Learning Outcomes
After successful completion of this course, trainees will be able to:
- Describe how to achieve isolation and switching for mechanical maintenance and electrical isolation
- Describe the interrelationship between cable sixes, current carrying capacities, fuses, circuit breakers and 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 too include double insulation, automatic disconnection by earthing, residual current device(RCD) 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 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 , normally open switches, normally closed switches, auxiliary contact, contactors and thermal overloads
- Construct a direct on line starter (DOL) and reverse control circuits.
Course Content
- Safety
- Lock Out Tag Out
- Electrical Charge
- OHMS Law
- Types of Circuit Supply
- Motors
- Insulation
- Cable Structure
- Types of Conductors
- Cable Specification
- Why use a transformer