GW4 Type serial High Voltage Outdoor isolator /Disconnector /disconnecting switches comply with requirements in GB1985-2004 High-voltage Allemating Disconnecting Switches and Earthing Switches,IEC62271-102:2002AC Disconnecting Switches and Earthing Switches ,and IEC60694:1996 Common Clause for High voltage Switchgear and Control Devices.

 Ambient Condition:

• Altitude:≤1000-3000m

•Ambient temperature:no more than 40°C and no less than -30°C(no less than -40°C in alpina areas )

 •Wind speed:≤34m/s

•Earthquake intensity:≤8 degree

•Air pollution :IV

•Ice thickness:≤100mm

•the installation location shall be free from flammable ,explosive dangerous articies,chemical corrosion and flerce vibration 

  •The pollution grade of post insulator :o for general type and 2 for pollution resistance type

"OEI ELECTRIC" is engaged in manufacturing,development,service ,solution,maintenance & marketing of H.V./L.V. power distribution equipments,switchgears,transformers,substations.and electrical devices .for all over the world. As a leading & professional manufacturer in China,we mainly manufacture below items and supply their electrical accessories:

·         H.V.& L.V.switchgears

·         Power Distribution Board (PDB)

·         M.V solid insulated switchgears (SIS)

·         compact substations /Package substation/kiosk substation

·         single phase & three phase pad mounted transformers(PMT)

·         Gas insulated switchgears(GIS)

·         Cable Brach box 

·         Blokset Switchboards/switchgears

·         Automatic feeder Voltage Regulator 

·         Ring main units (RMU)

·         Oil-immersed transformers and dry type transformers 

·         Vacuum circuit breakers (VCB),Air circuit breakers(ACB),vacuum switch,vacuum contactor