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.

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.

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 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.

Even in manual mode, workers still need to physically turn off and lock out equipment to prevent remote overrides.

DC breakers are also isolated to access cabinets for leak verification, specifically the phase module cabinet.