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, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. |
Relevant compliance documentation may include: | legislative, organisation and site requirements and proceduresmanufacturers' guidelines and specifications Australian standardscode of practiceEmployment and workplace relations legislationEqual Employment Opportunity and Disability Discrimination legislation |
Work instructions may come from: | briefings, handovers, plans and work orders and may be written or verbal, formal or informal and may include:nature and scope of tasks and achievement targetssite location and layoutout of bounds areasoperational conditionscoordination requirements or issueshazards and potential hazardswaste management requirementsenvironmental control requirements worksite inspection requirementsbarricade and signage requirementsobtaining of permits requiredtype and quantity of explosives and accessories equipment availability and/or requirementsplant or equipment defectstransport arrangements and/or requirementssafe storage requirementspublic relations requirements |
Hazards may include: | chemical energy, including:premature explosiondeterioration of explosivesstored energyworking environment, including:weather conditionsinsufficient illuminationmethanecoal dustNOX gases poor road or rail conditionsstrata conditionsfire/flames/ignition sourcesatmospheric contaminantsdust and fumesnoiseground conditions, including hot groundlack of ventilationextraneous electricity e.g. static electricity, lightningequipment and materials, including:faulty explosivesmisfiresfaulty vehicle faulty equipmentbroken detonation leadshigh voltage electricityradio frequencies and transmittershot exhaust systemhigh air and water pressureshydraulic oil pressurepeople, including those:speedingunauthorised personscommitting thefttrespassersprocesses and procedures, including:back injuriesdrilling in buttslost holes |
Equipment may include: | sirenradiossignsvehicles approved for carrying dangerous goods and explosivesexplosives mixerspumpsplugs (to seal finished holes prior to loading)measuring tapecutting implementsblast monitoring systemsvideo camera |
Support requirements may include | other equipment and their operatorsvehiclespublic and site notification |
Survey of blast area includes: | locate position, direction and incline of blast holessurvey reports |
Geological data may include: | rock typestructuresfaultsintrusionsweatheringwet and dry holeshot groundreactive groundhot and reactive ground |
Calculations may include: | depth of holestemperatureswater problemspattern designtypes of explosiveBCMexplosives quantitypowder factor |
Explosives may include: | high explosiveslow explosivesbulk and packaged explosivesdeflagrating explosivespermitted explosives wet or dryvariable density |
Accessories may include: | primersdelaysdown linestrunk lineslead-in linesdetonators and detonator assembliesdetonation mechanisms including:bell wire and firing linesdelay mechanismsblasting machines or mains firing equipmentexplosives testerbinding tape fuses and igniter cordsdetonators and detonating cordgas bagsdeckingstemminghole linerblast monitoring equipmentfiring cables/bell wireexploders and testerselectronic firing equipmentspecialist toolsinitiators |
Inventory control systems may include: | types and quantities of explosivesshelf life distribution records |
Dispose of explosives may include: | burning by the shotfirers on sitedetonation in a production drill holedetonation in a controlled mannerreturn to supplier or delivery or surrender to an explosives |
Secure shot area may include: | signagewindrowbund wallribbontapewitches hatsropesflags or pegssentriesgates |
Pre-blasting procedures may include: | warningssentriesarea clearance |
Initiating blast systems may include: | safety fusedetonating cordnon-electric detonatorelectric detonatorelectronic detonatorremote firing |
Misfires may be caused by: | faulty explosives or accessoriesdamaged or deteriorated explosives or accessoriesimproperly assembled explosives componentsinappropriate or incomplete combinations of componentsoperator error or inexperienceinattention to detail or ignoranceenvironmental influences, e.g. wet weather or poor visibility |
Post-blast coordination may include: | the return of unused explosivesthe return of other equipmentthe withdrawing sentriescollection of environmental monitoring equipmentrecording of environmental monitoring datamaintenance, which may include:testing of explodersservicing of mixing equipmentmaintenance of hand toolsoperational maintenance of bulk delivery equipment |