Unit of competency Outline

Date retreived
22/07/2026 2:32 AM AWST

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Disconnect and reconnect fixed wired electrical equipment connected to a Low Voltage supply

Disconnect and reconnect fixed wired electrical equipment connected to a Low Voltage supply

Unit of competency
National Code
UEENEEP001B
State Code
W8226
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
29/07/2011
View on TGA
State Implementation and Classification
Approved Date
11/02/2011
Field of Education
031313 - Electrical Fitting, Electrical Mechanics
Original Release Date
11/02/2011
Nominal Hours
72
Description
1) 1.1) DescriptorThis unit covers disconnecting and reconnecting fixed wired electrical equipment. This may be incidental to or a primary and regular function of work related to a principle work function. It encompasses working safely, identifying supply arrangements, following isolation procedures, selecting and using testing and measuring devices, terminating and connecting cables and conductors, safely testing and reporting and excludes disconnecting or reconnecting circuits at a switchboard or to general electrical accessories (including switches, socket outlets, circuit protective devices etc); or installation of or alteration to any part of the fixed electrical wiring system (defined as electrical installing work).
Notes
Elements and Performance Criteria
1 Prepare to disconnect electrical equipment.
  • 1.1 Disconnection is planned to ensure OHS policies and procedures are followed.
  • 1.2 Appropriate persons are consulted to ensure work is coordinated effectively with others involved in the work site.
  • 1.3 Safety hazards which have not previously been electrical characteristics of electrical equipment and electrical supply are determined and recorded in accordance with established procedures.
  • 1.4 The point of isolation of electrical equipment to be disconnected is determined.
  • 1.5 Tools, equipment and testing devices needed to carry out the work are obtained in accordance with established procedures and checked for correct operation and safety.
2 Disconnect electrical equipment.
  • 2.1 OHS policies and procedures are followed.
  • 2.2 Electrical equipment is isolated in accordance with AS/NZS 4836:2001 and established procedures (see Range Statement).
  • 2.3 Conductor connection sequence is recorded and labelled in accordance with established procedures.
  • 2.4 Visual checks of the electrical equipment and associated wiring are carried out in accordance with established procedures to detect any abnormal or obvious damage or fault.
  • 2.5 Isolated equipment is confirmed as de-energised.
  • 2.6 Electrical equipment is disconnected from fixed wiring without damage to other components.
  • 2.7 Approval is obtained in accordance with established procedures from appropriate personnel, before any contingencies are implemented.
  • 2.8 Disconnected conductors/cables are terminated in accordance with requirements to ensure they are safe and present no potential hazard.
3 Prepare to reconnect electrical equipment.
  • 3.1 Reconnection is planned to ensure OHS policies and procedures are followed.
  • 3.2 Appropriate personnel are consulted to ensure work is coordinated effectively with others involved in the work site.
  • 3.3 The point of isolation of the circuit to which the electrical equipment is to be connected is determined.
  • 3.4 Replacement electrical equipment is selected on the basis of rating and characteristics being the same as that of the original electrical equipment.
  • 3.5 Appropriate personnel are consulted in the event that replacement electrical equipment is not available.
  • 3.6 Original and/or replacement electrical equipment is tested to ensure it is safe to connect to the electrical supply and use.
  • 3.7 Tools, equipment and testing devices needed to carry out the work are obtained in accordance with established procedures and checked for correct operation and safety.
4 Reconnect electrical equipment.
  • 4.1 OHS policies and procedures are followed.
  • 4.2 Measures are taken to ensure circuit to which electrical equipment is to be connected remains isolated and de-energised in accordance with AS/NZS 4836:2001.
  • 4.3 The continuity of the protective earthing conductor is tested to determine whether it is sufficiently low.
  • 4.4 The resistance between the protective earthing conductor and the neutral conductor is tested to determine whether it is sufficiently low, i.e. not greater than 2 Ohms.
  • 4.5 The insulation resistance of active conductors is tested to confirm that it is greater than 1 Megohm.
  • 4.6 An appropriate qualified person is engaged to rectify any non-compliance condition revealed by the testing under item 4.3 to 4.5.
  • 4.7 Continuity between exposed conductive parts of the equipment and the main earth or metal switchboard enclosure is confirmed.
  • 4.8 Electrical equipment is connected to comply with requirements.
  • 4.9 Connections to the equipment are checked to confirm they are correct.
5 Test the reconnected electrical equipment for safe operation.
  • 5.1 OHS policies and procedures, and established procedures for the reinstatement of isolated circuits and electrical equipment are followed.
  • 5.2 Arrangements are made with appropriate personnel to test the operation of the electrical equipment in accordance with established procedures.
  • 5.3 Operational non-conformances are identified and reported in accordance with established procedures.
6 Identify and report faults
  • 6.1 Electrical equipment is isolated in accordance with established procedures.
  • 6.2 Other OHS policies and procedures are followed.
  • 6.3 Visual checks of the equipment to be disconnected and/or reconnected are carried out in accordance with established procedures to detect any abnormal or obvious damage or fault.
  • 6.4 Fault(s) at point of disconnection and/or reconnection are identified and reported in accordance with established procedures.
  • 6.5 Approval is obtained in accordance with established procedures from appropriate personnel, before any contingencies are implemented.
7 Provide status report(s).
  • 7.1 Status report(s) are completed and notified in accordance with established procedures.
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