Time / Date: 10/12/2022 9:25:56
JSP ID: 82
Scope of Work: 1.Making VENUS chamber electrically safe so NSD and Mechanical team can do repairs. 2. 28GHz Gyrotron water alarm troubleshooting. 28GHz gyrotron is not going to be under LOTO although it is part of E6A-1 VENUS LOTO but it needs energized troubleshooting as there are no alarms when power off. To make it safe the output waveguide of gyrotron is disconnected from VENUS chamber and coupled with 10KW water-cooled RF load. RF waveguide to VENUS side is caped and also under LOTO so if VENUS is running there should be no RF leak from 18GHz source to this side and LOTO prevents someone accidently connecting 28GHz source back to VENUS. If needed Mark Regis is going to do some mode 2 work on gyrotron cabinet with exposure to 120VAC.
Work Order:
Building:
Person in Charge: Taimoor Hassan
Lead / Supervisor: Other
Logged Email: hassan@lbl.gov
Division: Facilities
QEW Level: QEW 2
Modes of Work: Mode 0 - Electrically Safe Work Condition, Mode 1 - LOTO & Zero Voltage Verification, Mode 2 - Energized Diagnostics, Testing and Troubleshooting, Visual Inspection
Second Person Requirement: Standby Person
Second Person Identified: Mark Regis
List Other Participants:
Affected Persons Notified:
Switching: Hazardous Switching
Panel / Equipment ID: 81A9C1A1A
System Information Review: Single Line Drawing, Arc Flash Labels
Control of Hazardous Energy: Complex LOTO (requires LP, CLP, FLP)
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.

Control of Work Area

Minimum Approach Boundary: 60
Barricade Tape / Attendant: Attendant

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: 0
Will any other part of the body enter the RAB: No

Arc Flash Risk Assessment

Incident Energy: 8.23 cal/cm2
Arc Flash Boundary: 60
Working Distance: 18 inches
Arc Flash PPE Level: 2
Incident Energy Reduction Measures: 0

Capacitor Hazards

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

Emergency Response Plan

Nearest Landline Location: VENUS control area
Emergency Number to Call: 5104866999
Sufficient cell phone signal? Yes
Clear exit path? Yes
AED Location: 88 entrance
Fire Extinguisher Location: under south stair
Contact release method available and tested: Voltage gloves

Environmental Conditions

Does the environment present additional hazards that should be addressed?

None

Error Precursors

Task Demands:
Work Environment: Changes/departures from routine
Individual Capabilities:
Human Nature:
Error Precursor Mitigations:

Yes

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