1.1
Generation and Supply
How electricity is generated and distributed to buildings
1.2
Circuit Protection and Consumer Units
MCBs, RCDs, and how consumer units protect circuits
📖 Further reading
Circuits and Cables →
1.3
Earthing
Earth bonding, protective conductors, and safety
📖 Further reading
Earthing and Bonding →
2.1
Electrical Units and Calculations
Volts, amps, watts, ohms, and Ohm's Law
📖 Further reading
Ohm's Law and Power Law →
2.2
Simple Circuits and Switches
Series and parallel circuits, switching arrangements
📖 Further reading
Circuits and Cables →
3.1
High Powered Appliances
Immersion heaters, showers, and dedicated circuits
📖 Further reading
Ohm's Law and Power Law →
3.2
Testing and Faults
Using test instruments to identify electrical faults
📖 Further reading
Safe Isolation Procedure →
3.3
Outcome of Faults
Consequences of electrical faults and how to prevent them
📖 Further reading
Safe Isolation Procedure →