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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. |
Confined spaces may include | Any compartment or area with limited opening for access and no escape route, and with limited natural ventilation or an atmosphere containing more than 23.5% or less than 19.5% oxygen, and the capability of accumulating a toxic, flammable or explosive atmosphere, or of being flooded Examples of confined spaces may include: fuel tanks (diesoline, gasoline, kerosene, AVCAT) or any other liquid or gaseous fuel water tanks (feed, fresh, ballast), void spaces, cofferdams, double bottoms/wing compartments, sewage treatment tanks (CHT system) oil tanks (sludge oil, lubricating, hydraulic), cable lockers (anchor cable stowage) open-topped spaces such as pits or degreasers, pipes, sewers, shafts, ducts and similar structures boiler drums, steam turbine casing, main condensers, gas turbine rotor casing, piston engine enclosed crankcase, main circulating water inlet and discharge pipes, pressure vessels |
Duration of and limitations on tasks may include | Climbing equipment or ladders Lifelines Limitations associated with either the task or the environment that require limited time to reduce the exposure risk, or are imposed because of equipment limitations (e.g. breathing apparatus limitations) obstructions that limit access to or from areas within the confined space Requirements for special breathing apparatus Restrictions on activities that may be undertaken without specific action such as exhausting volatile gases before welding Working at heights Slippery surfaces Special clothing Time limit on exposure necessitating rotation of personnel through confined space in order to complete the task that initiated the entry requirement |
Tasks may include | Any activity that is to be performed inside the confined space |
Organisational policy and procedures may include | Any established contingency plan or any plan formed specifically to counter ill effects of any likely occurrence Australian or international standards Confined space entry permit/permits to work Equipment manufacturers' specifications Exposure standards Job Safety Analysis (JSA) Legislation, including state/territory/commonwealth OH&S acts, regulations, codes of practice and guidance material relating to hazards present in the workplace and industry, and associated with entry to confined space including legislation specific to confined space work Lockout and isolation procedures Material Safety Data Sheets (MSDS) Organisational policies and procedures Risk assessments Standing Operating Procedures (SOPs) Task analysis |
Equipment and resources may include | Detection/monitoring equipment such as used to detect gases, radiation Equipment which is intrinsically safe Personal protective equipment (PPE) such as safety helmets, eye protection, hearing protection, skin protection, belts, special boots Ropes, lifelines, ladders, karabiners Safety equipment such as breathing apparatus |
Preparation of equipment and resources may include | Confined space work permit completed and issued Forced ventilation set-up Recharging air bottles |
Occupational health and safety requirements pertain to all relevant OH&S legislation and include | General duty of care under OH&S legislation and common law Provisions relating to health and safety representatives and/or OH&S committees Provisions relating to OH&S issue resolution State/territory/commonwealth OH&S Acts, regulations, codes of practice and guidance material relating to hazards present in the workplace and the industry |
Preparing a confined space for entry may include | Cooling Emptying Heating Installing appropriate signage and protective barriers Isolation Lockout Ventilating |
Pre-entry tests or checks may include | Testing confined space atmosphere Testing equipment for safe operation (confidence testing) prescribed by manufacturer Testing equipment for serviceability |
Monitoring environmental conditions may include | Maintaining testing regime while in confined space, be it continuous or periodic, in accordance with entry plan and work permit Monitoring in response to risk assessment Monitoring in response to work being undertaken in the space |
Maintaining communications may include | Continuous or periodic verbal and/or visual and/or electronic communication in accordance with work permit/entry plan Emergency response procedures |
Cleaning and refurbishing equipment may include | Decontamination procedures Disposal of PPE Drying harnesses, ropes and safety lines Inspecting, servicing and cleaning equipment ready for re-use or storage Recharging of batteries, air bottles, gas bottles |
Documentation and reports may include | Equipment usage reports/logs Reports to OH&S officer Reports to tasking officer Work permit completion after exit Written reports required by organisation |
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