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Evidence Guide: MEM18105 - Disconnect and reconnect high voltage fixed wired equipment

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MEM18105 - Disconnect and reconnect high voltage fixed wired equipment

What evidence can you provide to prove your understanding of each of the following citeria?

Determine job requirements

  1. Follow standard operating procedures (SOPs)
  2. Comply with work health and safety (WHS) requirements at all times, including appropriate risk control measures
  3. Use appropriate personal protective equipment (PPE) in accordance with SOPs
  4. Identify job requirements from specifications, drawings, job sheets or work instructions
Follow standard operating procedures (SOPs)

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Comply with work health and safety (WHS) requirements at all times, including appropriate risk control measures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Use appropriate personal protective equipment (PPE) in accordance with SOPs

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify job requirements from specifications, drawings, job sheets or work instructions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Disconnect equipment

  1. Determine function of electrical of equipment by reference to circuit drawings, schematics, reference manuals, equipment specifications, identification plate and/or consultation with technical adviser
  2. Determine and record equipment characteristics, including direction of rotation, where appropriate
  3. Identify points of isolation and isolate equipment in accordance with procedures
  4. Check that circuits/equipment are isolated and tagged using all appropriate lock-off equipment and signage
  5. Note, record and label conductor layout
  6. Disconnect conductors and terminate and make safe disconnected cables/connections using appropriate tools, equipment and techniques
Determine function of electrical of equipment by reference to circuit drawings, schematics, reference manuals, equipment specifications, identification plate and/or consultation with technical adviser

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine and record equipment characteristics, including direction of rotation, where appropriate

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify points of isolation and isolate equipment in accordance with procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Check that circuits/equipment are isolated and tagged using all appropriate lock-off equipment and signage

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Note, record and label conductor layout

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Disconnect conductors and terminate and make safe disconnected cables/connections using appropriate tools, equipment and techniques

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare to reconnect equipment

  1. Plan reconnection ensuring WHS policies and procedures are followed
  2. Identify characteristics, including rating of the equipment to be connected, and determine connection requirements
  3. Test original and/or replacement item to ensure it is safe to be connected
Plan reconnection ensuring WHS policies and procedures are followed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify characteristics, including rating of the equipment to be connected, and determine connection requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Test original and/or replacement item to ensure it is safe to be connected

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Connect equipment

  1. Isolate and tag circuits and equipment in accordance with procedures
  2. Check connections and prepare conductors for termination
  3. Test the conductors for continuity and insulation resistance readings ensuring they comply with regulatory and legislative requirements
  4. Confirm continuity between exposed conductive parts of the equipment and the main earth or metal switchboard enclosure
  5. Connect conductors to equipment in accordance with specifications and regulatory requirements
  6. Fasten/seal all cables/wires/conduit to specifications
  7. Remove all lock-off equipment and signage
Isolate and tag circuits and equipment in accordance with procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Check connections and prepare conductors for termination

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Test the conductors for continuity and insulation resistance readings ensuring they comply with regulatory and legislative requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Confirm continuity between exposed conductive parts of the equipment and the main earth or metal switchboard enclosure

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Connect conductors to equipment in accordance with specifications and regulatory requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Fasten/seal all cables/wires/conduit to specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Remove all lock-off equipment and signage

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Perform emergency first aid

  1. Assess situation to identify points of danger to the injured person and potential rescuer
  2. Rescue/recover injured person or provide assistance to injured person in accordance with recognised standards/procedures
  3. Make contact with the appropriate medical and rescue authorities
  4. Record details of first aid given
Assess situation to identify points of danger to the injured person and potential rescuer

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Rescue/recover injured person or provide assistance to injured person in accordance with recognised standards/procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Make contact with the appropriate medical and rescue authorities

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Record details of first aid given

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1.

Determine job requirements

1.1.

Follow standard operating procedures (SOPs)

1.2.

Comply with work health and safety (WHS) requirements at all times, including appropriate risk control measures

1.3.

Use appropriate personal protective equipment (PPE) in accordance with SOPs

1.4.

Identify job requirements from specifications, drawings, job sheets or work instructions

2.

Disconnect equipment

2.1.

Determine function of electrical of equipment by reference to circuit drawings, schematics, reference manuals, equipment specifications, identification plate and/or consultation with technical adviser

2.2.

Determine and record equipment characteristics, including direction of rotation, where appropriate

2.3.

Identify points of isolation and isolate equipment in accordance with procedures

2.4.

Check that circuits/equipment are isolated and tagged using all appropriate lock-off equipment and signage

2.5.

Note, record and label conductor layout

2.6.

Disconnect conductors and terminate and make safe disconnected cables/connections using appropriate tools, equipment and techniques

3.

Prepare to reconnect equipment

3.1.

Plan reconnection ensuring WHS policies and procedures are followed

3.2.

Identify characteristics, including rating of the equipment to be connected, and determine connection requirements

3.3.

Test original and/or replacement item to ensure it is safe to be connected

4.

Connect equipment

4.1.

Isolate and tag circuits and equipment in accordance with procedures

4.2.

Check connections and prepare conductors for termination

4.3.

Test the conductors for continuity and insulation resistance readings ensuring they comply with regulatory and legislative requirements

4.4.

Confirm continuity between exposed conductive parts of the equipment and the main earth or metal switchboard enclosure

4.5.

Connect conductors to equipment in accordance with specifications and regulatory requirements

4.6.

Fasten/seal all cables/wires/conduit to specifications

4.7.

Remove all lock-off equipment and signage

5.

Perform emergency first aid

5.1.

Assess situation to identify points of danger to the injured person and potential rescuer

5.2.

Rescue/recover injured person or provide assistance to injured person in accordance with recognised standards/procedures

5.3.

Make contact with the appropriate medical and rescue authorities

5.4.

Record details of first aid given

Required Skills and Knowledge

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1.

Determine job requirements

1.1.

Follow standard operating procedures (SOPs)

1.2.

Comply with work health and safety (WHS) requirements at all times, including appropriate risk control measures

1.3.

Use appropriate personal protective equipment (PPE) in accordance with SOPs

1.4.

Identify job requirements from specifications, drawings, job sheets or work instructions

2.

Disconnect equipment

2.1.

Determine function of electrical of equipment by reference to circuit drawings, schematics, reference manuals, equipment specifications, identification plate and/or consultation with technical adviser

2.2.

Determine and record equipment characteristics, including direction of rotation, where appropriate

2.3.

Identify points of isolation and isolate equipment in accordance with procedures

2.4.

Check that circuits/equipment are isolated and tagged using all appropriate lock-off equipment and signage

2.5.

Note, record and label conductor layout

2.6.

Disconnect conductors and terminate and make safe disconnected cables/connections using appropriate tools, equipment and techniques

3.

Prepare to reconnect equipment

3.1.

Plan reconnection ensuring WHS policies and procedures are followed

3.2.

Identify characteristics, including rating of the equipment to be connected, and determine connection requirements

3.3.

Test original and/or replacement item to ensure it is safe to be connected

4.

Connect equipment

4.1.

Isolate and tag circuits and equipment in accordance with procedures

4.2.

Check connections and prepare conductors for termination

4.3.

Test the conductors for continuity and insulation resistance readings ensuring they comply with regulatory and legislative requirements

4.4.

Confirm continuity between exposed conductive parts of the equipment and the main earth or metal switchboard enclosure

4.5.

Connect conductors to equipment in accordance with specifications and regulatory requirements

4.6.

Fasten/seal all cables/wires/conduit to specifications

4.7.

Remove all lock-off equipment and signage

5.

Perform emergency first aid

5.1.

Assess situation to identify points of danger to the injured person and potential rescuer

5.2.

Rescue/recover injured person or provide assistance to injured person in accordance with recognised standards/procedures

5.3.

Make contact with the appropriate medical and rescue authorities

5.4.

Record details of first aid given

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria on at least two occasions and include:

following work instructions, SOPs and safe work practices

identifying and interpreting specifications, charts, lists, circuit drawings, schematics, regulatory and legislative requirements to disconnect/reconnect HV fixed wired equipment

checking that the electrical equipment is isolated and tagged where necessary in strict accordance with WHS requirements and procedures using appropriate lock-off equipment and tags/signs

disconnecting equipment by labelling and recording conductors and making safe disconnected cables/connections using appropriate tools, test equipment, procedures and techniques

confirming isolation prior to reconnecting fixed wired equipment and checking connections and preparing conductors for termination in accordance with manufacturer specifications and regulatory requirements

testing conductors prior to connection to ensure continuity, and insulation resistance readings comply with following requirements:

checking continuity of the protective earth conductor to determine whether it is sufficiently low

testing the resistance between the protective earth conductor and the neutral conductor to determine whether it is sufficiently low – not greater than 2 Ohms

testing the insulation resistance of active conductors to confirm that it is greater than 1 Megohm

testing to ensure continuity is confirmed between the exposed conductive parts of the equipment and the main earth or metal switchboard enclosure

connecting conductors to equipment and fasten/seal cables/wires/conduits using appropriate procedures and tools to relevant specifications and regulatory requirements

removing all lock-off devices and signage and checking/testing equipment and circuits for compliance to specifications

rescuing/recovering of injured person in accordance with appropriate standards/procedures and provide first aid, including cardiopulmonary resuscitation (CPR) where appropriate, and contacting the appropriate medical and rescue authorities

recording details of first aid given.

Evidence required to demonstrate the required knowledge for this unit must be relevant to and satisfy the requirements of the elements and performance criteria and include knowledge of:

safe work practices and procedures and use of PPE

any applicable industry standards, national/Australian Standards, NOHSC guides, state/territory regulatory codes of practice/standards and relevant regulatory requirements

characteristics of the circuit and the equipment, including rating and rotation

points of isolation for the fixed wired equipment and reasons for selecting the particular isolation point) and reasons for using earthing, lock-off equipment and signs

clearances from live parts

safe isolation

operational specifications of the fixed wired equipment and connections to be made

procedures for confirming electrical isolation of fixed wired equipment and circuits

procedures, techniques, tools and equipment to be used for disconnecting/reconnecting conductors

test requirements to ensure compliant continuity and insulation resistance of conductors

test requirements to ensure continuity between exposed conductive parts of the equipment and the main earth or metal switchboard enclosure

potential dangers/risks associated with work

recognised procedures for the movement and treatment of the injured person, including HV rescue, clearing of airways, CPR, care of spinal injuries, treatment of cuts/lesions, burns/scalds and treatment of shock

appropriate local medical and rescue services

procedures for incident reporting.

Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Appropriate techniques and procedures include:

Clearances for safe approach as mandated by statutory authorities

Isolation includes:

Isolating supply for safe disconnection of all electrical power to equipment supply circuit with switch circuit breaker or fuses on circuits/equipment at voltage levels above 1000 V alternating current (AC) and 1500 V direct current (DC)

Test equipment and tools includes one or more of the following:

In accordance with voltage and fault-limiting requirements:

appropriate proving dead meters

high potential testers

voltmeters

insulation resistance testers

handheld tools, including pliers, screwdrivers, sockets, spanners, keys, earthing links and operating sticks

Signage includes one or more of the following:

tags

access permit holders

restricted access signs