KYN28A-12(Ⅱ) high-voltage electrical cabinets (arcing cabinet)
1. The cabinet structure meets with the criteria of Standardized Design and Customization Scheme for 12kV Handcart-type Switchgear (2019) of State Grid
2. The protection grade of the cabinet case meets with IP4X standard, and the protection grade of the partition compartment meets with IP2X standard;
3. The temperature rise of the cabinet meets with DL/T 593 standard, when the rated current is＜3150A, it will be self-cooling and when the rated current is ≥3150A, it will be air cooling;
4. The IAC grade of the cabinet meets with A-FLR standard, the arcing duration is 1s, and the test current is selected in accordance with the rated switching current of the switchgear;