Elements and Performance Criteria
- Plant and prepare for switching operations
- Safety issues are identified to comply with enterprise/site and legislative requirements
- Work requirements are identified from relevant personnel and documentation
- Documentation to determine plant status is assessed and evaluated
- Localised plant/equipment inspections, pre- operational checks and field preparation for service are carried out in accordance with manufacturer's and enterprise/site procedures
- Switchboard/yard operational prerequisites are established in accordance with manufacturer's and enterprise/site procedures
- Sequence for recommissioning of plant is determined to suit existing circumstances in accordance with enterprise/site requirements
- Where appropriate, the teams and individuals roles and responsibilities within the team are identified and, where required, assist in the provision of the on-the-job training
- Conduct switching operations
- Switching operations are carried out in accordance with enterprise and manufacturer's operating procedures and programmes
- Synchronising requirements are assessed and met to ensure system stability
- Switchboard, switch yard and transformer loads are monitored to prevent overloading during switching operations
- Carry out local operation of switchgear
- Carry out circuit and feeder earthing
- Carry out switchboard and ring main earthing
- Isolation and earthing requirements are assessed in accordance with enterprise/site requirements
- Switchboard/ring main is de-energised, isolated and tested prior to earthing in accordance with enterprise/site procedures
- Earthing of switchboard/ring main is achieved using appropriate approved earthing devices in accordance with enterprise/site procedures
- Test switchgear operation
- Tests are performed in accordance with defined procedures applicable to the operational test
- Switchgear is observed for correct operational response
- Corrective action is taken when response is not in accordance with documentation, system integrity or personnel safety requirements
- Switchgear is returned to required operational status upon completion of test
- Analyse system and switchgear faults and operation
- Cause of abnormal system/switchgear operating conditions are identified by analysing the technical and operational information in a logical and sequential manner
- Operation of protection systems is identified and assessed to evaluate the nature and cause of fault conditions
- Corrective action taken is in accordance with enterprise/site procedures
- System/switchgear/plant integrity and personnel safety are maintained through consultation with appropriate personnel, and with reference to plant, technical and operational documentation
- Inspect and monitor system, switchboards, transformers and protection systems
- Complete documentation