GW9-10 outdoor single-pole isolation switch

Type outdoor single-pole isolating switch Type outdoor single-pole isolating switch
Installation and operating instructions
Structure introduction
Type outdoor single-pole isolating switch, hereinafter referred to as the switch, is suitable for thousands-volt high-voltage transmission and distribution lines. Used to cut off and close unloaded single-phase or three-phase circuits with voltage.
The switch is for single-phase use in three-phase line systems. Its structure is simple, economical, applicable and convenient.
The rated current of the switch is A and A. They are composed of a base, a conductive part of a pillar insulator and a mechanical part. The opening and closing of the knife-type structure is used to cut off and close the circuit. Each phase switch blade consists of two conductive blades. Compression springs are installed on both sides of the blades. By adjusting the height of the spring, the contact pressure required for switching the switch blade can be obtained. When the switch opens and closes, the insulating hook rod operating mechanism part can be used to perform the closing movement. The switch knife has a self-locking device. The appearance of the switch is shown in Figure 1.
Two environmental conditions for use and main technical parameters
Environmental conditions for use
The elevation does not exceed meters
The maximum ambient temperature is not higher than ℃
The minimum ambient temperature is not low At ℃
The wind speed outside does not exceed meters/second
The earthquake intensity does not exceed the installation level
The location should be free of gases, vapor chemical properties, salt spray, dust, dirt, and dirt that seriously affect the insulation and conductive capabilities of the switch. Other explosive corrosive media.
The installation site should be free of frequent severe vibrations.
Main technical parameters
Model
Rated voltage
Thousand volts
Rated current in amperes
Limit through current in kiloamps
Second thermal stability current in kiloamps
Peak value
Effective value
Table 2 Contact force
Model
Contact pressure