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. |
Scope of work includes: | interpretation of plans and specificationsprinciples of operation of various types of LPG components and fault conditions in LPG componentssizing and documenting layout of gas bulk storage installations, including fire protection systems, such as:chemical injectionextinguishershose reelshydrantsmonitorsportable and fixed types of firefighting equipmentspray systems. |
Design requirements must include: | architectural specificationsbuilder specificationsowner requirementsspecialist gas use applications. |
Cost-benefit analysis: | compares the range of suitable materials and system choices available to enable cost-effective choices to be made without compromising integrity of project. |
Statutory and regulatory requirements and Australian and New Zealand standards must include: | Acts, regulations and local and state government policies, including group and strata titlingAS/NZS1596 The storage and handling of LP gasAS2430 Classification of hazardous areasAS5601 (AG601) Gas installationsNational Construction Code. |
Manufacturer requirements include: | pump tablessizing tablesspecificationstechnical and trade manuals. |
Desktop study includes collection and interpretation of existing data for design purposes in: | architectural and building planscouncil plansdeveloper plansother documents, including:applicationsformsother reports as available. |
Performance requirements must include: | operational and safety requirements, established using Australian and New Zealand standards, and local and state authority plans. |
Layout of pipework systems must: | not unduly affect building integrity and aesthetic appealhave principles of economy, serviceability, durability and fit for use applied. |
Control valves and fittings may include: | valves:applications of valves and code requirements for installationemergency shutdown valvesexcess flow valveshydrostatic relief valvesindividual valve typesfittings:bendsinspection openingsjunctionsmetersreflux valvesstaged regulatorstrapsvaporisers. |
Meters include: | mass flowpositive displacementturbine. |
System calculations must include: | determination of flow and appliance loadingsinterpretation of design charts and tablespipe sizing calculations. |
Pipe fixings include: | anchorsbeddingbracket spacingconcrete supportcorrosion protectioncoverhanging bracketsmaterial requirementssaddleswall and ceiling brackets. |
Materials include: | concretecopperfittings and valveshigh density polyethylene (HDPE)measures to prevent the spread of fire. |
Jointing methods include: | brazingmechanical jointssolvent cement weldingthreading. |
Installation requirements include: | beddingclippingconcrete supportinstallation detailsjointing requirementslevel of workmanship. |
Plans include: | axonometricscross-sectionsdetailselevationsisometricsschematics, which may be produced using:computer generationdrawing equipmentsections. |
Specification includes: | clippingdetails of specialised componentsjointingmanufacturer requirementsmaterialsvalvesworkmanship. |
Testing includes: | air pressure testgas leak testquality assurance (QA) audit. |
Commissioning schedule must include: | flow testingleak checkvaporisation rate check. |
Operation and maintenance manual may include: | leak detectionregular maintenance requirementssafety inspectionyearly inspection. |