Describe how to achieve isolation and switching for mechanical maintenance and electrical isolation

Describe the interrelationship between cable sizes, current carrying capacities, fuses, circuit breakersand installation conditions

Detail the means of protecting against direct contact to include basic insulation, barriers/enclosures and extra low voltage

Detail the means of protecting against indirect contact to include double insulation, automatic disconnection by earthing, residual current device (RCD), equipotential bonding and isolating reduced low voltage transformers

Describe D.C. and A.C. single phase and three phase, their relative merits and applications

Describe the operation of three phase induction motors, their control protection, connection and testing

Interpret wiring, circuit and schematic diagrams

Predict voltages at given points in a circuit and then measure these using a multi-meter

Test a three phase induction motor

Construct control circuits using typical components to include functional control switches, emergency control switches, latched switches, unlatched switches, normally open switches, normally closed switches, auxiliary contacts, contactors and thermal overloads

Construct direct on line starter (DOL) and forward and reverse control circuits