GW-4 Double Column Horizontal Open Type Outdoor High Voltage Isolation Switch
Product structure features
♦ The contact spring adopts an external pressure type, so as to avoid accidents caused by the spring current-carrying failure.
♦ The conductive tube adopts the square aluminum alloy tube; the flexible connection is made from copper; the conductive contact surface is silver-plated; high mechanical strength and good through-current effect.
♦ The drive parts adopt stainless steel axle pin and composite axle sleeve with less friction and reliable drive.
♦ A reliable interlock device is arranged between the main earthing knife-switch and earthing knife-switch to prevent incorrect manipulation effectively.
♦ The mounting base is fully-sealed, which can effectively prevent water and dust. The bearing pedestal is provided with an oil filler hole and can be maintained without power cut, thus improving the reliability and convenience of the switch.
♦ Large steel parts are hot-dip galvanized with good appearance quality and strong anti-corrosion capability.
Products details
Product and installation dimensions
Use environment
1. Altitude; Not more than 3000m.
2. Ambient air temperature; Upper limit 40 ℃, lower limit – 25 ℃.
3. Wind emission shall not exceed 35m / S.
4. The seismic intensity is more than 8 degrees.
5. The pollution level shall not exceed level II.
6. The icing thickness shall not be greater than 10mm.
7. The installation site shall be free from inflammable and welding hazards, chemical corrosion and violent vibration.