Oz wiring standards (a couple of pics for you)
May 31st 2008, 9:24 am
#46
youngy73
Joined: Mar 2005
Location: kewarra beach, cairns
Posts: 940
Re: Oz wiring standards (a couple of pics for you)
Im back with another pic for you! This was the domestic switchboard on a house i was working on today! Took a long while to get me head round what was what! Great fire protection where the cables go into the house and check out the connectors! God i love working here! Every day is a fresh challenge
:curse:
:curse:
Jun 8th 2008, 12:10 am
#48
BE Enthusiast
Joined: Feb 2006
Location: Melbourne
Posts: 980
Disconnect & reconnect
For people doing the Disconnect & Reconnect in Victoria on the day of the exam this is the type of silly procedure they are looking at.
Here goes Friends.
Procedure for disconnection of Electrical Appliance
1 Notify all relevant persons of the intended work to be carried out
: Maintenance Staff.
2 Check with the company you are working for any required
: Permits to Work, and Relevant paper work .for disconnection of appliance & reconnect of appliance from relevant staff.
: Check the estimated time of disconnection of equipment.
3 Check with maintenance staff to ensure NO Essential Services shall be affected. (Example) Fire Pumps, Emergency Lifts, Smoke and Emergency Lighting+ Fire Fighting Equipment.
4
5 Check for disruption of 3 phase loading (NO Single Phasing of Equipment)
Single phasing = disconnection of 1 phase increases loading on apparatus.
5 Trace circuit to be disconnected to the Isolation Point.
: Isolated = Completely Disconnected.
: Isolated and Earthed = Circuit is Dead and cables connected together.
: Trace circuit back to isolation point.
6 Identify any Isolation devices.
(Example) Fuses, Circuit Breakers, Switches, Switchboards.
Procedure for Start of Test
7 : Calibrate all test equipment.
: From a good known Earth reference point test the Voltmeter.
: Test for any LIVE Equipment.
: The testing device records results that may operate the Protective devices.
: From the Earth reference point provided check all steelwork on the apparatus under test and scrape away “Paintwork” Using the Volt meter provided check for ZERO Volts on the Meter.
: Always test Volt Meter provided before and After all testing.
: Do not forget to use the Earth Reference Point Provided by the Examining Body.
8 Tag all Areas of intended disconnection.
: When the appliance you are working on is Disconnected Tag all cables.
: Tag off switchboard in a SAFE Position.
: Locate correct fuses or circuit breaker & remove fuses from the fuse carrier and
: Tag fuse carrier
: Record your name and contact details on relevant Tag.
: Record relevant department information, (date, time) company you have been employed by onto Tag of disconnection.
: All Tagged equipment must be signed by the qualified person performing the disconnection of the apparatus.
: Replace “Empty” fuse carriers into switchboard line.
9 Actual Disconnection of Apparatus. If this is a motor
10
: Switch on apparatus and record D.O.R. (Direction of Rotation)
: Move the switch to the on position and check rotation of motor shaft.
: Record all information of Name Plate provided.
: Remove Fuses 1 at a time and test for Live Voltage on contacts at point of disconnection (Joint Box) at Appliance.
9 (a) : Test between all combinations for LIVE Voltage using the Volt Meter.
: Test Actives to Earth.
: Test Actives to Neutral.
: Test all combinations of L1, L2, L3. if Three Phase.
: Test Neutral and Earth.
Record all Test Results.
(Note) : Before removal of fuses from switchboard (Procedure)
1 : Ensure correct safety clothing is worn.
2 : Visually inspect the area you intent to isolate.
3 : Visually inspect protective devices (Fuses, Fuse Carriers, circuit breakers)
4 : With arm straight one hand in pocket (For safety)
6 : Look away while extracting fuse from switchboard.
:Always Act in a Safe Manner.
7 : Before any disconnection Always test for Live Voltages.
: After disconnection of apparatus test all cables with Voltage Meter.
9 (b): Remove 1 fuse at a time from switchboard.
: Remove fuse from fuse carrier and place fuse in a secure location (pocket).
: Replace Blank fuse carrier into switchboard line.
: Record Fuse type and current rating of fuse on information card provided.
By Examining Board (Examiner).
(Note) DO Not at any time leave ANY Fuses or Elements in or at the fuse board
9 (c) : Testing at apparatus (Motor).
: After disconnection of cables test with Volt Meter.(Record any results).
: The Earth is the 1st system of protection for you.
: 1st test all Active conductors.
: 2nd test neutral conductor.
: Test Earth conductor last.
: Make a sketch of any connections L1 L2 L3 and any colour coding of active conductors if cables are all the same colour at the motor then use identifying tape to distinguish L1 L2 L3.
: Record if motor winding are wired in Star or Delta on nameplate.
: Tape all cables with insulation tape each cable must have a minimum of 4 wraps of insulation tape completely covering all exposed conductors.
: For mechanical protection insert cables from motor into a Joint Box and tie back to protect.
11 : Enquire at all times to confirm if apparatus is to be disconnected and re connected.
12 : Enquire if you are required to submit a SAFETY CERTIFICATE.
Reconnection of Electrical Apparatus
1 : Notify all relevant persons of the intended work to be carried out
: Maintenance Staff.
2 : Visual inspection that Tags are in place at
: ( a ) : Isolation point (Joint Box). At Appliance
: ( b ) : Contactor.
: ( c ): Switchboard.
3 : Visual check of fuses, circuit breakers have NOT been replaced by others.
4 : Remove Joint Box and insulation tape, Earth 1st. (Essential)
: Test for a good known Earth connection using the Volt Meter.
: Test for Live between Earth and all LIVE Conductors.
: Test Volt Meter for (Live or Active) reading using a good known power source.
(This test is to confirm correct functioning of Volt Meter).
“Before any connections of cables always check and test the Meter you intend to use. (This may save your LIFE).
(a) : Using a Insulation Resistance and Continuity Tester set the meter to the Ohm scale and calibrate by connecting both leads together. Record results.
(b) : Using the Resistance meter test between Earth and all parts of the apparatus under test Maximum reading not to Exceed 0.1 Ohm. Dependant on which state your in. Record all test readings.
(c) Test Rotating parts of motor (motor shaft) this reading NOT to exceed
1.ohm Resistance Maximum.
You must inform the “examiner”
This test does not conform to the required standard and has FAILED. The resistance reading recorded on the rotating parts of the apparatus under test exceed the maximum permissible value of 0.1 Ohm. (Deepnding of State’s)
5 : Insulation Resistance Test at 500V Range setting on the Meter
: Calibrate your meter before commencing any test (set meter to zero)
The test must obtain a minimum reading of 1M/Ohm or a reading on the meter scale of Infinity.
: 1st connect the Earth lead of the test meter to the Earth conductor then connect the other test lead to each Active in turn, Record all meter readings.
6 : Check your motor schematic drawing for correct cable connection sequence then replace cables onto motor post L1 L2 L3 and tighten nuts.
7 Notify all relevant persons regarding Re Energizing Apparatus
: Maintenance Staff.
8 : Replace all protective devices, Fuses, Circuit Breakers, in the Exact same order they were initially removed.
Sequence of Re-Inserting Protective Devices.
9( a ): Looking away from the switchboard, distribution board, insert the protective device into the Live connection.
9( b ): Lock switchboard or distribution board.
9( c ): When safe switch on the apparatus.
9( d ): Check for correct rotation of motor shaft.
9( e ): Run apparatus for a given period of time for effective functioning of apparatus.
9( f ): Complete relevant safety certification.
9( g ): The person who completes the Safety Certificate has a Maximum of 2 working days by means of electronic communication (Telephone) to lodge the safety certificate to the chief electrical inspectors office.
9) h ): The person who completed the safety certificate has
2 days to register a safety certificate.
4 Days to issue a safety certificate to the customer.
I hope you can all get your heads round all this, i have done this procedure myself hoping to cover all aspects for you all.
Arthur
Here goes Friends.
Procedure for disconnection of Electrical Appliance
1 Notify all relevant persons of the intended work to be carried out
: Maintenance Staff.
2 Check with the company you are working for any required
: Permits to Work, and Relevant paper work .for disconnection of appliance & reconnect of appliance from relevant staff.
: Check the estimated time of disconnection of equipment.
3 Check with maintenance staff to ensure NO Essential Services shall be affected. (Example) Fire Pumps, Emergency Lifts, Smoke and Emergency Lighting+ Fire Fighting Equipment.
4
5 Check for disruption of 3 phase loading (NO Single Phasing of Equipment)
Single phasing = disconnection of 1 phase increases loading on apparatus.
5 Trace circuit to be disconnected to the Isolation Point.
: Isolated = Completely Disconnected.
: Isolated and Earthed = Circuit is Dead and cables connected together.
: Trace circuit back to isolation point.
6 Identify any Isolation devices.
(Example) Fuses, Circuit Breakers, Switches, Switchboards.
Procedure for Start of Test
7 : Calibrate all test equipment.
: From a good known Earth reference point test the Voltmeter.
: Test for any LIVE Equipment.
: The testing device records results that may operate the Protective devices.
: From the Earth reference point provided check all steelwork on the apparatus under test and scrape away “Paintwork” Using the Volt meter provided check for ZERO Volts on the Meter.
: Always test Volt Meter provided before and After all testing.
: Do not forget to use the Earth Reference Point Provided by the Examining Body.
8 Tag all Areas of intended disconnection.
: When the appliance you are working on is Disconnected Tag all cables.
: Tag off switchboard in a SAFE Position.
: Locate correct fuses or circuit breaker & remove fuses from the fuse carrier and
: Tag fuse carrier
: Record your name and contact details on relevant Tag.
: Record relevant department information, (date, time) company you have been employed by onto Tag of disconnection.
: All Tagged equipment must be signed by the qualified person performing the disconnection of the apparatus.
: Replace “Empty” fuse carriers into switchboard line.
9 Actual Disconnection of Apparatus. If this is a motor
10
: Switch on apparatus and record D.O.R. (Direction of Rotation)
: Move the switch to the on position and check rotation of motor shaft.
: Record all information of Name Plate provided.
: Remove Fuses 1 at a time and test for Live Voltage on contacts at point of disconnection (Joint Box) at Appliance.
9 (a) : Test between all combinations for LIVE Voltage using the Volt Meter.
: Test Actives to Earth.
: Test Actives to Neutral.
: Test all combinations of L1, L2, L3. if Three Phase.
: Test Neutral and Earth.
Record all Test Results.
(Note) : Before removal of fuses from switchboard (Procedure)
1 : Ensure correct safety clothing is worn.
2 : Visually inspect the area you intent to isolate.
3 : Visually inspect protective devices (Fuses, Fuse Carriers, circuit breakers)
4 : With arm straight one hand in pocket (For safety)
6 : Look away while extracting fuse from switchboard.
:Always Act in a Safe Manner.
7 : Before any disconnection Always test for Live Voltages.
: After disconnection of apparatus test all cables with Voltage Meter.
9 (b): Remove 1 fuse at a time from switchboard.
: Remove fuse from fuse carrier and place fuse in a secure location (pocket).
: Replace Blank fuse carrier into switchboard line.
: Record Fuse type and current rating of fuse on information card provided.
By Examining Board (Examiner).
(Note) DO Not at any time leave ANY Fuses or Elements in or at the fuse board
9 (c) : Testing at apparatus (Motor).
: After disconnection of cables test with Volt Meter.(Record any results).
: The Earth is the 1st system of protection for you.
: 1st test all Active conductors.
: 2nd test neutral conductor.
: Test Earth conductor last.
: Make a sketch of any connections L1 L2 L3 and any colour coding of active conductors if cables are all the same colour at the motor then use identifying tape to distinguish L1 L2 L3.
: Record if motor winding are wired in Star or Delta on nameplate.
: Tape all cables with insulation tape each cable must have a minimum of 4 wraps of insulation tape completely covering all exposed conductors.
: For mechanical protection insert cables from motor into a Joint Box and tie back to protect.
11 : Enquire at all times to confirm if apparatus is to be disconnected and re connected.
12 : Enquire if you are required to submit a SAFETY CERTIFICATE.
Reconnection of Electrical Apparatus
1 : Notify all relevant persons of the intended work to be carried out
: Maintenance Staff.
2 : Visual inspection that Tags are in place at
: ( a ) : Isolation point (Joint Box). At Appliance
: ( b ) : Contactor.
: ( c ): Switchboard.
3 : Visual check of fuses, circuit breakers have NOT been replaced by others.
4 : Remove Joint Box and insulation tape, Earth 1st. (Essential)
: Test for a good known Earth connection using the Volt Meter.
: Test for Live between Earth and all LIVE Conductors.
: Test Volt Meter for (Live or Active) reading using a good known power source.
(This test is to confirm correct functioning of Volt Meter).
“Before any connections of cables always check and test the Meter you intend to use. (This may save your LIFE).
(a) : Using a Insulation Resistance and Continuity Tester set the meter to the Ohm scale and calibrate by connecting both leads together. Record results.
(b) : Using the Resistance meter test between Earth and all parts of the apparatus under test Maximum reading not to Exceed 0.1 Ohm. Dependant on which state your in. Record all test readings.
(c) Test Rotating parts of motor (motor shaft) this reading NOT to exceed
1.ohm Resistance Maximum.
If The Test FAILS
You must inform the “examiner”
This test does not conform to the required standard and has FAILED. The resistance reading recorded on the rotating parts of the apparatus under test exceed the maximum permissible value of 0.1 Ohm. (Deepnding of State’s)
5 : Insulation Resistance Test at 500V Range setting on the Meter
: Calibrate your meter before commencing any test (set meter to zero)
The test must obtain a minimum reading of 1M/Ohm or a reading on the meter scale of Infinity.
: 1st connect the Earth lead of the test meter to the Earth conductor then connect the other test lead to each Active in turn, Record all meter readings.
6 : Check your motor schematic drawing for correct cable connection sequence then replace cables onto motor post L1 L2 L3 and tighten nuts.
7 Notify all relevant persons regarding Re Energizing Apparatus
: Maintenance Staff.
8 : Replace all protective devices, Fuses, Circuit Breakers, in the Exact same order they were initially removed.
Sequence of Re-Inserting Protective Devices.
9( a ): Looking away from the switchboard, distribution board, insert the protective device into the Live connection.
9( b ): Lock switchboard or distribution board.
9( c ): When safe switch on the apparatus.
9( d ): Check for correct rotation of motor shaft.
9( e ): Run apparatus for a given period of time for effective functioning of apparatus.
9( f ): Complete relevant safety certification.
9( g ): The person who completes the Safety Certificate has a Maximum of 2 working days by means of electronic communication (Telephone) to lodge the safety certificate to the chief electrical inspectors office.
9) h ): The person who completed the safety certificate has
2 days to register a safety certificate.
4 Days to issue a safety certificate to the customer.
I hope you can all get your heads round all this, i have done this procedure myself hoping to cover all aspects for you all.
Arthur
Jun 8th 2008, 12:24 am
#49
Lost in BE Cyberspace
Joined: Nov 2005
Location: at the bottom of a wine glass
Posts: 28,176
Re: Disconnect & reconnect
Hey Arthur, to start a new thread you just need to click on 
at the top. Then post as normal 
at the top. Then post as normal For people doing the Disconnect & Reconnect in Victoria on the day of the exam this is the type of silly procedure they are looking at.
Here goes Friends.
Procedure for disconnection of Electrical Appliance
1 Notify all relevant persons of the intended work to be carried out
: Maintenance Staff.
2 Check with the company you are working for any required
: Permits to Work, and Relevant paper work .for disconnection of appliance & reconnect of appliance from relevant staff.
: Check the estimated time of disconnection of equipment.
3 Check with maintenance staff to ensure NO Essential Services shall be affected. (Example) Fire Pumps, Emergency Lifts, Smoke and Emergency Lighting+ Fire Fighting Equipment.
4
5 Check for disruption of 3 phase loading (NO Single Phasing of Equipment)
Single phasing = disconnection of 1 phase increases loading on apparatus.
5 Trace circuit to be disconnected to the Isolation Point.
: Isolated = Completely Disconnected.
: Isolated and Earthed = Circuit is Dead and cables connected together.
: Trace circuit back to isolation point.
6 Identify any Isolation devices.
(Example) Fuses, Circuit Breakers, Switches, Switchboards.
Procedure for Start of Test
7 : Calibrate all test equipment.
: From a good known Earth reference point test the Voltmeter.
: Test for any LIVE Equipment.
: The testing device records results that may operate the Protective devices.
: From the Earth reference point provided check all steelwork on the apparatus under test and scrape away “Paintwork” Using the Volt meter provided check for ZERO Volts on the Meter.
: Always test Volt Meter provided before and After all testing.
: Do not forget to use the Earth Reference Point Provided by the Examining Body.
8 Tag all Areas of intended disconnection.
: When the appliance you are working on is Disconnected Tag all cables.
: Tag off switchboard in a SAFE Position.
: Locate correct fuses or circuit breaker & remove fuses from the fuse carrier and
: Tag fuse carrier
: Record your name and contact details on relevant Tag.
: Record relevant department information, (date, time) company you have been employed by onto Tag of disconnection.
: All Tagged equipment must be signed by the qualified person performing the disconnection of the apparatus.
: Replace “Empty” fuse carriers into switchboard line.
9 Actual Disconnection of Apparatus. If this is a motor
10
: Switch on apparatus and record D.O.R. (Direction of Rotation)
: Move the switch to the on position and check rotation of motor shaft.
: Record all information of Name Plate provided.
: Remove Fuses 1 at a time and test for Live Voltage on contacts at point of disconnection (Joint Box) at Appliance.
9 (a) : Test between all combinations for LIVE Voltage using the Volt Meter.
: Test Actives to Earth.
: Test Actives to Neutral.
: Test all combinations of L1, L2, L3. if Three Phase.
: Test Neutral and Earth.
Record all Test Results.
(Note) : Before removal of fuses from switchboard (Procedure)
1 : Ensure correct safety clothing is worn.
2 : Visually inspect the area you intent to isolate.
3 : Visually inspect protective devices (Fuses, Fuse Carriers, circuit breakers)
4 : With arm straight one hand in pocket (For safety)
6 : Look away while extracting fuse from switchboard.
:Always Act in a Safe Manner.
7 : Before any disconnection Always test for Live Voltages.
: After disconnection of apparatus test all cables with Voltage Meter.
9 (b): Remove 1 fuse at a time from switchboard.
: Remove fuse from fuse carrier and place fuse in a secure location (pocket).
: Replace Blank fuse carrier into switchboard line.
: Record Fuse type and current rating of fuse on information card provided.
By Examining Board (Examiner).
(Note) DO Not at any time leave ANY Fuses or Elements in or at the fuse board
9 (c) : Testing at apparatus (Motor).
: After disconnection of cables test with Volt Meter.(Record any results).
: The Earth is the 1st system of protection for you.
: 1st test all Active conductors.
: 2nd test neutral conductor.
: Test Earth conductor last.
: Make a sketch of any connections L1 L2 L3 and any colour coding of active conductors if cables are all the same colour at the motor then use identifying tape to distinguish L1 L2 L3.
: Record if motor winding are wired in Star or Delta on nameplate.
: Tape all cables with insulation tape each cable must have a minimum of 4 wraps of insulation tape completely covering all exposed conductors.
: For mechanical protection insert cables from motor into a Joint Box and tie back to protect.
11 : Enquire at all times to confirm if apparatus is to be disconnected and re connected.
12 : Enquire if you are required to submit a SAFETY CERTIFICATE.
Reconnection of Electrical Apparatus
1 : Notify all relevant persons of the intended work to be carried out
: Maintenance Staff.
2 : Visual inspection that Tags are in place at
: ( a ) : Isolation point (Joint Box). At Appliance
: ( b ) : Contactor.
: ( c ): Switchboard.
3 : Visual check of fuses, circuit breakers have NOT been replaced by others.
4 : Remove Joint Box and insulation tape, Earth 1st. (Essential)
: Test for a good known Earth connection using the Volt Meter.
: Test for Live between Earth and all LIVE Conductors.
: Test Volt Meter for (Live or Active) reading using a good known power source.
(This test is to confirm correct functioning of Volt Meter).
“Before any connections of cables always check and test the Meter you intend to use. (This may save your LIFE).
(a) : Using a Insulation Resistance and Continuity Tester set the meter to the Ohm scale and calibrate by connecting both leads together. Record results.
(b) : Using the Resistance meter test between Earth and all parts of the apparatus under test Maximum reading not to Exceed 0.1 Ohm. Dependant on which state your in. Record all test readings.
(c) Test Rotating parts of motor (motor shaft) this reading NOT to exceed
1.ohm Resistance Maximum.
You must inform the “examiner”
This test does not conform to the required standard and has FAILED. The resistance reading recorded on the rotating parts of the apparatus under test exceed the maximum permissible value of 0.1 Ohm. (Deepnding of State’s)
5 : Insulation Resistance Test at 500V Range setting on the Meter
: Calibrate your meter before commencing any test (set meter to zero)
The test must obtain a minimum reading of 1M/Ohm or a reading on the meter scale of Infinity.
: 1st connect the Earth lead of the test meter to the Earth conductor then connect the other test lead to each Active in turn, Record all meter readings.
6 : Check your motor schematic drawing for correct cable connection sequence then replace cables onto motor post L1 L2 L3 and tighten nuts.
7 Notify all relevant persons regarding Re Energizing Apparatus
: Maintenance Staff.
8 : Replace all protective devices, Fuses, Circuit Breakers, in the Exact same order they were initially removed.
Sequence of Re-Inserting Protective Devices.
9( a ): Looking away from the switchboard, distribution board, insert the protective device into the Live connection.
9( b ): Lock switchboard or distribution board.
9( c ): When safe switch on the apparatus.
9( d ): Check for correct rotation of motor shaft.
9( e ): Run apparatus for a given period of time for effective functioning of apparatus.
9( f ): Complete relevant safety certification.
9( g ): The person who completes the Safety Certificate has a Maximum of 2 working days by means of electronic communication (Telephone) to lodge the safety certificate to the chief electrical inspectors office.
9) h ): The person who completed the safety certificate has
2 days to register a safety certificate.
4 Days to issue a safety certificate to the customer.
I hope you can all get your heads round all this, i have done this procedure myself hoping to cover all aspects for you all.
Arthur
Here goes Friends.
Procedure for disconnection of Electrical Appliance
1 Notify all relevant persons of the intended work to be carried out
: Maintenance Staff.
2 Check with the company you are working for any required
: Permits to Work, and Relevant paper work .for disconnection of appliance & reconnect of appliance from relevant staff.
: Check the estimated time of disconnection of equipment.
3 Check with maintenance staff to ensure NO Essential Services shall be affected. (Example) Fire Pumps, Emergency Lifts, Smoke and Emergency Lighting+ Fire Fighting Equipment.
4
5 Check for disruption of 3 phase loading (NO Single Phasing of Equipment)
Single phasing = disconnection of 1 phase increases loading on apparatus.
5 Trace circuit to be disconnected to the Isolation Point.
: Isolated = Completely Disconnected.
: Isolated and Earthed = Circuit is Dead and cables connected together.
: Trace circuit back to isolation point.
6 Identify any Isolation devices.
(Example) Fuses, Circuit Breakers, Switches, Switchboards.
Procedure for Start of Test
7 : Calibrate all test equipment.
: From a good known Earth reference point test the Voltmeter.
: Test for any LIVE Equipment.
: The testing device records results that may operate the Protective devices.
: From the Earth reference point provided check all steelwork on the apparatus under test and scrape away “Paintwork” Using the Volt meter provided check for ZERO Volts on the Meter.
: Always test Volt Meter provided before and After all testing.
: Do not forget to use the Earth Reference Point Provided by the Examining Body.
8 Tag all Areas of intended disconnection.
: When the appliance you are working on is Disconnected Tag all cables.
: Tag off switchboard in a SAFE Position.
: Locate correct fuses or circuit breaker & remove fuses from the fuse carrier and
: Tag fuse carrier
: Record your name and contact details on relevant Tag.
: Record relevant department information, (date, time) company you have been employed by onto Tag of disconnection.
: All Tagged equipment must be signed by the qualified person performing the disconnection of the apparatus.
: Replace “Empty” fuse carriers into switchboard line.
9 Actual Disconnection of Apparatus. If this is a motor
10
: Switch on apparatus and record D.O.R. (Direction of Rotation)
: Move the switch to the on position and check rotation of motor shaft.
: Record all information of Name Plate provided.
: Remove Fuses 1 at a time and test for Live Voltage on contacts at point of disconnection (Joint Box) at Appliance.
9 (a) : Test between all combinations for LIVE Voltage using the Volt Meter.
: Test Actives to Earth.
: Test Actives to Neutral.
: Test all combinations of L1, L2, L3. if Three Phase.
: Test Neutral and Earth.
Record all Test Results.
(Note) : Before removal of fuses from switchboard (Procedure)
1 : Ensure correct safety clothing is worn.
2 : Visually inspect the area you intent to isolate.
3 : Visually inspect protective devices (Fuses, Fuse Carriers, circuit breakers)
4 : With arm straight one hand in pocket (For safety)
6 : Look away while extracting fuse from switchboard.
:Always Act in a Safe Manner.
7 : Before any disconnection Always test for Live Voltages.
: After disconnection of apparatus test all cables with Voltage Meter.
9 (b): Remove 1 fuse at a time from switchboard.
: Remove fuse from fuse carrier and place fuse in a secure location (pocket).
: Replace Blank fuse carrier into switchboard line.
: Record Fuse type and current rating of fuse on information card provided.
By Examining Board (Examiner).
(Note) DO Not at any time leave ANY Fuses or Elements in or at the fuse board
9 (c) : Testing at apparatus (Motor).
: After disconnection of cables test with Volt Meter.(Record any results).
: The Earth is the 1st system of protection for you.
: 1st test all Active conductors.
: 2nd test neutral conductor.
: Test Earth conductor last.
: Make a sketch of any connections L1 L2 L3 and any colour coding of active conductors if cables are all the same colour at the motor then use identifying tape to distinguish L1 L2 L3.
: Record if motor winding are wired in Star or Delta on nameplate.
: Tape all cables with insulation tape each cable must have a minimum of 4 wraps of insulation tape completely covering all exposed conductors.
: For mechanical protection insert cables from motor into a Joint Box and tie back to protect.
11 : Enquire at all times to confirm if apparatus is to be disconnected and re connected.
12 : Enquire if you are required to submit a SAFETY CERTIFICATE.
Reconnection of Electrical Apparatus
1 : Notify all relevant persons of the intended work to be carried out
: Maintenance Staff.
2 : Visual inspection that Tags are in place at
: ( a ) : Isolation point (Joint Box). At Appliance
: ( b ) : Contactor.
: ( c ): Switchboard.
3 : Visual check of fuses, circuit breakers have NOT been replaced by others.
4 : Remove Joint Box and insulation tape, Earth 1st. (Essential)
: Test for a good known Earth connection using the Volt Meter.
: Test for Live between Earth and all LIVE Conductors.
: Test Volt Meter for (Live or Active) reading using a good known power source.
(This test is to confirm correct functioning of Volt Meter).
“Before any connections of cables always check and test the Meter you intend to use. (This may save your LIFE).
(a) : Using a Insulation Resistance and Continuity Tester set the meter to the Ohm scale and calibrate by connecting both leads together. Record results.
(b) : Using the Resistance meter test between Earth and all parts of the apparatus under test Maximum reading not to Exceed 0.1 Ohm. Dependant on which state your in. Record all test readings.
(c) Test Rotating parts of motor (motor shaft) this reading NOT to exceed
1.ohm Resistance Maximum.
If The Test FAILS
You must inform the “examiner”
This test does not conform to the required standard and has FAILED. The resistance reading recorded on the rotating parts of the apparatus under test exceed the maximum permissible value of 0.1 Ohm. (Deepnding of State’s)
5 : Insulation Resistance Test at 500V Range setting on the Meter
: Calibrate your meter before commencing any test (set meter to zero)
The test must obtain a minimum reading of 1M/Ohm or a reading on the meter scale of Infinity.
: 1st connect the Earth lead of the test meter to the Earth conductor then connect the other test lead to each Active in turn, Record all meter readings.
6 : Check your motor schematic drawing for correct cable connection sequence then replace cables onto motor post L1 L2 L3 and tighten nuts.
7 Notify all relevant persons regarding Re Energizing Apparatus
: Maintenance Staff.
8 : Replace all protective devices, Fuses, Circuit Breakers, in the Exact same order they were initially removed.
Sequence of Re-Inserting Protective Devices.
9( a ): Looking away from the switchboard, distribution board, insert the protective device into the Live connection.
9( b ): Lock switchboard or distribution board.
9( c ): When safe switch on the apparatus.
9( d ): Check for correct rotation of motor shaft.
9( e ): Run apparatus for a given period of time for effective functioning of apparatus.
9( f ): Complete relevant safety certification.
9( g ): The person who completes the Safety Certificate has a Maximum of 2 working days by means of electronic communication (Telephone) to lodge the safety certificate to the chief electrical inspectors office.
9) h ): The person who completed the safety certificate has
2 days to register a safety certificate.
4 Days to issue a safety certificate to the customer.
I hope you can all get your heads round all this, i have done this procedure myself hoping to cover all aspects for you all.
Arthur
Jun 8th 2008, 12:27 am
#50
BE Enthusiast
Joined: Feb 2006
Location: Melbourne
Posts: 980
Re: Disconnect & reconnect
Wendy thanks for that i shall try it Now.
Jun 8th 2008, 12:29 am
#51
BE Enthusiast
Joined: Feb 2006
Location: Melbourne
Posts: 980
Re: Oz wiring standards (a couple of pics for you)
wendy i dont have a tag for New Thread
Jun 8th 2008, 12:34 am
#52
BE Enthusiast
Joined: Feb 2006
Location: Melbourne
Posts: 980
Disconnect & Re Connect Appliance in Victoria
Im sorry to post this again im just trying to post from New, i hope this covers the disconnect & reconnect for people
1 Notify all relevant persons of the intended work to be carried out
: Maintenance Staff.
2 Check with the company you are working for any required
: Permits to Work, and Relevant paper work .for disconnection of appliance & reconnect of appliance from relevant staff.
: Check the estimated time of disconnection of equipment.
3 Check with maintenance staff to ensure NO Essential Services shall be affected. (Example) Fire Pumps, Emergency Lifts, Smoke and Emergency Lighting+ Fire Fighting Equipment.
4
5 Check for disruption of 3 phase loading (NO Single Phasing of Equipment)
Single phasing = disconnection of 1 phase increases loading on apparatus.
5 Trace circuit to be disconnected to the Isolation Point.
: Isolated = Completely Disconnected.
: Isolated and Earthed = Circuit is Dead and cables connected together.
: Trace circuit back to isolation point.
6 Identify any Isolation devices.
(Example) Fuses, Circuit Breakers, Switches, Switchboards.
Procedure for Start of Test7 : Calibrate all test equipment.
: From a good known Earth reference point test the Voltmeter.
: Test for any LIVE Equipment.
: The testing device records results that may operate the Protective devices.
: From the Earth reference point provided check all steelwork on the apparatus under test and scrape away “Paintwork” Using the Volt meter provided check for ZERO Volts on the Meter.
: Always test Volt Meter provided before and After all testing.
: Do not forget to use the Earth Reference Point Provided by the Examining Body.
8 Tag all Areas of intended disconnection.
: When the appliance you are working on is Disconnected Tag all cables.
: Tag off switchboard in a SAFE Position.
: Locate correct fuses or circuit breaker & remove fuses from the fuse carrier and
: Tag fuse carrier
: Record your name and contact details on relevant Tag.
: Record relevant department information, (date, time) company you have been employed by onto Tag of disconnection.
: All Tagged equipment must be signed by the qualified person performing the disconnection of the apparatus.
: Replace “Empty” fuse carriers into switchboard line.
9 Actual Disconnection of Apparatus. If this is a motor
10
: Switch on apparatus and record D.O.R. (Direction of Rotation)
: Move the switch to the on position and check rotation of motor shaft.
: Record all information of Name Plate provided.
: Remove Fuses 1 at a time and test for Live Voltage on contacts at point of disconnection (Joint Box) at Appliance.
9 (a) : Test between all combinations for LIVE Voltage using the Volt Meter.
: Test Actives to Earth.
: Test Actives to Neutral.
: Test all combinations of L1, L2, L3. if Three Phase.
: Test Neutral and Earth.
Record all Test Results.
(Note) : Before removal of fuses from switchboard (Procedure)
1 : Ensure correct safety clothing is worn.
2 : Visually inspect the area you intent to isolate.
3 : Visually inspect protective devices (Fuses, Fuse Carriers, circuit breakers)
4 : With arm straight one hand in pocket (For safety)
6 : Look away while extracting fuse from switchboard.
:Always Act in a Safe Manner.
7 : Before any disconnection Always test for Live Voltages.
: After disconnection of apparatus test all cables with Voltage Meter.
9 (b): Remove 1 fuse at a time from switchboard.
: Remove fuse from fuse carrier and place fuse in a secure location (pocket).
: Replace Blank fuse carrier into switchboard line.
: Record Fuse type and current rating of fuse on information card provided.
By Examining Board (Examiner).
(Note) DO Not at any time leave ANY Fuses or Elements in or at the fuse board
9 (c) : Testing at apparatus (Motor).
: After disconnection of cables test with Volt Meter.(Record any results).
: The Earth is the 1st system of protection for you.
: 1st test all Active conductors.
: 2nd test neutral conductor.
: Test Earth conductor last.
: Make a sketch of any connections L1 L2 L3 and any colour coding of active conductors if cables are all the same colour at the motor then use identifying tape to distinguish L1 L2 L3.
: Record if motor winding are wired in Star or Delta on nameplate.
: Tape all cables with insulation tape each cable must have a minimum of 4 wraps of insulation tape completely covering all exposed conductors.
: For mechanical protection insert cables from motor into a Joint Box and tie back to protect.
11 : Enquire at all times to confirm if apparatus is to be disconnected and re connected.
12 : Enquire if you are required to submit a SAFETY CERTIFICATE.
1 : Notify all relevant persons of the intended work to be carried out
: Maintenance Staff.
2 : Visual inspection that Tags are in place at
: ( a ) : Isolation point (Joint Box). At Appliance
: ( b ) : Contactor.
: ( c ): Switchboard.
3 : Visual check of fuses, circuit breakers have NOT been replaced by others.
4 : Remove Joint Box and insulation tape, Earth 1st. (Essential)
: Test for a good known Earth connection using the Volt Meter.
: Test for Live between Earth and all LIVE Conductors.
: Test Volt Meter for (Live or Active) reading using a good known power source.
(This test is to confirm correct functioning of Volt Meter).
“Before any connections of cables always check and test the Meter you intend to use. (This may save your LIFE).
(a) : Using a Insulation Resistance and Continuity Tester set the meter to the Ohm scale and calibrate by connecting both leads together. Record results.
(b) : Using the Resistance meter test between Earth and all parts of the apparatus under test Maximum reading not to Exceed 0.1 Ohm. Dependant on which state your in. Record all test readings.
(c) Test Rotating parts of motor (motor shaft) this reading NOT to exceed
1.ohm Resistance Maximum.
You must inform the “examiner”
This test does not conform to the required standard and has FAILED. The resistance reading recorded on the rotating parts of the apparatus under test exceed the maximum permissible value of 0.1 Ohm. (Depnding of State’s)
5 : Insulation Resistance Test at 500V Range setting on the Meter
: Calibrate your meter before commencing any test (set meter to zero)
The test must obtain a minimum reading of 1M/Ohm or a reading on the meter scale of Infinity.
: 1st connect the Earth lead of the test meter to the Earth conductor then connect the other test lead to each Active in turn, Record all meter readings.
6 : Check your motor schematic drawing for correct cable connection sequence then replace cables onto motor post L1 L2 L3 and tighten nuts.
7 Notify all relevant persons regarding Re Energizing Apparatus
: Maintenance Staff.
8 : Replace all protective devices, Fuses, Circuit Breakers, in the Exact same order they were initially removed.
9( a ): Looking away from the switchboard, distribution board, insert the protective device into the Live connection.
9( b ): Lock switchboard or distribution board.
9( c ): When safe switch on the apparatus.
9( d ): Check for correct rotation of motor shaft.
9( e ): Run apparatus for a given period of time for effective functioning of apparatus.
9( f ): Complete relevant safety certification.
9( g ): The person who completes the Safety Certificate has a Maximum of 2 working days by means of electronic communication (Telephone) to lodge the safety certificate to the chief electrical inspectors office.
9) h ): The person who completed the safety certificate has
2 days to register a safety certificate.
4 Days to issue a safety certificate to the customer.
I have done this to help people get more confidence to tackle the blaster Exam
Procedure for disconnection of Electrical Appliance
1 Notify all relevant persons of the intended work to be carried out
: Maintenance Staff.
2 Check with the company you are working for any required
: Permits to Work, and Relevant paper work .for disconnection of appliance & reconnect of appliance from relevant staff.
: Check the estimated time of disconnection of equipment.
3 Check with maintenance staff to ensure NO Essential Services shall be affected. (Example) Fire Pumps, Emergency Lifts, Smoke and Emergency Lighting+ Fire Fighting Equipment.
4
5 Check for disruption of 3 phase loading (NO Single Phasing of Equipment)
Single phasing = disconnection of 1 phase increases loading on apparatus.
5 Trace circuit to be disconnected to the Isolation Point.
: Isolated = Completely Disconnected.
: Isolated and Earthed = Circuit is Dead and cables connected together.
: Trace circuit back to isolation point.
6 Identify any Isolation devices.
(Example) Fuses, Circuit Breakers, Switches, Switchboards.
Procedure for Start of Test
: From a good known Earth reference point test the Voltmeter.
: Test for any LIVE Equipment.
: The testing device records results that may operate the Protective devices.
: From the Earth reference point provided check all steelwork on the apparatus under test and scrape away “Paintwork” Using the Volt meter provided check for ZERO Volts on the Meter.
: Always test Volt Meter provided before and After all testing.
: Do not forget to use the Earth Reference Point Provided by the Examining Body.
8 Tag all Areas of intended disconnection.
: When the appliance you are working on is Disconnected Tag all cables.
: Tag off switchboard in a SAFE Position.
: Locate correct fuses or circuit breaker & remove fuses from the fuse carrier and
: Tag fuse carrier
: Record your name and contact details on relevant Tag.
: Record relevant department information, (date, time) company you have been employed by onto Tag of disconnection.
: All Tagged equipment must be signed by the qualified person performing the disconnection of the apparatus.
: Replace “Empty” fuse carriers into switchboard line.
9 Actual Disconnection of Apparatus. If this is a motor
10
: Switch on apparatus and record D.O.R. (Direction of Rotation)
: Move the switch to the on position and check rotation of motor shaft.
: Record all information of Name Plate provided.
: Remove Fuses 1 at a time and test for Live Voltage on contacts at point of disconnection (Joint Box) at Appliance.
9 (a) : Test between all combinations for LIVE Voltage using the Volt Meter.
: Test Actives to Earth.
: Test Actives to Neutral.
: Test all combinations of L1, L2, L3. if Three Phase.
: Test Neutral and Earth.
Record all Test Results.
(Note) : Before removal of fuses from switchboard (Procedure)
1 : Ensure correct safety clothing is worn.
2 : Visually inspect the area you intent to isolate.
3 : Visually inspect protective devices (Fuses, Fuse Carriers, circuit breakers)
4 : With arm straight one hand in pocket (For safety)
6 : Look away while extracting fuse from switchboard.
:Always Act in a Safe Manner.
7 : Before any disconnection Always test for Live Voltages.
: After disconnection of apparatus test all cables with Voltage Meter.
9 (b): Remove 1 fuse at a time from switchboard.
: Remove fuse from fuse carrier and place fuse in a secure location (pocket).
: Replace Blank fuse carrier into switchboard line.
: Record Fuse type and current rating of fuse on information card provided.
By Examining Board (Examiner).
(Note) DO Not at any time leave ANY Fuses or Elements in or at the fuse board
9 (c) : Testing at apparatus (Motor).
: After disconnection of cables test with Volt Meter.(Record any results).
: The Earth is the 1st system of protection for you.
: 1st test all Active conductors.
: 2nd test neutral conductor.
: Test Earth conductor last.
: Make a sketch of any connections L1 L2 L3 and any colour coding of active conductors if cables are all the same colour at the motor then use identifying tape to distinguish L1 L2 L3.
: Record if motor winding are wired in Star or Delta on nameplate.
: Tape all cables with insulation tape each cable must have a minimum of 4 wraps of insulation tape completely covering all exposed conductors.
: For mechanical protection insert cables from motor into a Joint Box and tie back to protect.
11 : Enquire at all times to confirm if apparatus is to be disconnected and re connected.
12 : Enquire if you are required to submit a SAFETY CERTIFICATE.
Reconnection of Electrical Apparatus
1 : Notify all relevant persons of the intended work to be carried out
: Maintenance Staff.
2 : Visual inspection that Tags are in place at
: ( a ) : Isolation point (Joint Box). At Appliance
: ( b ) : Contactor.
: ( c ): Switchboard.
3 : Visual check of fuses, circuit breakers have NOT been replaced by others.
4 : Remove Joint Box and insulation tape, Earth 1st. (Essential)
: Test for a good known Earth connection using the Volt Meter.
: Test for Live between Earth and all LIVE Conductors.
: Test Volt Meter for (Live or Active) reading using a good known power source.
(This test is to confirm correct functioning of Volt Meter).
“Before any connections of cables always check and test the Meter you intend to use. (This may save your LIFE).
(a) : Using a Insulation Resistance and Continuity Tester set the meter to the Ohm scale and calibrate by connecting both leads together. Record results.
(b) : Using the Resistance meter test between Earth and all parts of the apparatus under test Maximum reading not to Exceed 0.1 Ohm. Dependant on which state your in. Record all test readings.
(c) Test Rotating parts of motor (motor shaft) this reading NOT to exceed
1.ohm Resistance Maximum.
If The Test FAILS
You must inform the “examiner”
This test does not conform to the required standard and has FAILED. The resistance reading recorded on the rotating parts of the apparatus under test exceed the maximum permissible value of 0.1 Ohm. (Depnding of State’s)
5 : Insulation Resistance Test at 500V Range setting on the Meter
: Calibrate your meter before commencing any test (set meter to zero)
The test must obtain a minimum reading of 1M/Ohm or a reading on the meter scale of Infinity.
: 1st connect the Earth lead of the test meter to the Earth conductor then connect the other test lead to each Active in turn, Record all meter readings.
6 : Check your motor schematic drawing for correct cable connection sequence then replace cables onto motor post L1 L2 L3 and tighten nuts.
7 Notify all relevant persons regarding Re Energizing Apparatus
: Maintenance Staff.
8 : Replace all protective devices, Fuses, Circuit Breakers, in the Exact same order they were initially removed.
Sequence of Re-Inserting Protective Devices.
9( a ): Looking away from the switchboard, distribution board, insert the protective device into the Live connection.
9( b ): Lock switchboard or distribution board.
9( c ): When safe switch on the apparatus.
9( d ): Check for correct rotation of motor shaft.
9( e ): Run apparatus for a given period of time for effective functioning of apparatus.
9( f ): Complete relevant safety certification.
9( g ): The person who completes the Safety Certificate has a Maximum of 2 working days by means of electronic communication (Telephone) to lodge the safety certificate to the chief electrical inspectors office.
9) h ): The person who completed the safety certificate has
2 days to register a safety certificate.
4 Days to issue a safety certificate to the customer.
I have done this to help people get more confidence to tackle the blaster Exam
Jun 24th 2008, 11:01 am
#53
BE Enthusiast
Joined: Feb 2006
Location: Melbourne
Posts: 980
Re: Disconnect & Re Connect Appliance in Victoria
Hello Folk, i forgot to take some more pics of the very fine work produced over here, this is in Melbourne on a very old 3 phase board once i got in the back of the board there was 3 massive connectors the largest ive ever seen all 3 phases
come into there respective connectors (Un insulated) then all outgoing cables to
all 3 phases are connected direct to these connectors, what a shambles its one or maybe the worst & danger est ive seen. i did a max demand of existing loading its well over loaded, i was asked to add a temp portable cabin onto the thing i said noway, the answer from this super intelligent bloke was connect it & just leave it & maybe it wont set on Fire.?????
what a cabbage i thought, so in the end i said if you want the cabin connecting its from another board with sufficient current rating.
if i remember i shall take some pics of the nightmare board i think its been like that since day 1 some 40 years ago then just added onto.
watch this space
come into there respective connectors (Un insulated) then all outgoing cables to
all 3 phases are connected direct to these connectors, what a shambles its one or maybe the worst & danger est ive seen. i did a max demand of existing loading its well over loaded, i was asked to add a temp portable cabin onto the thing i said noway, the answer from this super intelligent bloke was connect it & just leave it & maybe it wont set on Fire.?????
what a cabbage i thought, so in the end i said if you want the cabin connecting its from another board with sufficient current rating.
if i remember i shall take some pics of the nightmare board i think its been like that since day 1 some 40 years ago then just added onto.
watch this space
