This unit describes the skills required to conduct explosive demolitions in an underwater environment. The unit also covers the conduct of maintenance on the established demolition circuits and includes the requirement to disarm and disassemble the demolition. The individual is also required to handle, transport and protect explosives in an underwater environment.

This unit applies to those required to assemble and disassemble firing circuits, and to fix detonators, primers, firing devices and explosive charges in accordance with the demolition supervising officer’s plan in an underwater environment.

The skills and knowledge described in this unit must be applied within the legislative, regulatory and policy environment in which they are carried out. Organisational policies and procedures must be consulted and adhered to.

Those undertaking this unit would work individually and as part of a team, under indirect supervision. They would use discretion and judgement and take responsibility for the quality of their outputs, conducting routine tasks in a range of complex contexts that could be unpredictable.

No licensing, legislative or certification requirements apply to unit at the time of publication.

ELEMENTS

PERFORMANCE CRITERIA

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare for underwater demolitions

1.1

Analyse work task and worksite data to determine the specific requirements for the explosive demolition

1.2

Develop a work plan consistent with the dive plan

1.3

Select, inspect and prepare explosives, associated equipment and protective equipment

1.4

Secure explosives and associated equipment to/from the dive site

1.5

Assess access obstructions and other hazards and take action to remove/reduce the risk

2

Conduct underwater demolition

2.1

Secure explosives and associated equipment on self

2.2

Establish work-safe area at the demolition site and confirm location of divers prior to commencing demolition task/s

2.3

Identify and manage hazards relevant to the application of explosives and associated equipment

2.4

Fix and place demolition charges, lay line, set timing devices, establish firing point and connect and test circuit

2.5

Confirm location and safety of personnel prior to firing the demolition charge

2.6

Fire demolition charge

3

Conduct post-demolition procedures

3.1

Minimise environmental impact from use of explosives and recover waste products

3.2

Disassemble demolition circuit

3.3

Recover, de-service and store for re-use explosives and associated equipment, or dispose

3.4

Record usage of explosives and associated equipment

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements and performance criteria on at least one occasion and includes:

conducting demolition operations

diving using self-contained underwater breathing apparatus in open water to 30 metres

handling explosives

implementing diving safety awareness strategies

operating specialist equipment

setting up explosive circuits

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 includes:

basic knowledge of:

oceanography

operational knowledge of:

dive equipment

dive physics

environmental effects on explosives

explosive charge design

explosive initiation techniques

general occupational/diving safety awareness

land-based explosive demolitions

Assessors must hold credentials specified within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must satisfy the Principles of Assessment and Rules of Evidence and all regulatory requirements included within the Standards for Registered Training Organisations current at the time of assessment.

Assessment must occur in workplace operational situations. Where this is not appropriate, assessment must occur in simulated workplace operational situations that reflect workplace conditions.

Assessment processes and techniques must be appropriate to the language, literacy and numeracy requirements of the work being performed and the needs of the candidate.

Resources for assessment must include access to:

a range of relevant exercises, case studies and/or simulations

acceptable means of simulation assessment

applicable documentation, including workplace procedures, regulations, codes of practice and operation manuals

relevant materials, tools, equipment and PPE currently used in industry.

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

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.

Not applicable.

Explosive Ordnance