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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, 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:documenting layout of sound attenuated hydraulic services, including reduction of noise transfer for residential, commercial and industrial applicationsinterpreting plans and specificationsmay be for new projects or an existing structure being renovated, extended, restored or maintained. |
Design requirements include: | architectural specificationsbuilder specificationsowner requirementsspecialist applications. |
Cost-benefit analysis includes: | comparison of 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 include: | Acts, regulations and local and state government policies, including group and strata titlingAS/NZS3500 National plumbing and drainage set: Parts 2.1 and 2.2AS2200 Design charts for water supply and sewerage. |
Manufacturer requirements include: | analysis of sound transmission valuespump tablessizing tablesspecificationstechnical and trade manuals. |
Desktop study includes: | collection and interpretation of existing data for design purposes from:architectural and building planscouncil plansdeveloper plansother documents, including:applicationsformsother reports as available. |
Performance requirements include: | pipe grades, cover, flow conditions and discharge requirements, established using Australian and New Zealand standards and local authority plans. |
Noise generation includes: | high velocitylinking of building compartments by pipeworkloose pipeworknoisy fixtures and appliancespumped hydraulic systemsquick action valveswater hammer. |
Layout of pipework systems include: | proximity of residential compartmentssound transmission category of building compartments. |
System calculations include: | decibel calculationsnoise insulation characteristics of materialssound transmission values of plumbing pipework and building materials. |
Pumped hydraulic systems include: | circulating systemscompressed air systemspressurised water mainspump and pump installationpumproomsanitary rising mainssteam systems. |
Pipe fixings cover fixings that do not impinge on sound attenuation of the hydraulic service and include: | anchorsbracket spacingcorrosion protectionhanging bracketsmaterial requirementssaddleswall and ceiling brackets. |
Materials include: | cast ironcopperpolyethylenespecialist sound attenuation piping materials and sound attenuating insulation materials.unplasticised polyvinyl chloride (PVC-U). |
Installation requirements include: | clippinginstallation detailsjointing requirementslevel of workmanshipsupport. |
Material combinations include: | ductsfloor and ceiling systemsinsulationplasterboardseparation distanceswall. |
Plans may include: | axonometricscross-sectionsdetailselevationsisometricsschematics, which may be produced using:pencilIndian inkpigment linercomputer generationsections. |
Specification includes: | clippingdetails of specialised componentsmanufacturer requirementsmaterialsworkmanship. |
Testing includes: | compliance testingquality assurance (QA) auditsound measurement (dB). |
Commissioning schedule includes: | insulation gap filling. |
Operation and maintenance manual includes: | regular maintenance requirementsyearly inspection. |