distribution, large HV motor start-up and others in the power distribution and utility system of industrial and mining enterprises and institutions, for the purpose of control, protection or surveillance. 2. Normal Service Conditions Ambient temperature: -10ºC +40ºC Ambient humidity: Daily average relative humidity ≤95% Monthly average relative humidity ≤90% Elevation of installation place at most: 1,000m Seismic intensity at most VIII Free of severe contamination, chemical corrosion or severe vibration 3. Special Service Conditions If the switchgear is installed in an area at an elevation exceeding 1,000m, DO negotiate with the manufacturer in ordering, to take necessary measures of reinforced insulation. If the maximum ambient temperature exceeds ±40ºC, DO NOT reduce the rated current-carrying capacity, without the manufacturers confirmation in ordering. If the switchgear is operated in a climate with high humidity and/or large temperature difference, DO take special measures of condensation prevention. In case of other special requirements, please negotiate with the manufacturer in ordering.