3090 Week 2 Review

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Across
  1. 3. Power lines between the power plant ant a substation
  2. 6. Type of dust present in Class II Hazardous Locations
  3. 8. Type of ground used on a self-grounding receptacle
  4. 11. Number of hazardous locations
  5. 12. A ___ regulator maintains a constant output voltage on a line
  6. 13. Person that can complete an arc-flash analysis at a worksite, per NFPA 70E
  7. 15. Type of ventilation that could be use to reclassify a Class I Division 1 location to Division 2
Down
  1. 1. Minimum temperature needed to start self-sustained combustion of a material without an ignition source
  2. 2. Opening in a metal box
  3. 4. Most stringent category of PPE protection in NFPA 70E
  4. 5. Outermost shock protection approach boundary
  5. 7. A Circuit Breaker ___ allows for maintenance without de-energizing the whole circuit
  6. 9. Conductors that go into a customer's meter to supply power
  7. 10. Class I Hazardous Locations have ___ Gases and Vapors in enough concentration to be explosive
  8. 14. Power lines that come out of a substation to bring power to customers