Unit Ex004 - Maintain equipment in explosive atmospheres (under development)

Scope

This Unit of Competency covers the explosion-protection aspects for maintaining explosion protected and associated equipment and wiring systems including plant maintenance schemes. It requires the ability to develop and manage maintenance programs incorporating strategies for inspections, repair/overhaul/replacement of components and recording of maintenance outcomes. This includes the ability to follow a maintenance program, work safely, carry out maintenance to Standards and manufacturer’s instructions and complete the
necessary maintenance documentation. This unit of competency is based on IEC 60079-17 and any other relevant standards that apply to this Unit of Competency.

Scope limitation(s)

Competency shall be demonstrated in relation to any classified hazardous area and explosion-protection technique. Any scope limitations shall be included in the application according to OD 502.

Prerequisites

The applicant shall have the level of technical education (or equivalent) attained, relevant to the application, through documents such as College Certificates and Trade Credentials etc. A minimum 3 years experience in industrial maintenance practice is required.

NOTE 1 - This experience can include time spent under general supervision.

Competence in this unit shall be assessed either concurrently with or after Unit Ex 001 – Apply basic principles of protection in explosive atmospheres and competencies in maintenance of general plant and equipment, have been achieved (see Annex A). In addition, if the scope limitation requires, the achievement of competencies in developing and managing general electrical/instrumentation maintenance programs will satisfy the prerequisite.

NOTE 2 - For work on wiring and equipment operating above 1000 V a.c. or 1500 V d.c. competency in high
voltage switching and safe isolation should be held.