Logo

QEW 1 / 2 / 3 Job Safety Plan

Electrical Safety
Back to Index
Time / Date: 11/17/2025 7:56:51
JSP ID: 4317
Scope of Work: Switch panel 311A circuit 22 apply Loto locks establish loto and em lock ZVV BA panel S111715 for work inside rack install 2 30 amp receptacles and work by IT must be on loto. When work is completed remove loto and re energize.

General Information

Work Order
415062 AlSU routine
Building
6 ALS
Person in Charge
Chris Nelson
Lead / Supervisor
Keusch, Justen
Logged Email
cnelson@lbl.gov
Division
Facilities

Work Planning

Modes of Work
☑ Mode 1 - LOTO & Zero Voltage Verification
QEW Level
QEW 2
Second Person Requirement
Standby Person
Second Person Identified
Kevin HOPE
Other Participants
EM’s and IT
Affected Persons Notified
Yes

System / Equipment

Switching
Hazardous Switching
Panel / Equipment ID
Panel 311A and rack S111715
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
Fill out JSP select PPE and inspect all PPE. Barricade with warning tape and signs Call EM shop and control room to notify before switching when they arrive we start switching and zvv once loto is established. When zvv has been established and all parties are on loto and paper work has been completed start work. When work is done begin to remove loto and switch back on AND TEST NEW RECEPTACLES.

Control of Work Area

Minimum Approach Boundary
102
Barricade Tape / Attendant
Warning - Orange

Shock Risk Assessment

System Voltage
120/208 V ac
Limited Approach Boundary
42 inches
Restricted Approach Boundary
3 feet, 6 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
19.1 cal/cm2
Arc Flash Boundary
102 inches
Working Distance
18 inches
Arc Flash PPE Level
2
Incident Energy Reduction Measures
0

Capacitor Hazards

Capacitor Bus Voltage
NA
Capacitor Total Stored Energy (Joules)
NA
Discharge Wait Time (Minutes)
NA

Emergency Response Plan

Nearest Landline Location
In sight of zvv point at 10 feet
Emergency Number to Call
911
Sufficient Cell Phone Signal
Yes
Clear Exit Path
Yes
AED Location
On rack L123 by booster Linac gate in pit area near zvv point 100 ft
Fire Extinguisher Location
Next to panel 302A2A 45 ft from zvv point
Contact Release Method Available and Tested
Voltage gloves

Environmental Conditions

Does the environment present additional hazards that should be addressed?
Insufficient lighting, Heavy traffic, Noisy environment

Error Precursors

Task Demands
Time pressure (in a hurry)
Work Environment
Distractions/interruptions
Individual Capabilities
Human Nature
Stress (limits attention)
Error Precursor Mitigations
Keep on task don’t get distracted use tsk lights use caution when traffic is high

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 Briefing

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 2026.03.17.1
Form Content and Feedback Contact: Michael Rose -- mvr@lbl.gov