CPCPIG3021A - SET OUT INSTALL AND COMMISSION IRRIGATION SYSTEMS
CONSTRUCTION, PLUMBING AND SERVICE
INTEGRATED FRAMEWORK
TRAINING PACKAGE
CPC08
CPCPIG3021A
SET OUT, INSTALL AND COMMISSION IRRIGATION SYSTEMS
LEARNING GUIDE
ACKNOWLEDGEMENTS
National Plumbing Services Training Advisory Group
Plumbing Industry Commission Victoria
© Commonwealth of Australia 2015
Construction and Property Services Industry Skills Council
PO Box 151
Belconnen ACT 2616
Tel: 02 6253 0002
www.cpsisc.com.au
This work is copyright, but permission is given to trainers and teachers to make copies and contextualise the resources for use within their own training organisation or in a workplace where training is being conducted. This permission does not extend to making copies for use outside the immediate training environment for which they are made, or the making of copies for hire or resale to third parties.
This work was first published in 2004 with the assistance of funding provided by the Commonwealth Government through the Australian National Training Authority (ANTA). The 2015 publication has been updated to reflect changes to the national units of competency.
The views expressed in this work do not necessarily represent the views of the Commonwealth of Australia or CPSISC. In addition, the Commonwealth of Australia and CPSISC do not give warranty or accept any legal liability in relation to the content of this work.
The website addresses and other contact information provided in this publication were compiled in good faith and were correct at the time of printing.
The updating of these resources was completed by:
National Plumbing and Services Training Advisory Group, with funding and support provided by the Construction and Property Services Industry Skills Council (CPSISC):
This guide was developed in consultation with representatives of the Plumbing Industry by NPSTAG and CPSISC to support the implementation of the CPC08 Construction, Plumbing and Services Training Package.
Contents
What is this resource about? 1
How do I use this resource? 1
Flexible Delivery 1
What do I have to do? 2
Unit Descriptor 2
Element 2
Performance Criteria 2
Required knowledge 5
How will I be assessed? 4
Are there any pre-requisites? 4
What other resources will I need? 5
Texts 5
Video or audio cassettes 5
Safety 5
Introduction 6
Properties of water 6
Pressure 7
Flow rate 7
Measuring water flow rates for a domestic irrigation 8
Measuring the water flow using a bucket and stop watch 8
Example 8
Measuring the water flow using a dynamic flow testing device 9
Types of irrigation systems 11
Type A 12
Type C 14
Type D 14
Materials and components 15
Jointing techniques 15
Copper compression joints 16
Silver brazed joints 16
Polyethylene compression joints 16
PVC-U Solvent cement joints 17
Regulations 18
Quality assurance 18
WHS requirements 20
Others involved 20
Work notices 20
Planning work activities 21
Moving and handling materials 22
Determining installation requirements 23
Selecting appropriate materials 23
Ordering and checking the delivery 24
Installing and commissioning the system 26
Setting out 26
Excavating the site 26
Installing the pipes 27
Flushing the pipe lines 27
Installing the components 27
Strainer or filter assembly 29
Backflow prevention device 29
Solenoid valves 29
Water emitters 29
Testing and commissioning the system 32
Backflow prevention device 32
Sprinkler output 32
Sprinkler spray pattern 32
Reinstating the environment and cleaning up 33
Backfilling 33
Cleaning up 33
Worksheet 34
Practical application 37
Assessment checklist 39
© Commonwealth of Australia 2015 37
CPCPIG3021A - SET OUT INSTALL AND COMMISSION IRRIGATION SYSTEMS
What is this resource about?
Welcome to CPCPIG3021A – Set out, install and commission irrigation systems. This resource will help you gain the skills and knowledge necessary to demonstrate competence in this unit.
How do I use this resource?
This resource is divided into four main sections:
· A learning unit, which contains background information on setting out, installing and commissioning irrigation systems
· Worksheets, which prepare you for the practical application
· Practical application, which allows you to experience setting out, installing and commissioning irrigation systems
· Assessment materials, which help you demonstrate competency.
To complete this unit of competence you will need to:
· read the information contained in the learning unit
· complete the worksheets as instructed
· have your answers checked by your trainer or supervisor
· work with your trainer or supervisor to practise setting out, installing and commissioning irrigation systems
· read the assessment checklist together with the assessment sheets
· complete the assessment.
Learning Resources are not intended to be the only source of information nor are they intended to be an exhaustive form of instruction.
Flexible Delivery
The Trainer or Supervisor may adapt and deliver this Learning Resource to suit people from diverse backgrounds to meet equity principles and conform to Legislative policies.
What do I have to do?
To demonstrate competence in this unit you will be required to show the level of skills and knowledge for each of the elements involved in CPCPIG3021A – set out, install and commissioning irrigation systems:
· Prepare for work
· Determine installation requirements
· Install and commission system
· Reinstate environment and clean up.
If you are unsure of the meaning of these elements you should read the performance criteria on the following page.
To be competent in this unit you will need to demonstrate:
CPCPIG3021A / Set out, install and commission irrigation systemsUnit Descriptor / This unit of competency specifies the outcomes required to set out, install and commission irrigation systems.
Element / Performance Criteria
Elements define the essential outcomes of a unit of competency. / Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the required skills and knowledge section and the range statement. Assessment of performance is to be consistent with the evidence guide.
1 Prepare for work / 1.1 Plans and specifications are obtained
1.2 Work health and safety (WHS) and environmental requirements associated with setting out, installing and commissioning irrigation systems are adhered to throughout the work
1.3 Quality assurance requirements are identified and adhered to according to workplace requirements
1.4 Tasks are planned and sequenced in conjunction with others involved in or affected by the work and statutory and regulatory authorities’ requirements
1.5 Tools and equipment for setting out, installing and commissioning irrigation systems, including personal protective equipment, are selected and checked for serviceability
1.6 Work area is prepared to support efficient setting out, installation and commissioning of irrigation systems
2 Identify installation requirements / 2.1 Irrigation system requirements are identified from plans, specifications and relevant information
2.2 Underground services are located and identified
2.3 Flow rate and water pressure are checked for compliance with plans and specifications
2.4 Piping and system components are selected to comply with standards, plans and specifications
2.5 Materials and equipment are identified, ordered and collected according to workplace procedures
2.6 Materials and equipment are checked for compliance with standards, docket and order form, and for acceptable condition
3 Install and commission irrigation system / 3.1 Irrigation pipes are set out according to plans, specifications and site requirements
3.2 Pipe trenches are excavated according to plans and specifications
3.3 Pipe system is installed according to plans, specifications, site requirements, manufacturer recommendations and standards, and sustainability principles and concepts
3.4 Pipelines are flushed of air and foreign matter to installation standard
3.5 Backflow prevention device is installed according to standards
3.6 Water emitters are installed and adjusted to produce required spray pattern
3.7 Control valves are installed, operated and adjusted to achieve specified flow rate
3.8 Installation is tested to comply with standards and authorities' requirements, and is adjusted
3.9 Trenches are backfilled according to plans and specifications and ground surface is reinstated
4 Clean up / 4.1 Work area is cleared and materials disposed of, reused or recycled according to legislation, regulations, codes of practice and job specification
4.2 Tools and equipment are cleaned, checked, maintained and stored according to manufacturer recommendations and workplace procedures
4.3 Documentation is completed according to workplace requirements
Required knowledge
/ Required knowledge for this unit is:· characteristics and application of different pipes and fittings, including fixing and joining techniques and methods
· job safety analysis (JSA) and safe work method statements (SWMS)
· process of setting out, installing and commissioning irrigation systems
· processes for accessing information and for calculating material requirements
· properties of water, including pressure and flow rates
· protection of drinking water supplies
· relevant statutory and authority requirements related to installing and commissioning irrigation systems
· SI system of measurement
· standards applicable to the installation
· various types of irrigation systems, including types of materials and components used
· workplace and equipment safety requirements
An up to date version of the ‘Unit Descriptor’ may be located on the Australian Government web site training.gov.au
http://training.gov.au/Search/Training?searchTitleOrCode=&nrtSearchSubmit=Search&includeSupersededData=true&includeSupersededData=false&homePage=true&javaScriptEnabled=true&typeAllTrainingComponents=true
How will I be assessed?
Your trainer or supervisor will decide with you how you will be assessed. Your assessment activity may include completion of the student worksheet and practical task selected by your trainer or supervisor. Your assessment should allow you to demonstrate all the skills and knowledge required to set out, install and commission irrigation systems.
This unit may be assessed in conjunction with other units of competence. Your trainer or supervisor will tell you if you are to be assessed this way.
Are there any pre-requisites?
Prior to commencing CPCPIG3021A – Set out, install and commission irrigation systems you must have successfully completed the following pre-requisite.
· CPCPCM2043A - Carry out WHS requirements.
It is also recommended that prior to commencing CPCPIG3021A – Set out, install and commission irrigation systems you should have successfully completed the following competencies:
· CPCPIG3022A – Install and commission domestic irrigation pumps.
Project work may also group pre-requisite and or co-requisite competencies together to carry out such projects. It is recommended that the following competencies are grouped with this unit of competency:
· Nil.
What other resources will I need?
To assist you the following resources have been suggested and should be available to you to do this competency:
Texts
· AS/NZS3500 - Plumbing and drainage.
· Plumbing code of Australia
· State or Territory Regulations may override this Learning Guide.
Video or audio cassettes
Safety
Workplace health and safety (WHS) requirements need to be observed in accordance with legislation. You need to know the WHS laws governing your job.
In any work situation you can reduce the risk of injury to yourself and others by using appropriate personal protective equipment (PPE). The types of PPE that you will need include:
· overalls – used for the protection of the installer when working in different conditions
· boots – it is recommended that soft soled footwear is worn while working on roofs, as deep grooved footwear pick up small stones and debris that might damage or scratch the roof sheets
· safety glasses or goggles to protect the eyes from injury when cutting the sheets with a power saw
· ear plugs or muffs to protect the installer’s hearing from excessive noise
· dust masks or respirators to protect the user from breathing in dust or fine particles when cutting the sheets with a power saw
· gloves, for the protection of the installer’s hands when working with different types of pipes, tools and equipment.
Introduction
In this unit you will look at setting out, installing and commissioning irrigation systems.
Typically a landscape consultant or designer will be contracted to design and lay out an irrigation system which is suitable for the area and vegetation requiring irrigation. The designer will produce a specification and a set of scaled and detailed drawings showing the proposed irrigation project. Using the information available from the specification and drawings you will be able to set out, install and commission the irrigation system.
The installation could range from a simple irrigation system for a lawn area requiring pop up sprinklers to a more complex system for a garden area combining drippers and fixed and pop up sprays or sprinklers.
Before you can set out, install and commission irrigation systems there are several things you must know including:
· properties of water including pressure and flow rates
· measuring water flow rates for a domestic irrigation
· various types of irrigation systems
· types of materials and components used in irrigation systems
· jointing and fixing techniques.
Properties of water
If you are using water from a source other than a reticulated main you will need to have the water analysed to see if it is suitable for irrigation purposes. The water salinity (salt content) may be too high for the plants you intend to irrigate. Water from a reticulated supply will usually be suitable for irrigation purposes.
Wherever the water supply is from, you will need to determine the supply properties of the water. The water supply properties that affect irrigation are pressure and flow.
Pressure
Supply water pressure can be measured in two ways.
Static pressure / This is the pressure available when there is no water flowing. This pressure does not indicate there will be enough water flow for the irrigation system.Dynamic pressure / This is the pressure available when the water is flowing at the required flow rate. This pressure will indicate if you have enough pressure and water flow combined to supply the irrigation system requirements.
The units of pressure are Pascals (abbreviated to Pa). However, a Pascal is very small, so water pressure is usually measured in kilo Pascals (kPa). One kilo Pascals (kPa) is equal to 1000 Pascals (Pa).
Manufacturers may use other units to measure pressure. The following table lists the other pressure units commonly used and how to convert them to kilopascals.
To convert / Do this / ExamplePounds per square inch (psi) to kilopascal (kPa) / Multiply the psi
by 6.89 / To convert 20 psi to kPa
20 x 6.89 = 138kPa
Bars to kilopascal (kPa) / Multiply the bars by 100 / To convert 1.38 bars to kPa 1.38 x 1000 = 138kPa
Flow rate