Electrical

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Across
  1. 2. A system or circuit conductor that is intentionally grounded.
  2. 4. Anything which consumes electrical energy, such as lights, transformers, heaters and electric motors.
  3. 8. A ground fault is an unintentional, electrically conductive connection between an ungrounded conductor of an electrical circuit and the normally non–current-carrying conductors, metallic enclosures, metallic raceways, metallic equipment, or earth.
  4. 12. This is an electric current that reverses its direction many times a second at regular intervals.
  5. 13. All circuit conductors between the service equipment, the source of a separately derived system, or other power supply source and the final branch-circuit overcurrent device.
  6. 15. An electric current containing groups of parallel-connected receptive devices, the groups being arranged in the circuit in series; a series multiple circuit.
  7. 16. A fault in an electric circuit or apparatus due usually to imperfect insulation, such that the current follows a by-path and inflicts damage or is wasted.
  8. 17. An unintentional, electrically conductive connection between an ungrounded conductor of an electrical circuit and the normally non–current-carrying conductors, metallic enclosures, metallic raceways, metallic equipment, or earth.
  9. 18. also known as a power box or distribution pillar) is a cabinet used to house electrical equipment. fuse A circuit interrupting device consisting of a strip of wire that melts and breaks an electric circuit if the current exceeds a safe level.
Down
  1. 1. The reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the Earth.
  2. 3. current is an electric current that flows in only one direction.
  3. 5. Operation of equipment in excess of normal, full-load rating, or of a conductor in excess of rated ampacity that, when it persists for a sufficient length of time, would cause damage or dangerous overheating. A fault, such as a short circuit or ground fault, is not an overload.
  4. 6. Connected (connecting) to the ground or to a conductive body that extends the ground connection.
  5. 7. An electrical device that converts an alternating current into a direct one by allowing a current to flow through it in one direction only. There are both half wave rectifiers and full wave rectifiers.
  6. 9. Known more specifically as an electrical knockout set or knockout punch. A knockout punch is an electrician’s favorite tool for making new holes in an electrical box or panel. A knockout punch set gives you the choice of many different sizes of knockouts. Classic manual knockout punches are operated with a socket wrench.
  7. 10. The conductor connected to the neutral point of a system that is intended to carry current under normal conditions.
  8. 11. A circuit in which there is only one path for electricity to flow. All of the current in the circuit must flow through all of the loads completing its path to the source of supply.
  9. 14. A circuit in which there are multiple paths for electricity to flow. Each load connected in a separate path receives the full circuit voltage, and the total circuit current is equal to the sum of the individual branch currents.