Inspection should be planned with the appropriate parties to determine access, conditions and work requirements. Systems may include process control systems, PLCs, hydraulic control systems, turbine supervisory systems, water ingress protection system, flame surveillance systems, compressor surge control systems and fire detection/suppression systems. Materials may include cables, solder/flux, lubricants, cleaning solvents, contact cleaners, connectors, adhesive and sealants. Components may include power supplies, relays, PLC input/output blocks, printed circuit boards, protection devices, switches, transformers, servo valves, positioners, converters, controllers, function cards and transmitters. Test and measurement instruments may include multimeter, decade box, DC I/V standard, potentiometer, hand-held communicator/programmer, frequency counter, function generator, CRO, LCR bridge, logic analyser and specialised test equipment. Fault finding and diagnostic techniques may include linear approach, half split rule, sensory detection, insulation/resistance and continuity tests. Fault indicators may include indication lamps, LED's, alarms and flag relays. Work may be performed with system on line Work completion details may include plant and maintenance records, job cards, check sheets and on device labelling updates. Work site environment may be affected by nearby plant or processes, e.g. heat, noise, dust, oil, water and chemical. Isolations can refer to electrical/mechanical or other associated processes. Generic terms are used throughout this Training Package for vocational standard shall be regarded as part of the Range Statement in which competency is demonstrated. The definition of these and other terms are given in Volume 2, Part 1. |