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Follow the links below to find material targeted to the unit's elements, performance criteria, required skills and knowledge

Elements and Performance Criteria

  1. Evaluate design parameters.

Required Skills

Required skills

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

use language and concepts appropriate to cultural differences

use and interpret nonverbal communication such as hand signals

initiative and enterprise skills to develop creative and responsive approaches

literacy skills to

prepare documentation including

operation and maintenance manual

plans specifications and schedules

read and interpret

plans specifications drawings and design briefs

standards and manufacturer requirements and manuals

statutory and regulatory requirements

numeracy skills to

apply measurements and calculations

interpret data

planning and organising skills to

research collect organise and understand information relating to the design of siphonic stormwater systems

take initiative and make decisions

problemsolving 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

technical skills to

determine installation details for siphonic stormwater drainage systems

prepare specifications for siphonic stormwater drainage systems

technology skills to

access and understand sitespecific instructions in a variety of media

use mobile communication technology

Required knowledge

common terminology and definitions used in design of siphonic stormwater drainage systems for residential commercial and industrial buildings

drafting principles

nature of materials used and effects of performance under various conditions

procedures for estimating volume of stormwater runoff from rainwater collection areas

principles of technology in the design of siphonic stormwater drainage systems

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

work health and safety WHS requirements including relevant statutory regulations codes and standards

Evidence Required

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 projectbased 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 as a minimum provide evidence of the ability to

design size and document the layout details including a specification of a siphonic system for a site incorporating a highrise mixed development building and a wide span project such as a school to include

applying sustainability principles and concepts throughout

evaluating and documenting design parameters to relevant Australian standards codes and manufacturer requirements for a range of siphonic stormwater drainage systems

evaluating health risks associated with the siphonic system

designing and sizing siphonic stormwater drainage systems using appropriate calculations and computer software

selecting materials and components for compliance fit for purpose durability compatibility and costeffectiveness

preparing testing and commissioning schedules

producing operation and maintenance manuals

communicating with others to ensure safe and effective workplace operations

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 offsite 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 including design brief drawings specifications codes design concepts and construction schedules

tools and equipment appropriate to applying safe work practices including computers software and calculators

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

material safety data sheets

research resources including industryrelated 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 persons 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


Range Statement

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 intervals

meteorological information

rainfall intensities

stormwater collection area calculations

time and concentration

interpretation of plans and specifications

sizing 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 requirements

architectural plans

building specifications

pipework identification

catchment area

approved point of discharge

acoustic performance.

Siphonic system attributes must include:

availability

cost

installation requirements

risks

site 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 project

must include:

design styles

expected design life

labour costs

material costs

safety factors

speed of installation.

Statutory and regulatory requirements and relevant Australian standards and codes may include:

AS/NZS3500 National plumbing and drainage

AS2200 Design charts for water supply and sewerage

commonwealth, state or territory requirements and local governments requirements

National Construction Code

other relevant Australian standards and codes.

Manufacturer requirements may include:

material specifications

sizing tables

technical and trade manuals

special siphonic drainage collection inlets.

Desktop study may include collection and interpretation of existing data for design purposes in:

architectural and building plans

manufacturer data

developer plans

other documents, including:

applications

brochures

forms

policies

other 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 performance

amenity of the building

clipping and pipe support

fireproofing

function of the building

impingement on floor heights

location of pipework (fire rating of enclosure)

materials to be used

size of penetrations

type of building structure

should not unduly affect building integrity and aesthetic appeal

should have principles of economy, serviceability, durability and fit for use applied.

Fittings may include:

bends

junctions.

Pipe size and flow requirement calculations may include:

discharge

flow

manufacturers’ tables

sizing, according to relevant Australian standards and codes

velocity

volumes.

Pipe supports may include:

anchors

bracket spacing

corrosion protection

cover

hanging brackets

material requirements

saddles

wall 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 steel

other approved material

components, may include:

clips

fasteners

fittings

pipework

siphonic collection inlets.

Jointing methods may include:

brazing

electrofusion welding

mechanical joints

rubber ring

other approved jointing methods.

Installation requirements must include:

pipe protection, which may include:

corrosion

impact

fire rating

level of workmanship

manufacturer-recommended specific fixings

pipe support

provision for expansion

serviceability and access.

Computer software packages may include:

manufacturer software

proprietary design software.

Sustainability principles and concepts:

cover the current and future social, economic and environmental use of resources

may include:

selecting appropriate material to ensure minimal environmental impact

efficient use of material

efficient energy usage/capital outlay comparison

effect on the environment due to overflow or leakage

consideration of the Green Building Council of Australia rating scheme.

Plans:

may include:

axonometrics

elevations

details

cross-sections

isometrics

schematics

sections

may be produced using:

computer generation

drawing equipment.

Specification may include:

commissioning

bedding

support

jointing

manufacturer requirements

materials

testing

workmanship

work health and safety (WHS).

Testing may include:

hydrostatic test

inspection

performance

quality assurance (QA) audit.

Commissioning schedule may include:

system certification

checking for foreign material

checking leaks

cleaning grates

system defects

system functions as per design.

Operation and maintenance manual may include:

as installed drawings

certification documentation

results of commissioning test

maintenance schedules

manufacturer brochures and technical information

check for blockages

leak detection

regular inspection

regular maintenance requirements.