UEEHA0022 Determine the explosion-protection requirements to meet a specified classified hazardous area

Release: 1

UEEHA0022 Determine the explosion-protection requirements to meet a specified classified hazardous area

Modification History

Release 1. This is the first release of this unit of competency in the UEE Electrotechnology Training Package. This unit replaces and is equivalent to UEEHA0003 Determine the explosion-protection requirements to meet a specified classified hazardous area. Prerequisite requirements have been amended.

Application

This unit involves the skills and knowledge required to determine the explosion-protection requirements to meet a specified classified hazardous area. It includes determining the type of explosion-protected equipment for a given explosive atmosphere. It also includes reading and interpreting the explosion-protection fundamentals in explosive atmosphere technical standards; understanding the information given in certification documents, verification dossiers and equipment marking; identifying the design features of each type of explosion-protected equipment; understanding actions and conditions that would void the explosion-protection afforded by each equipment type; and understanding where each equipment type may be used. This unit applies to design, installation, maintenance, inspection, auditing, and repair and overhaul functions. Site-specific work permits may be 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 (EWPs) 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. This unit of competency and associated assessment requirements is adopted from clause 2.4 of AS/NZS 4761.1:2018 Competencies for working with electrical equipment for hazardous areas (EEHA). There may be differences between the content of this unit and AS/NZS 4761.1:2018, so the Standard must be checked to ensure compliance with it. Clause 2.4 of AS/NZS 4761.1:2018 includes the following precondition for assessment: “A candidate seeking assessment in this unit shall have been deemed competent to install, maintain, inspect and/or engineer electrotechnology equipment and installations from AQF level 3 or NZQF level 4 or higher.”

Pre-requisite Unit

UEEHA0004 Enter a classified hazardous area to undertake work related to electrical equipment

Competency Field

Hazardous

Unit Sector

Electrotechnology

Elements and Performance Criteria

ELEMENTS	PERFORMANCE CRITERIA
Elements describe the essential outcomes.	Performance criteria describe the performance needed to demonstrate achievement of the element.
1	Prepare to review explosion-protection technical standards	1.1	Technical standards specifying the requirements to which each type of explosion-protected equipment is required to comply are identified
1.2	A verification dossier for a site that has gas hazards is reviewed and requirements for the explosive atmospheres are established
1.3	A verification dossier for a site that has dust hazards is reviewed and requirements for the explosive atmospheres are established
2	Ascertain the requirements for each explosion-protection type	2.1	Protective features of each equipment type are identified through application of knowledge of explosion-protection methods
2.2	Equipment standards are reviewed to establish the compliance requirements for each equipment type
2.3	Aspects that are vulnerable to voiding the protection due to defective installation or poor maintenance are determined from knowledge of equipment types and equipment standards
2.4	Items of explosion-protected equipment are examined to identify any condition that would void the protection
2.5	Where particular explosion-protected equipment types may be used, relevant technical standards, equipment certification and the verification dossier for a given site are established
3	Identify acceptable equipment certification	3.1	Knowledge of the equipment certification process and acceptable standards are applied
3.2	The required marking on certified equipment is obtained from relevant technical standards
3.3	The suitability of explosion-protection equipment items for a given application and location is ascertained from relevant technical standards, certification documents, equipment marking and the verification dossier for a given site

Foundation Skills

Foundation skills essential to performance are explicit in the performance criteria of this unit of competency.

Range of Conditions

Range is restricted to essential operating conditions and any other variables essential to the work environment. Non-essential conditions may be found in the UEE Electrotechnology Training Package Companion Volume Implementation Guide.
Determining the explosion-protection requirements to meet a specified classified hazardous area must include:	using standards, equipment certification and installation design documentation and site-specific verification dossiers for any application in which explosion-protected equipment is used

Unit Mapping Information

This unit replaces and is equivalent to UEEHA0003 Determine the explosion-protection requirements to meet a specified classified hazardous area.

Links

Companion Volume Implementation Guides are found in VETNet - https://vetnet.gov.au/Pages/TrainingDocs.aspx?q=b8a8f136-5421-4ce1-92e0-2b50341431b6