Unit of competency Outline

Date retreived
22/07/2026 5:00 PM AWST

Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.

Install explosion-protected equipment and associated apparatus and wiring systems

Install explosion-protected equipment and associated apparatus and wiring systems

Unit of competency
National Code
UEEHA0005
State Code
OBY38
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
05/10/2020
View on TGA
State Implementation and Classification
Approved Date
12/07/2021
Field of Education
031313 - Electrical Fitting, Electrical Mechanics
Original Release Date
12/07/2021
Nominal Hours
54
Description
This unit involves the skills and knowledge required to install explosion-protected equipment and associated apparatus and wiring systems for hazardous areas. It includes understanding and applying the explosion-protection aspects of installing electrical equipment and wiring systems for hazardous areas; matching items of explosion-protected equipment with that specified for a given location; and complying with installation standards and retaining/completing the required documentation. It is adopted from clause 2.5 of AS/NZS 4761.1:2018 Competencies for working with electrical equipment for hazardous areas (EEHA).This unit applies to hazardous area electrical installation functions.Site-specific work permits maybe required to work in the hazardous environment. In addition, other permits may be required, such as confined space and to operate specific pieces of equipment such as elevated work platforms in various jurisdictions.Additional and/or other conditions may apply in some jurisdictions subject to regulations related to electrical work. Practice in the workplace and during training is also subject to work health and safety (WHS)/occupational health and safety (OHS) regulations.
Notes
Elements and Performance Criteria
1 Prepare to install equipment and wiring
  • 1.1 WHS/OHS procedures and safe work methods are obtained and interpreted
  • 1.2 Knowledge of requirements for installing electrical equipment and wiring for a hazardous area is applied to work preparation
  • 1.3 Types of explosion-protected equipment and wiring systems to be installed are determined from the area classification and planning and/or design documentation
  • 1.4 Location in which specific items of equipment and circuits are to be installed is determined from the area classification and planning and/or design documentation
  • 1.5 Explosion-protected equipment markings are checked to ensure they conform to their certification document and planning and/or design specifications
  • 1.6 Certification document supplied with each item of equipment is collected for forwarding to the relevant person for filing in the verification dossier
  • 1.7 Cables and cable enclosures to be installed are checked to ensure they conform to planning and/or design documentation
  • 1.8 Cable glands, seals and conductor terminations are checked to ensure they are compatible with the cable types and equipment specified in the planning and/or design documentation
  • 1.9 Special tools, equipment and testing devices needed to carry out the installation work are checked to ensure they are safe and serviceable, and any defective items are either rectified or replaced
2 Install equipment and wiring systems
  • 2.1 Safe work methods statements (SWMS) relating to explosive atmospheres are obtained and applied
  • 2.2 Installation of equipment and wiring systems demonstrates application of knowledge of requirements for installing electrical equipment and wiring for hazardous areas
  • 2.3 Equipment enclosure covers and internal components are removed where needed to enable installation and covers, components and their fixing devices are stored to protect them against loss or damage
  • 2.4 Equipment is installed to conform with the planning and/or design documentation, installation standards and within the limits specified by the equipment certification and manufacturer’s instructions
  • 2.5 Equipment is installed in a manner that maintains the integrity of protection afforded by the equipment type
  • 2.6 Cables and conduits are installed to conform with installation standards, planning and/or design documentation
  • 2.7 Cables and conduits are terminated to conform with installation standards and equipment certification and manufacturer’s instructions
  • 2.8 Circuits are tested before connecting them to devices to ensure protective earth resistance is sufficiently low, insulation resistance is safe, polarity and connections are correct and each circuit complies with installation standards
  • 2.9 Conductors are terminated and connected complying with planning and/or design documentation, installation standards, equipment certification and manufacturer’s instructions
  • 2.10 Equipment covers and internal components are removed to enable installation and are replaced ensuring the integrity of the equipment type is not compromised
3 Confirm that installation is complete
  • 3.1 Appropriate person/s is notified that the installation has been completed and is ready for the initial inspection
  • 3.2 Action is taken to rectify non-conformance and general installation defects found during the initial inspection and to ensure the installation complies with requirements
  • 3.3 Documents used during the installation are forwarded to the person responsible for compiling the verification dossier
No information
No information
Replaced By
State Code National Code Title Type
OEF68 UEEHA0025 Install explosion-protected equipment and associated apparatus and wiring systems Unit of competency