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Work Order and Safety Procedures
Work Order and Safety Procedures
Work Order Creation and System Navigation
The user creates a work order in Maximo, ensuring all details are correct.
The system used might involve CWEI or CWE, but processing can take up to two hours.
After creating the work order, the user navigates to iRamp to proceed.
Clearance Process
Initial clearance status shows "NNN," indicating no clearance is established.
The user initiates clearance by creating an ad hoc clearance.
The user inputs their initials (TLU - Torben Leif Olsen) to identify the clearance request.
The hazard is identified as electrical.
Isolation Device
The pump breaker in the AC cabinet is selected as the isolation device.
Inverter Safety and Grounding
A complex explanation regarding inverters and grounding is provided.
The AC cabinet has a high calorie rating (100 cal), requiring special considerations.
Shutting down the transformer necessitates grounding if it's used as an isolation device.
A form from the electrical safety team dictates when grounding is necessary.
If the transformer is only shut down to access the AC cabinet and the breaker is the isolation point, grounding may not be required.
Grounding is mandatory if working on main reactors or AC breakers.
Maintenance Mode vs. Manual Mode
Maintenance mode radically lowers voltage limits and increases trip speed in the substation to lower arc flash potential.
Maintenance mode is controlled from the substation.
Manual mode
is different and comes from
SCADA
, signaling that someone is working on the equipment and should not be touched remotely.
A widespread misconception exists regarding maintenance mode.
Maintenance mode stickers have been removed in some locations due to the confusion and elimination of maintenance modes in certain substations.
It's crucial to differentiate between maintenance mode and manual mode.
Manual mode informs the ROCC (Remote Operations Control Center) not to interfere with the equipment.
Practical Steps Despite Manual Mode
Even in manual mode, workers still need to physically turn off and lock out equipment to prevent remote overrides.
Additional Isolation Steps
DC breakers are also isolated to access cabinets for leak verification, specifically the phase module cabinet.
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chapter 3: a&p (cells)
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Chapter 6: Chemical reactions
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Studied by 8 people
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Studied by 12 people
5.0
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Big Idea 4: Computer Systems and Networks
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Studied by 12271 people
4.6
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Western Classical Tradition from 1910
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Studied by 13 people
5.0
(1)
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Studied by 5 people
5.0
(1)