Time / Date: 4/28/2025 7:54:16
JSP ID: 3673
Scope of Work: Performing switching on several circuit breakers, establishing LOTO, ZVV at equipment racks, trace cables, release LOTO , close circuit breakers.
Work Order: 415062
Building: B6
Person in Charge: Robert Ralph
Lead / Supervisor: Combs, Everett
Logged Email: RobertRalph@lbl.gov
Division: Facilities
QEW Level: QEW 2
Modes of Work: Mode 0 - Electrically Safe Work Condition, Mode 1 - LOTO & Zero Voltage Verification
Second Person Requirement: Standby Person
Second Person Identified: Mayumi Taylor
List Other Participants:
Affected Persons Notified: Yes
Switching: Hazardous Switching
Panel / Equipment ID: 319A
System Information Review: Panel Schedules
Control of Hazardous Energy: Complex LOTO w/ RI
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.

1.) Proper PPE 2.) perform switching 3.) establish LOTO 4.) ZVV at equipment racks 5.)trace cables 6.)release LOTO 7.) notify power being restored 8.) perform switching

Control of Work Area

Minimum Approach Boundary: 113”
Barricade Tape / Attendant: Warning - Orange

Shock Risk Assessment

System Voltage: 120/208 V ac
Limited Approach Boundary: 42 inches
Restricted Approach Boundary: 12 inches
Will the hands enter the RAB: Yes
Voltage Glove Class: 0
Will any other part of the body enter the RAB: No

Arc Flash Risk Assessment

Incident Energy: 22.5 cal/cm2
Arc Flash Boundary: 113”
Working Distance: 18 inches
Arc Flash PPE Level: 4
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: By column 13B
Emergency Number to Call: 911
Sufficient cell phone signal? Yes
Clear exit path? Yes
AED Location: Lobby B6
Fire Extinguisher Location: By door 6 to labyrinth
Contact release method available and tested: Voltage gloves

Environmental Conditions

Does the environment present additional hazards that should be addressed?

None

Error Precursors

Task Demands:
Work Environment:
Individual Capabilities:
Human Nature:
Error Precursor Mitigations:

Went over everything and no problems

PPE Inspections

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,
Insulated tools,
Multimeter and other electrical test instruments

Notes / Other

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