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Time / Date: 4/21/2025 9:44:24
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JSP ID: 3650
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Scope of Work: LOTO and electrical troubleshooting of the 1430 compressor PLC
module.
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Work Order:
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Building: 88
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Person in Charge: Brendan Ford
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Lead / Supervisor: Other
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Logged Email: bpford@lbl.gov
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Division: Other
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QEW Level: QEW 2
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Modes of Work: Mode 0 - Electrically Safe Work Condition, Mode 1 - LOTO & Zero Voltage Verification
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Second Person Requirement: Standby Person
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Second Person Identified: Brendan Ford
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List Other Participants: Patrick Coleman, Collin Anderson, Michel Kireeff Covo
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Affected Persons Notified: Yes
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Switching: Hazardous Switching
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Panel / Equipment ID: 80A3A5A9A CB 5 and 1430 Disconnect.
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System Information Review: Panel Schedules, Arc Flash Labels
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Control of Hazardous Energy: Simple LOTO
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Equipment Condition: Properly installed, Properly maintained, All doors and covers closed and fully latched, No signs of impending failure, Not energizing equipment for the first time, or after electrical repair
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Sequence of Job Steps
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List basic sequence of steps from start to finish.
1 Safely shut down the 1430 compressor. 2 Have QEW 2 that's qualified to switch and ZVV 480 VAC with an arc flash hazard of 23.4 cal/cm2. Switch off 80A3A5A9A CB 5. 3 Open the 1430 Disconnect and apply LOTO lock. 4 Open the 1430 electrical cover and ZVV on the 480 Vac terminal feeding the equipment. 5 Perform the needed troubleshooting under electrically safe conditions (no power present). 6 Clean area of tools and replace electrical cover. 7 Remove the 1430 LOTO and return to service. |
Control of Work Area
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Minimum Approach Boundary: 116"
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Barricade Tape / Attendant: Attendant
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Shock Risk Assessment
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System Voltage: 277/480 V ac
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Limited Approach Boundary: 42 inches
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Restricted Approach Boundary: 12 inches
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Will the hands enter the RAB: Yes
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Voltage Glove Class: 0
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Will any other part of the body enter the RAB: No
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Arc Flash Risk Assessment
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Incident Energy: 23.4 cal/cm2 cal/cm2
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Arc Flash Boundary: 116"
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Working Distance: 18 inches
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Arc Flash PPE Level: 4
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Incident Energy Reduction Measures: 0
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Capacitor Hazards
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Capacitor Bus Voltage: None
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Capacitor total stored energy (joules): None
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Discharge wait time (minutes): N/A
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Emergency Response Plan
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Nearest Landline Location: Around the corner to the SouthWest about 25 feet away.
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Emergency Number to Call: 911
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Sufficient cell phone signal? Yes
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Clear exit path? Yes
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AED Location: Will bring to location.
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Fire Extinguisher Location: 15 feet directly to the South.
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Contact release method available and tested: Rescue hook, Voltage gloves
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Environmental Conditions
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Does the environment present additional hazards that should be addressed?
Noisy environment |
Error Precursors
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Task Demands: Critical steps or irreversible acts
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Work Environment:
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Individual Capabilities: Unfamiliar with, or first time performing task
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Human Nature:
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Error Precursor Mitigations:
Go through steps before starting LOTO. |
PPE Inspections
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Safety glasses (ANSI Z87),
Arc-rated clothing (flash suit, daily wear) including face shield, balaclava, hood., Hearing protection, Rubber insulating gloves and leather protectors, Non-melting footwear that fully covers the feet, Removal of conductive articles, Multimeter and other electrical test instruments |
Notes / Other
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Perform Job Breifing
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PIC Conducts the Job Briefing. Cover all the contents of the Job Safety Plan.
A Job Briefing at a minimum must include:
Rev 2023.08.22.1 Form Content and Feedback Contact: Michael Rose -- mvr@lbl.gov |