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QEW 1 / 2 / 3 Job Safety Plan

Electrical Safety
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Time / Date: 2/25/2025 10:08:08
JSP ID: 3431
Scope of Work: Installing float sensors at Cooling Towers

General Information

Work Order
NA
Building
59
Person in Charge
Ernie Jew
Lead / Supervisor
Grounds, Jeff
Logged Email
ejew@lbl.gov
Division
Comp Sci

Work Planning

Modes of Work
☑ Mode 1 - LOTO & Zero Voltage Verification
☑ Mode 2 - Energized Diagnostics
☑ Testing and Troubleshooting
☑ Visual Inspection
QEW Level
QEW 2
Second Person Requirement
Standby Person
Second Person Identified
Eric Lucas
Other Participants
HVAC Controls electricians
Affected Persons Notified
Yes

System / Equipment

Switching
Non-Hazardous Switching
Panel / Equipment ID
B59 Cooling Towers 1-7
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
Notify the Control Room Turn off Cooling Tower at BMS Switch off Cooling Tower VFD Hang Group LOTO lock and tag at VFD Challenge LOTO by trying to restart Cooling Tower Hand Group LOTO lock and tag at Fan Shaft lock out device Challenge LOTO by trying to spin fan by hand Place both keys in LOTO lock box Hang RI lock and tag on lock box Give LOTO briefing to HVAC Controls electricians Have HVAC Controls electricians hang LOTO lock and tag Allow HVAC Controls to begin installing float sensors in Cooling Towers When work is complete, notify the Control Room Release Group LOTO Switch Cooling Tower VFD on Turn on Cooling Tower at BMS Work is complete

Control of Work Area

Minimum Approach Boundary
42"
Barricade Tape / Attendant
Warning - Orange

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
1.01 cal/cm2
Arc Flash Boundary
16"
Working Distance
No Arc Flash Hazard Present
Arc Flash PPE Level
1
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
Mechanical Level office container
Emergency Number to Call
911
Sufficient Cell Phone Signal
Yes
Clear Exit Path
Yes
AED Location
Mechanical Level office container
Fire Extinguisher Location
South Mechanical Level door
Contact Release Method Available and Tested
Upstream breaker or switch, Rescue hook

Environmental Conditions

Does the environment present additional hazards that should be addressed?
Lookalike equipment

Error Precursors

Task Demands
Work Environment
Individual Capabilities
Human Nature
Error Precursor Mitigations
Look alike equipment...verify switching with crew before switching power at VFDs

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

NA

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