Time / Date: 10/19/2022 8:26:42
JSP ID: 114
Scope of Work: Troubleshoot ground fault for 37-VFD-022
Work Order: W0300010
Building:
Person in Charge: Andrew Southward
Lead / Supervisor: Cameron, Benjamin
Logged Email: amsouthward@lbl.gov
Division: Facilities
QEW Level: QEW 2
Modes of Work: Mode 2 - Energized Diagnostics, Testing and Troubleshooting, Visual Inspection
Second Person Requirement: Safety Watch
Second Person Identified: Ben Cameron
List Other Participants: Ben Cameron
Affected Persons Notified: Yes
Switching: Hazardous Switching
Panel / Equipment ID: 218A4A-10
System Information Review: Panel Schedules, Arc Flash Labels
Control of Hazardous Energy: Simple LOTO
Equipment Condition: Properly installed, 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.

Power down VFD, expose motor feeder cables in VFD cabinet, megger cables and motor, close up cabinet.

Control of Work Area

Minimum Approach Boundary: 49 @ panel, 42 @ VFD
Barricade Tape / Attendant: Danger

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: Yes
Voltage Glove Class: 0
Will any other part of the body enter the RAB: No

Arc Flash Risk Assessment

Incident Energy: .27 at VFD disconnect, 7.41 at panel cal/cm2
Arc Flash Boundary: 49 inches at panel. 7 inches at VFD disconnect
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: Next to VFD
Emergency Number to Call: 911
Sufficient cell phone signal? Yes
Clear exit path? Yes
AED Location: On hand
Fire Extinguisher Location: Machine room
Contact release method available and tested: Upstream breaker or switch, Voltage gloves

Environmental Conditions

Does the environment present additional hazards that should be addressed?

Noisy environment

Error Precursors

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

None

PPE Inspections

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