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Elements and Performance Criteria

1. Prepare to use EPTs underwater
   • Identify and analyse work task and worksite data to determine EPT specific requirements
   • Develop work plan consistent with dive plan
   • Select, inspect and prepare EPTs, explosive charges and protective equipment in accordance with work plan
   • Secure EPTs and explosive charges safely to/from dive site
   • Identify obstructions and other hazards, to determine risks and to manage appropriate risk control measures
2. Operate EPTs underwater
   • Secure EPTs and explosive charges on self in accordance with operational and safety procedures
   • Ensure material or base set out intended for explosive fasteners complies with detailed drawings and work plan specifications
   • Install EPT attachments and chamber EPT charges in accordance with manufacturer specifications
   • Determine safe work area, and confirm location of other divers prior to commencing work task/s in accordance with work plan
   • Operate EPTs under water safely and manage identified risks
   • Clear and render safe EPTs in accordance with manufacturer specifications
   • Check fastener penetration for angle, depth and integrity of base in accordance with work plan
3. Complete underwater EPT operations
   • Minimise environmental impact arising from use of EPTs and recover waste products
   • De-service EPT and protective equipment in accordance with work plan
   • Record explosive charge usage in accordance with organisational procedures

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment. Non-essential conditions may be found in the Companion Volume Implementation Guide.

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Performance Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria where the diver fires at least two charges into concrete, masonry or steel over a minimum of two underwater work tasks and include: applying relevant legislation, standards, and organisational policies and procedures applying underwater risk control measures and work plan requirements developing underwater explosive power tools work plan, including managing identified risks handling explosive charges and protective equipment safely using explosive power tools safely underwater in accordance with work plan.

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Knowledge Evidence

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria and include knowledge of: dive equipment dive physics dive physiology and medicine including: heat and cold illnesses compression illnesses decompression illnesses diving descent and ascent techniques general diving safety awareness including: diving in harbours diving in tidal waters, currents and tides diving on and/or near a ship’s bottom lost/separated entrapment/foul lines marine animal threats pollution/weeds working in confined spaces oceanography principles of underwater explosive power tool (EPT) operation relevant explosive hazards and control measures relevant EPT safety distances relevant legislation, standards, and organisational policies and procedures relevant underwater workplace hazards and control measures.

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