TASK EXECUTION │ PROCEDURE / PROCESS
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The purpose of this SWI is to provide sufficient procedure and information for performing planned offline semi Annual electrical inspections on the pump stations’ VFDs. This procedure applies to the Underground pump station Pumps’ VFDs. 40013922VFD3001 40013922VFD3041 40013922VFD2061 40013922VFD3002
40013922VFD3042 40013922VFD2062 40013922VFD3011 40013922VFD2031
40013922VFD2011 40013922VFD3012 40013922VFD2032 40013922VFD2012
40013922VFD3021 40013922VFD2051 40013922VFD2021 40013922VFD3022
40013922VFD2052
Approximately 1 Hour. Document number: 10000399290 Effective date: 09/01/2024 Document owner: UG AM Superintendent Site name: Kennecott Underground Department: Asset Management
Please see attached SWI for Underground 24Wk Pump Station' VFD Inspection. -
Please read above attached the SWI for Underground 4WK Pump Station VFD Inspection.
Conducted
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Conducted on
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Inspected by
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Work Order number
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Location
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Qualification: Electricians - Trained, competent and authorized for the task.
HEALTH, SAFETY & ENVIRONMENTAL CONSIDERATIONS
Contact with Electricity
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Contact with Electricity
Please follow below CRM controls
• Flame & Arc Flash-resistant clothing with CAT 2 Rating.
• Identify and control the hazards to complete Critical Control Checklists.
• Avoid contact with live equipment.
• Follow Electrical Safety Procedure.
Slip, trip, and falls
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• A high standard of housekeeping shall be always maintained to prevent trip hazards.
• Be wary while walking around the pumps, motors, and other live equipment as the area might be slippery. -
Use appropriate PPE
Visibility and lightings
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Use a headlamp or flashlight when working at the pump station
Force
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• Regular rest
• Use appropriate tools.
• Avoid using brute force.
• Work in a team and ask for help from others -
Maintain good communication
Work instructions
1. PRE-START PREPARATIONS & ISOLATION (MUST FOLLOW C1 ISOLATION PROCESS)
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1.1 Identify and control the hazards using the TRACK
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1.2 Prepare material and tools:<br>Ensure that you have the necessary equipment/tools available at the site:<br>- Required Materials<br>- Required PPE<br>- Maintain good housekeeping<br>Proper Inspection of all tools and equipment
2. LOCK OUT, TAG OUT & TRY OUT
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2.1 Follow the lock out, tag out and try out procedures.
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“HOLD POINT”
Leader and team members (Subject Matter Expert - SME) must verify the critical control(s) where a critical risk exists -
2.2 Inform the DG supervisor or team lead of the scope of work and that work about to start.
3. VFD INTERNAL VISUAL INSPECTION
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3.1 Step Instruction
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3.1 Open the panel door for inspection.<br>Visual Inspection of Wires:<br>Use a flashlight if necessary to inspect the condition of the wires inside the panel:
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3.1.1 - 3.1.4 Steps Instruction
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3.1.1 Check Wires Labeling
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3.1.2 Check SLD (Single line diagram)
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3.1.3 Perform a 30% sample pull test on wiring terminations
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3.1.4 Check for Panel Cleanliness
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3.2 Look for signs of damage like fraying, discoloration, or overheating of the insulation.
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3.3 Step Instruction
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3.3 Check for loose connections at terminals or wire terminations.
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3.4 Look for any signs of corrosion on wire connections.
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3.5 Check Panels’ doors Sealing, and check if locks are working properly and not broken.
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3.6 Check for any damage (chewed wires, droppings).
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3.7 Check for signs of water leaks or moisture buildup inside the panels.
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3.8 Close the panel door following inspection.
4. TASK COMPLETION
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4.1 Clean work area of old or used parts.
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4.2 Return all unused parts to the warehouse.
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4.3 Clean and return all equipment and supplies to their proper location.
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4.4 Clean any used specialty tools and return them to their specified location.
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4.5 Is the task fully completed? Notify the DG supervisor that the Pump station's VFD offline inspections are complete, and it is back in operation.
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4.6 Report any defects to the supervisors and the planning team.<br>Any repair done must also be recorded.
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ADDITIONAL COMMENTS:
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Signature