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The_Pom_From_Aus Jun 8th 2008 1:17 am

Procedure for disconnection of Electrical Appliancee
 
wendy can you tell me how i actually start a thread on here,, its Arthur in Melbourne. ive done a Disconnect & Reconnect Procedure for people i would like to post it on a new Thread, here is the document ive done for people in Victoria.

Procedure for disconnection of Electrical Appliancee

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 : inquire at all times to confirm if apparatus is to be disconnected and re connected.
12 : inquire 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 procedure for people hoping they get through it all 1st time i know it looks a nightmare However if they can there heads round some of this then they should be fine.

Wendy Jun 8th 2008 1:18 am

Re: wendy
 
Hey Arthur, I'll get this post moved for you :)



Originally Posted by The_Pom_From_Aus (Post 6445781)
wendy can you tell me how i actually start a thread on here,, its Arthur in Melbourne. ive done a Disconnect & Reconnect Procedure for people i would like to post it on a new Thread, here is the document ive done for people in Victoria.

Procedure for disconnection of Electrical Appliancee

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 : inquire at all times to confirm if apparatus is to be disconnected and re connected.
12 : inquire 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 procedure for people hoping they get through it all 1st time i know it looks a nightmare However if they can there heads round some of this then they should be fine.


Pollyana Jun 8th 2008 2:04 am

Re: wendy
 

Originally Posted by Wendy (Post 6445782)
Hey Arthur, I'll get this post moved for you :)

Consider yourselves moved by a prowling Mod ;)
To start a new trhead go to the top of the forum in which you wish to post the thread, and click on the Blue New Thread button :)


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