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Evidence Guide: DEFEO714C - Conduct underwater explosive demolitions

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

DEFEO714C - Conduct underwater explosive demolitions

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare for underwater demolitions

  1. Work task and worksite data are determined and analysed to determine the specific requirements for the explosive demolition
  2. Work plan is developed consistent with the dive plan
  3. Explosives, associated equipment and protective equipment are selected, inspected and prepared
  4. Explosives and associated equipmentare secured safely to/from the dive site
  5. Access obstructions and other hazards are assessed and action is taken to remove/reduce the risk
Work task and worksite data are determined and analysed to determine the specific requirements for the explosive demolition

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Work plan is developed consistent with the dive plan

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Explosives, associated equipment and protective equipment are selected, inspected and prepared

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Explosives and associated equipmentare secured safely to/from the dive site

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Access obstructions and other hazards are assessed and action is taken to remove/reduce the risk

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct underwater demolition

  1. Explosives and associated equipment are secured on self
  2. Work-safe area is established at the demolition site and the location of divers is confirmed prior to commencing demolition task/s
  3. Hazards relevant to the application of explosives and associated equipment are identified and managed
  4. Charges are fixed and placed, line is laid, timing devices are set, firing point is established and circuit is connected and tested
  5. Location and safety of personnel is confirmed prior to firing the demolition
  6. Demolition is fired
Explosives and associated equipment are secured on self

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Work-safe area is established at the demolition site and the location of divers is confirmed prior to commencing demolition task/s

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Hazards relevant to the application of explosives and associated equipment are identified and managed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Charges are fixed and placed, line is laid, timing devices are set, firing point is established and circuit is connected and tested

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Location and safety of personnel is confirmed prior to firing the demolition

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Demolition is fired

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Conduct post-demolition procedures

  1. Environmental impact arising from use of explosives is minimised and waste products are recovered
  2. Demolition circuit is disassembled
  3. Explosives and associated equipment are recovered, de-serviced and stored for re-use or disposed of
  4. Usage of explosives and associated equipment is recorded
Environmental impact arising from use of explosives is minimised and waste products are recovered

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Demolition circuit is disassembled

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Explosives and associated equipment are recovered, de-serviced and stored for re-use or disposed of

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Usage of explosives and associated equipment is recorded

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

The evidence guide provides advice on assessment and must be read in conjunction with the Performance Criteria, Required Skills and Knowledge, the Range Statement and the Assessment Guidelines for this Training Package.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessment must confirm the ability to:

fix and place appropriate charges

implement work health and safety policies and procedures

implement diving safety awareness strategies

Consistency in performance

Competency should be demonstrated during a demolition task over a time frame that allows for the safe demonstration of competency.

Context of and specific resources for assessment

Context of assessment

Competency should be assessed in the ocean for all practical assessments, supported by questioning on shore or aboard vessels.

When practicable, assessment should relate to the diver's vocational focus.

Specific resources for assessment

Access is required to:

complete range of diving, safety and accessory equipment

explosives

associated equipment

Method of assessment

This unit may be assessed with the following unit:

DEFEO101D Work safely with explosive ordnance.

In a public safety environment assessment is usually conducted via direct observation in a training environment or in the workplace via subject matter supervision and/or mentoring, which is typically recorded in a competency workbook.

Assessment is completed using appropriately qualified assessors who select the most appropriate method of assessment.

Assessment may occur in an operational environment or in an industry-approved simulated work environment. Forms of assessment that are typically used include:

direct observation

interviewing the candidate

journals and workplace documentation

third party reports from supervisors

written or oral questions

Required Skills and Knowledge

This describes the essential skills and knowledge and their level, required for this unit.

Required Skills

ability to dive

fire explosive ordnance

handle and care for explosives

set-up explosive circuits

Required Knowledge

dangers to explosives

dive equipment

dive physics

effect of water on explosives

explosive charges

general occupational/diving safety awareness

land based explosive demolitions

oceanography

relevant references and Australian Standards

work hazards

Range Statement

The Range Statement relates to the Unit of Competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording in the Performance Criteria is detailed below.

Worksite data may include:

Current

Depth

Gradient

Hazards

Obstacles

Explosives and associated equipment include:

Anfo

Bangalore torpedo

Beehive

Composition b

Detonation cord

Electrical detonators

Electrical cable

Fuse burning time

Gelignite

Hayrick

M60 ignitor

Non-electrical detonators

Plastic explosive 4

Primers

Sheet explosive

Shrike lightweight exploder

Tester OHMETER No.1 Mk.3

Protective equipment may include:

Boots

Ear protection

Eye protection

Gloves

Helmet

Vests

Selecting, inspecting and preparing may include:

In respect of explosives, associated equipment and protective equipment:

circuit tests

date checks

preparatory assembly

proofing

test firing

Action to remove/reduce the risk may include:

Erecting signage

Using patrol/sentry craft

Explosives and associated equipment are secured on the self for:

Accessibility

Lack of interference with diver mobility and dive equipment

Hazards may include:

Contribution of water to explosive effect

Lightning

Radiation (e.g. sonar/radio)

Sympathetic explosion

Charges may include:

Borehole charges

Breaching charges

Concrete stripping charges

Concussion charges

Cratering charges

Cutting charges

Rope hole charges

Shaped charges

Lines may include:

Line-main

Single ring-main

Dual ring-main

Firing includes:

Conducting misfire drills

Environmental impact may include:

Physical damage to reef and associated floor eco-systems (e.g. coral)

Contamination of surrounding water (e.g. leaking oil)

Visual pollution of waste material (e.g. concrete and metal parts)