2020 NEC Article 100

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Across
  1. 1. Electrically connected to, or is, a source of voltage
  2. 7. An accessory such as a locknut, bushing, or other part of a wiring system that is intended primarily to perform a mechanical rather than an electrical function
  3. 8. Any current in excess of the rated current of equipment or the ampacity of a conductor. It may result from overload, short circuit, or ground fault
  4. 9. Circuit Interrupter, A device intended to provide protection from the effects of arc faults by recognizing characteristics unique to arcing and by functioning to de-energize the circuit when an arc fault is detected
  5. 11. Equipment that changes dc to ac
  6. 16. Person, One who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training to recognize and avoid the hazards involved
  7. 17. Voltage, A nominal value assigned to a circuit or system for the purpose of conveniently designating its voltage class
  8. 21. Constructed so that moisture will not enter the enclosure under specified test conditions
  9. 22. Rating, The highest current at rated voltage that a device is identified to interrupt under standard test conditions
  10. 26. Not connected to ground or to a conductive body that extends the ground connection.
  11. 28. Location, Installations underground or in concrete slabs or masonry in direct contact with the earth; in locations subject to saturation with water or other liquids, such as vehicle washing areas; and in unprotected locations exposed to weather
  12. 30. An overcurrent protective device with a circuit-opening fusible part that is heated and severed by the passage of overcurrent through it
  13. 34. A contact device installed at the outlet for the connection of an attachment plug, or for the direct connection of electrical utilization equipment designed to mate with the corresponding contact device. A single receptacle is a single contact device with no other contact device on the same yoke or strap. A multiple receptacle is two or more contact devices on the same yoke or strap
  14. 36. Equipment, materials, or services included in a list published by an organization that is acceptable to the authority having jurisdiction and concerned with evaluation of products or services, that maintains periodic inspection of production of listed equipment or materials or periodic evaluation of services, and whose listing states that either the equipment, material, or service meets appropriate designated standards or has been tested and found suitable for a specified purpose.
  15. 38. Circuit, The circuit conductors between the final overcurrent device protecting the circuit and the outlet
  16. 39. Surrounded by a case, housing, fence, or wall(s) that prevents persons from accidentally contacting energized parts
  17. 40. Drop, The overhead conductors between the serving utility and the service point
  18. 41. A complete lighting unit consisting of a light source such as a lamp or lamps, together with the parts designed to position the light source and connect it to the power supply. It may also include parts to protect the light source or the ballast or to distribute the light.
  19. 42. Operation of equipment in excess of normal, full-load rating, or of a conductor in excess of its 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
  20. 44. A unit of an electrical system, other than a conductor, that carries or controls electric energy as its principal function
  21. 45. An enclosure that is designed for either surface mounting or flush mounting and is provided with a frame, mat, or trim in which a swinging door or doors are or can be hung
  22. 46. A point on the wiring system at which current is taken to supply utilization equipment
Down
  1. 2. Circuit Interrupter A device intended for the protection of personnel that functions to de-energize a circuit or portion thereof within an established period of time when a ground-fault current exceeds the values established for a Class A device
  2. 3. Acceptable to the authority having jurisdiction
  3. 4. The maximum current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating
  4. 5. Conductor, The conductor connected to the neutral point of a system that is intended to carry current under normal conditions
  5. 6. Rendered inaccessible by the structure or finish of the building
  6. 10. Outlet, An outlet intended for the direct connection of a lampholder or luminaire
  7. 12. Unit, A single unit, providing complete and independent living facilities for one or more persons, including permanent provisions for living, sleeping, cooking, and sanitation
  8. 13. Equipment, Equipment that utilizes electric energy for electronic, electromechanical, chemical, heating, lighting, or similar purposes.
  9. 14. The earth
  10. 15. Load, A load where the maximum current is expected to continue for 3 hours or more
  11. 18. An enclosed channel designed expressly for holding wires, cables, or busbars, with additional functions as permitted in this Code
  12. 19. Location, A location not normally subject to dampness or wetness. A location classified as dry may be temporarily subject to dampness or wetness, as in the case of a building under construction
  13. 20. Current, The current delivered at a point on the system during a short-circuit condition
  14. 23. A single panel or group of panel units designed for assembly in the form of a single panel, including buses and automatic overcurrent devices, and equipped with or without switches for the control of light, heat, or power circuits; designed to be placed in a cabinet or cutout box placed in or against a wall, partition, or other support; and accessible only from the front
  15. 24. Sight From, Where this Code specifies that one equipment shall be “in sight from,” “within sight from,” or “within sight of,” and so forth, another equipment, the specified equipment is to be visible and not more than 15 m (50 ft) distant from the other
  16. 25. 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
  17. 27. The case or housing of apparatus, or the fence or walls surrounding an installation to prevent personnel from accidentally contacting energized parts or to protect the equipment from physical damage
  18. 29. The conductors and equipment connecting the serving utility to the wiring system of the premises served
  19. 31. Equipment or materials to which has been attached a label, symbol, or other identifying mark of an organization that is acceptable to the authority having jurisdiction and concerned with product evaluation, that maintains periodic inspection of production of labeled equipment or materials, and by whose labeling the manufacturer indicates compliance with appropriate standards or performance in a specified manner
  20. 32. Lighting, A string of outdoor lights that is suspended between two points
  21. 33. Fault, 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
  22. 35. A compartment or chamber to which one or more air ducts are connected and that forms part of the air distribution system
  23. 36. Parts, Energized conductive components
  24. 37. Equipment, The necessary equipment, consisting of a circuit breaker(s) or switch(es) and fuse(s) and their accessories, connected to the serving utility and intended to constitute the main control and disconnect of the serving utility.
  25. 43. Location, Locations protected from weather and not subject to saturation with water or other liquids but subject to moderate degrees of moisture