1 Purpose

1.1 type GGD AC low voltage power distribution equipment for power plants, power stations, industrial enterprises and other power users of AC 50Hz, rated electric power distribution system lJ~380V rated current 3150A, as power, lighting and power distribution equipment power conversion, distribution and control purposes.

1.2 GGD AC low-voltage distribution cabinet according to the Ministry of energy Bu Bu, the majority of users and design requirements, in line with the safety, economic, reasonable and reliable principle of the design of a new low-voltage distribution cabinet. Products with high breaking capacity, thermal stability and electrical rape, flexible scheme and convenient combination, series resistance, strong practicability, novel structure, high level of protection can be used as replacement of low voltage switchgear products.

1.3 GGD AC low voltage distribution cabinet in line with IEC439 "low voltage switchgear and control equipment" Gb7251 "low voltage switchgear" and other standards.

2 use conditions

2.1 ambient air temperature shall not be higher than +40 DEG C, not less than 5C. The average temperature in 24h is not higher than +35.

2.2 indoor installation, use the site altitude not exceeding 2000M.

2.3 ambient air relative humidity at the highest temperature of +40 DEG C is not more than 50%, in the lower temperature allows a greater relative humidity. (90% degrees +20 for example) should be taken into account due to the effect of temperature changes may happen.

2.4 equipment installation and vertical surface tilt is not more than 5%.

2.5 equipment shall be installed in areas where there is no severe shock and shock, and a place where electrical components are not corroded.