To develop the essential, up-to-date knowledge and techniques needed to professionally design and install or inspect and test electrical systems. The ability to design is required before new installations are constructed and also when additions or alterations to existing installations are required. This may be ideal for qualified electricians wishing to expand or update their professional knowledge and skills and who are working with minimal or no supervision. It can be intended for personnel in electrical contracting companies who have responsibility for the quality of the design, specification, installation and testing process.