This unit involves the skills and knowledge required to maintain high current direct current (d.c.) equipment and switchgear in the electricity supply industry (ESI).

It includes maintaining d.c. switchgear and other equipment, such as rectifier transformers, rectifiers, invertors, isolators and links, harmonic filters, negative reactors and energy dissipation resistors (EDR)s. It also includes diagnosing of faults and replacement and repair in accordance to workplace procedures and industry standards, isolating systems and/or circuits for safe work in accordance with work plans, visual inspections and necessary checks to ensure safe energisation, and updating of maintenance data and relevant quality assurance documentation.

The application of the skills and knowledge described in this unit may require a licence/registration to practice in the workplace.

Other conditions may apply under state and territory legislative and regulatory licensing requirements which must be confirmed prior to commencing this unit.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Plan to maintain high current d.c. switchgear and equipment

1.1

Work schedules, construction plans, drawings, workplace procedures and material lists are obtained and analysed

1.2

Job requirements and workplace procedures are identified and communicated with relevant personnel

1.3

Hazards are identified, work health and safety (WHS)/occupational health and safety (OHS)risks assessed and control measures prioritised, implemented and monitored, including emergency exits kept clear, to ensure safe systems of work are followed and in accordance with workplace procedures

1.4

Work is prioritised and sequenced for the most efficient and effective outcome following consultation with others and for completion within acceptable timeframes, to agreed quality standards and in accordance with workplace procedures

1.5

Risk control measures are identified, prioritised, implemented and evaluated against the work schedule

1.6

Equipment, tools and personal protective equipment (PPE) required for work are identified, obtained and confirmed in working order

1.7

Liaison and communication issues with authorised personnel, authorities, clients and land owners are resolved to facilitate work, as required

1.8

Personnel participating in work are fully briefed and responsibilities confirmed in accordance with workplace procedures

1.9

Worksite is prepared to minimise risk, damage to property, commerce and individuals in accordance with workplace procedures

2

Carry out the maintenance of high current d.c. switchgear and equipment

2.1

WHS/OHS, sustainable energy and environmental principles and practices are monitored and actioned to reduce incidents of accidents in accordance with workplace procedures

2.2

Cardiopulmonary resuscitation (CPR), rescue from live electrical apparatus and other related safety procedures are in place in accordance with job requirements and/or workplace procedures

2.3

Safe working documentation is acquired and requirements completed in accordance with workplace procedures

2.4

Requirements for lifting, climbing, working at heights, confined spaces and use of power tools/equipment are followed in accordance with workplace procedures

2.5

Hazard warnings and safety signs are recognised and hazards and assessed WHS/OHS risks are reported to the immediate authorised persons for directions in accordance with workplace procedures

2.6

Maintenance and repair of high current d.c. switchgear and equipment are maintained and repaired in accordance with works schedules, job requirements and workplace procedures

2.7

High current d.c. switchgear and equipment are safely maintained to ensure completion in agreed timeframes, to quality standards and minimum waste in accordance with workplace procedures

2.8

Unplanned events or conditions are responded to in accordance with workplace procedures

3

Complete the maintenance of high current d.c. switchgear and equipment

3.1

Completed work is checked against work schedule, construction plans and drawings for compliance and anomalies are reported in accordance with workplace procedures

3.2

Safe working documentation is surrendered and equipment made ready for service

3.3

Worksite is cleaned and confirmed safe in accordance with workplace procedures

3.4

Tools, equipment, surplus resources and materials are, where appropriate, cleaned, checked and returned to storage in accordance with workplace procedures

3.5

Work records, reports and/or documentation are completed in accordance with workplace procedures and relevant personnel notified

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Non-essential conditions may be found in the Companion Volume Implementation Guide.

Not applicable.

Substation