Wingate Creek Mine. Lockout Procedures. 14 Dragline

Transcription

1 Wingate Creek Mine Lockout Procedures BE Revision Log Rev. No. Requested By Approved By Revised By Rev. Date 0 Initial Issue R. Barefield R. Barefield Operations/Maint. Facility Mngt. R. Barefield

2 (LOCK REQUIRED / ELECTRICIANS) PURPOSE FOR S: AC Blower Motor Change Out Other (describe): Dragline bucket and ropes NO N/A Under Voltage YES Lock and Tag Main MG Set High Voltage YES Lock and Tag Local Breaker at MCC YES Lock and Tag Place bucket on ground, release tension on ropes Knockout MG sets at Open Under Voltage Breaker and apply Open Main MG Set HV Disconnects and apply Lock and Tag, Done Open Local Breaker Tag 240vAC N/A Visual 240vAC Back Control Room Transformer Room Visual, Three phase Disconnect open 480vAC Local. Close local Breaker AC Blower Motor Close Main MG Set HV Disconnects Line Voltage Close Under Voltage Breaker Control power to start MG sets Start MG sets at local Start Stop station MG sets running Operators, Oilers, Dragline Mechanics, all Electricians, Mechanics 14_dl_lockout_manual-2.doc Page 2 of 14

3 (LOCK REQUIRED / Oiler/Operator, Electrician) PURPOSE FOR S: Adding Oil to Bearings on MG Sets x Other (describe): Dragline bucket and ropes NO N/A ECB YES Lock and Tag Under Voltage YES Lock and Tag Main MG Set High Voltage YES Lock and Tag Place bucket on ground, release tension on ropes Knockout MG sets at Open ECB Breaker Tag Open Under Voltage Breaker and apply Open Main MG Set HV Disconnects and apply Lock and Tag, Done 240vAC N/A Visual 480vAC 240vAC Machine House Machine House Under Rear Machine Visual, Three phase Disconnect open Close Main MG Set HV Disconnects Close Under Voltage Breaker Control power to start MG sets Close ECB Breaker Power to transformers Start MG sets at local Start Stop station MG sets running Operators, Oilers, Dragline Mechanics, all Oiler/Operator, Electricians 14_dl_lockout_manual-2.doc Page 3 of 14

4 (LOCK REQUIRED / ELECTRICIANS) PURPOSE FOR S: Dragline Collector Ring Work Other (describe): Dragline bucket, shoes and ropes NO N/A from Sub to Dragline YES Birdie Back Feed YES Lock and Tag Place bucket and shoes on ground, release tension on ropes Excitation at Knockout MG sets at Pull Jacks at Sub, hang birdie, Done by Electricians Open Back Feed Isolation Disconnect Tag, Done by Electricians 240vAC N/A Visual Sub Visual at Jacks Under Rear Machine. Remove Lock and Tag from Back Feed N/A Isolation Disconnect Close Back Feed Isolation Disconnect on Line Voltage Dragline Remove Birdie, close jacks at Sub to Dragline Operators, Oilers, Dragline Mechanics, all Electricians 14_dl_lockout_manual-2.doc Page 4 of 14

5 (LOCK REQUIRED / ELECTRICIANS) PURPOSE FOR S: Hoist, Drag and Swing DC Motor Change Out x Electrical Mechanical Chemical Other (describe): Dragline bucket and ropes NO N/A Under Voltage YES Lock and Tag MG Set High Voltage YES Lock and Tag AC Blower motors YES Lock and Tag Place bucket on ground or secure swing brake with chain, release tension on ropes Knockout MG Sets at Open Under Voltage Breaker and apply Open Main MG Set HV Disconnect with Kirk Key and apply Open House Exciter Excitation Breaker, (HSEB) and apply Open AC Blower Motor Breaker and apply Lock and Tag 240v AC N/A Visual 240vAC 480vAC Machine House Under Rear Machine Upstairs Control Room Visual, 3 phase disconnect open Grey box with outside handle 480vAC Local. 14_dl_lockout_manual-2.doc Page 5 of 14

6 Close AC Blower Motor Breaker AC Blower Motor Close House Exciter Excitation Breaker, HSEB Breaker Close Main MG Set HV Disconnect with Kirk Key Close Under Voltage Breaker Start MG Sets at local Start Stop Station Check Rotation House Exciter 4160v power to MG Set starters, Done by Electrician Control power to start MG Sets MG Sets DC Motor Operators, Oilers, Dragline Mechanics, all Electricians 14_dl_lockout_manual-2.doc Page 6 of 14

7 (LOCK REQUIRED / ELECTRICIANS, MECHANICS) PURPOSE FOR S: Drag Cable Change Out by Mechanics X Electrical X Mechanical Chemical Thermal X Pneumatic Hydraulic X Other (describe): Stored energy in cable, drag drum Dragline bucket and ropes NO N/A Under Voltage YES Lock and Tag Main MG Set High Voltage YES Lock and Tag Brake Supply Valves YES Lock and Tag (in order) Place bucket on ground, release tension on ropes Knockout MG Sets at Open Under Voltage Breaker and apply Open Main MG Set HV Disconnect and apply Lock and Tag, Done Close Brake Supply Valve and apply Lock and Tag LOCKOUT LOCATION 240vAC N/A Visual 240vAC Air Machine House Under Rear Machine Drag Cable Drum ENERGY ISOLATION VERIFICATION TEST Visual, Three Phase Disconnect open Visual, Valves closed Open Brake Supply Valve Drag Cable Drum Close Main MG Set HV Disconnect 4160v power to MG set starters Close Under Voltage Breaker Control power to start MG sets Start machine at local Start Stop station MG sets 14_dl_lockout_manual-2.doc Page 7 of 14

8 Operators, Oilers, Dragline Mechanics, all Electricians 14_dl_lockout_manual-2.doc Page 8 of 14

9 Boom Inspection (LOCK REQUIRED / Oiler/Operator) PURPOSE FOR S: Go up Boom for Inspection x Other (describe): Dragline bucket, shoes and ropes NO N/A ECB YES Lock and Tag Place bucket and shoes on ground, release tension on ropes Knockout MG Sets at Open ECB Breaker Tag 240vAC N/A Visual 480vAC Machine House. Close ECB Breaker Power to Transformers Start MG Sets at Local Start Stop Station MG Sets running Operators, Oilers, Dragline Mechanics, all Oiler/Operator 14_dl_lockout_manual-2.doc Page 9 of 14

10 Maintenance Work with MG Sets Running (LOCK REQUIRED / ELECTRICIANS) PURPOSE FOR S: Maintenance work on Dragline with MG sets running, Dump Rope Work. Due to the nature of bucket and cable work, which may require several moves of the bucket to complete the task, a single employee may be designated to lockout Generator Excitation for the bucket repair crew. The names of each member of the bucket repair crew shall be on this tag. The operator must remain in the operator when Generator Excitation is not locked out. If an excitation breaker is opened then a lock and properly labeled tag including all names of crew members shall be applied by a designated employee.. x Electrical Mechanical Chemical Other (describe): Dragline bucket and ropes NO N/A ECB YES Lock and Tag Place bucket on ground, release tension on ropes Open ECB Breaker Tag 480vAC Machine House. Close ECB Breaker Power to Transformers Operators, Oilers, Dragline Mechanics, all Electricians 14_dl_lockout_manual-2.doc Page 10 of 14

11 (LOCK REQUIRED / ELECTRICIANS) PURPOSE FOR S: Power Cable Re-Route, NOT FOR REPAIR DAY See SHP 3160 Electrical Policy for power cable handling guidelines. Other (describe): power from Sub to Dragline YES Birdie Bucket must be in air to remove cable Excitation at Knockout MG sets at Pull Jacks at Sub, hang birdie, Done by Electricians 480vAC Operator Controls Visual 240vAC Operator Controls Visual Sub Visual, jacks open. Remove Birdie, close jacks at Sub to Dragline Operators, Oilers, Dragline Mechanics, all Electricians 14_dl_lockout_manual-2.doc Page 11 of 14

12 (LOCK REQUIRED / ELECTRICIANS) PURPOSE FOR S: Repair Day Other (describe): Dragline bucket, shoes and ropes NO N/A ECB YES Lock and Tag Under Voltage YES Lock and Tag Main MG Set High Voltage YES Lock and Tag Place bucket and shoes on ground or secure swing brake with chain, release tension on ropes Knockout MG sets at Open ECB Breaker Tag Open Under Voltage Breaker and apply Open Main MG Set HV Disconnects and apply Lock and Tag, Done 240vAC N/A Visual 480vAC 240vAC Machine Room Machine Room Under Rear Machine Visual, Three Phase Disconnect open Close Main MG Set HV Disconnects Line Voltage Close Under Voltage Breaker Control power to start MG sets Close ECB Breaker Power to transformers Start MG sets at local Start Stop station MG sets running Operators, Oilers, Dragline Mechanics, all Electricians 14_dl_lockout_manual-2.doc Page 12 of 14

13 (LOCK REQUIRED / ELECTRICIANS) PURPOSE FOR S: Dragline Temporary Power Back Feed Protection Other (describe): MG Sets, Operator Controls NO Back Feed YES Lock and Tag 7200v Sub YES Birdie LOCKOUT LOCATION ENERGY ISOLATION VERIFICATION TEST Knock out Control Knock out MG Sets at 240vAC N/A Visual Pull jacks, hang birdies, Done by Electrician Sub Hang Birdie Visual, jacks open. Before plugging in Generator, Open Back Feed Isolation Disconnect and apply Back Feed Isolation Disconnect Visual, breaker Power Cable must be Disconnected from J Box if Flot Crews are to handle or move Power Cable Plug in Generator 480vAC N/A N/A Disconnect Generator, Close Back Feed to Dragline Isolation Disconnect Pull birdies, set jacks Operators, Oilers, Dragline Mechanics, all Electricians 14_dl_lockout_manual-2.doc Page 13 of 14

14 (LOCK REQUIRED / Oiler/Operator) PURPOSE FOR S: Work on Auxiliary Equipment such as Air Compressor, Blowers and Fans, Exciter Set Induction Motors, Oil Pumps, Service Winches and Air Conditioners, etc. NOTE: Lockout of the MG Sets or Generator Excitation DOES NOT deenergize any of the above equipment; they must be locked out separately. x Thermal x Pneumatic x Hydraulic x Other (describe): Dragline bucket and ropes NO N/A ECB YES Lock and Tag Local Breaker YES Lock and Tag Place bucket on ground, release tension on ropes Knockout MG Sets at Open ECB Breaker Tag Open Local Breaker Tag 240vAC N/A Visual 480vAC Machine House 120vAC to 480vAC Local. Close Local Breaker Auxiliary Equipment Close ECB Breaker Power to Transformers Start machine at local Start Stop station Local power Operators, Oilers, Dragline Mechanics, all Mechanic, Electricians, Oiler, Operator 14_dl_lockout_manual-2.doc Page 14 of 14