1. Altitude does not exceed 2500m
2. Ambient temperature within ± 40 ℃
3. Relative air humidity is not more than 85%
4. In an environment without explosive hazardous media, and not easily corrosive to metals and electrical insulation and conductive dust
5.Grid voltage 380 ± 10%
6. The sectional area of the secondary conductor of the welding transformer is not less than 1200mm, and the length of the conductor is not more than 1500mm.
7. Cooling water source: clean water quality, water pressure no lower than 0.2Mpa, water temperature no higher than 30 ℃
8. Reliable grounding: The grounding area is not less than 5m㎡