LVCM

• Prepared by

• Address
  Address

• Meter Number

• Prepared by

• Conducted

  Date

• Is prestart scoping required? ie. Confirm site access, Check Phase Rotation

  Yes

  No

• Is installation 3 phase

  Yes

  No

Record Phase Rotation RWB (L to R)

• Recorded at Main Switch

  Clockwise

  Anti-Clockwise

  N/A

• Recorded at MIL

  Clockwise

  Anti-Clockwise

  N/A

• Take photo of Switches as found

  Media

• Take photo of Switches as found

  Media

• Proceed to next page

• Are you ONLY Isolating a Service?

  Yes

• Proceed to LVCM 13.A - Isolation of an Installation

• Are you ONLY Installing a Service and NOT connecting to the Consumer Mains?

  Yes

• Proceed to LVCM 13.B - Testing of an OH Service / Dedicated UG Service Cable

• Are you Replace an Existing OH Service?

  Yes

• Proceed to Replace an Existing OH Service

• Isolation of an Installation

• Refer to LVCM 13.A

LVCM 13.A: Isolation of an Installation

Step 1: Record Phase Rotation RWB (L to R / T to B)

• Recorded at Main Switch

  Clockwise

  Anti-Clockwise

  N/A

• Recorded at MIL

  Clockwise

  Anti-Clockwise

  N/A

Step 2: Advise

• Advise customer supply will be interrupted

Step 3: At customers Main Switchboard

• Record position of all Main Switches, CB’s and fuses

  Media

• Turn off all Main Switches and CB’s

  Media

Step 4: At LV Mains

• Remove all service fuses

Step 5: At the Main Switchboard

• Using a proximity device Confirm Supply is De-energised

• Test Consumer Mains Actives

  No Indication

• Test Consumer Mains Neutral

  No Indication

Step 6: Disconnect/Isolate Installation from LV Network

• ie: Remove OH Service and Hardware / Discoonect UG Consumer Mains from LV Pillar and Secure

• Install Service - Left Disconnected at Point of Supply

• Refer to LVCM 13.B

LVCM 13.B: Testing an OH Service / Dedicated UG Service Cable

Step 1: Install the Service and Secure

• DO NOT CONNECT TO NETWORK

Step 2: At the LV Mains

• Check System Normal

• Single Phase

  Yes

  No

• Test between LV Mains Neutral and LV Mains Active

  ~230 V

• Test between Independent Earth and LV Mains Active

  ~230 V

• Test between Independent Earth and LV Mains Neutral

  =< 6 V

• Test between Independent Earth and LV Mains Active

  ~230 V

• Multi Phase

  Yes

  No

• Test between LV Mains Neutral and each LV Mains Active

  ~230 V

• Test between Phases A-B, B-C, C-A

  ~400V

Step 3: Connect Service to LV Mains

• In accordance with construction standards

Step 4: At LV Mains

• Visually Confirm all Service Actives are fused, and

• That the Service Neutral is connected directly to the LV Mains Neutral

Step 5: At the LV Mains

• Insert Fuses

Step 6: At Service Tails Customers End

• Prove Correct Connections

• Single Phase

  Yes

  No

• Using Voltmeter, Test between the Service Neutral and the Service Active

  ~230 V

• Using Proximity Tester, Test Service Active

  Indication

• Using Proximity Tester, Test Service Neutral

  No Indication

• Using Proximity Tester, Test Neutral Bond Tail

  No Indication

• Multiphase

  Yes

  No

• Using Voltmeter, Test between Service Neutral and each Service Active

  ~230 V

• Using Voltmeter, Test between Phases A-B, B-C, C-A

  ~400V

• Using Proximity Device

  No Indication

Step 7: At the LV Mains

• Remove Service Fuses

Step 8: At Service Tails Customers End

• Using a Proximity Device, Confirm the Service Neutral is NOT fused or Energised and Actives are NOT Energised

• Test Service Active/s

  No Indication

• Test Service Neutral

  No Indication

• Test Neutral Bond Tail

  No Indication

Step 9: At Service Tails Customers End

• Secure Service Tails

Step 1: At the Main Switchboard Record Phase Rotation

• Is Installation Three Phase

  Yes

  No

• Recorded at Main Switch (L to R / T to B)

  Clockwise

  Anti-Clockwise

• Recorded at MIL (L to R / T to B)

  Clockwise

  Anti-Clockwise

• Move to Step 2

Step 2: Advise the Customer that Supply will be Interrupted

Step 3: At the Main Switchboard

• Record position of all Main Switches, CB’s and fuses

  Media

• Turn off all Main Switches and CB’s

  Media

Step 4: At the LV Mains

• Remove all Service Fuses

Step 5: At the Main Switchboard

• Using a Proximity Device, Confirm Supply has been De-Energised

  No Indication

• MEN / Main Neutral as found

  Media

Step 6: At the Main Switchboard

• Remove the MEN Connection and the Main Neutral/s from the Main Neutral Link and Secure

• MEN / Main Neutral removed

  Media

• Place coloured cable ties in the removed conductors Neutral Link Terminals i.e. Black Main Neutral, Green MEN

Step 7: At the Main Switchboard

• Using a Multimeter on Ohms setting, Perform Continuity Test to confirm all Main Switches are OPEN

• Test between LINE side of Main Switch and Neutral Link/s

  Infinity (OL)

Step 8: For a Service

• Ensure that any Neutral Bonding Conductor is DISCONNECTED from metallic parts and secured

• Install the Service and Connect to the Consumer Mains

Step 9: CONFIRM THE SWITCHBOARD IS PREPARED FOR CONNECTION and TESTING AT THE SWITCHBOARD IS IMMINENT

Step 10: At the LV Mains

• Check System Normal

• Single Phase

  Yes

  No

• Test between LV Mains Neutral and LV Mains Active

  ~230 V

• Test between Independent Earth and LV Mains Active

  ~230 V

• Test between Independent Earth and LV Mains Neutral

  =< 6 V

• Test between Independent Earth and LV Mains Active

  ~230 V

• Three Phase

  Yes

  No

• Test between LV Mains Neutral and each LV Mains Active

  ~230 V

• Test between Phases A-B, B-C, C-A

  ~400V

Step 11: Connect Service / Consumer Mains to the LV Network

• Visually Confirm all Service / Consumer Mains Actives are fused, and

• That the Service / Consumer Mains Neutral is connected directly to the LV Mains Neutral

Step 12: At the LV Mains

• Insert Service Fuses

Step 13: At the Main Switchboard

• Prove Connections

• Single Phase

  Yes

  No

• Test between the Main Neutral and Line Terminal of the Main Switch

  ~230 V

• Test between Independent Earth and the Line Terminal of the Main Switch

  ~230 V

• Test between Independent Earth and the Main Neutral

  =< 6 V

• Test between Independent Earth and the Customer's MEN

  approx. 0 V

• Test between Independent Earth and the Line Terminal of the Main Switch

  ~230 V

• Three Phase

  Yes

  No

• Test between the Main Neutral and Line Terminal of the Main Switch

  ~230 V

• Test between Independent Earth and the Line Terminal of the Main Switch

  ~230 V

• Test between Independent Earth and the Main Neutral

  =< 6 V

• Test between Independent Earth and the Customer's MEN

  approx. 0 V

• Test between Independent Earth and the Line Terminal of the Main Switch

  ~230 V

• Test between Phases A-B, B-C, C-A

  ~400V

Step 14: At the Main Switchboard

• Perform Neutral Integrity Test (NIT) <=1

Step 15: At the Main Switchboard

• Reconnect the Main Neutral and then the MEN to the Main Neutral Link

Step 16: At the Main Switchboard

• Perform MEN Integrity Test - Test between an Earthed component and the Line Terminal of the Main Switch <=NIT

• Take photo of Main Neutral Link

  Media

Step 17: At the Main Switchboard

• If applicable, Check Phase Rotation is correct previously recorded in Step 1

  Clockwise

  Anti-Clockwise

Step 18: Neutral Bond

• Test to ensure that the disconnected bonding conductor is NOT connected to the Service Active

• Using a Proximity Device, Test Neutral Bond Tail

  No Indication

• Using a Proximity Device, Test Service Attachment Point

  No Indication

• Connect the Bond to the Service Attachment Point

• Using a Proximity Device, Test Bonded Metalwork

  No Indication

• Bonding Completed by

Step 19: At the Main Switchboard

• Return all Main Switches / Circuit Breakers to the position noted prior to work being carried out

Step 20: At the Main Switchboard

• Conduct Final Test and visually confirm that the Main Neutral and NEM are connected to the Main Neutral Link

• Test Main Neutral Link ant the MEN connection

  No Indication

• Take photo of Secured Switchboard

  Media

• Clockwise

  Anti-Clockwise