types and applications of switchgear and control gear operating principles of switchgear and control gear interlocking systems, including: external interlocking systems such as Castell key systems internal interlocking systems for either safety or that operate in conjunction with Castell key systems control and protection of switchgear and control gear installation requirements, including: operating specifications for equipment areas requiring repairs and maintenance determining if repairs/maintenance are to be carried in situ or in workshop environment relevant legislation and standards applicable to the installation WHS/OHS issues with regard to removing/re-installing heavy equipment electrical safety issues with regard to removing/re-installing equipment understanding of CFC units electrical switchgear and control gear protection methods, including: the operation of switchgear when it opens under load the settings and operation required for both magnetic short circuit and thermal overload with equipment determining the earth fault-loop impedance requirements required to keep touch voltage values within requirements thermal imaging techniques time/current curves from manufacturer specifications equipment to safely test switchgear after repairs or maintenance effectiveness of arc suppression installed within the equipment modern types of switchgear that are computer controlled and programmed modern types of switchgear that are interconnected to other protective devices certification process for any repair or maintenance work performed phase-failure systems verifying the correct fault-level for the installation is consistent with the kiloamp (kA) rating of the equipment x-ray and ultrasonic detection systems with regard to metallurgy different types of lubricants required for different locations, temperatures and humidity electrical safe working practices of working safely on or around electrical equipment, including: determining safe working standards and codes of practice for equipment and installations over 20 kA WHS/OHS requirements for equipment and installations over 20 kA working knowledge of operating within the vicinity of live conductors, such as barriers procedures for working on switchgear over 20 kA risks and control measures associated with harmful dusts and airborne contaminants, including thermal insulation, fibrous cement materials and asbestos, and other fibre-reinforced switchboard materials checks and storage methods for maintaining the safety of testing devices. |