Elements and Performance Criteria
- Prepare to inspect and test an electrical installation.
- OHS measures for the site are identified, obtained and understood.
- Established OHS risk control measures and procedures in preparation for the work are followed.
- Safety hazards, which have not previously been identified, are noted and established risk control measures are implemented.
- Documentation or deemed to comply standard on which installation is based is reviewed and understood.
- Appropriate personnel are consulted to ensure the work is coordinated effectively with others involved on the work site.
- Tools, equipment and testing devices needed to verify compliance are obtained in accordance with established procedures and checked for correct operation and safety.
- Preparatory work is checked to ensure no damage has occurred and complies with requirements.
- Visually inspect and conduct safety testing on the installation.
- OHS risk control measures and procedures for carrying out the work are followed.
- The need to test or measure live is determined in strict accordance with OHS requirements and when necessary conducted within established safety procedures.
- Circuits/machines/plant are checked as being isolated where necessary in strict accordance OHS requirements and procedures.
- Wiring is checked for suitability for the environments in which they are installed and suitably protected from damage or overheating.
- Cable conductor sizes are confirmed as meeting current-carrying capacity requirements and voltage-drop and fault-loop impedance limitations.
- Protection methods and devices are validated as meeting co-ordination requirements for overload and short-circuit protection.
- Switchgear and control gear is validated as being appropriately rated and meeting functional requirements.
- Evidence that electrical equipment complies with safety requirements is cited.
- Earthing system components are checked that they are correctly located and conductors correctly sized.
- Marking on switchboards are checked for accuracy and clarity and comply with requirements.
- Mandatory tests are conducted to verify that: earthing conductor resistance is sufficiently low; insulation resistance is sufficiently high; all polarities are correct; and circuit connections are correct.
- Testing is conducted to verify that: fault-loop impedance is sufficiently low and residual current devices operates as intended.
- Report inspection and test findings.
- OHS risk control work completion measures and procedures are followed.
- Work site is cleaned and made safe in accordance with established procedures.
- Non-compliance defects are identified and reported in accordance with established procedures.
- Recommendations for rectifying defects are made in accordance with established procedures.
- Mandatory documentation is completed in accordance with established procedures.