Medium-voltage switchgear W12 – 907521

compactair-insulatedpower distribution

The metal-encapsulated, air-insulated mediumvoltage switchgears, Type W 12 are for universal application: They range from compact ring cable switchgears up to complex power distribution switchgears. Tailored to meet the needs of public utility networks and power supply companies in industry and municipal buildings. These medium-voltage switchgears meet the user's specific requirements in full and ensure a satisfactory power distribution. The switch panels of Type W 12 are installed in closed electrical operating areas which are only to be entered by skilled personnel and appropriately instructed persons. The equipment can be used at an altitude of up to 1000 m above sea level. For installations above an altitude of 1000 m the rated insulating level of the switchgear must be corrected accordingly. The switch panels are designed for use under normal operating conditions in compliance with the standard EN 62271-1. The design of the air-insulated switch panels corresponds to the specifications of the EN 62271-200. The resistance to accidental arcs of the switch panels has been determined at 16 kA and 20 kA; 1 s, by and independent testing institute. The installed switchgear equipment is designed in compliance with EN 62271-1.