PDX DCEO Qualification Card

What voltage is the bus bar for the Who Made Who Rack/WAIPOUA/YELM/OPAL?

12VDC

Where do the two sources come from for a rack ATS?

Utility & Catcher

Where do you find your PDT rack count?

PDT AHA but you need logical access. DCO can typically help as they usually have logical access.

Where is the EPMS server located?

Site Specific. Refer to controls wiki system information tab.

Whose permission is required to replace an ATS?

If it is a Sev2 scenario, then permission to replace an ATS is automatically granted in the event that not replacing the ATS will continue to impact customers.

Otherwise; on-call manager, CE, FM (or higher).

Describe what an arc flash is?

An arc flash is the intense light and heat produced by an electrical arc.

This violent release of energy at extreme temperatures can be a source of damage to equipment, personnel injury, and/or death.

Describe what forms of energy are we concerned about for LOTO?

Any form of hazardous energy. Electrical, Hydraulic, Kinetic, etc.

Explain at what point is arc flash an issue?

Anytime you break the plane of exposure within a piece of gear or remove a protection measure (like a deadfront panel) with intentions of working on the gear.

Explain how to inspect Insulating gloves?

Air test before each days use. Check for pin holes, cracking, cuts, contaminant or embedded wire.

Explain how to perform a dead check (Live-Dead-Live)?

Test multi-meter on a known good source, check equipment to be serviced, recheck multi-meter on known good source. Try and start equipment

Explain how you would find out what potential the arc flash could be?

Coordination study, tag on the front of the equipment

Explain the importance of wearing leather protectors over your rubber gloves.

Provides protection of electrical insulation equipment against cuts, rips, nicks, etc...

Explain the lock out tag out (LOTO) procedure and discuss why it is needed.

Shutdown equipment, isolate from all types of energy and apply lockout/tagout, release stored energy and verify state (drain/depressurize/deenergize), verify isolation/lockout, perform work, verify equipment is safe to restore, remove lockout/tagout, restore equipment to usual state.

Explain what a limited approach boundary is?

For use with Arc Flash boundaries. No unqualified persons may enter this area unless escorted by a qualified person with the understanding of the hazards present.

Explain what a restricted approach boundary is?

No qualified person shall enter the restricted approach boundary unless they are in PPE. Requires EEWP.

Explain what an Arc Flash Boundary is?

The distance at which the incident energy equals 1.2 cal. May not enter the arc flash boundary unless trained on the hazards and wearing the required PPE.

Explain what SDS is and where to find it?

Safety Data Sheet.

Explain what the concern is with ARC Flash/blast?

Explosive force behind it and how it could kill or severely hurt someone.

Explain what the difference is between arc flash PPE and electrical shock PPE?

Arc flash PPE is arc rated but is not rated for electrical shock protection (i.e. 40 cal suit) 

Electrical shock protection is based on electrical insulation properties and is rated by the voltage level it protects against (i.e. Class 0 rated rubber gloves good up to 1000 volts).

Explain what the hierarchy of control is?

Least effective to most effective. PPE, admin controls, awareness, engineering controls, substitution, elimination