GN22‑12kV Indoor Isolation Switch

The GN22-12 is an indoor isolating switch rated for 12 kV, designed for use in three-phase, 50 Hz power systems. It is primarily intended for indoor power distribution equipment and related facilities, serving distribution systems in industrial enterprises, mines, and commercial buildings.

The GN22-12 is a 12kV indoor isolation is used to isolate circuits during power system maintenance. Upon opening, the switch creates a visible break between contacts, allowing personnel to clearly verify the isolation status. It is designed for circuit isolation under no-load conditions. During operation, personnel must strictly adhere to electrical safety protocols, including de-energizing the circuit, verifying the absence of voltage, and implementing necessary grounding measures.

The GN22-12 is a 12kV indoor isolation switch's connection components must possess excellent electrical conductivity, insulation properties, and corrosion resistance to meet operational requirements. In humid or heavily polluted environments, users should select the appropriate equipment variant based on site conditions and ensure regular inspections are conducted to promptly identify potential issues with insulation and connection points.

The contacts are manufactured from silver alloy to ensure optimal electrical conductivity. Since contact conditions directly affect contact resistance and operational temperature rise, proper installation and routine maintenance are crucial. Metal structural components undergo hot-dip galvanizing to minimize corrosion during long-term service.

Featuring a compact design, the unit facilitates convenient installation and routine inspection. It can be equipped with manual operating mechanisms and mechanical interlocking devices, with specific configurations determined by the product model. Design and performance specifications comply with relevant IEC standards and product technical documentation.

The GN22-12 is suitable for indoor power distribution applications requiring circuit isolation. When selecting the equipment, users should carefully consider parameters such as rated voltage, rated current, short-time withstand current, installation environment, and operational requirements. Proper selection, standardized installation, and regular maintenance are essential for ensuring the equipment's reliable operation.