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 must include: | calculation of rainfall intensities in given catchment areas, including:average rainfall intervalsmeteorological informationrainfall intensitiesstormwater collection area calculationstime and concentrationinterpretation of plans and specificationssizing and documenting layout of siphonic stormwater drainage systems for residential, commercial and industrial applications and for either new projects or an existing structure being renovated, extended, restored or maintained. |
Design requirements must include: | owner requirementsarchitectural plansbuilding specificationspipework identificationcatchment areaapproved point of dischargeacoustic performance. |
Siphonic system attributes must include: | availabilitycostinstallation requirementsriskssite conditions. |
Cost-benefit analysis: | compares range of suitable materials and system choices available to enable cost-effective choices to be made without compromising integrity of projectmust include:design stylesexpected design lifelabour costsmaterial costssafety factorsspeed of installation. |
Statutory and regulatory requirements and relevant Australian standards and codes may include: | AS/NZS3500 National plumbing and drainageAS2200 Design charts for water supply and seweragecommonwealth, state or territory requirements and local governments requirements National Construction Codeother relevant Australian standards and codes. |
Manufacturer requirements may include: | material specificationssizing tablestechnical and trade manualsspecial siphonic drainage collection inlets. |
Desktop study may include collection and interpretation of existing data for design purposes in: | architectural and building plansmanufacturer datadeveloper plansother documents, including:applicationsbrochuresformspoliciesother reports as available. |
Performance requirements may include: | pipe flow velocities, flow conditions and discharge requirements, established using relevant Australian standards, codes and local authorities’ requirements. |
Layout of pipework systems: | must include:acoustic performanceamenity of the buildingclipping and pipe supportfireproofingfunction of the buildingimpingement on floor heightslocation of pipework (fire rating of enclosure)materials to be usedsize of penetrationstype of building structureshould not unduly affect building integrity and aesthetic appealshould have principles of economy, serviceability, durability and fit for use applied. |
Fittings may include: | bendsjunctions. |
Pipe size and flow requirement calculations may include: | dischargeflowmanufacturers’ tablessizing, according to relevant Australian standards and codesvelocityvolumes. |
Pipe supports may include: | anchorsbracket spacingcorrosion protectioncoverhanging bracketsmaterial requirementssaddleswall and ceiling brackets. |
Materials and components may include: | appropriate materials specified, based on fit for purpose, durability, compatibility and cost-effectiveness, including:copper (Cu)polyethylene (PE)polypropylene (PP)stainless steelother approved materialcomponents, may include:clipsfastenersfittingspipeworksiphonic collection inlets. |
Jointing methods may include: | brazingelectrofusion weldingmechanical jointsrubber ringother approved jointing methods. |
Installation requirements must include: | pipe protection, which may include:corrosionimpactfire ratinglevel of workmanshipmanufacturer-recommended specific fixingspipe supportprovision for expansion serviceability and access. |
Computer software packages may include: | manufacturer softwareproprietary design software. |
Sustainability principles and concepts: | cover the current and future social, economic and environmental use of resourcesmay include:selecting appropriate material to ensure minimal environmental impactefficient use of materialefficient energy usage/capital outlay comparison effect on the environment due to overflow or leakageconsideration of the Green Building Council of Australia rating scheme. |
Plans: | may include:axonometrics elevationsdetailscross-sectionsisometricsschematics sectionsmay be produced using:computer generationdrawing equipment. |
Specification may include: | commissioningbeddingsupportjointingmanufacturer requirementsmaterialstesting workmanshipwork health and safety (WHS). |
Testing may include: | hydrostatic testinspectionperformancequality assurance (QA) audit. |
Commissioning schedule may include: | system certificationchecking for foreign materialchecking leakscleaning gratessystem defectssystem functions as per design. |
Operation and maintenance manual may include: | as installed drawingscertification documentationresults of commissioning testmaintenance schedulesmanufacturer brochures and technical informationcheck for blockagesleak detectionregular inspectionregular maintenance requirements. |