Paper 2 - Electrical Uses PAPER 2 Electrical Uses UNIT 15 Protective Devices in Industrial Installations Protective Devices in Industrial Installations o Earthing of Machines & Equipment o HRC Fuses, Circuit Breakers, Relays o Overload, No-Volt, & Over-Speed ProtectionProtective Devices in Industrial Installations Principle/Working MechanismIndustrial protective devices safeguard equipment and personnel by:Interrupting fault currents (HRC fuses,...

