Post on 08-Mar-2020
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
Authorised By: Liberty Primary Steel Whyalla ESN Date Reviewed: 08/05/2018
Liberty Primary Steel WHYALLA Intranet version is the only controlled version Page 1 of 36
ELECTRICAL SAFETY MANUAL
WHYALLA (Part 3)
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
Authorised By: Liberty Primary Steel Whyalla ESN Date Reviewed: 08/05/2018
Liberty Primary Steel WHYALLA Intranet version is the only controlled version Page 2 of 36
Contents
1 Refer to Electrical Safety Manual Pt-1(OST-OHS-ELEC-pro-001) ..................................... 3
2 Refer to Electrical Safety Manual Pt-2(OST-OHS-ELEC-pro-001) ..................................... 3
3 PART 3 – SITE SPECIFIC – WHYALLA............................................................................ 3
3.1 Electrical Safety Equipment .................................................................................................. 3
3.2 Accidents & Emergencies (WHYALLA) .............................................................................. 5
3.2.1 Reporting Incidents / Accidents ............................................................................................. 6
3.3 Policies, Quality Procedures, Work Instructions & Reference Lists ..................................... 7
3.4 RISK ASSESSMENT – Working on or near LV conductors................................................ 9
3.5 WORKING ON OR NEAR ELECT. EQUIP. & SERVICES ............................................. 12
3.6 Construction site electrical equipment ................................................................................. 13
3.7 SA Regulations Requirements regarding Electrical Apprentices & Cadets Work .............. 14
3.7.1 Qualified but inexperienced Electrical Personnel ............................................................... 14
3.7.2 Training for Electrical Competency .................................................................................... 14 3.7.3 Supervision of Apprentices .................................................................................................. 14
3.8 Plumbing Installations ......................................................................................................... 15
3.9 ‘Certificate of Compliance’ and Testing results .................................................................. 16
3.10 SAFE SYSTEM OF WORK (SSoW) .................................................................................. 17
3.10.1 When a SAFE SYSTEM OF WORK (SSOW) is required ..................................................... 17
3.10.2 Emergencies ......................................................................................................................... 17
3.11 Electrical PPE ...................................................................................................................... 20
3.11.1 Whyalla Standard PPE / Dress for Electrical Work ............................................................ 20
3.12 Working Safetly Near Overhead Powerlines/collectors ...................................................... 23
3.13 Electrical Switchroom Entry Requirements......................................................................... 27
Appendix 1 - Job Safety Analysis (JSA) for testing and fault finding ...................................................... 28 Appendix 2 – Risk Assessment for testing and Fault Finding .................................................................. 31
Appendix 3 – SIMEC Mining/Liberty OneSteel Whyalla switchroom audit ............................................ 35
Appendix 4 - Guide for the minimum PPE requirements for arc fault protection while testing and fault
finding on energised LV electrical equipment……………………….………………………...36
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
Authorised By: Liberty Primary Steel Whyalla ESN Date Reviewed: 08/05/2018
Liberty Primary Steel WHYALLA Intranet version is the only controlled version Page 3 of 36
1 REFER TO ELECTRICAL SAFETY MANUAL PT-1(OST-OHS-ELEC-PRO-
001)
2 REFER TO ELECTRICAL SAFETY MANUAL PT-2(OST-OHS-ELEC-PRO-
001)
3 PART 3 – SITE SPECIFIC – WHYALLA
3.1 ELECTRICAL SAFETY EQUIPMENT
Equipment Details Reference Supply
Barrier/ screen Use with open panels (refer 1.6.14.1 sketch 1) 1.6.14 Various
Breathing Apparatus Various to suit application 1.2.4 Various
Face Shield Replacement faceshield
Replacement bracket
Replacement chin guard
Storage bag
Order the components to build the face shield
1.6.3 55104163
55104164
55104165
55104166
Balaclava Arc fault rated 1.6.3 55087267
Forms Reporting shock to Office of Energy
COC Certificate of Compliance for Elect Work
1.2.5,
1.4.5
Electrical Inspector
SA Regulator
Gloves: Insulating and heat resisting
Ins- 4,000 V working (20,000v test) to AS2225
Ins- 1000 V working (2,500v test) to IEC 903, 21.6 cal/cm2
Size 7
Size 8
Size 9
Size 10
Size 11
Cotton Inner (absorbs perspiration) suit above
Leather outer over insulating
Size 8
Size 9
Size 10
Size 11
Lightweight leather gloves, for general elect use
Ansell powerflex, 12 cal/cm2 rated ‘Ninja’
Size 8
Size 9
Size 10
Size 11
3.11.1 55046969
55120621
55120622
55120623
55120624
55120625
55050119
55086750
55086752
55086754
55086758
53155690
55080756
55078174
55078175
55078176
Helmet Light PRIMUS Focus+K2 LED Light Standard for electrical work 55066737
Labels RCD Protected stickers
Test Before You Touch stickers
1.8.3
1.5.8
Special order
Dtls QM37.01
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
Authorised By: Liberty Primary Steel Whyalla ESN Date Reviewed: 08/05/2018
Liberty Primary Steel WHYALLA Intranet version is the only controlled version Page 4 of 36
Equipment Details Reference Supply
Mats and Covers - Insulating
Ins Cover: 1500 x 1200 x 2mm to AS4204.
Ins Mat 915mm wide x 6mm AS2978 class A:
- 1m length
- 2m length
- 3m length
- 4m length
- 5m length
- 6m length
1.6.13
1.6.14
55047129
55048324
55048323
55048322
55048321
55048320
55048319
Lock, Personal Red 1.5.1 54001609
Multimeter All new multimeters purchased from July 2015 shall be Cat IV at 600V minimum
1.7.2 Current electrical supplier
Rescue kit In switchrooms 1.6.5 54033863
Signs, Safety Safety signs, (Prohibition, Mandatory, Warning, Danger, Emergency information and Fire signs)
1.11.3 Special order
Tape, Barricade Black/Yellow Warning/Caution
Red/White Danger
Blue/Yellow Commissioning
51683176
51683140
51683164
Tape, U/ground Orange “Caution Cable Below” 150mm x 360m 1.6.2 51683206
Test tags Refer to Work Instruction WI37.EIC.084 1.7.5 WI37.06.001
Warning Tags Black/yellow 55032365
Welding VRD’s Limits open circuit voltage from welding m/c 1.14 Order or Hire
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
Authorised By: Liberty Primary Steel Whyalla ESN Date Reviewed: 08/05/2018
Liberty Primary Steel WHYALLA Intranet version is the only controlled version Page 5 of 36
3.2 ACCIDENTS & EMERGENCIES (WHYALLA)
#1 Raise the alarm and contact emergency personnel. Do not hang up but remain calm and give all details.
4000 on internal or 8640 4000 on external / mobile phones #2 Keep well clear of live conductors to avoid risk of electric shock form ‘step’ or
‘touch’ potential..
DO NOT BECOME THE NEXT VICTIM #3 Switch off power supply where practical.
If power cannot be immediately isolated and victim is unconscious or unable to move, assess the accident site for hazards, take precautions against becoming a victim yourself and:
High Voltage, or if not sure: Do not rescue until voltage source has been isolated and verified.
Low Voltage, eg 240/415 volts: Move victim from danger using insulated rescue crook or dry non conductor eg clothing, wood, clean rope or sheet. Do not touch the victim’s skin or use anything metallic or moist.
#4 Resuscitate unconscious electric shock victim. (Refer 1.2.6)
Transport all persons who have had an electric shock by Ambulance to the hospital without delay. Advise Medical Staff of the shock details to enable them to determine the path of electrical current through the body. Severity of shock depends on magnitude, duration and path of current flow and health of the victim. Delayed effects of electrical shock can be severe, including internal organ damage from inhaling hot arc products. Common direct and indirect effects are muscle pain, burns, eye damage from arc flash or injuries from a fall.
Make safe the installation causing the electric shock but do not interfere with it unnecessarily as to prevent a proper investigation of the accident. Report electric shock as soon as practical to Liberty OneSteel Whyalla and the Technical Regulator.
#5 Stay in the machine (vehicle, excavator, crane, etc) if it contacts live conductors to avoid risk of electric shock. Move machine clear if possible, to break contact with the live conductor. If necessary to leave the machine, eg, fire, jump clear, landing with feet together and do not touch the machine. To leave a hazard site jump or take short ‘shuffle’ steps.
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
Authorised By: Liberty Primary Steel Whyalla ESN Date Reviewed: 08/05/2018
Liberty Primary Steel WHYALLA Intranet version is the only controlled version Page 6 of 36
#6 Fight Low Voltage electric fires in the early stage with hand extinguishers if practical and safe to do so. Carbon Dioxide for small electrical or Dry Chemical powder for larger fires. Otherwise keep well clear of the fire in electrical switchrooms or substations to avoid hazard from burning oil, inhalation of toxic fumes from burning cables and electric shock. Keep others clear until trained and authorised personnel arrive. Do not fight fires on HV equipment. Report the fire and wait. Do not enter a switchroom if the alarm from automatic fire protection systems is activated until the All Clear is given by Emergency Services. Audible and visual evacuation alarms are activated prior to discharge. Contact the Emergency Personnel with details unless you know they have been contacted. Not all automatic systems report to Security. To avoid false alarms when doing maintenance work in protected switchrooms, contact emergency services before starting work and again on completion so that the system can be isolated.
3.2.1 Reporting Incidents / Accidents
Report all electric shock and incidents to your supervisor immediately. The supervisor shall report the shock/incident to the SIMEC Mining/Liberty OneSteel Whyalla Electrical Inspector as soon as possible or, in his absence or outside normal hours the Electrical Flying Squad who will assist as required to conduct the incident investigation as per WI37-CEN-009. Report to the Technical Regulator, to be completed by the Electrical Inspector Immediately by phone for accidents involving death. Within one working day when the victim requires medical assistance. Within 10 working days for other cases. Report to Safework SA It is the Plant Managers responsibility to communicate with the SafeWork SA office in case of electric shocks or significant electrical incident.
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
Authorised By: Liberty Primary Steel Whyalla ESN Date Reviewed: 08/05/2018
Liberty Primary Steel WHYALLA Intranet version is the only controlled version Page 7 of 36
3.3 POLICIES, QUALITY PROCEDURES, WORK INSTRUCTIONS & REFERENCE LISTS
GFG Alliance (SIMEC Mining/Liberty OneSteel Whyalla) policies detailed in this document and other Procedures, Manuals or Work Instructions shall be followed where applicable to the work being carried out. The policies commonly used are listed below along with Australian Standards and Regulations referenced in this document.
Note that all applicable standards are not necessarily listed:-
Management Procedures
SA31.245 SIMEC Mining / Liberty OneSteel Whyalla Site Conditions https://www.libertyonesteel.com/OneSteel_whyalla/default.htm
QM - Quality Manuals
QM37.01 Electrical equipment and Installation Tender Manual
QM37.03 High Voltage Safety Manual
QM37.04 Electrical Technical Handbook
QP29.24 Radiation Safety Manual
QP - Quality Procedures
QP02.05 Modification Control and Trial Process
QP29.01 Manual handling risk management
QP29.06 Incident Investigation and Reporting
QP29.13 Safety Risk Management
QP29.18 Working in Confined Space
QP29.20 Isolation for personal protection
QP29.21 Warning Tag regulations
QP30.17 Access to Switchroom and Switchyard
WI - Work Instructions
WI29.251 Hot work
WI29.600 Safe system of work process
WI37.EIC.084 In-Service Safety Inspection & Testing of Elect. Equipment
WI37.EIC.086 Procedure to Initiate and Control Excavation and Piling work.
WI37.INF.040 HV Distribution Committee
WI37.07.001 Working on or in the vicinity of Elect. Trays or Ladders
WI37.EIC.091 Penetrating Surfaces and Structures
WI37.EIC.135 Demolition of Electrical Equipment
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
Authorised By: Liberty Primary Steel Whyalla ESN Date Reviewed: 08/05/2018
Liberty Primary Steel WHYALLA Intranet version is the only controlled version Page 8 of 36
HB Handbooks Produced by Standards Australia but not an AS standard HB13 Handbook on hazardous areas and equipment
HB94 Electrical safety in the workplace (is now dated due to the change from OHS to WHS in 2012)
Other Standards, Regulations and Publications
AS2225 Insulating gloves for electrical purposes
SA Work Health and Safety Act 2012 and Regulations 2012
Safe Work Australia Managing Electrical Risks in the Workplace, Code of Practice
SA Electricity Act 1996 and Regulations under the Act 2012
SA Plumbers, Gasfitters and Electricians Act 1995 and Regulations
SA Electrical Products Act 2000 and Regulations
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
Authorised By: Liberty Primary Steel Whyalla ESN Date Reviewed: 08/05/2018
Liberty Primary Steel WHYALLA Intranet version is the only controlled version Page 9 of 36
3.4 RISK ASSESSMENT – WORKING ON OR NEAR LV CONDUCTORS
Risk Control Procedures Flow Chart (from AS4836)
For electrical work ON live exposed LV conductors this Risk Assessment, or equivalent, shall be used and attached to the Authority to work on live conductors application.
For work NEAR live exposed LV conductors this Risk Assessment should also be used.
Prepare a Safe Work Procedure using the chart below and the checklists, which follow, in conjunction with
department Hazard Prompts, Safety Analysis etc.
Does the electrical equipment
need to be isolated to perform the work
safely?
Can the work be rescheduled so
that it may then be isolated?
Can barriers be installed satisfactorily?
Can the risk be controlled by the
use of safety equipment , PPE or a safety observer
?
Can it be isolated
safely at this time?
Work cannot be carried out energised
Risk assessment determines the need
for risk control Work request
Implement safe working procedures for the work being
carried out
Reschedule work
Carry out work
2
5
6 Isolate and make safe
1
3
4
7
8
9 10
Clauses refer to AS4836 . Margin
numbers are referenced in the
check list following this chart.
Yes No
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
Authorised By: Liberty Primary Steel Whyalla ESN Date Reviewed: 08/05/2018
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Risk Assessment Check List
Estimated date of work:__________________________________Plant: ___________________
Substation, Switchroom or Area: ___________________________________________________
Circuit: _______________________________________________________________________
Participants in Risk Assessment: ______________________ _______________________
_______________________ _______________________
The following check list includes items from this manual and standard AS4836. It is recommended that each department and contractor have access to the standard AS4836, in addition to the Electrical Safety Manual OST-ELECT-PRO-001. For additional information see the references given.
Column 3 should be marked with - or ? for every check item. If or ? then the last column should show the action
or procedure to control that risk.
* Check list item number plus chart pg 1 margin reference number.
Ref* Hazards check Item
- or ? Action/procedure to control risk
1. No High Voltage is present. If refer work to HV group. (HV Safety
Manual QM37.03).
2. No work on overhead power lines is involved. If refer work to HV group (HV Safety
Manual QM37.03).
3. All planned changes have been approved. QP02.05. Use Modification control procedure.
4. Dept. hazard prompts, safety analysis etc have been done & considered in the Safe Work Procedure. Electrical Safety Manual
5. 1,2 Isolation & Test before touch principles are key considerations in the Safe Work Procedure..
6. 1,2 Stored energy (capacitors etc) & dual supplies are considered..
7. 1,9 Tools, swarf etc cannot slip or fall & cause an arc between parts at different potential. active-active, active-
neutral or active-earth.
8. 1,4,9 Only conductors at the same voltage are worked on at one time. AS4836.
9. 1,4,9 No live exposed conductors within 500mm of workers. If use insulating barriers, mats, covers, gloves or
tools.
10. 1,4,9 No live conductors in adjoining compartments. If
isolate adjoining compartments or ensure that the work will not contact them or cause other contact.
11. 1,4,9 No live exposed conductors with potential dangerous arc fault within work area. If use, in addition to above,
determine arc fault risk and apply appropriate PPE.
12. 1,4,9 No live conductors with potential dangerous arc fault in adjoining compartments. If isolate adjoining
compartments or ensure that penetrations, swarf or movement will not cause an arcing fault in them.
13. 7 No work done on live conductors, insulating tools are not needed AS4836.
OR if insulating tools are needed/used they have been maintained and tested. AS4836.
14. 7,9 Standard PPE, body, head, eye protection, is used during work. AS4836.
15. 7,9 Class O insulating gloves are used for shock risk.
16. 7,9 Non-flammable gloves are used for arc risk
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
Authorised By: Liberty Primary Steel Whyalla ESN Date Reviewed: 08/05/2018
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Ref* Hazards check Item
- or ? Action/procedure to control risk
17. 7,9 Full-face shield, without metal frame, is used for arc risk. AS4836.
18. Workers are trained in rescue & resuscitation
19. 7,9 Safety observer is not needed, OR if needed, Safety observer is trained. AS4836.
20. 9 Safety/ rescue and communication equip will be available for emergency use.
21. 9 All workers are competent in the work to be done. QM37.01; AS4836.
22. 9 Conductive tools & equip. will not be used near live exposed conductors; AS4836.
23. 9 Neutral conductors will remain connected during work. QM37.01; AS4836.
24. 9 All parts normally earthed will remain earthed during work. AS4836.
25. 9 Work platform is stable. AS4836.
26. 10 If work is left unfinished equip/ work site will be left in safe state. QM37.01; AS4836.
27. 10 Before power restored work site search for misplaced tools, swarf etc which could cause arc fault. Clean up/ vacuum.
28. 10 Before power restored all work done will be tested. AS4836.
29. 10 When work is finished equipment will be returned to service in safe state. QM37.01; AS4836.
30. Cert. of Compliance will be completed.
31. No mechanical hazards which could cause injury Rotating or moving equipment? Burn hazard? Other mechanical hazard?
32. Climate hazards are controlled Wet weather? Lightning? Other weather hazard?
33. Tools right for job and correct use is understood Cutting/stabbing hazard?
34. Use of special PPE for specific risk has been considered Harness for working at height etc?
35. Site hazards are controlled: Height, scaffolds? Confined space? Harmful atmosphere (Liberty OneSteel Whyalla hazard zones)? Explosive atmosphere (AS2430)? Access: exits, barriers, vehicle movement? Ergonomic: manual handling? Environment: ventilation, noise, lighting, temperature? Other site hazard?
36. Emergency services are effective Emergency lighting? Fire? Communication, evacuation? Other emergency service, which could be needed?
Additional comments for Hazards:
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
Authorised By: Liberty Primary Steel Whyalla ESN Date Reviewed: 08/05/2018
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3.5 WORKING ON OR NEAR ELECT. EQUIP. & SERVICES
This Authority is only valid when completed, signed and dated. Attach risk assessment*, hazard prompts and other relevant records. (based on AS4836). Application date Work to be done date Plant Substation/ switchroom Circuit Reason why plant/ equipment cannot be isolated:
In the attached risk assessment, you MUST be able to answer ‘go’ () to all the questions and possible hazards referenced if permission is to be obtained for live electrical work on Low Voltage. If ‘no go’ () appears, preventative or contingent actions must be put in place.
Persons to be involved in risk assessment:
Name Signature Date
Persons undertaking live electrical work: I have participated in the risk assessment and agree to implement the required hazard controls.
Name Signature Date
Person/s undertaking observer role: I have participated in the risk assessment and agree to implement the required hazards controls.
Name Signature Date
Authority to work on live Low Voltage conductors: I am satisfied that the above live work is necessary and approve the hazard controls to be used.
Plant Elect Supervisor: print ........................................ sign ..................................... date ..........................
Electrical Inspector: print ........................................ sign ..................................... date ..........................
Plant: Manager/ Deputy: print ........................................ sign ..................................... date ..........................
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
Authorised By: Liberty Primary Steel Whyalla ESN Date Reviewed: 08/05/2018
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3.6 CONSTRUCTION SITE ELECTRICAL EQUIPMENT
Regulatory requirements:
Typical Construction site electrical equipment requirements: 1. Supply from permanent power or from Portable generator to AS2790 & AS3010.1.
2. Construction wiring installed/removed by registered electrical worker.
3. Power and lighting from circuit with overload and max 30mA RCD protection. 4. Regularly test equipment including wiring, boards, RCD’s. 5. Extension cords heavy duty, limited length, protected against damage. 6. Portable multi outlet boxes (AS3439.4). 7. Multiphase outlets connected so that all have the same phase sequence. 8. Dist switchboard for Construction Site (AS3012, AS3439.4):
Robust, corrosion resistant construction to suit site and minimum IP43 rated. Securely attached to pole, post or wall or of stable, freestanding design.
Boards, if more than one on site, should be distinguished by numbers/letters.
Provide means for anchoring cords. Labels as specified.
PROTECTED
RCD
Label: “Anchor cables on bar before plugging into sockets”
Guide for suitable arrangement of power dist. for Construction sites AS3439
Overload and RCD protection
Power outlets
Cable anchoring bar
Front view Section view
Cords supported over walkways etc.
Cords protected from damage.
Cable anchoring bar
O/l protection
Power outlets
Single phase 800 Three phase 950
Inner tube 25x25x2 RHS sliding in outer tube
32x32x2 RHS for height adjustment as required.
Braces 30x30x5 angle iron
RCD
Label: “Remove all leads prior to resetting RCD”
75
0
65
0
35
0
Label: “Keep closed Run all leads through
bottom”
‘Feet’ 40x40x5
angle iron
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
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3.7 REQUIREMENTS REGARDING ELECTRICAL APPRENTICES & CADETS WORK
REFER TO OST-OHS-PRO-001 SECTION 2.3 FOR DETAILS
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3.8 PLUMBING INSTALLATIONS
Dangerous situations can be created if plumbing equipment is rewired incorrectly. Some SIMEC Mining / Liberty OneSteel Whyalla installations have complex circuits.
The disconnection and reconnection of electrical components and any re-wiring of plumbing installations with fixed wiring on a SIMEC Mining / Liberty OneSteel Whyalla site shall only be done by a suitably qualified Electrician and not a worker with a restricted Electrical Licence. Those working on plumbing installations shall comply with the work scope, the issued ATW and SIMEC Mining / Liberty OneSteel Whyalla electrical work requirements. General plumbing work: Workers can be at risk of electric shock during routine work such as cutting water pipes if there is a faulty installation. Pipes should be bridged across with cable connected insulated clamps such as ‘jumper leads’ before cutting. SIMEC Mining / Liberty OneSteel Whyalla site installation with fixed wiring: The isolation and electrical work shall be arranged through the Electrical Supervisor who shall ensure that a suitably qualified Electrician does the electrical work. Plumbers with restricted Electrical Licenses are not permitted to disconnect / reconnect the electrical components or do any wiring changes. Outside SIMEC Mining / Liberty OneSteel Whyalla site (e.g. SIMEC Mining / Liberty OneSteel Whyalla houses): A plumber with a restricted Electrical License may work within its constraints. Where wiring, re-connection, circuit modifications or component replacements are done a copy of the COC shall be forwarded to SIMEC Mining / Liberty OneSteel Whyalla Electrical Inspection Officer who will review and may verify the tests. The Contract Control Officer shall supply the Electrical Inspection Officer with details of plumbers likely to do such work. Plumbing installations supplied with 240 volt socket outlet: A plumber with a restricted Electrical License may switch off and remove plug from outlet and then undertake repairs on the unit. The unit shall be inspected / tested / tagged by an Electrician before it may be re-installed by the Plumber.
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
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3.9 ‘CERTIFICATE OF COMPLIANCE’ AND TESTING RESULTS
For all electrical work requiring inspecting / testing a Certificate of Compliance form shall be accurately completed. This includes the disconnection or reconnection of fixed wiring. Information to include measured test required by AS3000 and the measured results, e.g. earthing resistance, insulation resistance and fault loop impedance, signed by the appropriate licenced electrical worker. The tradeperson completing the Certificate of Compliance shall ensure that;
Section “A” contains an accurate description of the work that has been completed.
Section “B” is the defect list of non-compliant issues that have been identified but were not part of the tradeperson’s work. It is mandatory to fill in this section. If no defects have been observed than simply write “No Defects Observed”.
For SIMEC Mining / Liberty OneSteel Whyalla departments where supervision exists, a SAP notification shall be raised to include the defects requiring to be repaired. Consideration should be given for the larger type issues whether they should also be entered into the departmental Hazard Register. The tradesperson should consult his/her supervisor. Retention period for Certificates of Compliance shall be 5 years for contractors and SIMEC Mining / Liberty OneSteel Whyalla departments. The Electrical Supervisor shall ensure that the earthing system resistance value is maintained over time. Distribution of Certificate of Compliance copies shall be as follows:
Owner’s or Occupiers copy Electrical Inspectrate
Network Operators copy Plant owner or electrical supervisor
Contractors copy Kept in the electricians book
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
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3.10 SAFE SYSTEM OF WORK (SSOW)
At SIMEC Mining / Liberty OneSteel Whyalla all work undertaken by maintenance personnel shall be conducted in accordance with the hazard identification and control requirements detailed in QP29.13 Safety Risk Management. QP29.13 details how the three methods of risk management, mental take 2, hazard prompt and SSOW, are to be used. Training in the usage of QP29.13 is available and every new starter in maintenance and engineering organisations at SIMEC Mining / Liberty OneSteel Whyalla is required to undertake this training, they are also required to fully participate in the execution of risk management documentation for all work undertaken. The following example of a SSOW should not be used as a proforma, the reader is directed to obtain the latest version of SSOW by visiting the SIMEC Mining / Liberty OneSteel Whyalla Intranet Occupational Heath & Safety website and download QP29.13 attachment 4.5 or 4.6.
3.10.1 Minimum SAFE SYSTEM OF WORK Requirements
Electrical function Take 2, Written Hazard Prompt or
SSOW from QP29.13
Faultfinding - Investigation (refer definition) Hazard Prompt
Faultfinding - Electrical Testing (refer definition)
SSOW
Electrical Work (refer definition) SSOW
Isolating (open panels) Hazard Prompt
Isolating (enclosed panels) Take 2
Isolation verification via contact testing SSOW
When within 500mm of live open panels SSOW
3.10.2 Emergencies
If a situation arises that involves;
a threat to the wellbeing of a person or group of persons, and/or
the potential for loss of critical process control or stability or the risk of a significant loss of operational security or critical plant
Electrical Safety Manual
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then a ‘Take 2’ shall be used. Should the Take 2 indicate it is unsafe to proceed, a formal SSOW must be utilised.
EXAMPLE ONLY
Example of Whyalla’s SSoW, QP29.13
(side 1)
REFER TO QP29.13
ATTACHMENT 4.6
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
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EXAMPLE ONLY
Example of Whyalla’s SSoW, QP29.13
(side 2) REFER TO QP29.13
ATTACHMENT 4.6
Electrical Safety Manual
Document: QM37.02 WHY-OST-ELEC-PRO-001- Version: 12.0
Authorised By: Liberty Primary Steel Whyalla ESN Date Reviewed: 08/05/2018
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3.11 ELECTRICAL PPE
Standard Electrical PPE
Indura Ultra Soft shirt and trouser. ATPV (cal/ cm2) rating of 8.7 for the shirt and ATPV (cal/ cm2) rati ng of 8.7 for the trousers, This PPE is suitable for arc fault protection during general electrical work.
Alternate Standa rd Electrical PPE
Indura Ultra Soft overalls. ATPV (cal/cm2) rating of 12.4. This PPE is suitable for arc fault protection duri ng general electrical work.
Switching PPE
Indura Ultra Soft Switching Coat over either of the combinations above plus Indur a Ultra Soft balaclava, arc flash rated face shield and HV gloves. Total ATPV (cal/cm2) rating of 51.5. This PPE is suitable for most high energy switching operations.
One Steel Whyalla
Arc Flash rated PPE for
Electrical Workers
A recent arc flash incident at Steelmaking and incidents outside of OneSteel have highlighted that cotton drill PPE is not an effective barrier under arc fault conditions.
To ensure the safety of our Electrical workers the Indura Ultra Soft range of arc fault rated clothing is available from the PPE. catalog
A full hood is required for HV switching
3.11.1 Whyalla Standard PPE / Dress for Electrical Work
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PPE / Dress for Electrical Work, General
PPE (Personal Protective Equipment) shall be used when the risk cannot be completely eliminated or controlled by Engineering and Administrative controls. Minimum PPE / Dress for Electrical Work The standard described below is to be implemented in SIMEC Mining / Liberty OneSteel Whyalla by August 2010. Shall be as follows:
Safety glasses with side shields
Lightweight leather gloves (gauntlet type to protect the wrist) wherever practical.
Safety footwear with rubber soles.
Safety hat, hearing and / or hand protection where required by the nature or location of the work site or as indicated by local safety signs.
Long sleeves and collard shirt fastened at the wrist,
made of Indura Ultra Soft with minimum ATPV rating of 8.7cal/cm2
with sleeve cuff openings that are designed to make it difficult to roll sleeve up
with sleeve placket openings sewn up or gusseted or fastened to prevent exposure to bare wrist
and
Long trousers that cover the ankles, made of Indura Ultra Soft with a minimum ATPV rating of 8.7cal/cm2
or
Overalls made from Indura Ultra Soft with minimum APTV rating of 12.4cal/cm2.
High-risk electrical work For HV work and work with a high risk of arc-fault a switching coat made from Indura Ultra material shall be worn (refer to table in this section). The switching coat when worn over the minimum electrical PPE attire will offer a combined APTV of 51.5cal/cm2. The coat shall be worn with the approved electrical full-face shield and approved electrical balaklava. Note that a full hood is required for HV switching operations.
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PPE for tasks with increased risk of shock or arcing Some electrical tasks at SIMEC Mining / Liberty OneSteel Whyalla sites have an increased risk due to the nature and age of the plant and the presence of some uninsulated equipment.
Task example and PPE additional to minimum
Insu
latin
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Non
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ab
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ath
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Insu
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Full
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ield
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Sw
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Switching LV knife or open switch <100A M - - M -
Switching LV knife or open switch >100A M - - M RA
Switching LV enclosed switch >100 A - M - - -
Switching HV at breaker see 1.9 M - - - M
Aerial switching: reclosers, air breaks, links and fuses M - - M -
Lockout on live open panels 1 M - - - -
Work at rear of live open panel 2 M - RA M -
Electrical testing LV control circuits M - RA RA -
Electrical testing high energy LV circuits M - RA - M
Energised cables on tray M - RA - -
Resetting open panel overload M - - RA RA
Non electrical work, e.g. cleaning switchrooms 2 Subject to risk assessment
RA = Risk assess M = Mandatory - = not required
1. To minimise non-electrical personnel need to enter electrical switchrooms isolation boards should be located outside the switchrooms where practical.
2. Non-electrical worker not permitted to work at rear of open panel, unless authorised by Electrical Supervisor.
3. Insulating gloves to AS2225 or IEC903. Minimum rating – Class O (1000V working) and ATPV 21.6 cal/cm2, . Leather over glove to be used when the insulated glove may be damaged by the task
4. Insulating mat (personal) for additional risk control for electric shock. To AS2798 or AS4202.
5. Approved full-face shield with balaclava: (face shield is to have no metal rim for control of arc risk and shall be SIMEC Mining / Liberty OneSteel Whyalla standard Uvex arc rated faceshield). A full hood is required for HV switching
6. Switching coat shall be Indura Ultra Soft type and when worn over the standard electrical PPE give a minimum APTV rating of 51.5cal/cm2.
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3.12 WORKING SAFETLY NEAR OVERHEAD POWERLINES/COLLECTORS
Find below safety guideline from the Office of Technical Regulator regarding working safely near
overhead powerlines. We have extended this requirement to plant collector rails as well.
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Cranes and Elevating Machinery
The Electricity (General) Regulations 1997 are administered by the Office of the Technical Regulator. For safety reasons, minimum safe distances from powerlines, including clearances for machinery, vehicles or vessels with an elevating component or shear legs, are prescribed by the Regulations. These prescribed distances apply from the closest part of the machinery, including its load, to the closest conductor of the powerline, at all times. See the Machinery column of Table 1. Prescribed distances are dependent on the voltage of the powerline which must be correctly identified.
In addition to the requirements of the Regulations, Australian Standard AS2550 – Cranes, hoists and winches – Safe use, describes the operation of cranes and elevating
working platforms in proximity to powerlines. This Standard provides general guidance regarding safe working practices for machinery near powerlines, with clearances depending on whether the work is conducted with or without a spotter. See the Cranes column of Table 1.
Minimum safe clearance with risk assessment
To work to the prescribed distances of the Regulations, you must also be able to show that you have allowed for any likely movement (wind effects, mechanical/hydraulic swinging of crane loads) of both the powerline and the machinery, including operator error. The clearance distances prescribed by the Regulations are absolute clearances that cannot be breached at any time. Any breach of the prescribed clearances puts you, and all those on your site in immediate danger of electric shock.
Image 1: Possible movement of powerlines and machinery must be taken into consideration.
In order to operate machinery with an elevating component such as cranes, elevating work platforms and earthmoving equipment such as excavators, to the minimum clearances prescribed by the Regulations as shown in the Machinery column of Table 1, the following safety requirements (in accordance with the principles of AS2550) should be applied. (a) The voltage must be identified; and
(b) A spotter (competent) person who is suitably
qualified by experience, training, or both with the sole
duty of observing and warning against unsafe
approach of the crane, its lifting attachments or its
load to powerlines) carries out spotting duties at all
times; and
(c) A documented risk assessment is carried out before
any work commences, in consultation with all
relevant parties involved in the work; and
(d) The electricity network operator is notified before
commencing work; and
(e) Any conditions specified by the electricity network
operator or Technical Regulator are complied with.
Image 3: Clearance zones for operating machinery in proximity to powerlines. No ceiling on clearance zones (see Note 1). Note 1: Special situations – lifting above powerlines may be acceptable in some situations subject to the following conditions: (1) Alternative work methods being explored as a first
preference; and
(2) Conditions (a) to (e) above being complied with; and
(3) For voltages ≤ 1000 V ac (low voltage) – notification to
the Office of the Technical Regulator; or
(4) For voltages > 1000 V ac (high voltage) – obtaining
written authority from the operator of the electricity
infrastructure (usually ETSA Utilities) and notification to
the Office of the Technical Regulator
Contacts: ETSA Utilities (Builders and Contractors Line) – 1300 650 014 Office of the Technical Regulator (DTEI Energy Division) – (08) 8226 5500
2 Working safely near overhead powerlines
Minimum distance between moving
parts of machinery and the powerlines
Risk assessment and spotter
required
Obtain this distance
from Table 1
3 metres for stobie poles, 8
metres for towers
6.4 metres for stobie poles, 10 metres for
towers
Spotter required for work within this area
No spotter required for
work within this area
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s
Safe Approach Limits for People
Safe approach limits for persons are prescribed in the Electricity (General) Regulations 1997 to protect people working in proximity to powerlines. These are separate, and in addition to, distances prescribed for buildings and machinery. These distances include any article of clothing worn by the person and any conductive objects held or carried by the person.
Scaffolding
The Electricity (General) Regulations 1997 prescribes the legal clearances to powerlines from structures, which includes scaffolds. These clearances are dependent on the voltage of the powerline. This recognises that the higher the voltage, the more dangerous it is to work close to the powerlines, and therefore requires greater clearances. These clearances are shown in the Buildings column of Table 1.
Australian Standard AD/NZS 4576 – Guidelines for Scaffolding may in some situations define different clearances that the Electricity Regulations. This Standard uses the same clearances for all voltages and recommends that where practical the powerlines be de-energised when erecting scaffolds in close proximity to poerlines.
You must ensure that no part of the scaffold, persons, or other equipment or materials can breach the safe approach limits (discussed above), especially during the erection of the scaffold.
If these clearances cannot be achieved, it will be necessary to contact the electricity supply authority (usually ETSA) Utilities) to make arrangements for the safe completion of the works. This may require a Network Access Permit to be issued.
In some circumstances the clearances specified in AS/NZS 4576 may be less than those prescribed in the Electricity Regulations, in which case the prescribed distances of the Regulations must be complied with. Please refer to the ”Building safely near powerlines” brochure for more information on safe clearances for scaffolding.
Table1: Clearance distances from powerlines – to be taken from the position of the closest conductor
Cranes AS 2550.1 Crane Code. (Approved Code of Practice) Earthmoving machinery and Elevating Work Platforms
Machinery Electricity Act/Regulations Schedule 6 – Distance to operation of machinery, vehicles or vessel with elevating component or shear legs
Safe Approach Limits Electricity Regulations 23A(3) Safe Approach Limits
Buildings and Structures, including Scaffolds Electricity Regulations Schedule 2, Table 1
Voltage (in volts)
No Spotter Spotter required
Risk assessment and spotter required
Equipment and manually
operated tools
Power operated
tools
Horizontal direction
Vertical direction
240 6.4m 3.0m 1.0m 1.0m 3.0m 1.5m 3.7m
415 6.4m 3.0m 1.0m 1.0m 3.0m 1.5m 3.7m
7,600 6.4m 3.0m 1.5m 2.0m 3.0m 3.1m 5.5m
11,000 6.4m 3.0m 1.5m 2.0m 3.0m 3.1m 5.5m
19,000 6.4m 3.0m 1.5m 3.0m 3.0m 3.1m 5.5m
33,000 6.4m 3.0m 1.5m 3.0m 3.0m 3.1m 5.5m
66,000 6.4m 3.0m 3.0m 4.0m 4.0m 5.5m 6.7m
132,000 pole 6.4m 3.0m 3.0m 5.0m 5.0m 15.0m NA
132,000 tower 10.0m 8.0m 3.0m 5.0m 5.0m 20.0m NA
275,000 10.0m 8.0m 4.0m 6.0m 6.0m 25.0m NA
3 Working safely near overhead powerlines
Safe approach limit for persons
Minimum distance between moving
parts of machinery and the
powerline
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Network Access Permits
A Network Access Permit is a written document that you sign on receipt and old while powerlines are turned off, or otherwise made safe. The powerlines will only be re-energised after you sign and return the permit to the network operator. The permit, and any conditions attached, must be explained to you before you sign it. Contact ETSA Utilities Builders and Contractors line on 1300 650 014 or visit www.etsautiliities.com.au for information on obtaining a Network Access Permit.
Tiger Tails
When working near overhead powerlines,whether using machinery such as a crane or erecting a scaffold, it is recommended that you contact ETSA Utilities to have ‘Tiger Tails’ installed on the low voltage powerlines. These ‘Tiger Tails’ are a visual indicator only and do not reduce the prescribed safe working distances.
Determining the voltage and type of powerline
Find out the voltage of the powerline by:
Visiting www.sa.gov.au/energysafe
Contact the Office of the Technical Regulator on 8226
5500
Contact ETSA Utilities on 1300 650 014
High voltage powerlines are those of more than 1,000 V
(1 kV) of electricity. Low voltage powerlines refer to
lines of less than 1,000 V.
Images 4 and 5 below shows common types of poerlines in South Australia.
Image 3: Typical powerlines in built up areas.
33kV
66kV or 132kV
33kV 66kV or 132kV
33kV or 11kV
19kV (SWER)
Image 4: Common powerlines in South Australia
4 Working safely near overhead powerlines
See out “Building safely near powerlines” brochure for information on safe clearance distances and more safety tips
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3.13 ELECTRICAL SWITCHROOM ENTRY REQUIREMENTS
Switchrooms can pose a threat to the safety of personnel who enter them; hence a switchroom is not a place to loiter and a specific purpose is required before entry. All who enter electrical switchrooms are required to have successfully completed;
Switchroom Fundamental (Part I) training (theory) and
Switchroom Fundamental (Part II) training (practical, consisting of plant tour of electrical switchrooms and assessment).
Entry into switchrooms by those who have not completed Switchroom Fundamental training and assessment (part I & II) is allowed only under supervision of a trained and assessed person. Preference is that only electrical personnel enter switchrooms. Electrical personnel have been issued with special clothing to limit their expose to electrical energy in the form of arc flash. Entry into switchrooms to undertake lock-out.
It is highly preferred that lock-out for non-electrical work is undertaken at plant based local field isolator/s. If this is not suitable for the proposed task, lockout should be undertaken on a lock-out board located outside the electrical switchroom
Isolation of switchroom isolator/s should be undertaken by electrical personnel, even for simple isolation/s.
Only non-electrical personnel who have been trained, assessed competent and approved to undertake isolation and verification within a switchroom by their Plant Manager can undertake plant isolation within switchrooms.
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Appendix 1 - Job Safety Analysis (JSA) for testing and fault finding
Department / Location Whyalla Steelworks
Job Description: Risk assessment & JSA
Low voltage electrical testing and fault finding
Required PPE: In accordance with the minimum electrical PPE clothing requirements outlined in the SIMEC Mining / Liberty OneSteel Whyalla Electrical Safety Manual OST-OHS-ELEC-PRO-001 Gloves – Class 0 insulated 21.5 cal/cm2 arc fault rated minimum
Special Equipment / Tools / Materials (including Chemicals):
Multi-meters, Electronic test equipment and test leads of appropriate Category Rating, minimum Cat III at the voltage in question.
JSA Developed by: Scott Fisher, Peter Engelke, Whyalla ESN
Signature: Date:
JSA Authorised by: Peter Rostig Signature: Date:
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Step No
Description of Job Step
Potential Hazards
Risks Effective Control Measures
1 Preparation and accessing the work area
Unknown Environment
Complete a Safe System of Work for Electrical Workers to identify hazards/risk and implement control measures
2
Carry out electrical work:
- Fault Finding
- Testing
Electricity (LV)
Faulty Test Equipment
Electric shock
Arc fault injuries
A person intending to carry out electrical testing and fault-finding is entitled and, indeed, obliged to determine the need for a safety observer. A safety observer must have current LV rescue and resuscitation accreditation (12 monthly)
If unsure of test procedure STOP and discuss with team leader or supervisor.
Check against drawings. Check that you are working on the correct panel / equipment and that you are familiar with the circuit operation.
Check correct electrical PPE is worn in accordance with Electrical PPE Standard.
Check that NO conductive jewellery is worn as per QP29.29
At all times personnel must not allow any portion of their body or any movable object to come within 500mm of the exposed conductors unless expressly for the purpose of placing the test probes.
Use only the correct Category (Cat) rated test equipment (Cat III minimum), ensure the test equipment is in good condition and the correct range is selected.
Test the function of the test equipment before and immediately after use.
Check that correctly rated test leads are firmly attached to test equipment and are in good condition.
Check for both AC and DC voltages.
If neutral conductors are involved in the work, ensure you retest after any disconnection.
Task to stop if new uncontrolled risk is identified.
Task to be completed / System to be in place: Task Supervisor
Workers are authorised to use contact test equipment on energised LV. (Licensed Electrician or authorised Apprentice’s only)
Workers are trained and competent to do this task
Observers have completed CPR & LV Rescue training within the last year
Workers have completed the required local safety inductions, and their induction status is current
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Supervisor: Name: Signature: Date:
Other Permits / Clearances / Documents: (e.g. Isolations, MSDS’, etc.)
The undersigned have read, understood and agree to abide by this JSEA/Risk Assessment
Name
Sign
Date
Name
Sign
Date
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Appendix 2 – Risk Assessment for testing and Fault Finding
Department / Location Whyalla Steelworks
Job Description: Risk assessment
Low voltage electrical testing and fault finding
Required PPE: In accordance with the minimum electrical PPE clothing requirements outlined in the SIMEC Mining / Liberty OneSteel Whyalla Electrical Safety Manual OST-OHS-ELEC-PRO-001 Gloves – Class 0 insulated 21.5 cal/cm2 arc fault rated minimum
Special Equipment / Tools / Materials (including Chemicals):
Multi-meters, Electronic test equipment and test leads of appropriate Category Rating, minimum Cat III at the voltage in question.
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Low voltage electrical testing for testing and fault finding risk assessment
Hazard Description Applicable
Current Controls/Comments
Risk assessment Current controls Proposed Control measures
Risk Assessment Future controls Overall
Ranking Yes No C L R C L R
Arc fault risk from IP0X electrical equipment Yes
PPE, equipment design, site safety policies and procedures, trained and competent electrical workers
3 2 5
Improved PPE, specifically gloves (arc fault rated) Confirm compliance to site safety policies and procedures Confirm training and competency Confirm correct test equip Testing & fault finding JSEA Safety observer
3 1 4 4
Arc fault risk from IP2X electrical equipment Yes
PPE, equipment design, site safety policies and procedures, trained and competent electrical workers
3 2 5
Improved PPE, specifically gloves (arc fault rated) Confirm compliance to site safety policies and procedures Confirm training and competency Confirm correct test equip Testing & fault finding JSEA Safety observer dependant on SSOW
3 1 4 4
Exposed (not IP2X) energised electrical equipment resulting in electric shock
Yes
PPE, equipment design, site safety policies and procedures, trained and competent electrical workers
2 1 3
Improved PPE, insulated gloves Confirm compliance to site safety policies and procedures, specifically the “no electrical work within 500mm of exposed live electrical equipment “rule. Confirm training and competency Confirm correct test equip Testing & fault finding JSEA Safety observer
2 1 3 3
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Low voltage electrical testing for testing and fault finding risk assessment
Hazard Description Applicable
Current Controls/Comments
Risk assessment Current controls Proposed Control measures
Risk Assessment Future controls Overall
Ranking Yes No C L R C L R
Moving machinery or equipment (cranes) Yes
equipment design, site safety policies and procedures, trained and competent electrical workers
2 2 4
Isolate motions, or Safety observer in constant contact with worker and operator and no “line of fire” hazards
2 1 3 3
Wet environment Yes
PPE, equipment design, site safety policies and procedures, trained and competent electrical workers
2 2 4
RCD protection, or Safety observer
2 1 3 3
Responsible person not notified of the work in progress Yes
site safety policies and procedures, trained and competent electrical workers
2 2 4
Responsible person notified, procedure in place to constantly monitor the worker or a safety observer
2 1 3 3
No insulated mat to work from Yes equipment design, site safety policies and procedures 2 2 4
Install insulated mat Safety observer dependant on SSOW
2 1 3 3
Obstructions and limited access to the work area Yes
equipment design, site safety policies and procedures 2 2 4
Safety observer 2 1 3 3
Limited ability to isolate equipment in an emergency Yes equipment design 2 2 4
Safety observer 2 1 3 3
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References
SA Work, Health and Safety Regulations 2012
Approved Code of Practice for Managing Electrical Risks in the Workplace
Summary: Testing and fault finding on live LV electrical equipment, which is of IP2X or better construction, in a low risk environment, poses a low risk to the person performing the work and should be conducted using this JSEA.
Testing and fault finding on live LV electrical equipment, which is of IP1X or lower construction as well as being in an environment that is not low risk, poses a risk to the person performing the work. Further risk assessments, hazard controls, safe systems of work and a safety observer are needed.
Risk Assessment Team Team Leader: Peter Rostig
Occupation: Manager Engineering
Signature:
Date:
Facilitator: Daniel Schmidt
Occupation: Manager Safety Whyalla Steelworks
Signature:
Date:
Name: Eric Vines
Occupation: Electrical maintenance leader
Signature:
Date:
Name: Carlos Bravo
Occupation: Electrician
Signature:
Date:
Name: Peter Engelke
Occupation: Electrical inspection officer
Signature:
Date:
Plant owner:
Business Unit Manager:
Assessment period:
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Appendix 3 – SIMEC Mining / Liberty OneSteel Whyalla switchroom audit
See Document WHY.OST.ELEC.PRO.001 Append 3 in the document control system (Intelex) under Engineering/Electrical Services/Manuals
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Appendix 4 - Guide for the minimum PPE requirements for arc fault protection while testing and fault finding on energised LV electrical equipment
For definitions see the Electrical Safety Manual Area 1 – 400V distribution Area 2 - Crane SWRM Area 3 - Open MCC
Area 4 - Enclosed M Area 5 - Distribution board Area 6 - Control panels
Area 1- 400V Distribution
PPE level 1
Area 2 - Crane SWRM
PPE level 2
Area 3- open MCC
PPE level 2
Area 4- Enclosed MCC
PPE level 3
Area 5- DB's
PPE level 3
Area 6- Control panels
PPE level 3
PPE Level PPE
L1 Switching coat + hood + insulated gloves
L2 Standard electrical PPE + insulated gloves + face shield & balaclava
L3 Standard electrical PPE + insulated gloves