This unit includes the installation of wiring enclosures, cable support systems, cables, protection devices, switchgear, control gear, switchboards, and accessories designed to operate at voltages up to 1,000 volt (V) alternating current (a.c.) or 1,500 V direct current (d.c.).
It covers working safely and to installation standards, routing cables to specified locations, terminating cables and connecting wiring at accessories, matching appliances and accessories with that specified, making required circuit connections and completing the necessary installation documentation.
The skills and knowledge described in this unit require a licence or permit to practice in the workplace where work is carried out on electrical installations which are designed to operate at voltages greater than 50 V a.c. or 120 V d.c.
Assessment tasks will be designed to reinforce & extend knowledge and skill competence within set & controlled parameters in accordance with each unit’s learning outcomes & performance criteria requirements, incl the setting of work based practical application tasks designed to provide evidence of competence outcomes, within periodic and scheduled timelines.
Students will be expected to demonstrate the following required skills:
*reading and interpreting drawings and schedules related to cable layouts, apparatus locations and circuit connections
*planning cable routes and installation of appliances, switchgear and accessories and obtaining installation materials
*identifying underground services
*selecting underground consumers mains in accordance with AS/NZS 3000 and local supply authority requirements
*sequencing the installation effectively with other relevant people
*installing and terminating consumer mains for connection via overhead terminals and underground
*installing of conduit, cable ladder/tray
*installing wiring systems for low voltage (LV) circuits
*routing, placing and securing cables in accordance with industry standards
*installing LV electrical apparatus and associated equipment
*selecting equipment suitable for installation in given damp situations
*placing and securing appliances, switchgear and accessories accurately in their planned location
*terminating cables and conductors, including aerial types in accordance with industry standards
*terminating subcircuit cabling at switchboards and connecting components including:
*correct interconnection between switchgear, protection devices and links'
*use of adequately sized cables
*correct marking of equipment
*clear identification of circuit neutral conductors
*terminating and connecting appliances, switchgear and accessories in accordance with industry standards
*conducting safety inspection, testing and documentation of installed circuits, verification of earth continuity, insulation resistance, polarity, circuit connections and protection arrangements
*maintaining fire integrity.
The qualified trainer and assessor will advise students of class notes, reading materials produced by VU Polytechnic and further support via VU Polytechnic e-learning system and/or in person.
This unit is studied as part of the following course(s):