An Overview. Initial Verification. Testing Continuity of Protective Conductors (Low-Resistance Ohmmeter). Testing Continuity of Ring Final Circuit Conductors (Low-Resistance Ohmmeter). Testing Insulation Resistance (Insulation Resistance Tester). Special Tests. Testing Polarity (Low-Resistance Ohmmeter). Testing Earth Electrode Resistance (Earth Electrode Resistance Tester or Loop Impedance Testers). Testing Earth Fault Loop Impedance (Earth Fault Loop Impedance Tester). Additional Protection (RCD Tester). Prospective Fault Current (PFC/PSCC Tester). Check of Phase Sequence (Phase Sequence Indicator). Functional Testing. Voltage Drop (Approved Voltmeter). Periodic Inspection. Certification. Sample MCQ Paper and Answers.