PEC Chapter1

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PEC Chapter1
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2015-06-16 21:26:38
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PEC Chapter 1
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  1. ___ of this code are those that identify actions that are specifically required or
    prohibited and are characterized by the use of the terms shall or shall not.
    Mandatory Rules
  2. ____ of this code are those that identify actions that are allowed but not required,
    are normally used to describe options or alternative methods, and are
    characterized by the use of the terms shall be permitted or shall not be
    required.
    Permissive Rules
  3. ___  such as references to related sections of this code, or information related to a code rule, is included in this code in the
    form of fine print notes (FPN).
    Explanatory Material
  4. ____ are informational only and are not enforceable as requirements of this code.
    Fine Print Notes
  5. Metric Units of Measurement. For the purpose of this code, metric units of
    measurement are in accordance with the modernized metric system known as the _____.
    International System of Units (SI).
  6. Conductor
    sizes are expressed in square millimetres (mm2) for stranded or in
    millimetres diameter (mm dia.) for ___.
    solid
  7. Terminals. Connection by means of wire-binding screws or
    studs and nuts that have upturned lugs or the equivalent shall be permitted for  ___ or
    smaller conductors.
    5.5mm2 (2.6 mm dia.)
  8. Termination
    provisions of equipment for circuits rated 100 amperes or less, or  marked for 2.0 mm2 (1.6 mm dia.)
    through 38 mm2 conductors, shall be used only for conductors rated ___.
    60°C
  9. Termination provisions of equipment for circuits
    rated over 100 amperes, or marked for conductors larger than 38 mm2,
    shall be used only for conductors rated ____.
    75°C
  10. Light and Power from Railway Conductors. Circuits for lighting and power shall not be
    connected to any system that contains ____ with a ground return.
    trolley wires
  11. Current Transformers. Unused current transformers associated with
    potentially energized circuits shall be ____.
    short-circuited
  12. 600V nominal or less.
    Dead-Front Assemblies. Where rear access is required to work on
    nonelectrical parts on the back of enclosed equipment, a minimum horizontal
    working space of ___mm shall be provided.
    750
  13. 600v, nominal, or less.
    Low voltage. By special permission, smaller working spaces
    shall be permitted where all exposed live parts operate at not greater than __
    volts rms, __ volts peak, or __ volts dc.
    30, 42, 60
  14. 600v nominal or less
    Width of Working Space. The width of the working space in front of the
    electric equipment shall be the width of the equipment or __mm, whichever is
    greater. In all cases, the work space shall permit at least a __ degree opening
    of equipment doors or hinged panels.
    750, 90
  15. 600v nominal or less
    Height of Working Space.  Within
    the height requirements of this section, other equipment that is associated
    with the electrical installation and is located above or below the electrical
    equipment shall be permitted to extend not more than ___mm beyond the front of
    the electrical equipment.
    150
  16. 600v nominal or less
    Entrance to Working Space.  (1) Minimum Required.  Atleast
    ___ entrance of sufficient area shall be provided to give access to working
    space about electrical equipment.
    one
  17. 600v nominal or less
    1.      
    (2) Large
    Equipment.  For equipment rated 1200
    amperes or more that contains overcurrent devices, switching devices, or
    control devices, there shall be one entrance to the required working space not less
    than ___ mm wide and ___ mm high at each end of the working space.
    600, 2000
  18. 600v nominal or less.
    Headroom.
    The minimum headroom of working spaces about service equipment,
    switchboards, panelboards, or motor control centers shall be ___mm. Where the
    electrical equipment exceeds ___mm in height, the minimum headroom shall not
    be less than the height of the equipment.
    2000, 2000
  19. 600v nominal or less.
    Headroom. Exception: In existing dwelling units, service
    equipment or panelboards that do not exceed ___ amperes shall be permitted in
    spaces where the headroom is less than 2000mm
    200
  20. 600v nominal or less
    Dedicated Electrical Space. The space equal to the width and depth of the
    equipment and extending from the floor to a height of ___m above the equipment
    or to the structural ceiling, whichever is lower, shall be dedicated to the
    electrical installation.
    1800
  21. 600v nominal or less
    Dedicated
    Electrical Space. Exception: Suspended ceilings with removable panels shall
    be permitted within the ___mm zone.
    1800
  22. over 600v nominal
    A
    fence shall not be less than ___mm in height or a combination of 1800mm or
    more of fence fabric and a 300mm or more extension utilizing three or more
    strands of barbed wire or equivalent
    2100
  23. over 600v nominal
    Fire Resistivity of Electrical Vaults. The floors of vaults in contact with the
    earth shall be of conrete that is not less than ___mm thick, but where the
    vault is constructed with a vacant space or other stories below it, the floor
    shall have adequate structural strength for the load imposed on it and a
    minimum fire resistance of __ hours.
    100, 3
  24. over 600v nominal
    Enclosed Equipment Accessible to Unqualified
    Persons. Where
    nonmetallic or metal-enclosed equipment is accessible to the general public and
    the bottom of the enclosure is less than ___mm above the floor or grade level,
    the enclosure door or hinged cover shall be kept locked.
    2400
  25. over 600v nominal
    Underground box covers that weigh over ___kg shall be considered as meeting this
    requirement.
    45.4
  26. over 600v nominal
    Work Space About Equipment. Where energized parts are exposed, the minimum
    clear work space shall not be less than ___mm high or less than ___mm wide
    (parallel to equipment). In all cases, the work space shall permit at least a
    ___ degree opening of doors or hinged panels.
    2000, 900, 90
  27. over 600v nominal
    (a) Entrance. At least one entrance not less than ___mm wide
    and ___mm high shall be provided to give access to the working space about
    electric equipment.
    600, 2000
  28. over 600v nominal
    Large Equipment. On switchboard and control panels exceeding
    ___mm in width, there shall be one entrance at each end of the equipment
    1800
  29. over 600v nominal
    Working Space. Exception: Where rear access is required to work
    on de-energized parts on the back of enclosed equipment, a minimum working
    space of ___mm horizontally shall be provided
    750
  30. over 600v nominal
    Temperature Limitations at Terminations.  Conductors
    shall be permitted to be terminated based on the __°C temperature rating.
    90
  31. over 600v nominal
    Grounded and Bonded. All non-current-carrying metal parts of electric
    equipment and all metal raceways and cable sheaths shall be effectively
    grounded and bonded to all metal pipes and rails at the portal and at intervals
    not exceeding ___m throughout the tunnel.
    300
  32. Cabling Work Space.  A clear
    work space not less than ___mm wide shall be provided where cables are located
    on both sides, not less than ___mm where cables are only on one side. The
    vertical headroom shall not be less than ___mm unless the opening is within
    ___mm, measured horizontally, of the adjacent interior side wall of the
    enclosure
    • 900, 750
    • 1800, 300
  33. Access to Manholes. (a) Dimensions. Rectangular access openings shall not be less
    than ___mm x ___mm. Round access 
    openings in a manhole shall not be less than ___mm in diameter.
    • 650, 550
    • 650
  34. Covers
    shall be over __ kg (__lb) or otherwise designed to require the use of tools
    to open
    45, 100
  35. Manhole
    covers shall have an identifying mark or logo that prominently indicates their
    function, such as ___.
    • "
    • electric"

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