I. Overview
The GCK-type low-voltage drawout switchgear is suitable for three-phase AC 50–60Hz power systems, including three-phase four-wire and three-phase five-wire systems, with a rated operating voltage of 380V and a rated current of 4000A or below. It is widely used in power plants, substations, industrial and mining enterprises, high-rise hotels, airports, docks, and communication centers such as radio and television stations. It serves as the Power Center (PC) and Motor Control Center (MCC) in power distribution systems for power transmission and distribution, electrical energy conversion, and power consumption of electrical equipment.
II. Operating Environmental Conditions
1.Ambient air temperature: Maximum temperature +40℃, minimum temperature -5℃; the average temperature within 24 hours shall not exceed +35℃;
2.When the ambient air temperature is +40℃, the relative humidity shall not exceed 50%. Higher relative humidity is allowed at lower temperatures (e.g., 90% humidity is permitted at +20℃), but account shall be taken of possible condensation caused by temperature changes;
3.The altitude of the indoor installation location shall not exceed 2000 meters;
4.The switchgear shall be installed in a location free from severe vibration, impact, and conditions that could cause corrosion to electrical components.