Protection Relay Calibration
The law requires that these relays are tested and calibrated once in 2 years.
Protection Relay Calibration required once in 2 years, by law – All electrical panels and switchboards have protection relays called earth fault and over-current relays which must trip the power supply in the event a fault develops, to help save lives. The law requires that these relays are tested and calibrated once in 2 years. We have 2 teams of qualified Testing Engineers who can carry this out, at a reasonable cost.