GGD AC low-voltage switchgear: The switchgear has a reasonable mechanism, easy installation and maintenance, good protection performance advantages of high breaking capacity, high-capacity, high segmentation ability, strong dynamic stability, wide applicability of electrical solutions, etc., can be used as replacement product. 1. The ambient temperature is not higher than + 40 ℃, not lower than -5 ℃. 2. When the product installation, use the site altitude does not exceed 2000M. 3. The ambient air relative humidity less than 90% (+ 25 ℃). The equipment should be installed in the absence of severe vibration and shock place and inadequate electrical components are corrosion sites. 5. ambient air relative humidity at the highest temperature of 40 degrees, no more than 5%, at a lower temperature allows a greater relative humidity, should take into account the degree of change may occasionally produce condensation effects 6. equipment installed No severe vibration and shock, and the area is not sufficient to make the electrical components are corrosion sites