Time / Date: 9/6/2023 13:22:07
JSP ID: 1506
Scope of Work: TTS technician adjusting airflow inside bio-safety cabinet.
Work Order: N/A
Building: Potter facility, rm.192-C
Person in Charge: FELIPE SANCHEZ
Lead / Supervisor: Other
Logged Email: fbsanchez@lbl.gov
Division: Other
QEW Level: QEW 1
Modes of Work: Mode 2 - Energized Diagnostics, Testing and Troubleshooting, Visual Inspection
Second Person Requirement: Not Required
Second Person Identified: N/A
List Other Participants: Julie Zhu
Affected Persons Notified: N/A
Switching: Non-Hazardous Switching
Panel / Equipment ID: LBNL code # 6218176
System Information Review: LBNL survey record and TSS labels
Control of Hazardous Energy: LOTO Not Required (Mode 2 or 3 only)
Equipment Condition: Properly installed

Sequence of Job Steps

List basic sequence of steps from start to finish.

Technician is checking and confirmed that the airflow value is too high. He mentioned about damper adjustment for the bio-safety cabinet. He was able to fix and set the target value inside the cabinet at 78 feet per minute (values between 74 fpm and 85 fpm). Tested this airflow values using his test instrument and adjusting the potentiometer inside the front panel until desired value was attained. Input voltage tested at 115Vac.

Control of Work Area

Minimum Approach Boundary: N/A
Barricade Tape / Attendant: Attendant

Shock Risk Assessment

System Voltage: 120 Vac
Limited Approach Boundary: 42 inches
Restricted Approach Boundary: 3 feet, 6 inches
Will the hands enter the RAB: Yes
Voltage Glove Class: 00
Will any other part of the body enter the RAB: No

Arc Flash Risk Assessment

Incident Energy: N/A cal/cm2
Arc Flash Boundary: N/A
Working Distance: 36 inches
Arc Flash PPE Level: Minimum PPE for Electrical Work
Incident Energy Reduction Measures: 00

Capacitor Hazards

Capacitor Bus Voltage: N/A
Capacitor total stored energy (joules): N/A
Discharge wait time (minutes): N/A

Emergency Response Plan

Nearest Landline Location: Located outside of laboratory room
Emergency Number to Call: 510 486-6999
Sufficient cell phone signal? Yes
Clear exit path? Yes
AED Location: Outside of room
Fire Extinguisher Location: Located inside test room
Contact release method available and tested: Voltage gloves

Environmental Conditions

Does the environment present additional hazards that should be addressed?

Insufficient lighting, Noisy environment

Error Precursors

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

N/A

PPE Inspections

Safety glasses (ANSI Z87),
Arc-rated clothing (flash suit,
daily wear) including face shield,
balaclava,
hood.,
Rubber insulating gloves and leather protectors,
Non-melting footwear that fully covers the feet,
Insulated tools

Notes / Other

N/A

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