Localised repair and sealing is used to fix minor structural defects in pipes, these may include joint sealing, sleeve or patch repairs, resin injection systems, fill and drain systems, robotic repairs, mechanical sealing and pipe re-rounding when repairing or renovating non-man-entry pits, including sewer, gas and water.
This unit is appropriate for those working in operational roles, at worksites within:
Elements and Performance Criteria
1. Plan and prepare
1.1. Access, interpret and apply compliance documentation relevant to the undertaking of localised repair and sealing of existing pipeline systems
1.2. Obtain, confirm and apply work instructions, including plans, specifications, quality requirements and operational details to the allotted task
1.3. Obtain and confirm safety requirements from the site safety plan and organisational policies and procedures, and apply to the allotted task
1.4. Identify, obtain and implement signage requirements from the project traffic management plan
1.5. Ensure plant, tools and equipment selected to carry out tasks are consistent with the requirements of the job, check for serviceability and rectify or report any faults
1.6. Identify and confirm environmental protection requirements from the project environmental management plan, and apply to the allotted task
2. Perform site survey
2.1. Notify property owners and occupiers and approval for entry onto their property obtained
2.2. Determine site conditions by visual inspection, plans, discussion with land owners and information from service utilities
2.3. Locate underground utilities
2.4. Maintain system serviceability during rehabilitation works in accordance with asset owners' policies, allowable duration of service interruption, and project specifications
2.5. Survey and record existing site conditions
3. Initiate rehabilitation works
3.1. Prepare entry and exit pits where specified in accordance with site and OHS requirements
3.2. Follow confined space entry procedures
3.3. Monitor installation process and finished product to ensure conformity to the design requirements in accordance with manufacturer's specifications and project specifications
4. Undertake localised repair and sealing
4.1. Determine fault with the aid of plans, drawings, CCTV recording or other mechanisms
4.2. Select repair or sealing method appropriate to the fault
4.3. Apply pressure cleaning to the designated location
4.4. Install repair or sealing material to comply with design requirements and manufacturer's specifications
4.5. Conduct curing process to comply with manufacturer's specifications
4.6. Correct secure and seal termination at ends of process in accordance with manufacturer's specifications
4.7. Open junctions for inspection and operation
4.8. Monitor installation process and finished product to ensure conformity to the design requirements in accordance with manufacturer's specifications
5. Clean up
5.1. Clear work area and dispose of or recycle materials in accordance with project environmental management plan
5.2. Clean, check, maintain and store plant, tools and equipment
Specific skills are required to achieve the performance criteria in this unit, particularly for the application in the various circumstances in which this unit may be applied. This includes the ability to carry out the following as required to undertake localised repair and sealing of existing pipeline systems:
apply legislative, organisation and site requirements and procedures
apply site and equipment safety requirements
apply laser control equipment
apply manual handling
apply confined space entry
interpret engineering drawings, plans and specifications
apply equipment types, characteristics, technical capabilities and limitations
apply operational, maintenance and basic diagnostic procedures
apply site isolation and traffic control responsibilities
apply materials safety data sheets and materials handling methods
apply project quality requirements
apply localised repair and sealing methods
identify pipeline systems
apply JSA's/safe work method statement
Specific knowledge is required to achieve the Performance Criteria of this unit, particularly its application in a variety of circumstances in which the unit may be used. This includes knowledge of the following, as required to undertake localised repair and sealing of existing pipeline systems:
site and equipment safety requirements
laser control equipment
confined space entry
processes for interpreting engineering drawings
equipment types, characteristics, technical capabilities and limitations
operational, maintenance and basic diagnostic procedures
site isolation and traffic control responsibilities and authorities
materials safety data sheets and materials handling methods
project quality requirements
civil construction terminology
localised repair and sealing methods
JSA's/safe work method statement
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
Critical aspects for assessment and evidence required to demonstrate competency in this unit
The evidence required to demonstrate competency in this unit must be relevant to worksite operations and satisfy all of the requirements of the performance criteria, required skills and knowledge and the range statement of this unit and include evidence of the following:
knowledge of the requirements, procedures and instructions for undertaking localised repair and sealing of existing pipeline systems
implementation of requirements, procedures and techniques for the safe, effective and efficient completion of at least two localised repair and sealing of existing pipeline systems
working with others to undertake and complete the localised repair and sealing of existing pipeline systems that meets all of the required outcomes
consistent timely completion of undertaking localised repair and sealing of existing pipeline systems that safely, effectively and efficiently meets the required outcomes
Context of and specific resources for assessment
This unit must be assessed in the context of the work environment. Where personal safety or environmental damage are limiting factors, assessment may occur in a simulated environment provided it is realistic and sufficiently rigorous to cover all aspects of workplace performance, including task skills, task management skills, contingency management skills and job role environment skills.
The assessment environment should not disadvantage the participant. For example, language, literacy and numeracy demands of assessment should not be greater than those required on the job.
Customisation of assessment and delivery environment to sensitively accommodate cultural diversity.
Aboriginal people and other people from a non English speaking background may have second language issues.
Assessment of this competency requires typical resources normally used in the work environment. Selection and use of resources for particular worksites may differ due to site circumstances.
Where applicable, physical resources should include equipment modified for people with disabilities.
Access must be provided to appropriate learning and/or assessment support when required.
Method of assessment
This unit may be assessed in a holistic way with other units of competency. The assessment strategy for this unit must verify required knowledge and skill and practical application using more than one of the following assessment methods:
written and/or oral assessment of the candidate's required knowledge
observed, documented and/or first hand testimonial evidence of the candidate's:
implementation of appropriate requirement, procedures and techniques for the safe, effective and efficient achievement of required outcomes
consistently achieving the required outcomes
first hand testimonial evidence of the candidate's:
working with others to undertake and complete the localised repair and sealing of existing pipeline systems
Guidance information for assessment
Consult the SkillsDMC User Guide for further information on assessment including access and equity issues.
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.
Relevant compliance documentation
legislative, organisational and site requirements and procedures
manufacturer's guidelines and specifications
code of practice
Employment and workplace relations legislation
Equal Employment Opportunity and Disability Discrimination legislation
Signage may include:
site safety signage
temporary signage for the benefit of motorists and pedestrians
traffic conditions signage
Tools and equipment may include:
repair and sealing equipment
electronic tracking devices
slings and cranes
Environmental protection requirements may include:
organisational/project environmental management plan
water quality protection
Drilling fluid may include:
bentonite and water. Often known as mud it carries the debris in suspension and is then filtered through a recirculation system
Monitoring of repair and sealing may include:
hand wired guidance system
Refer to Unit Sector(s).
This unit contains employability skills.
Refer to Unit Descriptor.