Elements and Performance Criteria

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.
Isolation
Isolation is a process for ensuring no energy or material can enter the isolated area
Plant energy sources
Plant energy sources may include, but are not limited to:
electricity (mains, solar and by generator)
chemicals and fuels
heat and steam
pneumatic pressure (compressed air, and other fluids under pressure, such as water or hydraulic oil)
energy storing devices, such as batteries, springs, flywheels, accumulators and capacitors
gravity (and its ability to cause items to fall)
radiation
Control releases
Controlling releases to the environment may include, but is not limited to:
preventing any release
containing any release
recovery and reuse or disposal of any release
Preparation
Preparation is a process for ensuring that plant and equipment is in a safe and appropriate condition for the required work. Preparation may include, but is not limited to:
draining
purging
inerting
ventilating
controlling atmosphere (e.g. to ensure it is breathable, and is not within the flammable range)
adjusting temperature to make a workable environment
adjusting pressure (usually to atmospheric)
ensuring adequate access and egress
Isolation plan
Execution of the isolation plan may include, but is not limited to:
confirming availability of plant, equipment and/or systems
verifying plant, equipment and/or systems
verifying isolation location
securing and identifying isolation points
labelling isolation points
doing the isolations
managing the isolations
managing lock out/tag out to procedure
cross checking isolations
undertaking self-isolation, were appropriate
Remove materials and energy
Removing materials and energy may include, but is not limited to:
draining, purging and venting of process materials
mitigation of stored energy
appropriately catching and disposing of any removed materials
Effectiveness of isolation

Proving the effectiveness of the isolation may include, but will not be limited to:
checking that any leaks are acceptable
proving depressuring
proving purging
checking bleed from double block and bleed, where appropriate
proving the atmosphere is as required
using gas detectors/meters
proving the isolation is effective
surveillance of isolations
Required paperwork

Required paperwork may include, but is not limited to:
isolation register
lock out/tag out register
required reports
required permits/work packs
filing of documentation
Paperwork will conform to the site requirements and document control systems
Paperwork may be:
paper, electronic or other approved form
Test as required
Testing of plant as required as part of preparation for return to service may include, but is not limited to:
pressure and leak testing
atmosphere/gas testing
testing the restoration of utilities and services

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 should be assessed as holistically as is practical and will generally be assessed using a workplace project as a significant assessment activity.
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 the ability to:
perform isolations to plan for a significant item of equipment or plant area
prepare plant for the work to plan
prepare plant for return to service to plan.
Context of and specific resources for assessment
Assessment of performance must be undertaken in a workplace.
Access may be required to:
workplace procedures and plans relevant to work area
specifications and documentation relating to planned work
documentation relating to the plant, process and materials
the isolation and preparation plan
any other materials which would normally be available in the workplace while conducting this activity.
Guidance information for assessment
Assessment processes and techniques must be culturally appropriate and appropriate to the oracy, language and literacy capacity of the assessee and the work being performed.