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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: | barriers to heat transfereffects of air in a steam systemheat transferinterpretation of plans and specifications, and sizing and documenting layout of steam distribution systems for residential, commercial and industrial applications for either new projects or an existing structure being renovated, extended, restored or maintainedprinciples and properties of steam systems, including:characteristics of condensationmethods of condensate removalsteam applications, including commercial, manufacturing, institution and machinery and equipment operationworking with types of steam and steam quality, including:dry steamflash steamproperties of steam at varying pressuressuperheated steamwet steam. |
Design requirements include: | architectural specificationsbuilder specificationsowner requirementsspecialist water use 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 titlingAustralian and New Zealand standardsBuilding Code of Australia. |
Manufacturer requirements include: | material specificationssizing tablestechnical 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: | steam generation and consumption, and steam and pressure quality, established using Australian and New Zealand standards and manufacturers' information. |
Layout of pipework systems: | should not unduly affect building integrity and aesthetic appealhave principles of economy, serviceability, durability and fit for use applied. |
Fittings and valves include: | bendscouplingsisolating valvespressure relief valvessteam headerssteam trapsteesunions. |
Pipe size calculations include: | energypressuresizingstoragevolume. |
Steam appliances: | include:calorifiersindustrial applicationskitchen and laundry appliancessteriliserswater heatersdetails should include:componentsconstructionelectronic controlsmethods of temperature and pressure control. |
Boilers: | include:coalelectricfire tubegasoilpackagedsolid fuelwater tubefactors to be considered when selecting a boiler:advantages and disadvantages of boiler typescapacity and sizedesigns based on anticipated useenergy sourcesmethods of reducing heat lossespressure controls and componentsstorage requirement calculationssuitable time period between refillingvalves. |
Steam circuits include: | condensate returnfeed pumpsfeed tanksheaderssteam distributionwater treatment. |
Steam trap types and their operation: | types include:mechanicalthermodynamicthermostaticother applicable typesoperation includes:installationlocation. |
Steam injection includes: | noise controlopen ended pipeproprietarysparge pipe. |
Insulation: | includes:feltfibreglassrock woolinsulation protection, includes:plasticsheet metal. |
Pipe fixings include: | anchorsbracket spacingcorrosion protectionhanging bracketsmaterial requirementssaddleswall and ceiling brackets. |
Materials include: | coppersteelother approved materials. |
Jointing methods include: | brazingmechanical jointsthreading. |
Installation requirements include: | clippinginstallation detailsjointing requirementslevel of workmanship. |
Designed includes: | cost relating to performance, including:milestonesstandard proceduresstandards of workwork schedulesprescriptive designs, including detail relating to:materials and quality of worknominated subcontractorsprovision of on-site facilities and site accessquality assurance. |
Plans may include: | axonometricscross-sectionsdetailselevationsisometricsschematics, which may be produced using:computer generation.Indian inkpencilpigment linersections. |
Specification includes: | appliancesclippingdetails of specialised componentsjointingmanufacturer requirementsmaterialsvalvesworkmanship. |
Testing includes: | flow testinginspection checklistleak testingpressure testingquality assurance (QA) audit. |
Commissioning schedule includes: | checking for burrs and obstructionscommissioning appliancesconfirming fit for purposepurging systemremoving contaminants. |
Operation and maintenance manual includes: | check for blockagesleak detectionregular inspectionregular maintenance requirements. |