Understand GIS function and define gas, voltage, fault, ways, switching, earthing, protection, cable, service, and evidence inputs.

Plan SF6-free GIS evaluation using insulation medium, voltage, fault duty, switching, monitoring, service, testing, and evidence inputs.

Define gas-insulated switchgear enclosure, switching, earthing, protection, measurement, gas evidence, service, and cable interfaces.

Understand air-insulated switchgear power paths, switching, protection, measurement, earthing, interlocks, and control boundaries.

Define air-insulated switchgear bus, switching, protection, measurement, earthing, terminations, control, and environment inputs.

Plan gas-insulated ring main unit selection from network duty, ways, protection, earthing, cables, automation, service, and evidence.

Understand medium-voltage switchgear functions and define voltage, current, fault, bus, feeder, earthing, protection, and environment inputs.

Compare low-voltage switchgear types using bus, feeders, fault duty, isolation, protection, metering, environment, and maintenance inputs.

Review medium-voltage switchgear diagrams for topology, feeders, transformer ways, protection, measurement, earthing, interlocks, and evidence.

Read and document low-voltage switchgear sources, buses, ties, feeders, protection, metering, control power, and earthing interfaces.