QEW 1 / 2 / 3 Job Safety Plan

Time / Date: 10/3/2024 14:05:38

JSP ID: 2990

Scope of Work: To produce electrical safe condition to perform maintenance on the VENUS Ion Source chamber, puller electrode and waveguide assembly.

Work Order: N/A

Building: 88

Person in Charge: Brendan Ford

Lead / Supervisor: Other

Logged Email: bpford@lbl.gov

Division: Other

QEW Level: QEW 2

Modes of Work: Mode 0 - Electrically Safe Work Condition

Second Person Requirement: Not Required

Second Person Identified: N/A

List Other Participants:

Affected Persons Notified: Yes

Switching: Hazardous Switching

Panel / Equipment ID: VENUS Ion Source

System Information Review: VENUS Ion Source Chamber & Puller Access Equipment Specific LOTO E6A-1

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

List basic sequence of steps from start to finish.

-Perform briefing to all LOTO Affected Persons. -Notify Source Operator of intent to apply VENUS Ion Source Chamber & Puller Access LOTO. -Equipment Shutdown: -Have the source operator perform a normal shutdown of the VENUS Ion Source. -Verify VENUS Ion Source is off.. -High-voltage is OFF at VENUS PLC. -28 GHz Gyrotron is OFF at VENUS PLC, OFF at 28 GHz panel. -2X 18 GHz Klystrons are OFF at VENUS PLC, OFF at 18 GHz panel V04. -Hot Rack is OFF. -Note: Verification in following steps is performed at VENUS PLC Menu K2, soft key F6, F7. -Magnet power supplies are OFF. -Magnet currents have gone to ZERO. -40kV 30mA Extraction HVPS U610 Power Plug (Lockout 320) **Turn-on Test -25kV 20mA Puller HVPS U0613 Power Plug (Lockout 320) **Turn-on Test -5kV 24mA Sputter Probe HVPS U07 Sputter Probe PS Power Plug **Turn-on Test -1kV 60mA Bias Disk PS U07 Bias Disk PS Power Plug **PS Output U0718 -RF(CPI 28GHz Xmtr.Main Pwr.) 80A4A6A CB-15 (480VAC, 125A) **Turn-on Test -RF(2X CPI 18GHz Xmtr. Main Pwr.) V04 CB1and CB2 (208V, 30A) **Turn-on Test -Apply ground hook to VENUS chamber. -Apply ground hook to Hot Rack. -Apply ground hook to Puller, if exposed. -Turn off cooling water, as needed.

Minimum Approach Boundary: 60 inches

Barricade Tape / Attendant:

System Voltage: 40kV 30mA, 25kV 20mA, 5kV 24mA, 1kV 60mA, RF 28GHz, 2X RF 18GHz.

Limited Approach Boundary: 96 inches

Restricted Approach Boundary: 33 inches

Will the hands enter the RAB: Yes

Voltage Glove Class: 0

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

Incident Energy: 5.3 cal/cm2 cal/cm2

Arc Flash Boundary: 41 inches

Working Distance: 18 inches

Arc Flash PPE Level: 2

Incident Energy Reduction Measures: 0

Capacitor Bus Voltage: N/A

Capacitor total stored energy (joules): N/A

Discharge wait time (minutes): N/A

Does the environment present additional hazards that should be addressed?

Confined area around panel 80A4A6A.

Task Demands:

Work Environment:

Individual Capabilities:

Human Nature:

Error Precursor Mitigations:

N/A

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

Requirements: Qualified electrical worker (QEW2) trained for testing, switching, and trained in LBNL LOTO , trained in 88” specific LOTO (88-OPS-PRO-017), and authorized.

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

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Rev 2023.08.22.1
Form Content and Feedback Contact: Michael Rose -- mvr@lbl.gov