PEC Chapter 4 (Sheet1-Part3)

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Author:
Camskie
ID:
306422
Filename:
PEC Chapter 4 (Sheet1-Part3)
Updated:
2015-08-15 11:47:55
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camille chapterfour
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Chapter 4
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  1. (Cord-Connected Showcases) Receptacles, connectors, and attachment plugs shall be of a listed grounding type rated __ or __ amperes
    • 15
    • 20
  2. (Cord-Connected Showcases)Flexible cords shall be secured to the undersides of showcases such that all of the following conditions are ensured:

    (1) The wiring is not exposed to mechanical damage.

    (2) The separation between cases is not in excess of __ mm, or more than __ mm between the first case and the supply receptacle.

    (3) The free lead at the end of a group of showcases has a female fitting not extending beyond the case
    • 50
    • 300
  3. (Cord-Connected Lampholders and Luminaires (Fixtures))

    Where a metal lampholder is attached to a flexible cord, the inlet shall be equipped with an insulating bushing that, if threaded, is not smaller than raceway size __mm  pipe size. The cord hole shall be of a size appropriate for the cord, and all burrs and fins shall be removed in order to provide a smooth bearing surface for the cord. Bushing having holes __ mm in diameter shall be permitted for use with plain pendant cord and holes __ mm in diameter with reinforced cord
    • 10
    • 7
    • 11
  4. Electric-Discharge Luminaires (Fixtures) Screw-Shell Lampholders.

    Electric-discharge luminaires (lighting fixtures) provided with mogulbase, screw-shell lampholders shall be permitted to be connected to branch circuits of __ amperes or less by cords complying with 2.40.1.5. Receptacles and attachment plugs shall be permitted to be of a lower ampere rating than the branch circuit but not less than __ percent of the luminaire (fixture) full-load current
    • 50
    • 125
  5. Electric-Discharge Luminaires (Fixtures) Screw-Shell Lampholders

    Electric-discharge luminaires (lighting fixtures) equipped with a flanged surface inlet shall be permitted to be supplied by cord pendants equipped with cord connectors. Inlets and connectors shall be permitted to be of a lower ampere rating than the branch circuit but not less than __ percent of the luminaire (fixture) load current
    125
  6. Branch-circuit conductors within __ mm of a ballast shall have an insulation temperature rating not lower than __°C unless supplying a luminaire (fixture) listed and marked as suitable for a different insulation temperature
    • 75
    • 90
  7. All luminaires (fixtures) shall be marked with the maximum lamp wattage or electrical rating, manufacturer’s name, trademark, or other suitable means of identification. A luminaire (fixture) requiring supply wire rated higher than __°C shall be marked in letters not smaller than __ mm high, prominently displayed on the luminaire (fixture) and shipping carton or equivalent
    • 60
    • 6
  8. Tubing used for arms and stems where provided with cut threads shall not be less than __ mm in thickness and, where provided with rolled (pressed) threads, shall not be less than __ mm in thickness. Arms and other parts shall be fastened to prevent turning
    • 1.00
    • 0.65
  9. Metal canopies supporting lampholders, shades, and so forth exceeding __ kg, or incorporating attachment plug receptacles, shall not be less than __ mm in thickness. Other canopies shall not be less than __ mm if made of steel and not less than __ mm if of other metals
    • 4
    • 0.50
    • 0.40
    • 0.50
  10. Pull-type canopy switches shall not be inserted in the rims of metal canopies that are less than __ mm in thickness, unless the rims are reinforced by the turning of a bead or the equivalent. Pull-type canopy switches, whether mounted in the rims or elsewhere in sheet metal canopies, shall not be located more than __ mm from the center of the canopy
    • 0.65
    • 90
  11. Exposed live parts within porcelain luminaires (fixtures) shall be suitably recessed and located so as to make it improbable that wires come in contact with them. There shall be a spacing of at least __ mm between live parts and the mounting plane of the luminaire (fixture)
    13
  12. The outer metal shell and the cap shall be lined with insulating material that prevents the shell and cap from becoming a part of the circuit. The lining shall not extend beyond the metal shell more than __ mm but shall prevent any current carrying part of the lamp base from being exposed when a lamp is in the lampholding device
    3
  13. An incandescent lamp for general use on lighting branch circuits shall not be equipped with a medium base if rated over __watts, or with a mogul base if rated over __ watts.
    • 300
    • 1 500
  14. Special bases or other devices shall be used for over __watts
    1 500
  15. Luminaires (fixtures) shall be installed so that adjacent combustible material will not be subjected to temperatures in excess of __°C
    90
  16. Where a luminaire (fixture) is recessed in fire-resistant material in a building of fire-resistant construction, a temperature higher than __°C  but not higher than __°C  shall be considered acceptable if the luminaire (fixture) is plainly marked that it is listed for that service
    • 90
    • 150
  17. A recessed luminaire (fixture) that is not identified for contact with insulation shall have all recessed parts spaced not less than __ mm from combustible materials
    13
  18. Thermal insulation shall not be installed above a recessed luminaire (fixture) or with __ mm of the recessed luminaire's (fixture's) enclosure, wiring compartment, or ballast unless it is identified for contact with insulation, Type IC
    75
  19. Tap conductors of a type suitable for the temperature encountered shall be permitted to run from the luminaire(fixture) terminal connection to an outlet box placed at least __ mm from the luminaire (fixture). Such tap conductors shall be in suitable raceway or Type AC or MC cable of at least __ mm but not more than __ mm in length
    • 300
    • 450
    • 1 800
  20. Incandescent lamp luminaires (fixtures) shall be marked to indicate the maximum allowable wattage of lamps. The markings shall be permanently installed, in letters at least __ mm high, and shall be located where visible during relamping
    6
  21. Equipment for use with electric-discharge lighting systems and designed for an opencircuit voltage of ___ volts or less shall be of a type intended for such service
    1 000
  22. The terminals of an electric-discharge lamp shall be considered as energized where any lamp terminal is connected to a circuit of over __ volts. Transformers of the oil filled type shall not be used
    300
  23. (Special Provisions for Electric-Discharge Lighting Systems of 1 000 Volts or Less)

    Equipment having an open-circuit voltage exceeding __ volts shall not be installed in dwelling occupancies unless such equipment is designed so that there will be no exposed live parts when lamps are being inserted, are in place, or are being removed
    300
  24. Where a surface-mounted luminaire (fixture) containing a ballast is to be installed on combustible low-density cellulose fiberboard, it shall be listed for this condition or shall be spaced not less than __ mm from the surface of the fiberboard
    40
  25. FPN: Combustible low-density cellulose fiberboard includes sheets, panels, and tiles that have a density of __ kg/m3 (__ lb/ft3) or less and that are formed of bonded plant fiber material but does not include solid or laminated wood or fiberboard that has a density in excess of __ kg/m3 (__ lb/ft3) or is a material that has been integrally treated with fire-retarding chemicals to the degree that the flame spread in any plane of the material will not exceed __, determined in accordance with tests for surface burning characteristics of building materials
    • 320 kg/m3 (20 lb/ft3)
    • 320 kg/m3 (20 lb/ft3)
    • 25
  26. Wired luminaire (fixture) sections are paired, with a ballast(s) supplying a lamp or lamps in both. For interconnection between paired units, it shall be permissible to use raceway size __mm flexible metal conduit in lengths not exceeding __ mm, in conformance with Article 3.48
    • 10
    • 7 600
  27. An autotransformer that is used to raise the voltage to more than __ volts, as part of a ballast for supplying lighting units, shall be supplied only by a grounded system
    300
  28. Equipment that has an open-circuit voltage exceeding ___ volts shall not be installed in or on dwelling occupancies. The terminal of an electric-discharge lamp shall be considered as a live part
    1 000
  29. Transformers. 
    The secondary-circuit voltage shall not exceed __ volts, nominal, under any load condition
    15 000
  30. The voltage to ground of any output terminals of the secondary circuit shall not exceed __ volts, under any load conditions
    7 500
  31. Transformers shall have a secondary short-circuit current rating of not more than __ mA if the open-circuit voltage is over __ volts, and not more than __ mA if the open-circuit voltage rating is __ volts or less. Transformers shall be located so that adjacent combustible materials are not subjected to temperatures in excess of __°C
    • 150
    • 7 500
    • 300
    • 7 500
    • 90
  32. Each luminaire (fixture) or each secondary circuit of tubing having an open-circuit voltage of over __ volts shall have a clearly legible marking in letters not less than __ mm high reading “Caution ____ volts.” The voltage indicated shall be the rated opencircuit voltage
    • 1 000
    • 6
  33. _____ is a manufactured assembly designed to support and energize luminaires (lighting fixtures) that are capable of being readily repositioned on the track. Its length can be altered by the addition or subtraction of sections of track
    Lighting Track
  34. Lighting track shall not be installed Less than __ mm above the finished floor except where protected from physical damage or track operating at less than __ volts rms open-circuit voltage.
    • 1 500
    • 30
  35. Heavy-duty lighting track is lighting track identified for use exceeding __ amperes
    20
  36. Unless identified for supports at greater intervals, a single section __ mm or shorter in length shall have two supports, and, where installed in a continuous row, each individual section of not more than __ mm in length shall have one additional support.
    • 1 200
    • 1 200
  37. The track conductors shall be a minimum __ mm2 (__ mm dia.) or equal and shall be copper
    3.5 mm2 (2.0 mm dia.)
  38. ____ is a lighting system consisting of an isolating power supply operating at 30 volts (42.4 volts peak) or less under any load condition, with one or more secondary circuits, each limited to 25 amperes maximum, supplying luminaires (lighting fixtures) and associated equipment identified for the use
    Lighting System Operating At 30V Or Less
  39. Bare conductors shall not be installed less than __ mm above the finished floor, unless specifically listed for a lower installation height
    2 100
  40. Lighting systems operating at __ volts or less shall be supplied from a maximum __-ampere branch circuit
    • 30
    • 20

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