Paper 2 - Electrical Uses PAPER 2 Electrical Uses UNIT 7 Fault Finding & Testing in Electrical Systems Fault Finding & Testing in Electrical Systems Principle/Working MechanismFault detection identifies abnormalities in electrical systems by measuring:Resistance (Insulation/continuity)Current Leakage (Earth faults)Circuit Integrity (Short circuits)Key Concepts:Ohm’s Law (V=IR) for fault analysisKirchhoff’s Laws for current/voltage distributionSafety Standards (IEC 60364, NEC) Types/Classifications By Test TypeTestPurposeInstrumentSymbolInsulationChecks wire...