Quality Standards
This product complies with standards such as GB/T 11022, GB 3906, and GB 3804.
Normal Service Conditions
· Altitude: ≤ 1000m for standard type; ≤ 4000m for high-altitude type;
· Ambient Temperature: Upper limit +40℃, lower limit -35℃, daily average not exceeding +35℃;
· Relative Humidity: Daily average relative humidity ≤ 95%, monthly average relative humidity ≤ 90%;
· Seismic Intensity: Not exceeding Grade 8;
· Ambient air shall be free from obvious pollution by corrosive gases, flammable gases, water vapor, etc.
|
Item
|
Unit
|
Parameters
|
|
Rated Voltage
|
KV
|
24
|
|
Rated Frequency
|
Hz
|
50
|
|
Rated Current
|
Main Busbar
|
A
|
630
|
|
Branch Busbar
|
A
|
630
|
|
1 min Rated Short-Time Power Frequency Withstand Voltage
|
Phase-to-phase、 Phase-to-Earth
|
KV
|
65
|
|
Fracture
|
KV
|
125
|
|
Rated Lightning Impulse Withstand Voltage (Peak Value)
|
Phase-to-phase、 Phase-to-Earth
|
KV
|
79
|
|
Fracture
|
KV
|
145
|
|
Rated Short-Time Withstand Current
|
Main Circuit
|
KA
|
20/3S
|
|
Grounding Switch
|
KA
|
20/3S
|
|
Rated Peak Withstand Current
|
Main Circuit
|
KA
|
50
|
|
Grounding Switch
|
KA
|
50
|
|
Rated Short-Circuit Making Current (Peak Value)
|
KA
|
50
|
|
Rated Active Load Breaking Current
|
A
|
630
|
|
Rated Loop Closing Breaking Current
|
A
|
630
|
|
Rated Transfer Current
|
A
|
1400
|
|
Rated Cable Charging Breaking Current
|
A
|
10
|
|
Mechanical Life
|
Load Switch
|
Times
|
5000
|
|
Grounding Switch
|
Times
|
3000
|
|
Degree of Protection Provided by Enclosure
|
|
IP3X
|
