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By certification 
Feature：
1.SF6 gas insulated : SF6 is a electric insulating gas of non-poison and nonflammable, and have a good arc suppression feature.
2.Bushing diversity: Except for standard porcelain bushing, there are also provide various rubber bushing.
3.Visible open circuit and opening and closing situation: It is easy to see the color sign of the main contact place indicator ( green open circuit; red closing). The indicator and main conductor always keep on direct connecting, make sure show the conductor state.
4.Fast operation: Used by spring stored energy operation system., make sure fast switch on and switch off operate ( no more than 1 second)
5.Could provide controller: Stocked by electric controller, could operated in ground or operate by the main controller through RTU screen
6.Solidity switch: Switch was made by solidity and anticorrosion material, make sure have a long useful life (30 years) have the pole equipment feature.
7.Standard: it will filled full SF6 before delivery, and deal with seal. Test by IEC60265; GB3804.
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