Time / Date: 4/22/2025 7:06:19
JSP ID: 3655
Scope of Work: Turn circuit 1 in pnl305a4a2a on which feeds pnl 579a
Work Order: W0426107
Building: Building 80
Person in Charge: Mayumi Taylor
Lead / Supervisor: Keusch, Justen
Logged Email: mjtaylor@lbl.gov
Division: Facilities
QEW Level: QEW 2
Modes of Work: Mode 1 - LOTO & Zero Voltage Verification
Second Person Requirement: Standby Person
Second Person Identified: Rob Ralph
List Other Participants: None
Affected Persons Notified: Yes
Switching: Hazardous Switching
Panel / Equipment ID: pnl305a4a2a
System Information Review: Panel Schedules, Arc Flash Labels
Control of Hazardous Energy: Simple LOTO
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

Sequence of Job Steps

List basic sequence of steps from start to finish.

Set up barriers, notify affected persons, wear appropriate ppe, turn on circuit 1

Control of Work Area

Minimum Approach Boundary: 35”
Barricade Tape / Attendant: Attendant

Shock Risk Assessment

System Voltage: 277/480 V ac
Limited Approach Boundary: 42 inches
Restricted Approach Boundary: 12 inches
Will the hands enter the RAB: No
Voltage Glove Class: 0
Will any other part of the body enter the RAB: No

Arc Flash Risk Assessment

Incident Energy: 3.94 cal/cm2 cal/cm2
Arc Flash Boundary: 35inches
Working Distance: 18 inches
Arc Flash PPE Level: 2
Incident Energy Reduction Measures: 0

Capacitor Hazards

Capacitor Bus Voltage:
Capacitor total stored energy (joules):
Discharge wait time (minutes):

Emergency Response Plan

Nearest Landline Location: Machine shop office
Emergency Number to Call: 911
Sufficient cell phone signal? Yes
Clear exit path? Yes
AED Location: Building 15 lobby
Fire Extinguisher Location: Machine shop walkway
Contact release method available and tested: Voltage gloves

Environmental Conditions

Does the environment present additional hazards that should be addressed?

Insufficient/cramped/awkward space, Lookalike equipment, Noisy environment

Error Precursors

Task Demands: Repetitive actions or monotony
Work Environment: Distractions/interruptions, Changes/departures from routine
Individual Capabilities:
Human Nature: Habit patterns, Assumptions, Complacency/overconfidence
Error Precursor Mitigations:

N/A

PPE Inspections

Safety glasses (ANSI Z87),
Arc-rated clothing (flash suit,
daily wear) including face shield,
balaclava,
hood.,
Hearing protection,
Non-melting footwear that fully covers the feet,
Removal of conductive articles,
Insulated tools,
Multimeter and other electrical test instruments

Notes / Other

None

Perform Job Breifing

PIC Conducts the Job Briefing. Cover all the contents of the Job Safety Plan.

A Job Briefing at a minimum must include:
  1. Detailed Scope of Work
  2. Shock and arc flash hazards for each task
  3. Controls to mitigate the hazards (procedures, precautions, energy source controls, PPE requirements)
  4. Work area controls (barricades, signs, attendants)
  5. Emergency Response Plan

Rev 2023.08.22.1
Form Content and Feedback Contact: Michael Rose -- mvr@lbl.gov