Overview
The GGD-type low-voltage AC distribution switchgear is a new-generation low-voltage distribution switchgear assembly developed in accordance with the requirements of power users and electrical design organizations, with a focus on safety, economy, practicality, and reliability. The product features high short-circuit breaking capacity, excellent dynamic and thermal stability, flexible circuit configurations, convenient assembly, a comprehensive product range, a novel structure, and a high degree of protection. It serves as an upgraded product for low-voltage switchgear and controlgear assemblies. The GGD-type low-voltage AC distribution switchgear is designed and manufactured in accordance with IEC 61439 and the applicable requirements of the GB/T 7251 series.
Service Conditions
- Ambient air temperature: −5 °C to +40 °C; the 24-hour average temperature shall not exceed +35 °C.
- Altitude: The installation site shall not exceed 2,000 m above sea level. The equipment is intended for indoor installation and operation.
- Relative humidity: The relative humidity shall not exceed 50% at a maximum ambient temperature of +40 °C. Higher relative humidity is permitted at lower temperatures, for example, up to 90% at +20 °C, taking into account the possibility of occasional condensation caused by temperature variations.
- Installation inclination: The equipment shall be installed with an inclination of no more than 5° from the vertical plane.
- Installation site: The equipment shall be installed in a location free from severe vibration, shock, and corrosive gases or vapors that may adversely affect electrical components.
- Any special requirements shall be agreed upon with the manufacturer.
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