Isolating Switch
1. Altitude not exceeding 1000m
2. Ambient air temperature: upper limit+40 ° C in general area, lower limit 30 ° C in general area
3. The wind pressure shall not exceed 700Pa. (equivalent to wind 34m/s)
4. The seismic intensity shall not exceed 8 degrees;
5. No place with frequent violent movements;
6. The ordinary installation site shall be free of gas and steam that seriously affect the insulation and conductivity of the disconnector. Chemical deposition, salt spray, dust and other explosive and corrosive substances.
7. Anti pollution type is applicable to heavily polluted areas, but there should be no fire and explosive substances.
purpose
High voltage disconnector is a kind of high-voltage equipment used to connect or isolate power supply under the condition of voltage and no load.
□ Service conditions
1. Altitude not exceeding 1000m
2. Ambient air temperature: upper limit+40 ° C in general area, lower limit 30 ° C in general area
3. The wind pressure shall not exceed 700Pa. (equivalent to wind 34m/s)
4. The seismic intensity shall not exceed 8 degrees;
5. No place with frequent violent movements;
6. The ordinary installation site shall be free of gas and steam that seriously affect the insulation and conductivity of the disconnector. Chemical deposition, salt spray, dust and other explosive and corrosive substances.
7. Anti pollution type is applicable to heavily polluted areas, but there should be no fire and explosive substances.
□ Product model description
□ □ □ - □ □ / □ - □
| | | | | | |______ characteristic parameter
| | | | | |___________ Rated current A
| | | | |________________ The letter "D" indicates the grounding switch; The letter "R" means with fuse
|| | | The letter "C" indicates a wall bushing; "G" means high altitude; "W" indicates stain resistant type
| | | |____________________ Rated voltage KV
| | |_________________________ Design No
| |_____________________________ "N" means indoor, and "W" means outdoor
|_________________________________ "G" stands for height isolating switch
□ Standards adopted
The high-voltage disconnectors produced by our factory meet the following standards:
GB11985 AC High Voltage Disconnectors and Earthing Switches GB11022 General Technical Conditions for High Voltage Switchgear
GB311.1 Insulation Coordination of High Voltage Transmission and Transformation Equipment GB/T16927.1~2 High Voltage Test Technology
GB2706 Test Method for Dynamic and Thermal Stability of AC High Voltage Electrical Apparatus GB3309 Mechanical Test of High Voltage Switchgear at Room Temperature
GB5582 Pollution Level of External Insulation of High Voltage Power Equipment GB/T13540 Seismic Resistance Test of High Voltage Switchgear
