CODES

ADOPTS WITHOUT AMENDMENTS:

International Residential Code 2012 (IRC 2012)

Part I ‒ Administrative

Chapter 1 Scope and Administration

Part II ‒ Definitions

Chapter 2 Definitions

Part III ‒ Building Planning and Construction

Chapter 3 Building Planning

Chapter 4 Foundations

Chapter 5 Floors

Chapter 6 Wall Construction

Chapter 7 Wall Covering

Chapter 8 Roof-Ceiling Construction

Chapter 9 Roof Assemblies

Chapter 10 Chimneys and Fireplaces

Part IV ‒ Energy Conservation

Chapter 11 [Re] Energy Efficiency

Part V ‒ Mechanical

Chapter 12 Mechanical Administration

Chapter 13 General Mechanical System Requirements

Chapter 14 Heating and Cooling Equipment and Appliances

Chapter 15 Exhaust Systems

Chapter 16 Duct Systems

Chapter 17 Combustion Air

Chapter 18 Chimneys and Vents

Chapter 19 Special Appliances, Equipment and Systems

Chapter 20 Boilers and Water Heaters

Chapter 21 Hydronic Piping

Chapter 22 Special Piping and Storage Systems

Chapter 23 Solar Energy Systems

Part VI ‒ Fuel Gas

Chapter 24 Fuel Gas

Part VII Plumbing Administration

Chapter 25 Plumbing Administration

Chapter 26 General Plumbing Requirements

Chapter 27 Plumbing Fixtures

Chapter 28 Water Heaters

Chapter 29 Water Supply and Distribution

Chapter 30 Sanitary Drainage

Chapter 31 Vents

Chapter 32 Traps

Chapter 33 Storm Drainage

Part VIII ‒ Electrical

Chapter 34 General Requirements

Chapter 35 Electrical Definitions

Chapter 36 Services

Chapter 37 Branch Circuit and Feeder Requirements

Chapter 38 Wiring Methods

Chapter 39 Power and Lighting Distribution

Chapter 40 Devices and Luminaires

Chapter 41 Appliance Installation

Chapter 42 Swimming Pools

Chapter 43 Class 2 Remote-Control, Signaling and Power-Limited Circuits

Part IX ‒ Referenced Standards

Chapter 44 Referenced Standards

Appendix A Sizing and Capacities of Gas Piping

Appendix B Sizing of Venting Systems Serving Appliances Equipped With Draft Hoods, Category I Appliances, and Appliances Listed for Use With Type B Vents

Appendix C Exit Terminals of Mechanical Draft and Direct-Vent Venting Systems

Appendix D Recommended Procedure for Safety Inspection of an Existing Appliance Installation

Appendix E Manufactured Housing Used as Dwellings

Appendix F Radon Control Methods

Appendix G Swimming Pools, Spas and Hot Tubs

Appendix H Patio Covers

Appendix I Private Sewage Disposal

Appendix J Existing Buildings and Structures

Appendix K Sound Transmission

Appendix L Permit Fees

Appendix M Home Day Care—R-3 Occupancy

Appendix N Venting Methods

Appendix O Automatic Vehicular Gates

Appendix P Sizing of Water Piping System

Appendix Q Icc International Residential Code Electrical Provisions/National Electrical Code Cross Reference

(This appendix is informative and is not part of the code. This table is a cross reference of
Chapters 34 through 43 of this code, and the 2011 National Electrical Code, NFPA 70).

International Residential CodeNational Electrical Code
CHAPTER34GENERAL REQUIREMENTS
SECTION E3401GENERAL
E3401.1ApplicabilityNone
E3401.2Scope90.2
E3401.3Not covered90.2
E3401.4Additions and alterationsNone
SECTION E3402BUILDING STRUCTURE PROTECTION
E3402.1Drilling and notchingNone
E3402.2Penetrations of fire-resistance-rated assemblies300.21
E3402.3Penetrations of firestops and draftstops300.21
SECTION E3403INSPECTION AND APPROVAL
E3403.1Approval110.2
E3403.2Inspection requiredNone
E3403.3Listing and labeling110.3
SECTION E3404GENERAL EQUIPMENT REQUIREMENTS
E3404.1Voltages110.4
E3404.2Interrupting rating110.9
E3404.3Circuit characteristics110.10
E3404.4Enclosure types
E3404.5Protection of equipment110.11
E3404.6Unused openings110.12(A)
E3404.7Integrity of electrical equipment110.12(B)
E3404.8Mounting110.13(A)
E3404.9Energized parts guarded against accidental contact110.27(A)
E3404.10Prevent physical damage110.27(B)
E3404.11Equipment identification110.21
E3404.12Identification of disconnecting means110.22
SECTION E3405EQUIPMENT LOCATION AND CLEARANCES
E3405.1Working space and clearances110.26
Figure E3405.1Working space and clearances110.26(A)
Footnote 1110.26(E)(1)(a)
Footnote 2110.26(A)(3)
Footnote 3110.26(B)
Footnote 4230.70(A); 240.24(D), (E) and (F); Note 5
Footnote 5110.26(D)
E3405.2Working clearances for energized equipment and panelboards110.26(A)(1), (2) and (3)
E3405.3Dedicated panelboard space110.26(F)(1)(a)
E3405.4Location of working spaces and equipment110.26(B); 230.70(A); and
240.24(D), (E) and (F)
E3405.5Access and entrance to working space110.26(C)(1)
E3405.6Illumination110.26(D)
SECTION E3406ELECTRICAL CONDUCTORS AND CONNECTIONS
E3406.1GeneralArticles 110, 300 and 310
E3406.2Conductor material110.5
E3406.3Minimum size of conductors310.106(A)
E3406.4Stranded conductors310.106(C)
E3406.5Individual conductor insulation310.10(B) and (C); and 310.106(D)
E3406.6Conductors in parallel310.10(H)(2)
E3406.7Conductors of the same circuit300.3(B)
E3406.8Aluminum and copper connections110.14
E3406.9Fine stranded conductors110.14
TableE3406.9Conductor strandingChapter9, Table 10
E3406.10Terminals110.14(A)
E3406.11Splices110.14(B)
E3406.11.1Continuity300.13(A)
Exception300.13(A)
E3406.11.2Device connections250.148(B) and 300.13(B)
E3406.11.3Length of conductor for splice or termination300.14
E3406.12Grounded conductor continuity200.2(B)
SECTION E3407CONDUCTOR IDENTIFICATION
E3407.1Grounded conductors200.6(A) and (B); and 310.110(A)
E3407.2Equipment grounding conductors250.119 and 310.110(B)
E3407.3Ungrounded conductors200.7(C)(1) and 310.110(C), Exception
E3407.4Identification of terminals200.10
E3407.4.1Device terminals200.10(A)
E3407.4.2Receptacles, plugs and connectors200.10(B)
CHAPTER35ELECTRICAL DEFINITIONS
SECTION 3501GENERALArticle 100, Definitions
CHAPTER36SERVICES
SECTION E3601GENERAL SERVICES
E3601.1Scope230.1
E3601.2Number of services230.2
E3601.3One building or other structure not to be supplied through another230.3
E3601.4Other conductors in raceway or cable230.7
E3601.5Raceway seal230.8
E3601.6Service disconnect required230.70
E3601.6.1Marking of service equipment and disconnects230.66 and 230.70(B)
E3601.6.2Service disconnect location230.70(A) and 230.72(C)
E3601.7Maximum number of disconnects230.71(A)
SECTION E3602SERVICE SIZE AND RATING
E3602.1Ampacity of ungrounded conductors.230.79(C) and (D)
E3602.2Service load220.82(A)
TableE3602.2Minimum service load calculation220.82(B) and (C)
E3602.2.1Services under 100 amperesNone
E3602.3Rating of service disconnect230.79 and 230.80
E3602.4Voltage rating220.82(A)
SECTION E3603SERVICE, FEEDER AND GROUNDING ELECTRODE CONDUCTOR SIZING
E3603.1Grounded and ungrounded service conductor size310.15(B)(7)
TableE3603.1Service conductor and grounding electrode conductor sizingTable 310.15(B)(7) and
Table 250.66
Footnote a250.64(E)
Footnote b250.64(B)
Footnote c250.64(B)
Footnote d250.66(A) and (B)
E3603.2Ungrounded service conductors for accessory buildings and structures230.79(D)
Exception 1230.42 and 230.79(A)
Exception 2230.42 and 230.79(B)
E3603.3Overload protection230.90
E3603.3.1Ungrounded conductor230.90(A)
Exception230.90(A), Exception 3
E3603.3.2Not in grounded conductor230.90(B)
E3603.3.3Location230.91
E3603.4Grounding electrode conductor size250.66
E3603.5Temperature limitations110.14(C)(1)
SECTION E3604OVERHEAD SERVICE AND SERVICE-ENTRANCE CONDUCTOR INSTALLATION
E3604.1Clearances on buildings230.9
Figure E3604.1Clearances from building openings230.9
E3604.2Vertical clearances230.24
E3604.2.1Above roofs230.24(A)
Exception 1230.24(A), Exception 1
Exception 2230.24(A), Exception 2
Exception 3230.24(A), Exception 3
Exception 4230.24(A), Exception 4
Exception 5230.24(A), Exception 5
Figure E3604.2.1Clearances from roofs230.24
E3604.2.2Vertical clearance from grade230.24(B)
Item 1230.24(B)(1)
Item 2230.24(B)(2)
Item 3230.24(B)(4)
E3604.3Point of attachment230.26
E3604.4Means of attachment230.27
E3604.5Service masts as supports230.28
E3604.6Supports over buildings230.29
SECTION E3605SERVICE-ENTRANCE CONDUCTORS
E3605.1Insulation of service-entrance conductors230.41
Exception 1230.41, Exception
Exception 2230.41, Exception
E3605.2Wiring methods for services230.43
E3605.3Spliced conductors230.46
E3605.4Protection of underground service entrance conductors230.50(A)
E3605.5Protection of service cables against damage230.50(B)
E3605.6Direct sunlight exposure310.10(D)
E3605.7Mounting supports230.51
E3605.8Raceways to drain230.53
E3605.9Overhead service locations230.54
E3605.9.1Rain-tight service head230.54(A)
E3605.9.2Service cable, service head or gooseneck230.54(B)
E3605.9.3Service head location230.54(C)
Exception230.54(C), Exception
E3605.9.4Separately bushed openings230.54(E)
E3605.9.5Drip loops230.54(F)
E3605.9.6Conductor arrangement230.54(G)
E3605.9.7Secured230.54(D)
SECTION E3606SERVICE EQUIPMENT—GENERAL
E3606.1Service equipment enclosures230.62
E3606.2Working space110.26
E3606.3Available short-circuit current110.9
E3606.4Marking230.66
SECTION E3607SYSTEM GROUNDING
E3607.1System service ground250.20(B)(1) and 250.24(A)
E3607.2Location of grounding electrode conductor connection250.24(A)(1) and (A)(5)
E3607.3Buildings or structures supplied by feeder(s) or branch circuit(s)250.32(A)
Exception250.32(A), Exception
E3607.3.1Equipment grounding conductor250.32(B) and Table 250.122
E3607.3.2Grounded conductor250.32(B)(1), Exception
E3607.4Grounding electrode conductor250.24(D)
E3607.5Main bonding jumper250.24(B)
E3607.6Common grounding electrode250.58
SECTION E3608GROUNDING ELECTRODE SYSTEM
E3608.1Grounding electrode system250.50
Exception250.50, Exception
E3608.1.1Metal underground water pipe250.52(A)(1)
E3608.1.1.1Interior metal water piping250.68(C)(1)
E3608.1.1.2Installation250.53(D) and 250.53(E)
E3608.1.2Concrete-encased electrode250.52(A)(3)
E3608.1.3Ground rings250.52(A)(4) and 250.53(F)
E3608.1.4Rod and pipe electrodes250.52(A)(5)
E3608.1.4.1Installation250.53(G)
E3608.1.5Plate electrodes250.52(A)(7) and 250.53(H)
E3608.1.6Other listed electrodes250.52(A)(6)
E3608.2Bonding jumper250.53(C)
E3608.3Rod, pipe and plate electrode requirements250.53(A), (B) and (E)
E3608.4Supplemental electrode required250.53(A)(2) and (A)(3)
E3608.5Aluminum electrodes250.52(B)(2)
E3608.6Metal underground gas piping system250.52(B)(1)
SECTION E3609BONDING
E3609.1General250.90
E3609.2Bonding of service equipment250.92(A)
E3609.3Bonding to other systems250.94
E3609.4Method of bonding at the service250.92(B)
E3609.4.1Grounded service conductor250.92(B)(1)
E3609.4.2Threaded connections250.92(B)(2)
E3609.4.3Threadless couplings and connectors250.92(B)(3)
E3609.4.4Other devices250.92(B)(4)
E3609.5Sizing bonding jumper on supply side of service and
main bonding jumper250.28(D) and 250.102(C)
E3609.6Metal water piping bonding250.104(A)
E3609.7Bonding other metal piping250.104(B)
SECTION E3610GROUNDING ELECTRODE CONDUCTORS
E3610.1Continuous250.64(C) and (F)
E3610.2Securing and protection against physical damage250.64(A) and (B)
E3610.3Enclosures for grounding electrode conductors250.64(E)
E3610.4Prohibited use250.121
SECTION E3611GROUNDING ELECTRODE CONDUCTOR CONNECTION TO
GROUNDING ELECTRODES
E3611.1Methods of grounding connection to electrodes250.70
E3611.2Accessibility250.68(A)
E3611.3Effective grounding path250.68(B)
E3611.4Interior metal water piping250.68(C)(1)
E3611.5Protection of ground clamps and fittings250.10
E3611.6Clean surfaces250.12
CHAPTER37BRANCH-CIRCUIT AND FEEDER REQUIREMENTS
SECTION E3701GENERAL
E3701.1ScopeNone
E3701.2Branch-circuit and feeder ampacity210.19(A) and 215.2(A)(1)
E3701.3Selection of ampacity310.15(A)(2), Exception
E3701.4Branch circuits with more than one receptacle210.19(A)(2)
E3701.5Multiwire branch circuits210.4
E3701.5.1Disconnecting means210.4(B)
E3701.5.2Grouping210.4(D)
SECTION E3702BRANCH-CIRCUIT RATINGS
E3702.1Branch-circuit voltage limitations210.6(A), (B) and (C)
E3702.2Branch-circuit ampere rating210.3
E3702.3Fifteen- and 20-ampere branch circuits210.23(A)
E3702.4Thirty-ampere branch circuits210.23(B)
E3702.5Branch circuits serving multiple loads or outlets210.23(A)
E3702.6Branch circuits serving a single motor430.22(A)
E3702.7Branch circuits serving motor-operated and combination loads220.18(A)
E3702.8Branch-circuit inductive lighting loads220.18(B)
E3702.9Branch-circuit load for ranges and cooking appliancesTable 220.55, Note 4
E3702.9.1Minimum branch circuit for ranges210.19(A)(3)
E3702_10Branch circuits serving heating loads422.13; and 424.3(A) and (B)
E3702.11Branch circuits for air-conditioning and
heat pump equipment440.4(B), 440.35 and 440.62(A)
E3702.12Branch circuits serving room air conditioners440.62(A)
E3702.12.1Where no other loads are supplied440.62(B)
E3702.12.2Where lighting units or other appliances are also supplied440.62(C)
E3702.13Branch-circuit requirement—summary210.24 and 210.25
TableE3702.13Branch-circuit requirement—summaryTable 210.24
SECTION E3703REQUIRED BRANCH CIRCUITS
E3703.1Branch circuits for heating422.12 and 422.12, Exceptions 1 and 2
E3703.2Kitchen and dining area receptacles210.52 (B)(1)
E3703.3Laundry circuit210.11(C)(2); and 210.23(A), Exception
E3703.4Bathroom branch circuits210.11(C)(3)
E3703.5Number of branch circuits210.11(A)
E3703.6Branch-circuit load proportioning210.11(B)
SECTION E3704FEEDER REQUIREMENTS
E3704.1Conductor size215.2 (A)(3) and (A)(4); 220.40; and Table 310.15(B)(7)
E3704.2Feeder loads220.40
TableE3704.2(1)Feeder load calculationTable 220.12, 220.14, Table 220.42(C), 220.50,
220.51, 220.52, 220.53, 220.54, 220.55 and 220.60
TableE3704.2(2)Demand loads for electric ranges, wall-mounted ovens, counter-mounted
cooking units and other cooking appliances over 13/4 kVA ratingTable 220.55
E3704.3Feeder neutral load220.61
E3704.4Lighting and general use receptacle load220.12, Table 220.12 and 220.14(J)
E3704.5Ampacity and calculated loads220.40
E3704_6Equipment grounding conductor215.6
SECTION E3705CONDUCTOR SIZING AND OVERCURRENT PROTECTION
E3705.1General310.15(A)
TableE3705.1Allowable ampacitiesTable 310.15(B)(16)
E3705.2Correction factors for ambient temperaturesTable 310.15(B)(16)
TableE3705.2Ambient temperature correction factorsTable 310.15(B)(2)(a)
E3705.3Adjustment factor for conductor proximity310.15(B)(3)(a)
TableE3705.3Conductor proximity adjustment factorsTable 310.15(B)(3)(a)
E3705.4Temperature limitations110.14(C)
E3705.4.1Conductors rated 60°C110.14(C)(1)(a)
E3705.4.2Conductors rated 75°C110.14(C)(1)(b)
E3705.4.3Separately installed pressure connectors110.14(C)(2)
E3705.4.4Conductors of Type NM cable334.80 and 334.112
E3705.5Overcurrent protection required240.4, 240.21 and Table 310.15(B)(6)
E3705.5.1Cords240.5
E3705.5.2Overcurrent devices of the next higher size240.4(B)
E3705.5.3Small conductors240.4(D)
E3705.5.4Air-conditioning and heat pump equipment240.4(G)
E3705.6Fuses and fixed-trip circuit breakers240.6
E3705.7Location of overcurrent devices in or on premises240.24(A), (C), (D), (E) and (F)
E3705.8Ready access for occupants240.24(B)
E3705.9Enclosures for overcurrent devices240.30(A) and (B)
SECTION E3706PANELBOARDS
E3706.1Panelboard rating408.30
E3706.2Panelboard circuit identification408.4
E3706.3Panelboard overcurrent protection408.36
E3706.4Grounded conductor terminations408.41
E3706.5Back-fed devices408.36(D)
CHAPTER38WIRING METHODS
SECTION E3801GENERAL REQUIREMENTS
E3801.1Scope300.1
E3801.2Allowable wiring methods110.8 and 300.3(A)
TableE3801.2Allowable wiring methodsNone
E3801.3Circuit conductors300.3(B)
E3801.4Wiring method applicationsChapter 3 and 300.2
TableE3801.4Allowable applications for wiring methodsChapter 3 and 300.2
SECTION E3802ABOVE-GROUND INSTALLATION REQUIREMENTS
E3802.1Installation and support requirementsChapter 3
TableE3802.1General installation and support requirements for wiring methodsChapter 3
E3802.2Cables in accessible attics320.23 and 334.23
E3802.2.1Across structural members320.23(A) and 334.23
E3802.2.2Cable installed through or parallel to
framing members320.23(B)
E3802.3Exposed cable320.15 and 334.15
E3802.3.1Surface installation334.15(A)
E3802.3.2Protection from physical damage334.15(B)
E3802.3.3Locations exposed to direct sunlight310.10(D)
E3802.4In unfinished basements334.15(C)
E3802.5Bends334.24 and 338.24
E3802.6Raceways exposed to different temperatures300.7(A)
E3802.7Raceways in wet locations above grade300.9
SECTION E3803UNDERGROUND INSTALLATION REQUIREMENTS
E3803.1Minimum cover requirements300.5(A)
TableE3803.1Minimum cover requirements, burial in inchesTable 300.5
E3803.2Warning ribbon300.5(D)(3)
E3803.3Protection from damage300.5(D)
E3803.4Splices and taps300.5(E)
E3803.5Backfill300.5(F)
E3803.6Raceway seals300.5(G)
E3803.7Bushing300.5(H)
E3803.8Single conductors300.5(I)
E3803.9Ground movement300.5(J)
E3803.10Wet locations300.5(B)
E3803.11Under buildings300.5(C)
CHAPTER39POWER AND LIGHTING DISTRIBUTION
SECTION E3901RECEPTACLE OUTLETS
E3901.1General210.50 and 210.52
E3901.2General-purpose receptacle distribution210.52(A)
E3901.2.1Spacing210.52(A)(2)
E3902.2.2Wall space210.52(A)(2)
E3901.2.3Floor receptacles210.52(A)(3)
E3901.2.4Countertop receptacles210.52(A)(4)
E3901.3Small appliance receptacles210.52(B)(1)
E3901.3.1Other outlets prohibited210.52(B)(2)
E3901.3.2Limitations210.52(B)(3)
E3901.4Countertop receptacles210.52(C)
E3901.4.1Wall counter space210.52(C)(1)
E3901.4.2Island counter spaces210.52(C)(2)
E3901.4.3Peninsular counter space210.52(C)(3)
E3901.4.4Separate spaces210.52(C)(4)
E3901.4.5Receptacle outlet location210.52(C)(5)
E3901.5Appliance receptacle outlets210.50(C)
E3901.6Bathroom210.52(D) and 406.5(E)
E3901.7Outdoor outlets210.52(E)
E3901.8Laundry areas210.52(F)
E3901.9Basements and garages210.52(G)
E3901.10Hallways210.52(H)
E3901.11Foyers210.52(I)
HVAC outlet210.63
SECTION E3902GROUND-FAULT AND ARC-FAULT CIRCUIT-INTERRUPTER PROTECTION
E3902.1Bathroom receptacles210.8(A)(1)
E3902.2Garage and accessory building receptacles210.8(A)(2)
E3902.3Outdoor receptacles210.8(A)(3)
E3902.4Crawl space receptacles210.8(A)(4)
E3902.5Unfinished basement receptacles210.8(A)(5)
E3902.6Kitchen receptacles210.8(A)(6)
E3902.7Sink receptacles210.8(A)(7) and 406.5(E)
E3902.8Boathouse receptacles210.8(A)(8)
E3902_9Boat hoists210.8(C)
E3902.10Electrically heated floors424.44(G)
E3902.11Location of ground-fault circuit interrupters210.8
E3902.12Arc-fault circuit-interrupter protection210.12(A)
E3902.13Arc-fault circuit-interrupter protection for branch-circuit extensions or
modifications210.12(B)
SECTION E3903LIGHTING OUTLETS
E3903.1General210.70(A)
E3903.2Habitable rooms210.70(A)(1)
E3903.3Additional locations210.70(A)(2)
E3903.4Storage or equipment spaces210.70(A)(3)
SECTION E3904GENERAL INSTALLATION REQUIREMENTS
E3904.1Electrical continuity of metal raceways and enclosures300.10
E3904.2Mechanical continuity—raceways and cables300.12
E3904.3Securing and supporting300.11(A)
E3904.3.1Prohibited means of support300.11(C)
E3904.4Raceways as means of support300.11(B)
E3904.5Raceway installations300.18
E3904.6Conduit and tubing fill300.17; Chapter 9, Table 1; and Annex C
Tables E3904.6(1)–
E3904.6(10)Maximum number of conductors in conduit or tubing300.17; and Chapter 9, Table 1, Note 1
E3904.7Air handling—stud cavity and joist spaces300.22(C), Exception
CHAPTER E3905BOXES, CONDUIT BODIES AND FITTINGS
E3905.1Box, conduit body or fitting—where required300.15
E3905.1.1Equipment300.15(B)
E3905.1.2Protection300.15(C)
E3905.1.3Integral enclosure300.15(E)
E3905.1.4Fitting300.15(F)
E3905.1.5Buried conductors300.15(G)
E3905.1.6Luminaires300.15(J)
E3905.2Metal boxes314.4
E3905.3Nonmetallic boxes314.3
E3905.3.1Nonmetallic-sheathed cable and nonmetallic boxes314.17(C)
E3905.3.2Securing to box314.17(C)
E3905.3.3Conductor rating314.17(C)
E3905.4Minimum depth of outlet boxes314.24
E3905.4.1Outlet boxes without enclosed devices
E3905.4.2Utilization equipment
E3905.5Boxes enclosing flush-mounted devices314.19
E3905.6Boxes at luminaire (lighting fixture) outlets314.27(A)(1) and(2)
E3905.6.1Wall outlets
E3905.6.2Ceiling outlets
E3905.7Floor boxes314.27(C)
E3905.8Boxes at fan outlets314.27(D)
E3905.9Utilization equipment314.27(E)
E3905.10Conduit bodies, junction, pull and outlet boxes to be accessible314.29
E3905.11Damp or wet locations314.15
E3905.12Number of conductors in outlet, device, and junction boxes and conduit boxes314.16
E3905.12.1Box volume calculations314.16(A)
TableE3905.12.1Maximum number of conductors in metal boxesTable 314.16
E3905.12.1.1Standard boxes314.16(A)(1)
E3905.12.1.2Other boxes314.16(A)(2)
E3905.12.2Box fill calculations314.16(B)
E3905.12.2.1Conductor fillTable 314.16 and 314.16(B)(1)
TableE3905.12.2.1Volume allowance required per conductorTable 314.16(B)
E3905.12.2.2Clamp fill314.16(B)(2)
E3905.12.2.3Support fittings fill314.16(B)(3)
E3905.12.2.4Device or equipment fill314.16(B)(4)
E3905.12.2.5Equipment grounding conductor fill314.16(B)(5)
E3905.12.3Conduit bodies314.16(C)(1)
E3905.12.3.1Splices, taps or devices314.16(C)(2)
E3905.12.3.2Short radius conduit bodies314.16(C)(3)
SECTION E3906INSTALLATION OF BOXES, CONDUIT BODIES AND FITTINGS
E3906.1Conductors entering boxes, conduit bodies or fittings314.17
E3906.1.1Insulated fittings300.4(G)
E3906.2Openings314.17(A)
E3906.3Metal boxes, conduit bodies and fittings314.17(B)
E3906.4Unused openings110.12(A)
E3906.5In wall or ceiling314.20
E3906.6Noncombustible surfaces314.21
E3906.7Surface extensions314.22
E3906.8Supports314.23
E3906.8.1Surface mounting314.23(A)
E3906.8.2Structural mounting314.23(B)
E3906.8.2.1Nails and screws314.23(B)(1)
E3906.8.2.2Braces314.23(B)(2)
E3906.8.3Mounting in finished surfaces314.23(C)
E3906.8.4Raceway supported enclosures without devices or fixtures314.23(E)
E3906.8.5Raceway supported enclosures with devices or fixtures314.23(F)
E3906.8.6Enclosures in concrete or masonry314.23(G)
E3906.9Covers and canopies314.25
E3906.10Metal covers and plates314.25(A)
E3906.11Exposed combustible finish314.25(B)
SECTION E3907CABINETS AND PANELBOARDS
E3907.1Switch and overcurrent device enclosures312.8
E3907.2Damp or wet locations312.2
E3907.3Position in wall312.3
E3907.4Repairing noncombustible surfaces312.4
E3907.5Unused openings110.12(A) and 408.7
E3907.6Conductors entering cabinets300.4(G) and 312.5(B)
E3907.7Openings to be closed312.5(A)
E3907.8Cables312.5(C)
SECTION E3908GROUNDING
E3908.1Metal enclosures250.86
E3908.2Equipment fastened in place or connected by
permanent wiring methods (fixed)250.110(1), (2) and (3)
E3908.3Specific equipment fastened in place or connected by
permanent wiring methods250.112(J), (L) and (M)
E3908.4Effective ground-fault current path250.4(A)(5)
E3908.5Earth as a ground-fault current path250.4(A)(5)
E3908.6Load-side grounded conductor250.24(A)(5)
E3908.7Load-side equipment250.142(B)
E3908.8Types of equipment grounding conductors250.118
E3908.8.1Flexible metal conduit250.118(5)
E3908.8.2Liquid-tight flexible metal conduit250.118(6)
E3908.8.3Nonmetallic sheathed cable (Type NM)334.108
E3908.9Equipment fastened in place or connected by permanent wiring methods250.134
E3908.10Methods of equipment grounding250 Part (VII)
E3908.11Equipment grounding conductor installation250.120
E3908.12Equipment grounding conductor size250.122(A) and (B)
TableE3908.12Equipment grounding conductor sizingTable 250.122
E3908.12.1Multiple circuits250.122(C)
E3908.13Continuity and attachment of equipment grounding conductors to boxes250.148
E3908.14Connecting receptacle grounding terminal to box250.146(A), (B) and (C)
E3908.15Metal boxes250.8 and 250.148(C)
E3908.16Nonmetallic boxes250.148(D)
E3908.17Clean surfaces250.12
E3908.18Bonding other enclosures250.96(A)
E3908.19Size of equipment bonding jumper on load side of service250.102(D) and 250.122
E3908.20Installation—equipment bonding jumper250.102(E)
E3908.20.1Inside raceway or enclosure
E3908.20.2Outside raceway or enclosure
E3908.20.3Protection
SECTION E3909FLEXIBLE CORDS
E3909.1Where permitted400.7 and 400.8
E3909.2Loading and protection240.4; 240.5(A) and 240.5(B)(1); 400.5; and 400.13
TableE3909.2Maximum ampere load for flexible cordsTable 400.5(A)(1)
E3909.3Splices400.9
E3909.4Attachment plugs400.7(B)
CHAPTER40DEVICES AND LIGHTING FIXTURES
SECTION E4001SWITCHES
E4001.1Rating and application of snap switches404.14(A)
E4001.2CO/ALR snap switches404.14(C)
E4001.3Indicating404.7
E4001.4Time switches and similar devices404.5
E4001.5Grounding of enclosures404.12
E4001.6Access404.8(A)
E4001.7Damp or wet locations404.4
E4001.8Grounded conductors404.2(B)
E4001.9Switch connections404.2(A)
E4001.10Box mounted404.10(B)
E4001.11Snap switch faceplates404.9(A)
E4001.11.1Faceplate grounding404.9(B)
E4001.12Dimmer switches404.14(E)
E4001.13Multipole snap switches404.8(C)
E4001.14Cord- and plug-connected loads401.14(F)
E4001.15Switches controlling lighting loads404.2(C)
SECTION E4002RECEPTACLES
E4002.1Rating and type406.3(A) and (B)
E4002.1.1Single receptacle210.21(B)(1)
E4002.1.2Two or more receptacles210.21(B)(3)
TableE4002.1.2Receptacle ratings for various size multioutlet circuitsTable 210.21(B)(3)
E4002.2Grounding type406.4(A)
E4002.3CO/ALR receptacles406.3(C)
E4002.4Faceplates406.6(B)
E4002.5Position of receptacle faces406.5(D) and 406.6
E4002.6Receptacles mounted in boxes406.5(A) and 406.5(B)
E4002.7Receptacles mounted on covers406.5(C)
E4002.8Damp locations406.9(A)
E4002.915- and 20-ampere receptacles in wet locations406.9(B)(1)
E4002.10Other receptacles in wet locations406.9(B)(2)
E4002.11Bathtub and shower space406.9(C)
E4002.12Flush mounting with faceplate406.9(E)
E4002.13Exposed terminals406.5(F)
E4002.14Tamper-resistant receptacles406.12
SECTION E4003LUMINAIRES
E4003.1Energized par410.5
E4003.2Luminaires near combustible material410.11
E4003.3Exposed conductive parts410.42(A)
E4003.4Screw-shell type410.90
E4003.5Recessed incandescent luminaires410.115(C)
E4003.6Thermal protection410.130(E)(1)
E4003.7High-intensity discharge luminaires410.130(F)
E4003.8Metal halide lamp containment410.130(F)(5)
E4003.9Wet or damp locations410.10(A)
E4003.10Lampholders in wet or damp locations410.96
E4003.11Bathtub and shower area410.10(D)
E4003.12Luminaires in clothes closets410.2; and 410.16(A), (B), (C) and (D)
Figure E4003.12Closet storage spaceFigure 410.2
E4003.13Luminaire wiring—general410.48
E4003.13.1Polarization of luminaires410.50
E4003.13.2Luminaires as raceways410.64(A), (B) and (C)
SECTION E4004LUMINAIRE INSTALLATION
E4004.1Outlet box covers410.22
E4004.2Combustible material at outlet boxes410.23
E4004.3Access410.8
E4004.4Supports410.30(A)
E4004.5Means of support410.36(A)
E4004.6Exposed components410.136(A)
E4004.7Combustible low-density cellulose fiberboard410.136(B)
E4004.8Recessed luminaire clearance410.116(A)(1) and (2)
E4004.9Recessed luminaire installation410.116(B)
SECTION E4005TRACK LIGHTING
E4005.1Installation410.151(A) and (B)
E4005.2Fittings410.151(A) and (D)
E4005.3Connected load410.151(B)
E4005.4Prohibited locations410.151(C)
E4005.5Fastening410.154
E4005.6Grounding410.155(B)
CHAPTER41APPLIANCE INSTALLATION
SECTION E4101GENERAL
E4101.1Scope422.1 and 424.1
E4101.2Installation110.3(B) and 422.17
E4101.3Flexible cords422.16
TableE4101.3Flexible cord length422.16(B)(1), (2) and (4)
E4101.4Overcurrent protection422.11
E4101.4.1Single nonmotor-operated appliance422.11(E)
E4101.5Disconnecting means422.30, 422.35 and 424.19
TableE4101.5Disconnecting means422.31(A), (B) and (C); 422.34; 422.35; 424.19; 424.20; and 440.14
E4101.6Support of ceiling-suspended paddle fans422.18
E4101.7Snow-melting and deicing equipment protection210.8(A)(3), Exception; and 426.28
CHAPTER42SWIMMING POOLS
SECTION E4201GENERAL
E4201.1Scope680.1
E4201.2Definitions680.2
SECTION E4202WIRING METHODS FOR POOLS, SPAS,
HOT TUBS AND HYDROMASSAGE BATH TUBS
E4202.1General680.7; 680.21(A); 680.23(B) and (F); 680.25(A); 680.40; 680.42; 680.43; and 680.70
E4202.2Flexible cords680.7(A) and (B); 680.22(B)(5); 680.23(B)(3); 680.42; and 680.43, Exception
E4202.3Double-insulated pool pumps680.21(B)
SECTION E4203EQUIPMENT LOCATION AND CLEARANCES
E4203.1Receptacle outlets680.22(A)(5)
E4203.1.1Location680.22(A)(1)
E4203.1.2Where required680.22.(A)(3)
E4203.1.3GFCI protection680.22(C)
E4203.1.4Indoor locations680.43(A) and (A)(1)
E4203.1.5Indoor GFCI protection680.43(A)(2)
E4203.2Switching devices680.22(D), 680.43(C) and 680.72
E4203.3Disconnecting means680.12
E4203.4Luminaires and ceiling fans680.22(B)
E4203.4.1Outdoor location680.22(B)(1)
E4203.4.2Indoor location680.22(B)(2)
E4203.4.3Existing lighting outlets and luminaires680.22(B)(3)
E4203.4.4Indoor spas and hot tubs680.43(B)
E4203.4.5GFCI protection in adjacent areas680.22(B)(4)
4203.5Other outlets680.22(D)
E4203.6Overhead conductor clearances680.8
TableE4203.6Overhead conductor clearancesTable 680.8
E4203.7Underground wiring680.10
TableE4203.7Underground wiringTable 680.10
SECTION E4204BONDING
E4204.1Performance680.26(A)
E4204.2Bonded parts680.26(B); 680.26(E); 680.42(B); and 680.43(D)(4)
E4204.3Pool water680.26(C)
E4204.4Bonding of outdoor hot tubs and spas680.42 and 680.42(B)
E4204.5Bonding of indoor hot tubs and spas680.43(D)
E4204.5.1Methods680.43(E)
E4204.5.2Connections680.26(B)
SECTION E4205GROUNDING
E4205.1Equipment to be grounded680.6
E4205.2Luminaires and related equipment680.23(F)(2) and 680.24(F)
E4205.3Nonmetallic conduit680.23(B)(2)(b)
E4205.4Flexible cords680.23(B)(3)
E4205.5Motors680.21(A)(1) and (4)
E4205.6Feeders680.25(B) and (B)(1)
E4205.6.1Separate buildings680.25(B)(2)
E4205.7Cord-connected equipment680.7
E4205.8Other equipmentArticle 250, Parts V, VI and VII; and 680.6
SECTION E4206EQUIPMENT INSTALLATION
E4206.1Transformers680.23(A)(2)
E4206.2Ground-fault circuit-interrupter680.5
E4206.3Wiring on load side of ground-fault circuit-interrupters and transformers680.23(F)(3)
E4206.4Underwater luminaires680.23(A)(1), (3) and (7)
E4206.4.1Maximum voltage680.23(A)(4)
E4206.4.2Luminaire location680.23(A)(5) and (6)
E4206.5Wet-niche luminaires680.23(B)(1), (2), (4) and (5)
E4206.5.1Servicing680.23(B)(6)
E4206.6Dry-niche luminaires680.23(C)(1) and (2)
E4206.7No-niche luminaires680.23(D)
E4206.8Through-wall lighting assembly680.23(E)
E4206.9Junction boxes and enclosures for transformers or
ground-fault circuit-interrupters680.24(A) through (E)
E4206.9.1Junction boxes680.24(A)(1) and (2)
E4206.9.2Other enclosures680.24(B)(1) and (2)
E4206.9.3Protection of junction boxes and enclosures680.24(C)
E4206.9.4Grounding terminals680.24(D)
E4206.9.5Strain relief680.24(E)
E4206.10Underwater audio equipment680.27(A)
E4206.10.1Speakers680.27(A)(1)
E4206.10.2Wiring methods680.27(A)(2)
E4206.10.3Forming shell and metal screen680.27(A)(3)
E4206.11Electrically operated pool covers680.27(B)(1) and (2)
E4206.12Electric pool water heaters680.9
E4206.13Pool area heating680.27(C)
E4206.13.1Unit heaters680.27(C)(1)
E4206_13_2Permanently wired radiant heaters680.27(C)(2)
E4206.13.3Radiant heating cables prohibited680.27(C)(3)
SECTION E4207STORABLE SWIMMING POOLS
E4207.1Pumps680.31
E4207.2Ground-fault circuit-interrupters required680.32
E4207.3Luminaires680.33
E4207.3.1Within the low voltage contact limit680.33(A)
E4207.3.2Over the low voltage contact limit680.33(B)
E4207.4Receptacle locations680.34
SECTION E4208SPAS AND HOT TUBS
E4208.1Ground-fault circuit-interrupters680.44(A) and (B)
E4208.2Electric water heaters680.9
E4208.3Underwater audio equipment680.43(G)
E4208.4Emergency switch for spas and hot tubs680.41
SECTION E4209HYDROMASSAGE BATHTUBS
E4209.1Ground-fault circuit-interrupters680.71
E4209.2Other electric equipment680.72
E4209.3Accessibility680.73
E4209.4Bonding680.74
CHAPTER43CLASS 2 REMOTE-CONTROL, SIGNALING AND POWER-LIMITED CIRCUITS
SECTION E4301GENERAL
E4301.1Scope725.1
E4301.2DefinitionsArticle 100 and 725.2
SECTION E4302POWER SOURCES
E4302.1Power sources for Class 2 circuits725.121(A)
E4302.2Interconnection of power sources725.121(B)
SECTION E4303WIRING METHODS
E4303.1Wiring methods on supply side of Class 2 power source725.127
E4303.2Wiring methods and materials on load side of
Class 2 power source725.130, 725.154, Table 725.154(G), 725.179
TableE4303.2Cable uses and permitted substitutions725.154 and Table 725.154(G)
E4303.2.1Type CL2P cables725.154(A) and 725.179(A)
E4303.2.2Type CL2 cables725.179(C)
E4303.2.3Type CL2X cables725.154(E)(4) and 725.179(D)
E4303.2.4Marking725.179(L)
SECTION E4304INSTALLATION REQUIREMENTS
E4304.1Separation from other conductors725.136(A), (B), (C) and (D)
E4304.2Other applications725.136(I)
E4304.3Class 2 circuits with communication circuits725.139(D)
E4304.4Class 2 cables with other circuit cables725.139(E)(1) through (5)
E4304.5Installation of conductors and cables300.11(B)(2), 725.21, 725.24 and 725.143
E4304.6Bushing725.3(J)
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