Conditions of Use
Ambient temperature
Ambient air temperature: upper limit +50℃, lower limit -40℃.
Relative humidity: 100%
The altitude does not exceed 1000m; 2000m; 3500m. (According to the requirements of the user when placing an order. It is not proposed as a conventional 1000m requirement.)
The wind pressure does not exceed 700pa (equivalent to a wind speed of 34m/s).
Earthquake intensity: 8 degrees.
Installation site: no fire, explosion hazard, no chemical corrosion and frequent severe vibration.
Pollution level: Class III, Class IV
Feature
SF6 gas insulation: SF6 gas is a non-toxic, non-flammable electrical insulating gas with good arc extinguishing characteristics.
Diversity of casing: In addition to standard ceramic casing, a variety of solutions can be provided, including rubber insulators on epoxy equipment casing.
Visible open/closed status: It is easy to see the color-coded main contact position indicator (green open; red closed) while standing on the ground. The indicator is directly connected with the main contact drive shaft assembly to ensure accurate display of the contact status.
Quick operation: The operating mechanism with spring energy storage ensures quick closing and opening operations (less than 100 milliseconds).
It can realize remote control: equipped with an electronic controller, which can be operated on site, or can be operated by the FTU interface to realize the main console operation.
Rugged and durable switch: The sf6 isolation switch is made of proven sturdy, corrosion-resistant materials (special 304L stainless steel plate for warships) to ensure a long service life (20 years), and can implement a series of operations. It has a column The ideal characteristics of the upper device.
