Elements and Performance Criteria
- Prepare to carry out maintenance.
- OHS policies and procedures for preparing to work in a hazardous area are followed.
- Area classification and details of explosion-protected equipment and wiring are ascertained from hazardous area layout drawings and equipment certification documents held in hazardous area verification dossier.
- Extent of maintenance to be conducted is established from the maintenance schedule and reports held in hazardous area verification dossier.
- Special tools, equipment and testing devices needed to carry out the maintenance work are obtained and checked for correct operation and safety.
- Carry out maintenance.
- OHS policies and procedures for working in a hazardous area are followed.
- Work is carried out to plan schedule to ensure all items are correctly maintained.
- Equipment is checked and tested in accordance with established procedures to determine whether it functions correctly, complies with approval documentation and is not subject to deterioration or damage.
- Equipment is adjusted or repaired within the limits permitted by the equipment certification and in accordance with manufacturer instructions.
- Certification documentation for replacement equipment is sighted to ensure that it is identical to the equipment it replaces and is in accordance with the explosion-protection system design.
- Circuits of equipment being withdrawn from service are terminated or isolated safely and in the manner approved for the classification of the area.
- Flexible cables and cords are examined and removed from service if they are not in immediate use or are found to be defective or damaged.
- Spare equipment, flexible cables and cords are maintained and suitably stored where they are not likely to suffer deterioration or damage.
- Complete maintenance work inspections and documentation.
- Detailed inspection of explosion-protected equipment and systems subject to the maintenance work is arranged in accordance with established procedures and requirements.
- Results of inspections and maintenance activities are recorded in accordance with established procedures and requirements.
- Appropriate personnel are notified of the completion of maintenance and details are documented in accordance with established procedures and requirements.