electrical theory

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Across
  1. 4. calculate energy used in residential home
  2. 5. mechanical switch for control of one light
  3. 6. steps us or steps down voltage
  4. 8. breaker protects circuits and equipment from over current
  5. 9. sends power out to circuits
  6. 12. plastic conduit
  7. 13. arc fault circuit interrupter
  8. 14. electrical metallic tubing
  9. 15. useful box for one device
Down
  1. 1. returns unused power back to the panel
  2. 2. stores electrical charge
  3. 3. feeder wire for all circuits
  4. 6. conductor type used in romex
  5. 7. mechanically bonds and grounds all devices
  6. 9. underground feeder
  7. 10. ground fault circuit interrupter
  8. 11. receptacle an outlet of power