Overhaul and repair of explosion-protected equipment
Scope
This Unit of Competence covers the explosion-protection aspects of overhauling and repairing explosion-protected equipment both at a craftsperson (operative) level and as the responsible person for verifying compliance after such overhaul and/or repair. For the operative it requires the ability to identify and select authorized components, follow repair specifications to effect the overhaul/repair of equipment and complete repair documentation. For the Responsible Person it requires the ability to establish and document the level of work required, arranging for the overhaul/repair to be carried out, verify compliance of overhauled/repaired equipment and complete the necessary documentation.
This unit of competence is based on IEC 60079-19 and any other relevant standards that may apply
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. For an operative a minimum 3 years experience in the overhaul and repair of general electrical, electronic and/or mechanical equipment relevant to the scope of the unit of competence being applied for taking into account the scope limitations.
For a responsible person a minimum 3 years experience in the servicing of Ex electrical, electronic and/or mechanical equipment relevant to the scope of the unit of competence being applied for taking into account the scope limitations.
Assessment of training and competence:
Each applicant will be required to demonstrate their competence through theoretical tests relevant to the competence applied for:
A rigorous theoretical exam will take the form of both Selected Response and Constructed Response questions. The duration of a knowledge test shall be based on the following:
- Selected Response Questions – 2 minutes per answer
- Constructed Response Questions – 3 minutes per short answer, 5 minutes per extended answer and 3 minutes per calculation.
The following is an example of the number of questions and duration of assessment for Unit 005 where competencies in Flameproof Ex d, Increased Safety Ex e and Non Sparking Ex n have been requested. The assessment time is based on an average of 2 minutes for selected response questions and 4 minutes for constructed response question.
OD504
Clause | Selected
Response A
(100% correct) | Selected
Response B
(80% correct) | Constructed
Response C
(80% correct) | Total number
of items | Assessment
Time |
|---|
| 5.1 |
3 |
6 |
|
9 |
18 Mins |
| 5.3 |
3 |
6 |
|
9 |
18 Mins |
| 5.4 |
3 |
6 |
2 |
11 |
26 Mins |
| 5.5 |
4 |
8 |
2 |
14 |
32 Mins |
| 5.9 |
2 |
3 |
2 |
7 |
18 Mins |
| 5.10 |
2 |
2 |
2 |
6 |
16 Mins |
| 5.11 |
1 |
2 |
1 |
4 |
10 Mins |
| 5.21 |
1 |
1 |
1 |
3 |
8 Mins |
| 5.30 |
15 |
2 |
2 |
19 |
42 Mins |
| 5.31 |
3 |
1 |
1 |
5 |
12 Mins |
| 5.32 |
Practical Assessment |
4 Hrs |
| 5.33 |
| |
6 Hrs 20 Mins |
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OD503 Fig 1B - The Pathway to obtaining an IECEx CoPC for units Ex 001 – Ex 010