Chapter 3 Key Terms

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Across
  1. 2. An ___ bonding termination shall be used as a grounding electrode in communication systems.
  2. 5. A ground-fault circuit ___ provides a disconnect means at the power receptacle by monitoring the differential current traveling along the ungrounded and grounded power conductors.
  3. 10. The ___ provides the conductive path(s) to connect the normally non-current-carrying metallic parts of equipment together.
  4. 12. The ___, neutral, is an electrical system or circuit conductor that is intentionally grounded.
  5. 16. Another term for ground.
  6. 17. A ___ is indicated on a schematic where the electronic signal ground, or circuit common, of the equipment and the earth ground of the electrical system are attached to the outer metal enclosure of the equipment.
  7. 20. The main purpose of ___ electrical systems is to create a low-impedance pathway back to the service panel and the main power source to the building for the purpose of clearing a ground fault; this is commonly referred to as an effective ground-fault current path.
Down
  1. 1. The ___ electrode is used to help lower the total resistance into the earth by providing additional discharge paths for lightning.
  2. 3. The grounding ___ system is a system of interconnected electrodes at a building or structure that is used to provide a connection to the earth for the purposes of grounding an electrical system.
  3. 4. The ___ is a conducting object used to establish direct contact to the earth for the purpose of dissipating electrical surge currents and charges from lightning strikes.
  4. 6. Bonding ensures that a ground fault has an ___ ground-fault current path, which is a low-impedance pathway back to the main service panel, through all exposed metal in the building and the EGCs.
  5. 7. The circuit ___ is a common point in an electrical circuit from which voltage measurements are taken.
  6. 8. The ___ connects the system Neutral or grounded conductor (white or gray colored) and the equipment (exposed metal) to a grounding electrode or to a point on the grounding electrode system.
  7. 9. The ___ conductor is not connected to ground and is referred to as the hot power line, which provides current to the load.
  8. 11. A ___ is an accidental or unintentional electrical connection between an ungrounded, hot conductor and the normally non-current-carrying conductors (EGC), metallic enclosures, metallic raceways, metallic equipment, or any other exposed metal within a building or structure.
  9. 13. All electrical systems that are ___ shall be connected to earth in a manner that limits the voltage imposed by lightning, line surges, or unintentional contact with higher-voltage lines, and stabilizes the voltage to earth during normal operation.
  10. 14. Connection of ___ conductors or grounding electrode conductors to the grounding electrode shall be made by exothermic weld, listed lugs, listed pressure connections, listed clamps, or other listed means.
  11. 15. The NEC defines the term ___ as "the earth".
  12. 18. According to the NEC, the term ___ means "the earth".
  13. 19. To be ___ grounded means that a connection to ground is made directly, without inserting an intermediary resistance or impedance into the connecting path.