Which can be:
- Climate control
- Control of lighting
- Control of the impedance Zs of the loop "phase-protective conductor"
- Control cables 1000V insulation
- Control of circuit breaker
- Control of circuit breaker for zero sequence currents
- Control of resistance of lightning and grounding systems
- Control of resistance of protective grounding systems
- Control of the condition of lighting installations
- Control of prospective current and leakage current