QEW 1 / 2 / 3 Job Safety Plan

Time / Date: 12/2/2025 7:27:15

JSP ID: 4360

Scope of Work: Switch Loto and ZVV sector 8 racks S805 and S807 for IT. Re lease lotto and re energize when IT work is done and Racks ready to re energize at the end of this two day shutdown

General Information

Work Order

415067

Building

ALS 6 Sector 8 pit

Person in Charge

Christopher Nelson

Lead / Supervisor

Keusch, Justen

Logged Email

cnelson@lbl.gov

Division

Facilities

Work Planning

Modes of Work

☑ Mode 0 - Electrically Safe Work Condition
☑ Mode 1 - LOTO & Zero Voltage Verification

QEW Level

QEW 2

Second Person Requirement

Standby Person

Second Person Identified

Jevon Mattiassi

Other Participants

ALS RI, ALS EM and IT

Affected Persons Notified

Yes

System / Equipment

Switching

Hazardous Switching

Panel / Equipment ID

320A Circuit 9,15 BA rack S080514 S080714

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 inspect PPE Put UP Barricades signs and warning tape. When Ready Switch panel 320A circuits 9 and 15 Separately and simple loto each and then ZVV BA Racks S080514 and S80714. When ZVV is is Done turn over loto to the RI. When IT work is done and when it is ready to re energize we will re energize today before the end of this 2 day shutdown.

Control of Work Area

Minimum Approach Boundary

95 in

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

Will any other part of the body enter the RAB

Arc Flash Risk Assessment

Incident Energy

17.1 cal/cm2

Arc Flash Boundary

95 in

Working Distance

18 inches

Arc Flash PPE Level

Incident Energy Reduction Measures

Capacitor Hazards

Capacitor Bus Voltage

Capacitor Total Stored Energy (Joules)

Discharge Wait Time (Minutes)

Emergency Response Plan

Nearest Landline Location

On rack S0825

Emergency Number to Call

911

Sufficient Cell Phone Signal

Yes

Clear Exit Path

Yes

AED Location

In Lobby main entrance to ALS B6

Fire Extinguisher Location

End of Rack S0824

Contact Release Method Available and Tested

Voltage gloves

Environmental Conditions

Does the environment present additional hazards that should be addressed?

Insufficient lighting, Lookalike equipment, Noisy environment

Error Precursors

Task Demands

Work Environment

Distractions/interruptions

Individual Capabilities

Human Nature

Stress (limits attention)

Error Precursor Mitigations

Pay attention and keep on task and communicate with other participants use tsk lighting

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

Will be re energizing later today

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:

Detailed Scope of Work
Shock and arc flash hazards for each task
Controls to mitigate the hazards (procedures, precautions, energy source controls, PPE requirements)
Work area controls (barricades, signs, attendants)
Emergency Response Plan