Unit of competency Outline
Date retreived
22/07/2026 9:03 PM AWST
22/07/2026 9:03 PM AWST
Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.
Disconnect/reconnect fixed wired equipment up to 1000 volts a.c./1500 volts d.c.
Disconnect/reconnect fixed wired equipment up to 1000 volts a.c./1500 volts d.c.
Unit of competency
National Code
MEM18049B
MEM18049B
State Code
W5594
W5594
TGA Status
Replaced
Replaced
DTWD Status
Replaced
Replaced
State Implementation and Classification
Approved Date
26/10/2006
Field of Education
031313 - Electrical Fitting, Electrical Mechanics
Original Release Date
26/10/2006
Nominal Hours
27
Description
This unit covers connecting and disconnecting equipment. This unit applies to all voltage levels up to1000 volts a.c./1500 volts d.c.
Notes
Elements and Performance Criteria
1 Disconnect equipment
- 1.1 Electrical characteristics of equipment and circuit are determined by reference to circuit drawings, schematics, reference manuals, equipment specifications, identification plate and/or consultation with technical adviser.
- 1.2 Where appropriate, equipment characteristics are determined and recorded to standard operating procedures (rotation etc.).
- 1.3 Point/s of isolation are identified using correct and appropriate procedure.
- 1.4 Equipment is isolated using correct and appropriate techniques and procedures.
- 1.5 All lock-off equipment and signage requirements are used correctly and appropriately.
- 1.6 Electrical isolation is proven using correct and appropriate techniques, procedures and test equipment.
- 1.7 Conductor layout is noted, recorded and labelled to standard operating procedure.
- 1.8 Conductors are disconnected using correct and appropriate techniques, procedures, tools and equipment.
- 1.9 Disconnected cables/connections are terminated and made safe to standard operating procedures.
2 Connect equipment
- 2.1 Characteristics of the equipment to be connected are identified and connection requirements are determined.
- 2.2 Circuit is checked for safe isolation using correct and appropriate techniques, procedures and test equipment.
- 2.3 Connections are checked and conductors are prepared for termination using correct and appropriate tools and procedures.
- 2.4 Conductors are connected to equipment to specifications using correct and appropriate techniques, tools and equipment.
- 2.5 All cables/wires/conduit are fastened/sealed to specifications using correct and appropriate techniques, tools and equipment.
- 2.6 All lock-off equipment and signage are removed using standard operating procedures.
- 2.7 Equipment and circuit are checked and tested for compliance with specifications using correct and appropriate techniques, procedures, tools and equipment.
3 Perform emergency first aid
- 3.1 Situation is assessed to identify points of danger to the injured person and potential rescuer.
- 3.2 Rescue/recovery of injured person or assistance to injured person is undertaken in accordance with recognised standards/procedures. Contact is made with the appropriate medical and rescue authorities.
- 3.3 Details of first aid given are recorded.
The range statement provides information about the context in which the unit of competency is carried out. The variables and scope cater for different work requirements, work practices and knowledge between States, Territories and the Commonwealth, and between organisations and workplaces. The range statement relates to the unit as a whole and provides a focus for assessment. Text in italics in the performance criteria is explained here.
The following variables may be present and may include, but are not limited to, the examples listed under the scope. All work is undertaken to relevant legislative requirements, where applicable
Variable
Scope
Equipment
As defined in the licensing requirements
Isolation refers to
Safe disconnection of all electrical power to equipment or equipment supply circuits via switching, circuit breakers or fuses etc. On circuits/equipment using up to 1000 volts a.c. or 1500 volts d.c. single or multi-phase supply
Test equipment
Voltmeters, multimeters, tong testers and a range of hand tools such as pliers, screwdrivers, sockets and spanners
Connect equipment
Refers to reconnection of existing equipment or the replacement on a 'like for like' basis with no alteration to existing fixed wiring
The following variables may be present and may include, but are not limited to, the examples listed under the scope. All work is undertaken to relevant legislative requirements, where applicable
Variable
Scope
Equipment
As defined in the licensing requirements
Isolation refers to
Safe disconnection of all electrical power to equipment or equipment supply circuits via switching, circuit breakers or fuses etc. On circuits/equipment using up to 1000 volts a.c. or 1500 volts d.c. single or multi-phase supply
Test equipment
Voltmeters, multimeters, tong testers and a range of hand tools such as pliers, screwdrivers, sockets and spanners
Connect equipment
Refers to reconnection of existing equipment or the replacement on a 'like for like' basis with no alteration to existing fixed wiring
The evidence guide specifies the evidence required to demonstrate achievement in the unit of competency as a whole. It must be read in conjunction with the unit descriptor, performance criteria, range statement and the assessment guidelines for the Metal and Engineering Training Package
Overview of assessment requirements
A person who demonstrates competency in this unit must be able to disconnect/reconnect fixed wired equipment up to 1000 volts a.c./1500 volts d.c. Competency in this unit cannot be claimed until all prerequisites have been satisfied.
Context of assessment
This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.
Interdependent assessment
This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with disconnecting/reconnecting fixed wired equipment up to 1000 volts a.c./1500 volts d.c., or other units requiring the exercise of the skills and knowledge covered by this unit.
Method of assessment
Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.
Consistency of performance
Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.
Required skills
Look for evidence that confirms skills in:
determining and recording equipment characteristics and isolation points from relevant circuit diagrams, specifications, schematics of fixed wired equipment
isolating fixed wired equipment
using lock-off equipment and tags/signs
proving electrical isolation
labelling conductors and recording their layout
disconnecting conductors
making safe disconnected cables/connections
checking circuits for safe isolation prior to reconnecting
checking connections and preparing conductors for termination
connecting conductors to equipment
fastening/sealing cables/wires/conduits to specifications
removing lock-off equipment and signage
checking and testing equipment and circuits for conformance to specifications
applying procedures for movement/treatment of injured, including:
safe rescue of victim from a live situation
clearing of airways
CPR (cardio-pulmonary resuscitation)
care of spinal injuries
treatment of cuts/lesions etc.
treatment of burns/scalds
treatment of shock
using language and literacy skills to meet recording and reporting requirements related to this unit
Required knowledge
Look for evidence that confirms knowledge of:
basic knowledge of electrical theory for the operation of the circuit/equipment
hazards associated with the circuits and the equipment
relevant regulatory requirements
procedures for determining equipment characteristics
procedures for recording equipment characteristics
tools, techniques and equipment required to determine equipment characteristics
point(s) of isolation for the fixed wired equipment
reasons for selecting the chosen isolation point(s)
safe isolation and proving dead
the range of isolation procedures for the fixed wired equipment
lock-off equipment and signs to be used
reasons for using and procedures for lock-off equipment and signage
tools, techniques and equipment to be used to prove electrical isolation
procedures for proving and removing electrical isolation
procedures for labelling conductors and recording conductor layout
tools, techniques and equipment to be used to disconnect conductors
procedures for disconnecting conductors
procedures for terminating disconnected cables/connections
characteristics of the circuit and the equipment
tools, techniques and equipment to be used to terminate conductors and check connections
procedures for terminating conductors and checking connections
specifications for the connections to be made
tools, techniques and equipment to be used to connect the conductors to the equipment
procedures for connecting conductors to equipment
tools, techniques and equipment to be used to fasten and seal the cables, wires and conduits
procedures for fastening and sealing cables, wires and conduits
operational specifications of the fixed wired equipment
tools, techniques and equipment to be used to check and test the compliance of the equipment with specifications
procedures for checking the operation of the equipment and circuits
potential dangers
recognised procedures for the movement and treatment of the injured person
appropriate local medical and rescue services
procedures for recording first aid
Overview of assessment requirements
A person who demonstrates competency in this unit must be able to disconnect/reconnect fixed wired equipment up to 1000 volts a.c./1500 volts d.c. Competency in this unit cannot be claimed until all prerequisites have been satisfied.
Context of assessment
This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.
Interdependent assessment
This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with disconnecting/reconnecting fixed wired equipment up to 1000 volts a.c./1500 volts d.c., or other units requiring the exercise of the skills and knowledge covered by this unit.
Method of assessment
Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.
Consistency of performance
Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.
Required skills
Look for evidence that confirms skills in:
determining and recording equipment characteristics and isolation points from relevant circuit diagrams, specifications, schematics of fixed wired equipment
isolating fixed wired equipment
using lock-off equipment and tags/signs
proving electrical isolation
labelling conductors and recording their layout
disconnecting conductors
making safe disconnected cables/connections
checking circuits for safe isolation prior to reconnecting
checking connections and preparing conductors for termination
connecting conductors to equipment
fastening/sealing cables/wires/conduits to specifications
removing lock-off equipment and signage
checking and testing equipment and circuits for conformance to specifications
applying procedures for movement/treatment of injured, including:
safe rescue of victim from a live situation
clearing of airways
CPR (cardio-pulmonary resuscitation)
care of spinal injuries
treatment of cuts/lesions etc.
treatment of burns/scalds
treatment of shock
using language and literacy skills to meet recording and reporting requirements related to this unit
Required knowledge
Look for evidence that confirms knowledge of:
basic knowledge of electrical theory for the operation of the circuit/equipment
hazards associated with the circuits and the equipment
relevant regulatory requirements
procedures for determining equipment characteristics
procedures for recording equipment characteristics
tools, techniques and equipment required to determine equipment characteristics
point(s) of isolation for the fixed wired equipment
reasons for selecting the chosen isolation point(s)
safe isolation and proving dead
the range of isolation procedures for the fixed wired equipment
lock-off equipment and signs to be used
reasons for using and procedures for lock-off equipment and signage
tools, techniques and equipment to be used to prove electrical isolation
procedures for proving and removing electrical isolation
procedures for labelling conductors and recording conductor layout
tools, techniques and equipment to be used to disconnect conductors
procedures for disconnecting conductors
procedures for terminating disconnected cables/connections
characteristics of the circuit and the equipment
tools, techniques and equipment to be used to terminate conductors and check connections
procedures for terminating conductors and checking connections
specifications for the connections to be made
tools, techniques and equipment to be used to connect the conductors to the equipment
procedures for connecting conductors to equipment
tools, techniques and equipment to be used to fasten and seal the cables, wires and conduits
procedures for fastening and sealing cables, wires and conduits
operational specifications of the fixed wired equipment
tools, techniques and equipment to be used to check and test the compliance of the equipment with specifications
procedures for checking the operation of the equipment and circuits
potential dangers
recognised procedures for the movement and treatment of the injured person
appropriate local medical and rescue services
procedures for recording first aid
Replaces
| State Code | National Code | Title | Type |
|---|---|---|---|
| M0457 | MEM18.49AA | Disconnect/reconnect fixed wired equipment (which use up to 1000vAC/1500vDC) | Unit of competency |
Replaced By
| State Code | National Code | Title | Type |
|---|---|---|---|
| WA653 | MEM18049C | Disconnect/reconnect fixed wired equipment up to 1000 volts a.c./1500 volts d.c. | Unit of competency |
| State Code | National Code | Title | Type |
|---|---|---|---|
| W726 | LMT31909 | Certificate III in Engineering - TCF Mechanic | Qualification |