Unit Ex007 - Perform visual & close inspection of electrical installations in or associated with explosive atmospheres (under development)

Scope

This Unit of Competency covers evaluating the completeness of a hazardous area verification dossier and compliance of the explosion-protected aspects of the electrical installations within the constraints of a visual inspection. It requires the ability to work safely in a hazardous area, evaluate a verification dossier, identify explosion-protected equipment with their certification and specified location, visually inspect an installation for compliance and report and act on inspection results. This unit of competency is based on IEC 60079-14 & IEC 60079-17 and any other relevant standards that may apply.

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 electrical installation practice. Competence in this unit shall be assessed either concurrently with or after units Unit Ex 003 – Install explosion-protected equipment and wiring systems or Unit Ex 004 – Maintain
equipment in explosive atmospheres have been achieved. Alternatively, competencies in general electrical inspection will satisfy the prerequisite.

NOTE 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