This unit of competency supports development of skills and knowledge required for competent workplace performance in a consultancy or supervisory capacity in relation to plumbing services and construction hydraulics.

Nil

ELEMENT

PERFORMANCE CRITERIA

1. Evaluate design parameters.

1.1. Scope of work is established for sound attenuated hydraulic services for wide span and high-rise building projects.

1.2. Design requirements are determined from plans, specifications and client briefs.

1.3. Sound transmission categories and levels are identified from relevant Acts, codes and standards, and are evaluated for residential, commercial and industrial premises.

1.4. Sound transmission values of building and structural elements and materials are evaluated.

1.5. Cost-benefit analysis is conducted comparing a range of pipe materials and system designs.

1.6. Building Code of Australia, and statutory and regulatory requirements and Australian and New Zealand standards for the design of sound attenuated hydraulic services are analysed and applied.

1.7. Manufacturer requirements and trade and technical manuals are interpreted.

1.8. Additional research, including a desktop study, is conducted to outline design parameters.

1.9. Performance requirements are established.

2. Plan and detail system components.

2.1. Causes of noise generation in hydraulic services are identified and analysed.

2.2. Layout of sound attenuated pipework systems is planned.

2.3. System calculations are performed for a range of sound attenuated hydraulic services.

2.4. Pumped hydraulic systems are sound attenuated.

2.5. Pipe fixings are designed for a range of applications.

2.6. Approved materials and installation requirements for sound attenuated hydraulic services are specified.

3. Design and size systems.

3.1. Sound attenuated hydraulic services are designed and sized for a range of applications.

3.2. Material combinations are identified and documented to achieve sound attenuation requirements.

3.3. Pump installations are sound attenuated.

3.4. Sound attenuated hydraulic services are designed and evaluated using computer software packages.

4. Prepare documentation.

4.1. Plans are prepared for a range of sound attenuated hydraulic services.

4.2. Report on sound attenuated hydraulic services for a range of applications is prepared.

4.3. Specification for a sound attenuated hydraulic services plan is prepared.

4.4. Testing and commissioning schedule is prepared.

4.5. Operation and maintenance manual is produced.

Required skills

Required skills for this unit are:

communication skills to:

communicate with others to ensure safe and effective work practices

confirm job specifications and client requirements

enable clear and direct communication, using questioning to identify and confirm requirements, share information, listen and understand

read and interpret:

plans, specifications, drawings and design briefs

standards and manufacturer requirements and manuals

statutory and regulatory requirements

use language and concepts appropriate to cultural differences

use and interpret non-verbal communication, such as hand signals

written skills to prepare documentation, including:

operation and maintenance manual

plans, specifications and schedules

determining relevant installation details for sound attenuated hydraulic services

innovation skills to develop creative and responsive approaches

numeracy skills to apply measurements and calculations

planning and organisational skills to:

plan and set out work

research, collect, organise and understand information relating to the design of sound attenuated hydraulic services

take initiative and make decisions

preparing specifications for sound attenuated hydraulic services

problem solving skills to analyse requirements, consider options and design an appropriate system

teamwork skills to work with others to action tasks and relate to people from a range of cultural and ethnic backgrounds and with varying physical and mental abilities.

Required knowledge

Required knowledge for this unit is:

common terminology and definitions used in the design of sound attenuated hydraulic services for all classes of building

drafting principles

nature of materials used and effects of performance under various conditions

principles of technology in the design of sound attenuated hydraulic services

requirements of state regulatory authorities, Australian standards and manufacturer specifications, including hazards identified in relation to devices and systems used

workplace safety requirements, including relevant statutory regulations, codes and standards.

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

This unit of competency could be assessed in the workplace or a close simulation of the workplace environment providing that simulated or project-based assessment techniques fully replicate plumbing and services workplace conditions, materials, activities, responsibilities and procedures.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

A person who demonstrates competency in this unit must be able to provide evidence of:

evaluating and documenting design parameters, including client, regulatory, manufacturer and Australian and New Zealand standard requirements for a range of sound attenuated hydraulic services

planning and detailing system components, including:

clipping

ducts

insulation

sound attenuated pipework

designing and sizing a range of sound attenuated hydraulic services

preparing plans to industry standards for a range of sound attenuated hydraulic services

preparing reports on sound attenuated hydraulic services for a range of applications

preparing specifications for a range of sound attenuated hydraulic services

preparing testing and commissioning schedules

preparing operation and maintenance manuals.

Context of and specific resources for assessment

This competency is to be assessed using standard and authorised work practices, safety requirements and environmental constraints.

Assessment of essential underpinning knowledge will usually be conducted in an off-site context.

Assessment is to comply with relevant regulatory or Australian standards' requirements.

Resource implications for assessment include:

an induction procedure and requirement

realistic tasks or simulated tasks covering the minimum task requirements

relevant specifications and work instructions

tools and equipment appropriate to applying safe work practices

support materials appropriate to activity

workplace instructions relating to safe working practices and addressing hazards and emergencies

material safety data sheets

research resources, including industry related systems information.

Reasonable adjustments for people with disabilities must be made to assessment processes where required. This could include access to modified equipment and other physical resources, and the provision of appropriate assessment support.

Method of assessment

Assessment methods must:

satisfy the endorsed Assessment Guidelines of the Construction, Plumbing and Services Training Package

include direct observation of tasks in real or simulated work conditions, with questioning to confirm the ability to consistently identify and correctly interpret the essential underpinning knowledge required for practical application

reinforce the integration of employability skills with workplace tasks and job roles

confirm that competency is verified and able to be transferred to other circumstances and environments.

Validity and sufficiency of evidence requires that:

competency will need to be demonstrated over a period of time reflecting the scope of the role and the practical requirements of the workplace

where the assessment is part of a structured learning experience the evidence collected must relate to a number of performances assessed at different points in time and separated by further learning and practice, with a decision on competency only taken at the point when the assessor has complete confidence in the person's demonstrated ability and applied knowledge

all assessment that is part of a structured learning experience must include a combination of direct, indirect and supplementary evidence.

Assessment processes and techniques should as far as is practical take into account the language, literacy and numeracy capacity of the candidate in relation to the competency being assessed.

Supplementary evidence of competency may be obtained from relevant authenticated documentation from third parties, such as existing supervisors, team leaders or specialist training staff.

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 applications

interpreting plans and specifications

may be for new projects or an existing structure being renovated, extended, restored or maintained.

Design requirements include:

architectural specifications

builder specifications

owner requirements

specialist 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 titling

AS/NZS3500 National plumbing and drainage set: Parts 2.1 and 2.2

AS2200 Design charts for water supply and sewerage.

Manufacturer requirements include:

analysis of sound transmission values

pump tables

sizing tables

specifications

technical and trade manuals.

Desktop study includes:

collection and interpretation of existing data for design purposes from:

architectural and building plans

council plans

developer plans

other documents, including:

applications

forms

other 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 velocity

linking of building compartments by pipework

loose pipework

noisy fixtures and appliances

pumped hydraulic systems

quick action valves

water hammer.

Layout of pipework systems include:

proximity of residential compartments

sound transmission category of building compartments.

System calculations include:

decibel calculations

noise insulation characteristics of materials

sound transmission values of plumbing pipework and building materials.

Pumped hydraulic systems include:

circulating systems

compressed air systems

pressurised water mains

pump and pump installation

pumproom

sanitary rising mains

steam systems.

Pipe fixings cover fixings that do not impinge on sound attenuation of the hydraulic service and include:

anchors

bracket spacing

corrosion protection

hanging brackets

material requirements

saddles

wall and ceiling brackets.

Materials include:

cast iron

copper

polyethylene

specialist sound attenuation piping materials and sound attenuating insulation materials.

unplasticised polyvinyl chloride (PVC-U).

Installation requirements include:

clipping

installation details

jointing requirements

level of workmanship

support.

Material combinations include:

ducts

floor and ceiling systems

insulation

plasterboard

separation distances

wall.

Plans may include:

axonometrics

cross-sections

details

elevations

isometrics

schematics, which may be produced using:

pencil

Indian ink

pigment liner

computer generation

sections.

Specification includes:

clipping

details of specialised components

manufacturer requirements

materials

workmanship.

Testing includes:

compliance testing

quality assurance (QA) audit

sound measurement (dB).

Commissioning schedule includes:

insulation gap filling.

Operation and maintenance manual includes:

regular maintenance requirements

yearly inspection.

Unit sector

Plumbing and services

Nil

This unit contains employability skills.