D NEC 406.4 and 200.11 Receptacle outlets shall be of the grounding type, be effectively grounded, and
have proper polarity.
D NEC 210.52 Generally, receptacle outlets in habitable rooms shall be installed so that no point measured
horizontally along the floor line in any wall space is more than 1.8 m [6'] from a receptacle outlet. A
receptacle shall be installed in each wall space 2 feet or more in width.
D NEC 210.52 At kitchen countertops, receptacle outlets shall be installed so that no point along the wall line
is more than 600 mm [24"] measured horizontally from a receptacle outlet in that space.
D NEC 210.52 A receptacle outlet shall be installed at each counter space 300 mm [12"] or wider, and at each
island counter or peninsular space 600 mm [24"] by 300 mm [12"] or larger. Countertop spaces separated
by, range tops, sinks or refrigerators are separate spaces
D NEC 210.52 Outdoor receptacles, accessible at grade level and no more than 2 m [6.5'] above grade, shall
be installed at the front and back of a dwelling.
Arc-Fault (AFCI) Protection
D NEC 210.12 All branch circuits supplying 125-volt, 15 and 20-ampere outlets in dwelling units, except in
garages and bathrooms shall be protected by a listed arc-fault circuit interrupter device. Generally, these
are circuit breaker type devices and cannot be installed on multi-wire branch circuits. All AFCIs shall be
readily accessible (capable of being reached quickly without use of tools, climbing over or removing
obstacles, or using portable ladders).
Ground-Fault (GFCI) Protection
D NEC 210.8 At dwellings, ground-fault circuit-interrupter (GFCI) protection shall be provided for the kitchen
dishwasher branch circuit and for all receptacle outlets in bathrooms, garages, crawl spaces, unfinished
basements, kitchen countertops, laundry areas, boathouses, outdoors and within 6 feet of sinks, bathtubs,
and shower stalls. All GFCIs shall be readily accessible.
D NEC 680.71 A hydromassage bathtub, (defined as a permanently installed bathtub with a re-circulating
piping system, designed to discharge water upon each use, and its associated components] shall have
ground-fault circuit-interrupter protection. All 125 volt receptacles not exceeding 30 amperes installed within
6 feet of the inside walls of the hydromassage bathtub shall be GFCI protected. All equipment associated
with a hydromassage bathtub shall be accessible without damaging the building structure or finish.
Wiring Methods
D NEC 314.27 When boxes are used as the sole support for a ceiling paddle fan, they shall be listed and
labeled for such use.
D NEC 334.30 Type NM (nonmetallic) cable shall be secured at intervals not exceeding 1.4 m [4.5'] and within
300 mm [12"] of each box.
D NEC 314.17 The outer jacket of NM cable shall extend into the box a minimum of ¼ inch.
D NEC 300.14 The minimum length of conductors, including grounding conductors, at all boxes shall be 150
mm [6"]. At least 75 mm [3"] shall extend outside the box.
D NEC 300.4 Where cables are installed through bored holes in joists, rafters, or wood framing members, the
holes shall be bored so that the edge of the hole is not less than 1¼ inch from the nearest edge of the wood
member. Where this distance cannot be maintained, or where screws or nails are likely to penetrate the
cable, it shall be protected by a steel plate at least 1.6 mm [1/16"] thick and of appropriate length and width.
D NEC 250.134; 314.4; 404.9 All electrical equipment, metal boxes, cover plates, and plaster rings shall be
grounded. All switches, including dimmer switches, shall be grounded.
D NEC 110.12 & 314.17 Unused openings in boxes shall be effectively closed. When openings in non-metallic
boxes are broken out and not used, the entire box must be replaced.
D NEC 314.29 Junction boxes shall be installed so that the wiring contained in them can be rendered
accessible without removing any part of the building.
D NEC 410.16 Luminaires (lighting fixtures) installed in clothes closets shall have the following minimum
clearances from the defined storage area (see NEC 410.2 for definition):
300 mm [12"] for surface incandescent or LED fixtures with completely enclosed light source installed
on wall above door or on the ceiling.
150 mm [6"] for recessed incandescent or LED fixtures
150 mm [6"] for fluorescent fixtures