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ELECTRICAL Rough Appliances Boxes

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27-28

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[NEC99'] {NEC 2002}
Building Code Reference!

Rough

Kitchen Circuits
Two 20-amp small-appliance circuits req'd ..[210-11c1] {210.11C1}
Countertop outlets--min. 2 small-appliance circuits .[210-52b1] {210.52B1}
No lighting {including under-counter] on these circuits
........................................................ [210-52b2] {210.52B1}
Counters =>12in. require receptacles . . . . . . . . . .[210-52c1] {210.52C1}
No point along counter >24in. from receptacle . . .F-e11 [210-52c1] {210.52C1}
Islands & peninsulas one receptacle per counter space
.....................................................[210-52c2,3] {210.52C2,3}
Island, peninsula, & disabled access receptacles allowed
on side of cabinet max 12in. below and no overhang >6in .
.................................................... .[210-52c5X] {210.52C5X}
GFCI protection for all countertop receptacles . . . . . . . . .[210-8a6] {210.8A6}
GFCI protect wet bar counter receptacle <=6ft. of sink .. .{210-8a7] {210.8A7}
Multiwire {3-wire 2x120V circuit] to top and bottom of
duplex receptacle requires handle tie on breaker . . . .[210-4b] {210.4B}
Primary light energy efficient {not incandescent] . . ..[energy] {energy}


Building Code Reference!

Appliances

Electric range--min. 40-amp wire {#8Cu #6Al] . . . . .[210-19c] {210.19A3}
Garbage disposer cord =>18in. and <=36 in. . . . .[422-16b1b] {422.16b1b}
Dishwasher/Compactor cords =>36in. and <=48 in. [422-16b2b] {422.16B2b
Garbage disposer/dishwasher circuits sharing
split duplex receptacle requires handle tie on breaker .. [210-4b] {210.4B}
Plugs of fixed appliances accessible . . . . . . . .. .[422-32a] {422.33}
[]Romex not suitable as flexible cord . . . . . . . . . . . . . . . . .[400-4] {400.4}

Building Code Reference!

Disconnecting Means

Appliance <=300VA or 8hp breaker can be disconnect .[422-31a] {422.31A}
Accessible cord/plug OK as disconnect . . . . . . . . . . . .[422-32a] {422.32A}
In-sight or lockable breaker or switch OK . . . . . . . . . . . [422-31b] {422.31B}
Unit switch that opens all hot conductors OK . . . . . . . . .[422-33] {422.33}

Building Code Reference!

Closet

No open incandescent bulb fixtures . . . . . . . . .F-e12 [410-8c] {410.8C}
Enclosed surface incandescent--12in. Clearance . . [410-8d1] {410.8D1}
Fluorescent or recessed incandescent--6in. clearance .[410-8d2] {410.8D2}
No new breaker panels . . . . . . . . . .F-e12 [240-24d] {240.24D}




Building Code Reference!

General-Purpose Circuits

Receptacles
Any wall =>2ft. in habitable room req's receptacle .[210-52a] {210.52A}
Appliance w/ 6ft. cord can connect from anywhere along wall
...............................................................................[210-52a] {210.52A}
Hallway =>10ft. requires receptacle . . . .. . . .[210-52h] {210.52H}
Lights
Recessed light {non-IC rated] 3in. from insulatiion . [410-66b] {410.66B}
Recessed light {non-IC rated] 2in. from combustibles.[410-66a1] {410.66A}
Switched lighting outlets req'd in all habitable rooms, baths,
halls, stairs, garages, outdoor entrances, storage and utility
areas, attics and crawlspaces with equipment . .[410-70a,c] {410.70A,C}
Light may be switched receptacle in habitable room
except kitchen & bath...........................[210-70a1X1] {210.70A1X1}
3-way switch for stairs =>6 risers . . . . . . . . . . . . . .[210-70a2] {210.70A}
Paddle Fans
Not to be supported by standard electrical boxes .[370-27c] {314.27D}
Listed fan box OK to 35 lbs. . . . . . . . . . .[422-18a] {422.18A}
Support independent of box over 35lbs. . . . . . .{422-18b] {422.18B}
Listed pass-through box system OK to 70lb. . . . .[422-18bX] {422.18BX}

Building Code Reference!

Bathroom

Receptacle on wall {<=3ft.} from basin . . . . . . .[210-52d] {210.52D}
GFCI protection all bath receptacles . . . . . . . .[210-8a1] {210.8A1}
Bath receptacles on separate 20-amp circuit . . . . . .[210-11c3] {210.11C3}
Primary light energy efficient {not incandescent] . . . .[energy] {energy}
Space heaters--max. watts on general-purpose circuit:
15-amp circuit 900W, 20-amp circuit 1200W . . . ..[210-23a] {210.23A2}

Hydromassage Tub
Must be GFCI-protected . . . . . . . . . . . . . . . .[680-70] {680.71}
Disconnect within sight of motor . . . . . . . . . . . . . . . . .[430.102b] {430.102B}
Disconnect may be cord-and-plug . . . . . . . . . . . . . . . .[422-32a] {422.33A}

Building Code Reference!

Utility

Laundry
Separate 20-amp circuit req'd for laundry . . . .[210-11c2] {210.11C2}
Electric dryer min. feed 30-amp circuit . . . . . .[220-18] {210.18}
Central Furnace
Fused disconnect unless thermally protected . .[430-32c1] {430.32.B1}
Lighting outlet switched at entry to equipment space . [210-70a3] {210.70A3}
Central furnace must be on individual circuit . . . .[422-12 {422.12}
120v receptacle within 25ft. on same elevation . .[210-63] {210.63}
Water Heater
In-sight or lockable breaker or switch ok . . . [422-21b] {422.31B}
Bond hot, cold, and gas pipes . . . . . . . .. .[250-104a,b] {250.104A,B}
Space Heating
Branch circuit 125% load {heat watts + motor FLC] .[424-3b] {424.3B}
In-sight or lockable breaker or switch ok . . ..[424-19c] {424.19C}
Air Conditioning
Split system wiring per nameplate not tables . .[440-4b] {440.4B}
Disconnect in sight of condenser . . . . . . . . . . . . [440-14] {440.14}
Cord & Plug disconnect OK if controls <=6ft. of floor . .[440-63] {440.63}
Max. cord length 120V=10ft, 240V=6ft. . . . .[440-64] {440.64}

Building Code Reference!

Cable

Romex® {NM Cable]
Not in {Type I or II} buildings [>3 floors except 1- & 2-family} .
............................................................................[336-5a1]{334.10}
Min. 4in. sheathing into box, max. 1in. . . . . . . . . . .[370-17c], local]{314.20}
Protect from physical damage . . . . . .[336-6b][334.15]
Nail plate req'd if cable < 14in. to stud face ... F-e13 [300-4a,d] {300.4AD]}
Secure <=12in. of box and at least every 44 ft. .[336-18] {334.30}
Clamp cable to box with approved clamp, EXC .[370-17b,c]{314.17B,C}
No clamp OK if single-gang plastic box & secured <=8in.
..........................................................[370-17cX] {314.17Cx}
Clamp listed for 1 or 2 cables max. {not chase nipple] ..[110-3b] {110.3B}
No sharp bends {min. 5x cable diameter] . . . .[336-16] {334.24}
Protect within 6ft. of attic access opening . . .[336-8d] {334.23}
Basements, exposed under joists ok if =>#8/3 . [336-6c] {334.15}
18cu.in. box too small for 3 x 12/2 Romex® . . . .[370-16b] {314/16B}



MC Cable
Secure <=12in. of box and at least every 6 ft. . . . . [334-10a] {330.30A,C}
Insulated bushing recommended at terminations . [334-12] {330.40}
Nail plate req'd if cable < 1/4in. to stud face . . . . . . . .[300-4a,d] {300.4A,D}
Protect within 6ft. of attic access opening . . . . . . . . . . . . .[334-10g] {330.23}

Building Code Reference!

Conduit Systems

General Requirements
Openings to conduit systems must remain accessible . . . .[370-29] {314.29}
No common plastic boxes with metal raceway or cable . .[370-3] {314.3}
Splices in conduit body only if size marked & sufficient volume ..{370-16c2]
Bends--max. 360 between pull points . . . . . . . . . . . . .[348-10] {348-12}
Kinks in pipe not permitted . . . . . . . . . . . . . . . . . . . . . .[348-9] {348-11}
EMT (Electrical Metallic Tubing)
Not suitable for direct burial . . . . . . . . . . . . . . . . . . . . . .[348-1] {348-4b}
Rain-tight fittings outdoors . . . . . . . . . . . . . . . . . . F-e14 [348-8] {348-10}
Supported every 10ft. and within 36in. of boxes . . . . . .[348-12] {348-13}
Not to support boxes except conduit bodies . . . . . . . . . .[348-1] {348-5}
Flexible Metal Conduit {Greenfield]
Dry locations only unless drip loop and "W" conductors . .[350-5] {348.12}
Supported every 4/1/2ft. & 12in. from box
Exception: where fished and motors to 3ft. . . . . . . . . . . . . . . . . . .[350-18] [348.30A,b]
OK as ground path up to 6ft. and <=20 amps . . . . . . . .[250-118X[]6] {250.118[]6}
Angle connections not concealed . . . . . . . . . . . . . . . . .. . . . . .[350-20] {348.42}
Equipment grounding conductor req'd to motorized equipment . .[350-14] {348.30}
Liquidtight Flexible Metal Conduit (Sealtight)
Same as flex except OK for wet or buried when marked . . . . .[351-4a] {350.10}
Equipment grounding conductor req'd to motorized equipment .[351-9] {350.60}

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Building Code Reference!

Boxes

Metal boxes must be grounded . . . . . . . . . . . . . . . . . . . . . . . . . . . .[370-4] {314.4}
Wallboard no side gaps >1/8in. to outlet box . . . . . . . . . . . . . . .[370-21] {314.21}
Outlet box flush with combustible surface . . . . . . . . . . . . . . . . .[370-20] {314.20}
Max. setback 1/4in. in non-combustible surface {drywall] . . . .[370-20] {314.20}
Boxes and conduit openings must remain accessible . . .. . .{370-29] {314.29}
Min. 6in. free conductor in box {min. 3in. past face} . . . .. . . [300-14] {300.14}
Box Fill
Box sufficient size for conductors, devices, & fittings . . .T-e6 [370-16] {314.16}
4in. {6cu.in.] pancake box end of 14/2 run only . . . . .F-e15 [370-16b] {314.16B}
18cu.in. box w/device too small for 3 x 12/2 Romex®. . . . . . .[370-16b] {314.16B}

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Building Code Reference!