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Canadian Electrical Code Review Guide
) C- \% U& }: D5 [0 qFor the Exam of Electrician For Red Seal License0 W6 M- b$ S$ o# {9 Z* \/ h) n n
- f. j) z. T# b( ?/ O+ I6 B9 M
Lesson One
+ A2 g' u2 e, j7 u+ k" j2 RSection 0 DEFINITIONS+ f& l( s& X. ]# d
This section is a required reading section. You should become familiar with the terminology and it’s meaning. For example:
) J7 f, ?0 c3 k0 Q/ t; ]5 C3 nAccessible as applied to wiring methods2 r( I: _' {+ r! R* |& w# S
Alive or live
' B7 F# O' ?% }0 V9 N. I, K5 pAluminum-sheathed cable
" U4 {4 y8 m6 Q* M# B) KAmpacity
7 t; |( [/ n M* yAuthorized person5 X. r# `$ y' p, x+ {4 m
Auxiliary gutter0 q- f5 v' u2 {
AWG
# y" y- h6 Q$ O N7 nBonding4 J, n4 B" B" L( l
Cable tray( ~8 C% H0 d7 t9 [$ z K" D, ^
Cellular floor
1 h, w( `% J5 U3 N1 K+ D3 KBranch circuit G! e& |+ Y3 X3 @& v. G$ N1 A# w
Bus
' K8 C8 h: Q. a; p# xBusway
1 N% a& [2 k2 e- Y2 o* gCommunication circuit! X4 n6 T$ b C) g$ ?; H1 a
Extra-low-voltage power circuit$ H! y$ h* g4 r! J9 x
Low-energy power circuit
4 Q2 r2 d4 L5 f2 J2 m" e( z4 VMulti-wire branch circuit9 k% A' S, B7 S$ u( r
Remote control circuit
3 _; v- D' u L3 V7 `Signal circuit+ o3 v" p" h# [5 z5 y# Z* o
Circuit breaker# n& f% j+ ^6 | q% ~2 s/ b
Instantaneous-trip circuit breaker
( ~: H8 O+ R& [Conductor2 E) m: h/ T2 B
Conduit
9 o: V% v: J. Y( U; w Flexible metal conduit3 R. w# k. |% L9 E
Liquid-tight flexible conduit
+ a& s& X" K2 l: [) f- T" | Rigid conduit2 Z; N1 s \! ?$ r, t) z
Rigid metal conduit
6 h3 m# Y' n3 o9 d Rigid nonmetallic conduit+ u, i! @- S" a5 k
Rigid PVC conduit
' O: E; V9 L) W2 o1 h7 X5 wConnector
6 T2 g$ W6 u9 n3 u. K s Box connector
9 C3 w/ g8 [" r4 u8 J. C Wire connector
/ i1 B/ C7 R- s' R" S6 KController
4 s. n% _6 f+ L6 XDisconnecting means. @, f* [1 m6 [
Dust-tight
% K, [+ r. z8 GDwelling unit/ O/ V0 y* M; s
Electrical contractor
9 {$ _6 h, W6 }6 }: K; Y' GElectrical metallic tubing5 ^" B9 t% ]' ~/ ^9 c9 D
Electrical nonmetallic tubing0 X- M! I9 N4 F$ o5 y
Emergency lighting9 d4 Z- ~' Y6 i$ D" t
Explosion-proof+ ?- ?4 ]4 c# X
Extra-low-voltage power circuit
e5 a" B! d6 g. @% V WFeeder+ \) V/ i/ `+ Z5 `9 w* V
Flexible metal conduit+ S( }5 t+ s- C y4 `/ G
Ground) H) e7 C& e- G7 t2 I
Ground fault circuit interrupter: G3 I6 C5 a& q4 W
Grounded
& J* _% x% y1 JGrounding7 A- N6 g% n% L4 l" m
Grounding conductor+ n6 U* V1 M: B+ T9 d; t
Grounding electrode) j$ O3 n9 R6 ~( @
Guarded
. I! z8 e5 m$ |* v2 _Hoistway0 J3 h+ G3 z) T
Identified
% q" N* [* W# j* U- J1 m' xLampholder
5 L) v0 q! ?4 Q7 u5 VLow-voltage protection& y, P5 q* B1 O; F8 F
Low-voltage release
9 A; I8 A: f! @* u+ |Neutral2 J1 H( E% D) B1 U! G0 [/ @9 R$ s
Noncombustible construction1 c3 n2 `$ n2 L
Outlet
: B/ O5 m) K3 \8 `- T7 \6 _; g: _" DOutline lighting
+ h) J/ H' H+ [8 `4 ~* dOver current device8 L7 w# v3 A& } H, w# r: f
Overload device
' S1 a& e( V- uPanel board
' C6 c9 ?" t6 ]$ t/ D$ _0 ~4 W. _Panelboard, enclosed' @* _" D% X3 U) t. }
Permanently connected equipment# y# v5 F: w8 }, ], H1 J
Permit n. g- W/ |1 ~8 |1 V7 U
Plenum; |8 ]8 V3 M$ f8 ~/ L& j
Portable as applied to electrical equipment) s( u" A9 M: }( {
Portable ground fault circuit interrupter# U+ I6 [0 _) R0 t# _7 J( L
Power supply cord
% F, m" o& {, |Raceway
$ F* ?# }, r: x' C/ rReceptacle
6 \* a0 p( @: B2 p, _9 ] Duplex receptacle
5 y" ]6 l4 ^7 f( _ Single receptacle3 `: o( b+ N0 L
Split receptacle
0 |% E7 z# }/ ?' w: A2 @Service, consumer‘s
* _# ?9 D B! ^1 G! ~Service, supply
1 `0 g2 X+ H9 ]) cService box
! G) V0 O6 s4 M3 v0 T: Q3 PService room
' v% L: U; f& sSingle-dwelling4 a# w9 X- O# |; I1 f
Slow-burning as applied to conductor insulation$ [& D j. u6 V# H
Splitter( v# g' V( O) N" X% ?2 i' R
Starter
3 R1 }$ I; H1 I. |- a) Z( aSwitch
+ P [# B: t! T1 o6 F/ d1 p' w General-use switch/ v! Y9 w) B; U ?
Indicating switch8 u! P% v" H/ I" J0 _/ _
Isolating switch
" Z6 X! J3 O2 U Motor-circuit switch
$ }# Z0 Z( Y2 U+ g/ O& j' [% TSystem2 n8 x! m: r$ C8 X- I
Communication system7 @0 a& o; f# Z" U* E
Community antenna distribution system(CATV)
& M# N, Y" s5 [ Grounding system- h' Q- t Q% T% q
Underfloor raceway
e3 J6 C* t& i+ m; }Voltage:5 z0 K+ K( k! D& Q; J
Extra-low voltage
) n. J, V2 R7 U9 K- h/ O, r( s High voltage
2 c9 C" b0 M; S- N! t Low voltage. `2 D& I% f! r" U
Voltage of a circuit
5 X) h3 Z5 B# hVoltage-to-ground
+ S4 V2 Y! W$ i* X' hWireway: g% D! U' S2 Q
- F! E- k5 S8 T q ]: s+ [Section 2 GENERAL RULES
$ m8 w8 q% U% ~Administrative9 P! {: @+ N& L! B$ @
2-018 Reconnection! B* V* y, o# }$ f. m( o
2-030 Deviation or Postponement
; G; w3 D$ [% \: p: ^$ V3 lTechnical General
/ ^0 v. u! e5 u: _4 J; U" v6 n4 F2-106 Circuit Voltage-to-Ground – Dwelling units
7 J" W3 V5 f: ~$ P. W2-114 Soldering Fluxes
" c! i/ X( u+ Y! c2-116 AWG Sizes of conductors
, [' P/ {2 T0 J. R4 a' u2-124 Fire spread (see Appendices B and G)2 e5 {* g) ^; t; J+ R) c1 m* u
2-126 Flame Spread Requirements for Electrical Wiring and Cables (see Appendices B and G)
) s- @1 G2 X) @+ IProtection of Persons and Property) R2 C- q% Z5 `5 Y
2-202 Guarding of Bare Live Parts
6 R- P6 H$ G# Z# h& D6 J3 u/ [Maintenance and Operation
; r% \* L( J! m ]: ]0 E4 q$ L2-304 Disconnection
5 c# G/ F, G6 K r2 o2-306 Maintenance of Live Equipment
( |! c/ ~; @& G; ~8 hN 2-306 Shock and flash protection (see Appendix B), A' {: j* d( x% C/ Q2 U
2-308 Working Space About Electrical Equipment: Table-56
! ?* L1 b1 n/ B1 w9 V2-310 Entrance to, and Exit from, Working Space. j3 @7 O5 N: N: P* G' `
2-320 Drainage- s ?" Q; ^ v- g% u1 N
2-322 Electrical Equipment near combustible Gas Meters and other Devices8 w0 F7 t* S: m9 r2 v
Enclosures
+ t. ~1 F8 p+ r7 g7 r0 s2-400 Enclosures, Type Designations and Use: Table 65, (1)-(c) 7 j8 b7 ^7 A6 F/ P3 T) b+ k4 q& z
2-404 Marking of Motors: DP, WP, TE' u& w0 w5 ]4 P" ~! X5 t# w
% K" R0 W7 J. ESection 4 Conductors
6 }, _9 L1 w6 k7 \4-000 Scope/ @# [, S7 x# K) M+ ~! ~
4-002 Size of Conductors: 14#, 12#. r1 {) B1 S, p. Q. _" K
4-004 Ampacity of Wires and Cables: Table 1, 2, 3, 4, 5A, 5B, 5C, 360 F5 C4 `. _) s8 Q4 S
4-006 Insulated Conductors: Table 19# W% C- {& M# H8 p% {
4-010 Uses of Flexible Cord: Table 11) Y4 P' L& m' D
4-012 Sizes of Flexible Cord$ i8 H. l5 ^/ G$ o E9 ~
4-014 Ampacity of Flexible Cords: Table 12
. p% X; \7 ^( _+ _; f4-018 Equipment Wire
, d# o% E8 L! D0 Q" M8 p4-020 Insulation of Neutral Conductors! J2 y/ q2 M8 j e. e9 D5 f6 p
4-022 Size of Neutral conductor
6 \5 O4 A5 x# I' L4-024 Common Neutral Conductor
, n8 V" F9 K' B% y7 Q) t+ n. F" x O# ?4-028 Identification of Insulated Neutral Conductors Up to and Including No. 2 AWG Copper or Aluminum1 B& ?) u, \4 z8 l! m! _; V
4-030 Identification of Insulated Neutral Conductors Larger Than No. 2 AWG Copper or Aluminum7 v+ L2 B3 |# w5 @
4-032 Identification of Type MI Neutral Conductors- l- ]* p( i; f
4-034 Use of Identified Conductors
+ O S9 ]/ ]) W% A( a5 e2 s) ? I4-036 Colour of Conductors: Phase A, B, C, …2 `, X a1 S+ x3 p, r# M, }) u
! f c8 v0 _3 C2 }) E& {
Section 6 Services and Service Equipment. J/ P& Q; d/ D! j0 b0 ?$ S9 I
General
5 O9 M& O. T8 {) p; t6-102 Number of Supply Services Permitted9 B& S6 j5 Y3 p
6-104 Number of Consumer’s Services Permitted in or on a Building- Z6 g1 O) x. y5 V: h
6-108 Supply Service from an Electric Railway System, N7 M) P0 ]0 P, Z
6-110 Three-wire Consumer’s Services : \) ?/ |; E6 D4 K7 ]
6-112 Support for the Attachment of Overhead Supply or Consumer’s Service Conductors; h* }9 p4 J' \
6-114 Methods of terminating conductors at consumer’s service4 J9 }, w& z. j5 X3 [( w8 h8 i/ D
6-116 Consumer’s Service Head Location
' b+ i5 q. l# E3 M1 Y2 VControl and Protective Equipment# B( F7 S' l( _* u& J3 Z
6-200 Service Equipment
' D7 Q N9 X3 C3 |/ x; `" ^6-206 Consumer’s Service Equipment Location (1)(d)(ii), (e)
% d$ F$ G/ X9 `+ G3 e( M2 |2 x6-208 Consumer’s Service Conductors Location2 ]; T T9 |3 g: L1 y- Z+ Z \/ Z
6-210 Oil switches and Oil Circuit Breakers Used as Consumer’s Service Switches
" d y$ \' D6 g5 e; @9 `( @6-212 Wiring Space in Enclosures
% A) Q$ b: _7 ]5 U( z6-214 Marking of Service Boxes
- J, h7 S: r% m, W' K" YWiring Methods1 T+ K K, r: ~- C- }7 c1 V. w" P3 e
6-300 Underground Consumer’s Services
1 ^' E* c2 T/ j, t7 a3 F6-302 Overhead Consumer’s Service Conductors+ x$ q. o% C( O: c- s \' _1 ~" _
6-304 Use Mineral-Insulated and Aluminum-Sheathed Cable
* t, Q( N1 F' I6 g: ?6-306 Consumer’s Service Raceways& {% H- O/ G3 d
6-308 Use of Bare Neutral in Consumer’s Service3 l# ]& y4 z, E; G+ i: M! n; C
6-310 Use of Joints in Consumer’s Service Neutral Conductors
5 W3 t1 u3 W5 W6-312 Condensation in Consumer’s Service Raceway
, R0 G& c8 C+ L$ [4 |$ F/ ~% y8 IMetering Equipment* [& E5 w# Q1 k0 \. r
6-400 Metering Equipment
/ H4 j* }! {) @0 H6-402 Method of Installing Meter Loops
& f' D% K6 M- |6-404 Enclosures for Instrument Transformers& P! q& l: D2 n" U
6-408 Location of Meters
8 K, `5 ]% `4 ^3 T# D/ z* q N* P0 X
Section 8 Circuit Loading and Demand Factors
% { t- ^$ X. C( K; ~General, ~ J8 V, y( g$ r! z4 S
8-100 Current Calculations
/ a! ~1 i; g) P1 [8-102 Voltage Drop ( see Appendix D)
3 h5 t: e. {+ k% E0 C8-104 Maximum Circuit Loading
% f6 h8 ?$ k) o; |/ V8-108 Number of Branch Circuit Positions2 m8 X7 ?8 S" K1 ?* e2 s
8-110 Determination of Areas4 p. s- v3 {* e" E
Services and Feeders0 Y, ]- |5 u" d9 L& O G- e
8-200 Single Dwellings (see Appendix B)
5 l4 T+ W- l; l7 }) ^6 b/ p: n8-202 Apartment and Similar Buildings
# L* O6 ]3 [. P, n, z9 u2 M8-204 Schools. K; ~1 f$ l- J4 V6 L& S" ?. V
8-206 Hospitals8 }4 J+ a, l: S% p. Z
8-208 Hotels, Motels, Dormitories, and Buildings of Similar Occupancy2 M5 |2 q$ N& I
8-210 Other Types of Occupancy (Table 14)) j" j6 O- r; r
8-212 Special Lighting Circuits
6 J8 @( F& K0 c8 f! x! K0 BBranch Circuits
& o+ [' |6 F) C8-300 Branch Circuits Supplying Electric Ranges! a, q8 M. _+ q6 H
8-302 Connected Loads
7 N, m- ?& p S/ T4 T* W5 u. y4 W6 m; x2 l0 {$ ~
Section 10 Grounding and Bonding; L6 ^5 u; l% A5 q, o1 G; @0 c
Scope and Object/ ?8 q* c2 L/ k1 }$ h* p9 k/ h
10-002 Object8 ~- Z x; { r% C) l
System and Circuit Grounding
- Z; o. s+ j# W) y1 a( t7 Q1 B10-102 Two-Wire Direct-Current Systems
# j& j$ S* X P$ W( A10-104 Three-Wire Direct-Current Systems3 T) M7 o1 \- t
10-106 Alternating-Current Systems6 K- j1 x0 W! P9 h) O' r/ P t
10-110 Electric Crane Circuits# }5 G2 _: W. f
10-114 Circuits of Less Than 50 V* k' u# G. ~9 t7 e
10-116 Instrument Transformer Circuits3 w! V2 \9 o) p1 U2 g
Grounding Connections for Systems and Circuits4 z5 I( L* L$ W$ t
10-200 Current Over Grounding and Bonding Conductors. | u# _! S% E
10-204 Grounding Connections for Alternating-Current Systems
1 d* A' V0 J% p10-206 Grounding Connections for Isolated Systems, r" K* o/ c9 s" u
10-210 Conductor to be Grounded
% J! n" b5 N$ k4 v h8 f3 X0 VConductor Enclosure Bonding# ^6 I. R4 h/ I
10-302 Other Conductor Enclosures
0 [8 v1 h2 {0 Z% x# ^0 QN 10-304- B( n7 Z" V6 r7 g) a1 @1 I
Equipment Bonding
( T N* e/ W8 P, W' h' W j10-400 Fixed Equipment, General
+ \ W$ p. M- K/ U$ n. e10-402 Fixed Equipment, Specific (3), (4)
5 d- O. R. Q; D10-404 In Nonmetallic Wiring Systems! j5 \1 b4 K+ U. S
10-406 Non-electrical Equipment
2 L- N; J6 i0 {, @10-408 Portable Equipment (4)(b)
9 A; a4 H# U4 R0 W! b7 A/ z% P+ D10-410 Instrument Transformer Cases# n/ N2 D v3 m5 s( K" O
10-412 Cases of Instruments, Meters, and Relays – Operating Voltage 750 V or Less
/ X2 p5 Z* i9 V5 l$ f9 l4 ~10-414 Cases of Instruments, Meters, and Relays – Operating Voltage Over 750 V
. O" e6 u$ A2 x7 T( zMethods of Grounding
+ C/ C# `' S& E9 M& e7 q W10-500 Effective grounding (see Appendix B)
3 _! j6 {+ x0 L0 C. X2 I10-502 Common grounding conductors
/ v _% p X7 ^' u" p4 |) M9 Z, \10-504 Common grounding electrodes) \$ p$ S5 @: x5 J! H/ ~
Bonding Methods
/ ^( i6 u" j' X% i10-600 Clean Surfaces
% \9 \, i6 z3 b9 W+ l5 A/ j! z# g10-604 Bonding at Service Equipment
4 H3 \$ _7 c6 F. t/ P" p+ Z10-606 Means of Assuring Continuity at Service Equipment7 z1 s, P6 c3 R. E
10-610 Bonding at Other Than Service Equipment. R+ r0 L" u8 E6 D2 b4 d+ x2 N) W
10-612 Loosely Jointed Metal Raceways' t$ y( {* W: C1 F3 i$ m: R, I" P
10-614 Bonding Jumpers Table 41 L) I, X+ d& C. L3 |* X
Grounding Electrodes6 F+ f4 Z0 n$ ^8 j& q
10-700 Grounding Electrodes- O5 \5 G( T3 u. S: o
10-702 Artificial Grounding Electrodes$ r* W* @* ]! v
N 10-700 & 10-702
/ [* B) ?1 I/ X6 d6 y ` ^10-706 Spacing or Bonding Electrical and Lightning Rod Systems (Appendix G)
' j3 O! N4 w8 B% ?3 a {N 10-702
" O3 _4 s& L, l/ p8 I2 G4 q10-708 Spacing and Bonding of Electrical, Communication, and Community Antenna Distribution System Grounding$ H% N& _ n4 }& l. l
N 10-702
6 Q% \. T8 v5 L* f: L+ O* S9 K0 J10-710 Use of Lightning Rods (Appendices B and G)
4 R: H1 b6 ?: H# v bN 10-706" |( X2 }+ y( O$ Q) v8 t
Grounding and Bonding Conductors& ~% q6 T5 i; Q4 _3 D
10-800 Continuity of Grounding and Bonding Conductors
% u! u2 @0 m; N7 o10-802 Material for System Grounding Conductors o2 f* Q; u, Z+ T
10-804 Material for Bonding Conductors' M2 [2 V! _: v. f& K
10-806 Installation of System Grounding Conductors7 j: P3 n8 u' O& A- Z1 r) S" q O
10-808 Installation of Equipment Bonding Conductors& O X9 r, ?1 S# s) r) ?
10-810 Grounding Conductor Size for DC Circuits
: {# v# s3 s+ O# }+ n10-812 Grounding Conductor Size for AC Systems (see Appendix B)
/ I7 h7 [& K! F7 e8 k( l ]10-814 Bonding Conductor Size (Appendix B)
7 Q( T( Z! b2 L6 ~; g10-816 Bonding Conductor Size for Circuits Extended to Portable, Pendant, or Fixed Equipment# B2 j0 s( p: {2 D; S
10-818 Bonding Conductor for Outline Lighting
" _2 N( c' Q* ^: W. P5 T4 e10-820 Bonding Conductor Size for Instrument Transformers
0 D! z8 C6 J V) QGrounding and Bonding Conductor Connections' Y5 X8 S i9 `* W
10-902 Grounding Conduct Connection to Water Pipe Electrodes
I- [! I0 t2 f; L; \5 v10-906 Bonding conductor connection to circuits and equipment
1 ` B, F2 B+ e+ t1 h10-908 Grounding Conductor Connection to Electrodes
( d, h9 Y! b% L3 D# I- NLightning Arresters) ^2 ?2 }& t$ c/ {- D
10-1000 Lightning Arresters on Secondary Services – 750V or Less5 G- q% V3 v* Q3 P/ O) p4 O+ o1 Y
6 s5 j) r4 R8 O+ y" J, ZSection 12 – Wiring Methods a+ ?% C5 C9 C) N9 t' u
Scope
: I1 U4 ]9 g1 a8 d5 O6 L12-000 Scope (Appendix B)
1 K, I) K' ~- p* F# l: |General Requirement; Y, k% f2 I2 O" K$ f
12-010 Wiring in Ducts and Plenum Chambers2 g$ y% M U* ^
12-012 Underground Installations (Appendix B)
* `0 G0 ~3 A* ^( f3 L+ I; m12-016 Lightning Rod Conductors
& O: T. @. {' }- E) k" dConductors - General. h# E1 p$ a% o) Q& I. y5 p
12-100 Types of Conductors (Appendix B) Table 19
|7 |+ G; z2 b V9 P12-102 Thermoplastic-Insulated Conductors- _6 o. I1 b) n- H Y' Q
12-104 Flame Tested Coverings
$ s' ^+ ~0 R3 V E; w- [+ j12-106 Multi- and Single- Conductor Cables4 ]( E! T9 u6 i. \+ w. q
12-108 Conductors in Parallel (Appendix B)/ W% }/ }: N6 r3 u5 ^, |
12-112 Conductor Joints and Splices
/ Q* @ [9 h2 [$ k12-114 Ends of insulated conductors1 U/ j6 N1 n" X; [' _1 Q& r# R
12-116 Termination of Conductors (Appendix B)
: f( _( i2 g( @/ X, v# l9 t12-118 Termination and Splicing of Aluminum Conductors
/ w7 Q+ `9 o) C12-120 Supporting of Conductors - Table 21
3 y6 E ^8 C, G; u; H" Z) S2 U3 uOpen Wiring
$ o7 R' v( i- ~: m, e( o2 h' e12-204 Spacing of Conductors. ?) U( d$ x9 G9 I1 Q% ~4 R
12-206 Conductor Supports$ B4 t) T5 l' n! J; \) u- G
12-208 Conductors on Flat Surfaces$ q8 N2 x n! _% f ]9 G
12-212 Protection from Mechanical Injury: w, u& ^- z2 n2 T: o
Exposed Wiring on Exteriors of buildings and between Buildings on the same Premises
6 n! n, N, v. e12-308 Minimum Size of Overhead Conductors5 x- M. h: J7 w. l- G# ?
12-318 Use of Neutral Supported Cables* e) M) M* M6 B, F7 M) m: P: Y. X8 c
Nonmetallic Sheathed Cable# Q3 T. Q& ]/ b* v( i- X' j
12-502 Maximum Voltage
1 Y" _8 W- H. W& X/ K0 a' E12-510 Running of cable between Boxes and Fittings (Appendix G)
: c8 G3 W) l* h( @! X12-514 Protection on joists and rafters
6 a! s6 p7 N% O3 F) j( A12-516 Protection for Cable in Concealed Installations (Appendix G)
: b5 B" @8 y; n3 P12-522 Where Outlet Boxes Are Not Required
* R% g8 }: `" S$ m: V) S( I6 N. GArmoured Cable
- |% b4 @) q/ z+ i+ p7 M0 }12-602 Use (Appendix B)
$ }2 j3 n( S( r4 l4 `5 ?( X12-604 Protection for Armoured Cables in Lanes# I2 j( q* ], R! Y7 _" C% K) ~% D, @
12-606 Use of Thermoplastic Covered Armoured Cable) J% I( C+ i( e8 i* e
12-608 Continuity of Armoured Cable& K+ L0 z% H5 T- n3 v6 U! S m
12-610 Terminating Armoured Cable
5 _8 ^/ M7 w/ l C/ x% `3 ~12-612 Proximity to Knob-and-Tube and Nonmetallic Sheathed Cable Systems
! d6 L& p: ~8 [4 M12-614 Radii of Bends in Armoured Cables! O. o3 j) n& s; ]5 c
12-616 Concealed Armoured Cable Installation
- V6 o, Z, R1 Y: S3 o) c+ i3 T6 i12-618 Running of Cable between Boxes, Etc6 `) ~, i4 c" [/ a' p" H/ d
Mineral-Insulated and Aluminum-Sheathed Cable1 I! G- }( H8 J. ^1 B
12-702 Use
- Z# m" I. m# Y8 t- I12-704 Use When Embedded9 J) } O T/ I# T/ \) V
12-706 Method of Supporting
& c" X B) Q$ ~. j( r+ M12-708 Direct Earth Burial
7 q! p/ a) A& J12-710 Mechanical Protection/ E4 C7 {# m# v' ~8 b6 f( e
12-712 Radii of Bends
' M/ \ w# X; j3 K12-714 Termination of Mineral-Insulated Cable (Appendix B)
3 b% @6 z. J) m: l1 A9 q12-716 Connection to Other Forms of Wiring
- @7 B5 X% {1 `Flat Conductor Cable Type FCC
( `1 H3 ?. n: o- T6 d! j r, C12-804 Use Permitted
' H$ |! D2 {' ^$ v9 U2 p12-806 Use Prohibited
/ m; N& W3 k* r8 @$ P12-818 Anchoring* Z! ?( }! G+ U0 G
12-820 Crossings& G5 D" }2 M$ f2 ]; a# e6 _, X* D
Raceways - General1 D/ g0 I! H x# h1 f7 l% h( b
12-904 Conductors in Raceways
0 X) g: {7 l" q7 G! i" h12-906 Protection of Conductors at Ends of Raceways, ^+ |: X; ]1 R+ L+ F6 G
12-908 Inserting Conductors in Raceways
6 T/ K/ s5 N& `5 }1 B% b. t12-910 Joints or Splices Within Raceways: c' F6 ?6 F) O+ G' C5 u
12-912 Stranding of Conductors
! O5 D2 F/ E& {) d8 X6 C6 V12-914 Electrical Continuity of Raceways
$ \# K& E# W: K5 ?. m2 F1 I12-922 Radii of Bends in Raceways/ H" s" d4 E4 g4 q4 s. y; U
N 12-922 Radii of Bends in Raceways Table 7
! W2 f; |1 p; g' c, J# a" F' z; s# l12-932 Protection for Raceways in Lanes
h: x7 `# i7 b& ? M& k+ z12-936 Raceway Completely Installed Before Conductors are Installed (Appendix B)) M4 n: [* g$ w# _) c g) t
12-938 Capping of Unused Raceways7 b+ u8 m5 i, g0 o% h8 ^
12-940 Maximum Number of Bends in Raceways
9 d% o+ i4 q4 E6 tRigid and Flexible Metal Conduit( j. D# k# h8 b& i- }
12-1002 Use
9 n# `! V# I2 C5 u/ z k5 a8 |# Y# E12-1004 Minimum Size of Conduits
, b9 B6 A3 h% M12-1006 Conduit Threads (Appendix B)
8 ~0 M: F2 ? k- `% ~# ]12-1008 Thread Engagement( p& z; L; j$ j3 x& n8 O
12-1010 Maximum Spacing of Conduit Supports
5 b) u- r% e8 A2 F0 M12-1012 Expansion and Contraction of Conduits (Appendix B)
* d5 o, t: `5 j7 R6 I12-1014 Conductors in Conduit (Appendix B) (4) table 8, table 9, table 10; (5) table 6 3 o* f# I9 g$ d; n. y2 n( R
Rigid PVC Conduit and Rigid HFT Conduit6 Y% M5 J8 x0 M' F7 a% H
12-1100 Use# G3 y/ u# m8 E. @0 k
12-1102 Restrictions on Use
- C3 T* D' k+ N4 m' L' X) m, g# f7 i, e( ~12-1104 Temperature Limitations (Appendix B)
; K& i0 w3 r& |8 Z* u0 |12-1108 Field Bends (Appendix B), (2)
( p, c% N) W4 V: u6 O12-1110 Support of Luminaires
8 c' B' D0 c1 j. E( g- q7 S12-1112 Fittings) Y D! y2 i; a2 E0 X; Y
12-1114 Maximum Spacing of Conduit Supports
! G+ y9 `# |- Y" n6 C' W12-1116 Support of Equipment; n3 m+ t/ [0 w5 d0 n
12-1118 Expansion Joints (Appendix B example)
2 \0 Z0 e/ y0 lRigid RTRC Conduit
/ E: m$ l0 T# v9 F0 w0 e0 Z# D12-1210 Temperature Limitations6 H; `4 k& U/ n: b9 O* f" Q
12-1214 Expansion Joints (Appendix B)5 T/ ^0 o7 K9 y' l2 Q$ L ?
Liquid-Tight Flexible Conduit
\* d8 u2 `: e- G12-1302 Use of Liquid-Tight Flexible Conduit
: Y' F0 l$ |$ q8 I1 f7 S [12-1304 Maximum Number of Conductors
& u$ t! p; \* N12-1306 Provisions for Bonding" h) r, m7 Z5 F, u9 q1 F
Electrical Metallic Tubing6 j2 T$ q" H+ [, H9 E9 f
12-1402 Use
, ?/ m6 q( ?8 H! }* j! @: X( L# F12-1404 Supports
2 z- s6 H9 L& k2 o5 m12-1406 Minimum Tubing Size
' M' f; Z2 W3 m% `% S; v) |0 E) ]4 Q% D& O12-1408 Maximum Number of Conductors9 r6 U# b& a$ x5 v
12-1410 Connections and Couplings
% S \# K# E: l p3 c12-1412 Radii of Bends in Tubing1 a: D7 E1 R' I8 P8 t
N Table 7 ?# f% R9 \2 B& O& S
Electrical Nonmetallic Tubing
/ u4 D, _* q& r& b: N6 B$ J12-1516 Provision for Bonding Continuity9 u$ i8 [- c' H3 i9 }0 l- I8 o+ m
N 12-15144 r& ^1 q1 e8 }' M1 P
Surface Raceways
( s4 a1 f$ ~! v; _2 H12-1602 Use of Surface Raceway (Appendix B)
, V: H. L! x/ R: M12-1604 Temperature Limitations' k {+ B3 e0 i
12-1606 Conductors in Surface Raceways (Appendix B)
" I5 P- u& ?! c# {# D' ^12-1608 Maximum Voltage
* o6 K+ H1 w3 }12-1610 Joints and splices " R4 d' Q- \9 F. w7 ~) f( S2 T7 y
Underfloor Raceways
4 K0 g9 V. y) a* R$ Q12-1712 Discontinued Outlets in Underfloor Raceways
- ]$ Z: }% o% G/ w+ V$ qCellular Floors
) N. G! [4 U3 Z. \12-1804 Maximum Conductor Size in Cellular Floor
# w/ l7 T5 z l0 m6 N7 r a. f12-1820 Cellular floor discontinued outlets
7 r2 I% v0 T, `* M# a/ g! }& }0 rAuxiliary Gutters$ g& L4 {3 K+ { [
12-1900 Where Auxiliary Gutters Are Used to Supplement Wiring Spaces8 a; U8 e' {8 f& w+ l: {
12-1902 Auxiliary Gutter Supports8 W' X. U1 I# B
12-1904 Auxiliary Gutter Cross-Sectional Area
: h: L% ]! |- u- V* _* bBusways and Splitters
& R9 Y% _) ?/ h# v12-2004 AC Circuits in Busways and Splitters' W0 p `5 q: F
12-2006 Busway and Splitter Supports
( d" C( h) b7 ?+ r7 q12-2008 Method of Installation of Busways, b; V& L) {- h& \5 z; s
12-2012 Reduction in Size of Busways2 c s# v$ A5 w) E$ \4 d' G) O, A
12-2014 Length of Busways Used as Branch Circuits0 ~+ u7 Z7 D& M
12-2018 Taps in Splitters
- o1 x- _0 l( CWireways
+ |" ]9 V2 r# Q0 U: J0 C12-2104 Conductors in Wireways) t5 y( W; J4 Y. c
12-2106 Taps and Splices in Wireways
2 z( Z2 }4 L8 [: L& N( k) h- k# r Cable Trays
$ C1 y( z d0 _5 s' J7 @12-2200 Method of Installation (Appendix B). M5 U. k F% E- A6 F! v
12-2204 Joints and Splices Within Cable Trays3 l+ b8 m( s4 F/ p* J4 Q
12-2208 Provisions for Bonding: P6 O+ h: l4 J
12-2210 Ampacities of Conductors in Cable Trays6 k/ N6 i! b+ c; S" i' v
Installations of Boxes, Cabinets, Outlets, and Terminal Fittings
2 F; {. e0 _- X+ h4 f" {12-3000 Maximum Number of Outlets Per Circuit3 X O$ M! X s
N 8-304& i5 Z7 _* P1 u% r% K
12-3002 Outlet Boxes (Appendix B), ?& S7 g$ [9 |: k
N 12-3000- j. u) ^2 }2 M2 E& C
12-3004 Outlet Box Covers
% J, F) g0 q3 b# xN 12-3002
" X1 h+ H- L/ K% x6 u12-3010 Boxes in Concrete Construction; h4 l: g3 g5 Y8 `& L' r, B, h" A
N 12-3008
# Q% |* c$ l! M( [) b: j12-3012 Outlet Box Supports1 S, k D1 Z a9 `
N 12-3010
" R7 f: `! R8 `+ j5 U12-3016 Accessibility of Junction Boxes
4 \2 E) N" q% E4 EN 12-3014
, \) H. S! ^5 a9 b: ~12-3018 Flush Boxes, cabinets, and Fittings7 N8 c6 s2 [% g3 f0 m7 Q# d
N 12-3016
6 O/ ^+ S# |2 W0 Q3 r& R12-3024 Entrance of conductors into Boxes, Cabinets, and Fittings (Appendix B)
6 ~; @* A- p7 j! n. R* @1 ^5 }1 jN 12-3022
) P: G8 d& `5 z. H, D12-3036 Maximum Number of conductors in a Box - Table 230 S o. p/ E4 `; a2 {) D
N 12-3034, O6 E" W) A. r) }/ [/ ~ E& }
12-3038 Pull Box or Junction box Sizes
7 ~/ H% l+ j7 h' G. O& ?7 A" dN 12-3036- p6 A m8 c3 ~5 g- Q! @
8 W) t% P) E( ZSection 14 Protection and Control" N3 ?2 Q* z7 F5 z, Q C/ a
General Requirement
/ p2 L8 u7 K L! N W14-010 Protective and Control Devices Required
2 o X; N K! J14-016 Connection of Devices
) m9 z: [% P# h1 J7 J Protective Devices – General' D6 m% {6 H) c) B$ y9 N" S6 g
14-100 Overcurrent Devices Required1 j- s! o, B$ [" h2 G7 ~
14-102 Ground Fault Protection (Appendix B)
# K; }0 d$ C' b' g0 |; I14-104 Rating of Overcurrent Devices (Appendix B) Table 13( L% L9 m/ X% ?) Z. @
14-112 Overcurrent Devices in Parallel
, U2 h& Y' t" n( {. W: [Fuses
' [6 B/ D, A; p1 \14-200 Time-Delay and Low-Melting Point Fuses/ s* I) W" V1 m! o( _2 h- h* Q0 A
14-202 Use of Plug Fuses
) V" t8 ^$ f9 r; Q" F. c9 g* d8 o" d' n8 [14-208 Rating of Fuses& h& W# U4 V$ h6 A5 I. h3 \% V# p' o7 {( y% @
14-212 Use of Fuses (Appendix B)" g! r4 n1 g7 ?5 I! k
Circuit Breakers
' k. O( m. }. d9 }& o8 d7 w' ~14-300 Circuit Breakers, General+ p2 n$ z, v* ^4 ^
14-306 Tripping Elements for Circuit Breakers% g f9 _7 c0 n/ P) _
14-308 Battery Control Power for Circuit Breakers
8 v2 q. s/ o1 KControl Devices - General u- b2 p$ J* ^( v6 ?8 _. G
14-402 Disconnecting Means Required for Fused Circuits& a1 ?& W' l2 k& a" \
Control Devices - Switches! e, D4 H- g4 V# B' w% e1 p7 `7 G
14-502 Mounting of knife Switches
9 ]! i7 E8 E6 I" x- o1 C14-504 Maximum Rating of Switches) c0 }% `4 y O8 S$ `4 G
14-508 Rating of General-Use AC/DC Switches (Appendix B)
& a: b. d2 F1 T14-512 Manually Operated General-Use 347V AC Switches (Appendix B)4 t' ?& l3 ^! ^" {
Solid State Devices4 [, E* t, ~4 M5 x% [
14-700 Restriction of Use
! a+ r- h9 p' U: n14-702 Disconnecting Means Required: v1 i0 s5 u9 p4 j$ O
1 B. v6 W# U6 k% Z/ t
Section 16 Class 1 and Class 2 Circuits' o3 v1 Z2 I* H
General* O3 `- ~" x0 Q" ?, B6 Q: w0 j/ N
16-004 Class 1 Extra-Low-Voltage Power Circuits3 ^% W9 K" `; _: J' f% ?/ M
16-006 Class 2 Low-Energy Power Circuits
- g8 u5 w! g8 V) i5 e; S# y16-012 Circuits in Communication Cables
2 i5 X$ K) l6 QClass 1 Circuits, z2 B( L) l' k
16-100 Limitation of Class 1 Circuits
4 @+ q) {+ H8 N: ]16-104 Overcurrent Protection of Class 1 Circuits
, z0 e; y: z {7 v4 b' |# r# H16-106 Location of Overcurrent Devices in Class 1 Circuits9 Z: ]8 z5 r- P- j9 e2 ~2 V
16-108 Class 1 Extra-Low-Voltage Power Circuit Sources Including Transformers7 t/ p; C2 f7 I; F' ^2 Q' @
16-110 Conductor Material and Sizes1 d0 `3 C4 Q; y5 @8 L
16-112 Insulated Conductors for Class 1 Wiring
$ U+ z E9 q/ R8 E* NClass 2 Circuits
' E9 b- `9 W8 O H& l16-200 Limitations of Class 2 Circuits (Appendix B)
5 y% v9 A/ j m+ u5 s# z16-204 Marking
B+ n( |* x" D- w16-206 Overcurrent Protection for Class 2 Circuits8 E4 T8 p s7 O6 p8 l
16-210 Conductors for Class 2 Circuit Wiring (Appendix B)( _$ q5 B5 K3 m& U* Q
ELC: extra-low-voltage cable
% c: }" Z' b- i% n: [16-212 Separation of Class 2 Circuit Conductors from Other Circuits
* O) g3 {( u+ b. A/ M$ @8 A, V8 ?" m# m3 z( N
Section 18 Hazardous Locations
; M# u2 q; {: D/ x& T7 IScope and Introduction
, j8 U( S* C; ?* F& c1 a8 ?) }, q18-004 Classification
* w8 v$ Q0 U H. f5 o, q# c18-006 Division of Class I Locations (Appendices B and J)) l; J m* Z# C3 S
18-008 Division of Class II Locations (Appendix B)/ { O% U1 T# q( ^. L+ c
18-010 Division of Class III Locations (Appendix B)
7 W0 c) O5 ^0 q9 [( ZGeneral! o8 x7 o6 I. h) n
18-062 Metal-Covered Cable (Appendix B)
) d6 y+ L2 f# L5 WInstallations in Class 1, Zone 1 Location) B8 O" f% [+ c' ]
18-108 Sealing, Class I, Zone I (Appendix B)
1 r% n0 V/ l1 W6 N% z* D; z- f2 h6 K3 Y3 A& n3 I) N/ k
Section 20 Flammable Liquid and Gas Dispensing and Service Stations, Garages, Bulk Storage Plants, Finishing Processes, and Aircraft Hangars' V1 ]' o* p2 I2 U' N! { t
Gasoline Dispensing and Service Stations G) K# l/ X$ \3 _2 b- G
20-002 General! q3 R1 i; G0 ]. K+ X1 E
20-004 Hazardous Area (Appendix B)
4 }/ M! R" o! A7 w8 J. }Propane Dispensing, Container Filling, and Storage7 G8 _# N$ y2 [! m
20-034 Hazardous Areas - Table 63
6 I7 Y5 u8 h' PCompressed Natural Gas Refuelling Stations and Compressor and Storage Facilities/ i. |/ P, H8 ? S @
20-062 Hazardous Areas
, _- s" s. H5 R8 k$ w7 Q6 kCommercial Garages – Repairs and Storage
: j" W8 ^5 h9 g {20-100 Scope8 }* I% Y/ Q# E8 y7 W/ t
20-102 Hazardous Areas (1) ! t. r5 ^0 u0 h, d+ \. \6 w
8 N; ?2 L# X' C
Section 24 Patient Care Areas
1 k, E. _+ z/ O5 w4 W" `24-000 Scope (Appendix B)/ x3 |0 F9 J: b4 {8 V( V! a) g& {
24-002 Special Terminology (Appendix B). V8 y) C: b1 M/ C ]; t
Patient care area' Q( ^' a+ I9 ^% ]2 a* ~
Patient Care Areas
; P6 g7 y& b% o0 n) y* M& Y6 U! b24-106 Receptacles in Basic Care Areas (Appendix B)5 M3 u& d! }% v6 o$ V9 _
Isolated Systems1 O2 L1 N# ^+ T4 Z7 ^2 y' {4 f
24-204 Single-Phase Isolated Circuits (Appendix B)9 S6 ^- w! b0 ?6 ]5 l4 |
24-206/ y2 c) {! x6 _
# H3 R9 m" d8 l6 r% _3 I4 C
Section 26 Installation of Electrical Equipment
. x0 i6 g: H; b7 ~( Z: F) ZGeneral2 _, Q# e5 [& j5 x& s% T
26-004 Equipment Over Combustible Surfaces (Appendix B), n* @) f. G; X: Q
26-012 Dielectric Liquid-Filled Equipment, Indoors (Appendices B and G)# I% t$ S6 o' p# N2 L0 S
Isolating Switches
1 H3 E! g' a8 w ?26-100 Location of Isolating Switches
- X: L. Q4 @) s3 L$ ^$ `Capacitors
5 k5 O/ X7 Y3 n$ C4 S3 U. D26-204 Guarding of Capacitors
/ V' K6 C: y9 \- a- {- \26-206 Grounding of Capacitors
$ W. E" g H% r6 ?26-208 Conductor Size for Capacitors& c+ [0 f$ M8 W7 a4 ?' h
26-210 Overcurrent Protection (Appendix B)
$ z4 Z* v1 p$ i" j26-212 Disconnecting Means for Capacitor Feeders or Branch Circuits) J. K$ H ^( ]4 U) v0 Y' }: H. O
26-214 Rating of the Disconnecting Means for Capacitor Feeders or Branch Circuits5 Y! T' L$ v; U" U Q
26-216 Rating of Contactors for Capacitor Feeders or Branch Circuits
2 N& [9 V! N2 [2 [6 K+ S26-218 Special Provisions for Motor Circuit Capacitors
_4 j) e i. P( `) j26-222 Drainage of Stored Charge of Capacitors
( E0 c8 g! }# J5 @0 i# cTransformers5 Q0 C+ _) `' I9 l( b2 |
26-240 Transformers, General
3 U1 | q6 K/ w26-242 Outdoor Transformer Installations h, E, e p N+ E+ l Q
26-244 Transformers, Mounted on Roofs (Appendix B), n: M4 D; h: v$ O9 {5 L K9 a; Z
26-246 Dielectric Liquid-Filled Transformers Indoors (Appendix B)
) Y# R. c2 u$ u. Z% s1 r; E26-248 Dry-Core, Open-Ventilated Type Transformers
& {0 ?1 C) Q, [: b- V5 R& E6 \26-250 Disconnecting Means for Transformers$ t* @: C. ~3 ^1 |
26-252 Overcurrent Protection for Power and Distribution Transformers Rated Over 750V, p' a! y& Y) b Q9 L1 s
26-254 Overcurrent Protection for Power and Distribution Transformers Rated 750V or Less, Other than Dry Type Transformers; E- B, N4 {: g
26-256 Overcurrent Protection for Dry-Type Transformers Rated 750V or Less (Appendix B)) o+ T+ @* \6 w) Q
26-258 Conductor Size for Transformers
/ ]: c( v9 H" P4 E26-260 Overcurrent Protection of Instrument Voltage Transformers (Appendix B)- ~& |' ], G9 G: K1 y3 c) P1 |
26-262 Marking of Transformers" {! Y) H3 e8 u9 r* M ?5 _
26-264 Auto-Transformers/ @$ K6 `, O$ e2 \* r" ]% e! G y
Fences5 o& d& q v- M# _1 | Y, Y
26-302 Clearance of Equipment - Table 33# n1 a4 q2 \- s" d5 K/ D( H+ L
Panelboards6 t8 p: r) u5 o* R, r
26-400 Panelboards in Dwelling Units (Appendix B)( D0 y% i; M6 s
26-402 Location of Panelboards (Appendix G)6 t0 |5 t. W/ F
Lightning Arresters. R' ]$ d: p* `% ]
26-508 Connection of Lightning Arresters
- N! X" N- n) D5 n1 \! S4 _Storage Batteries
3 I7 a! K4 M' b) _& @. O26-542 Special Terminology
$ y3 j6 M# l) s0 Y26-550 Battery Installation z! {' }* k. y! ]1 \7 Q
26-552 Wiring to Batteries
0 v0 l4 F8 ~- }% i9 u/ VArc Lamps2 J1 v( f8 T7 i. J$ W4 r3 M
26-600 Location of Arc Lamps9 q* [3 ?5 E/ d- G5 \2 T
26-602 Conductors to Arc Lamps# m7 |. y4 D" i- a5 L3 s
26-608 Globes and Spark Arresters9 ^1 W d( v! K9 y# v$ j
Receptacles
$ f7 ^7 ~; k% g/ c26-700 General (Appendix B)) D$ t! d* n, A1 Y X
26-702 Receptacles Exposed to the Weather
' Z0 r+ y, k* Q4 T+ L; KReceptacles in Residential Occupancies
8 _8 k# T, e% O3 \0 w* h26-710 General (Appendices B and G)
. m( e% @. ~6 S26-712 Receptacles in Dwelling Units (Appendices B and G)8 z! g# m4 u' B! B6 P
26-714 Receptacles in Single Dwellings (Appendices B and G)
! Z* S6 ]5 \& H. D2 W1 u: RBranch Circuits in Residential Occupancies+ B$ b* Y( q/ O/ H
26-720 General
" c( M* x1 y8 z26-722 Branch Circuits in Dwelling Units4 k, w3 B4 s8 R% A* e; N0 I
26-724 Branch Circuits in Single Dwellings, b; w4 v5 N; @" t1 S2 K: z
26-726 Alternative to Split Receptacles and Multi-Wire Branch Circuits in Kitchens (Appendix B)
6 K$ G/ _8 P+ ?9 q, @3 g/ `3 HN 26-720 (F)( e0 U( A& r9 ~; b, k5 P
Electric Heating and Cooking Appliances
$ I1 y; n( i5 p5 M/ `8 _0 C( h( G26-744 Supply connections for Appliances
4 F8 G( ]) @' X d26-750 Installation of Storage-Tank Water Heaters
( e% ~2 t! U' M/ t. }26-752 Infrared Drying Lamps
& W0 o0 H# \4 `4 G2 S" ?6 z% J0 i* h: r2 P3 c8 j: Y* j* t
Section 28 Motors and Generators8 w% S, v2 p! M+ N3 r4 W1 {: }
General
, x: h" y+ c: M c; d, J* P28-010 Special Terminology
) x v3 R% f& z! c. OHermetic refrigerant motor compressor; Z6 J$ J& m. e/ d; u
Locked rotor current rating1 ?' a7 u2 j2 [/ X8 m7 X+ l
Service Factor
" d4 G2 u. k& z, eTable 44; Table 45; Table-D2
& G+ M& w2 ^' o- \: E5 O: tWiring Methods and Conductors4 s4 }! D1 H N. `
28-102 Portable Motors7 A4 n1 Y4 j" V. o/ w3 r( E! A( }7 u
28-104 Motor Supply Conductor Insulation Temperature Rating and Ampacity/ N* T% v6 J# }) J0 N
28-106 Conductors, Individual Motors' B5 m3 e: b9 o" e2 g4 R
28-108 Conductors, Two or More Motors
f3 o. l+ D+ O7 y5 q28-110 Feeder Conductors8 F3 p; b+ G5 u I* L
28-112 Secondary Conductors" W) B/ m3 r7 c- M7 U# m p
Overcurrent Protection4 I0 \& c4 ?9 h( j
28-200 Branch Circuit Overcurrent Protection
- l1 ~8 M0 l* [' ^28-204 Feeder Overcurrent Protection7 d9 J$ J; }$ W, R# I
28-206 Grouping of Motors on a Single Branch Circuit
0 Y+ @0 T" F1 w) r, }' T8 k) S28-210 Instantaneous-Trip Circuit Breakers (Appendix B), D) Z1 h; R Y3 h
Overload and Overheating Protection
) x1 Z d1 L; m9 p28-302 Types of Overload Protection
1 j4 t5 M& Y! L/ h: B28-304 Number and Location of Overload Devices (Appendix B) Table 253 I2 }; M- f! e/ B( f( d
28-306 Rating or Trip Selection of Overload Devices (Appendix B)$ x' u2 \2 W/ ^
28-308 Overload Protection Not Required3 _& s* F0 w5 p$ |! m
Undervoltage Protection / {7 L+ s: f3 ?; X+ Z
28-400 Undervoltage Protection Required for Motors (Appendix B)3 L% k# Z- B, Q% s2 f
Control) ~" ?8 Q& M9 l( g
28-500 Control Required
) i6 U+ d' @% t4 B# K6 L! d28-502 Control Location r3 D2 p" n7 _( y
28-504 Starters Having Different Starting and Running Position
- Q! u$ D% B' \! X28-506 Grounded Control Circuit
8 t9 N A& @$ I( hDisconnecting Means+ {( A! A- E! q; }$ ?+ D
28-600 Disconnecting Means Required6 n- y5 H4 B r d- }! Z
28-602 Types and Ratings of disconnecting Means (Appendix B)- a1 n+ ~& {: S% C1 o. H
28-604 Location of Disconnecting Means
& U5 P p$ R6 O3 F Hermetic Refrigerant Motor-Compressors
- L% O3 Q. h/ V* j28-706 Conductor Ampacity+ _6 j3 ^& q5 G- |
28-708 Overcurrent Protection
( R/ m" M9 @) B$ s8 r9 u28-714 Disconnecting Means
! @5 ~% V' Q: Z4 O+ } uProtection and Control of Generators
8 Q/ i6 ]' v0 f/ m M" f8 z% C28-900 Disconnecting Means Required for Generators
# u) t. O+ V# P# V" s* ^28-902 Protection of Constant-Voltage Generators
8 o+ `$ q, f2 T; O9 q `% O28-904 Generator Not Driven by Electricity
- j m$ M! s& l: F* Z% ]: z6 g28-906 Balancer sets
/ F5 Y) g' Z& o; S# P28-908 Three-Wire Direct-Current Generators
% ~- o6 t6 r+ |3 l3 A/ J% D
' X" J! e/ z2 X" @, LSection 30 Installation of Lighting Equipment
) s" A& Y% ] I6 w, L30-002 Special Terminology (Appendix B): w+ J2 P& y$ h% E" g. R% I
General
5 h& h1 }' J6 q1 V9 ^+ m4 U30-102 Voltage
^1 W; T/ ^/ G* J( C30-104 Protection (Appendix B)$ T- ^ B( T5 h
30-106 Overcurrent Protection of High-Intensity Discharge Lighting Equipment
: `' S9 e% |: r5 s+ t; O30-108 Polarization of Luminaires3 _8 K. v* F/ M! W- q4 R
30-110 Bonding of Lighting Equipment, ^" b8 e9 i L# |- S7 N. @9 H p
Location of Lighting Equipment( r) a! o- ~( `4 B* C" ^
30-200 Near or Over Combustible Material
1 L! Q1 q- s* F V4 y30-202 In Show Windows
5 A* r- p! e7 ]) o, W30-204 In Clothes Closets7 E6 Z7 M3 B$ ?: H% @
Installation of Lighting Equipment; W$ D' i: I7 O1 C9 y
30-302 Support
- E2 F" k: [9 ^; I30-304 Outlet Boxes to be Covered: F% \0 r5 l+ ?2 m
30-308 Circuit Connections
( p, B, ]$ ?! j& g; ~$ S7 K; f30-310 Luminaire as a Raceway
- I( W% W9 a# p) Y9 C) O30-314 Minimum Height of Low Luminaires
0 `' z' `5 t/ k% r30-316 Luminaires Exposed to Flying Objects& ]/ J8 L9 d: V6 m0 {/ ]6 X c3 ?
30-320 Luminaires in Damp or Wet Locations
( g" x d) S8 h$ j2 {9 Y, bN 30-318$ O* Z! a. |/ U& H. `( g
Wiring of Lighting Equipment/ l2 u7 g) a5 h" V- M
30-400 Wiring of Luminaires
0 U t, g; R* W- G+ v30-402 Colour Coding0 Y$ ~; Z/ v2 x; [
30-404 Conductor Insulation! z/ }+ Y, G% E \# k9 ~4 H9 z
30-406 Conductors on Movable Parts
' }+ t: {& N W30-408 Wiring of Ceiling Outlet Boxes
7 {: M( n" _+ g30-410 Wiring of Show Window Luminaires% u9 i* G$ ?( q# C& J8 h0 K! E5 |
30-412 Tap Connection Conductors% k7 z6 T9 o. W9 ^
Luminaires in buildings of Residential Occupancy, l4 G7 H3 m. t4 x# @
30-500 Lighting Equipment at Entrances (Appendix G)! s" s! l, _6 h' N0 m3 H1 \! @
30-502 Luminaires in Dwelling Units (Appendix G)1 a2 s( D$ u) v3 R2 I9 F# r
30-504 Stairways (Appendix G)0 Y! Z: r, u" `
30-506 Basements (Appendix G)
! i7 N. I" k" i5 Y" C% U' U% U30-508 Storage Rooms (Appendix G)3 @9 b# K* U4 l0 b9 |! Y
30-510 Garages and Carports (Appendix G)3 }$ K0 Y s `- F) ]) l& ~
Lampholders
' v" d5 D0 O; v; V. k30-600 Lampholder rating with Incandescent Lamps
0 s- d; S2 I7 C* ~# n" o: n8 _N CANCEL0 A" R/ F# F! k. Z+ q5 m! G
30-602 Connections to Lampholders
& s, p" U9 U" u2 i6 `N 30-600
' R: b3 I1 o9 U! K( L30-604 Switched Lampholders Used on Unidentified Circuits L/ i# C' z1 |, e
N 30-602
6 X7 p* }- G1 F30-606 Switched Lampholders with Pull-Type Mechanisms
( O/ a% O) f# F4 i/ sN 30-604
3 s3 Q' a) w; J% u3 h9 U. Q# m, b* u30-610 Pendant Lampholders @9 G& l/ E5 l; Y$ i
N 30-608
8 n7 [5 K9 t$ y+ o: tElectric-Discharge Lighting Systems Operating at 1000V or Less+ o: j* ?& e; m# }3 ~. t
30-710 Control (Appendix B)
6 O4 w0 y6 |8 k" x" X3 y# H30-712 Branch Circuit Capacity
, j; W! ]# x6 n! c9 n& F) IElectric-Discharge Lighting Systems Operating at More Than 1000V5 l# q6 U+ q h* U! v5 o
30-802 Voltages, Dwelling Units0 Q; F b/ l2 L2 r
30-804 control (Appendix B); Y7 k! Z& s L: D
Recessed Luminaires (Appendix G)
! G: L, D, Q' u3 a' o30-902 Spacings for Non-IC Type Luminaires+ P3 `% R. J) l6 r+ o; K7 Z$ D+ H( `
30-910 Wiring of Recessed Luminaires (Appendix B) m0 ^! V: R3 O
Exposed Wiring for Permanent Outdoor Lighting
" a! P/ X: M: I3 N" o6 S* n' x30-1120 Branch Circuit Loading and Protection9 f b$ Y+ s; a1 H# X- l
Extra-Low-Voltage Lighting Systems+ |. r2 f" A+ p1 w d( l' t. V/ r) w
30-1202 Sources of Supply
# R0 |0 t4 z( A- L1 o
1 t: l v; X/ w, V/ rSection 32 Fire Alarm Systems and Fire Pumps (Appendix G)* t' i8 R+ e! [7 P5 `# r
Fire Alarm Systems
! z8 u0 l* H3 N) v' ~( H3 x32-100 Conductors; g% O; M: o0 l' f0 g4 u& s
32-102 Wiring Method0 k7 r2 m% t: p/ r- e
32-104 Equipment Bonding9 H$ k& G* K$ B7 C7 N/ k) U) g/ b
32-106 Electrical Supervision
, A7 C3 _$ G" Q1 G! Z32-108 Current Supply
7 V/ U4 C# H0 D32-110 Installation of Smoke Alarm Devices in Dwelling Units (Appendices B and G)
w1 O2 x$ x% o% t# {Fire Pumps
$ c8 p) d; u; F" _: q) y32-208 Overcurrent Protection (Appendix B)4 H4 t7 `8 n' G* Q% ^$ g
N 32-2067 d) ?2 z; U( z/ x% U, V
32-210 Overload and Overheating Protection (Appendix B)
. N0 ]1 k+ j) v# {; `32-212 Ground Fault Circuit Interrupter (Appendix B). I) B0 b; v$ ?& i9 W) l2 ^
0 _* M& }; z$ e8 o) N
Section 36 High-Voltage Installations6 r: B; P7 }. b
General
( A0 z! Y$ O+ L2 D Y6 p! |* p. }36-000 Scope (Appendix B); b/ M% U" K# i* T' n* @* r8 x
36-006 Warning Notices
; [% t, c* b( i% r+ J+ B# D5 \% m1 nWiring Methods
* U2 ^( x7 f; @1 {36-102 Radii of Bends
- y6 L" ^+ g _* f! c36-104 Shielding of thermoset insulated conductors: _! _' G: y- {7 t
36-108 Spacing of Exposed Conductors (1) table 30, table 31# _7 ^& r$ w& l' h b4 `% k
36-110 Guarding of Live Parts and Exposed Conductors - Table 32, table 33, table 34
' a; `; q; W0 Q0 o9 e/ p6 A7 YControl and Protective Equipment, K9 ~3 {9 `8 g
36-214 Disconnecting Means' O3 t6 _; K% I
Grounding and Bonding1 x, ]2 a# J, c7 k7 S
36-300 Material and minimum size of grounding conductor and ground grid conductor and connections
( l+ K4 W0 S5 _36-302 Station Ground Electrode (Appendix B)
& j0 j8 b( ^; k. H' ?8 ~' h36-304 Station Ground Resistance (Appendix B)
. o- R" v5 u& c3 K% R' w36-308 Connections to the Station Ground Electrode (Appendix B)
5 d$ ]- a- c- U36-310 Gang-Operated Switch Handle Grounds& p g* f7 }4 b( [2 l
36-312 Grounding of Metallic Fence Enclosures of Outdoor Stations
* s5 M2 ?9 m$ B3 S
- t8 M2 i9 [: E) \. hSection 38 Elevators, Dumbwaiters, Material Lifts, Escalators, Moving Walks, Lifts for Persons with Physical Disabilities, and Similar Equipment9 S* A8 ~2 P4 U: u# F1 e( Y( A
38-002 Special Terminology (Appendix B)6 X; [& m& M, F- h4 C7 w
38-003 Voltage Limitations (Appendix B)
9 u8 @3 u' y! D) J5 _+ P38-004 Live Parts Enclosed
; l# ?9 u4 X9 l( R1 T- E6 O38-005 Working Clearances- L o5 X$ |. x6 J6 _2 v* t& Z
38-011 Insulation and Types of Conductors
! [) Z* N4 N5 b$ S. y7 g% r38-012 Minimum Size of Conductors. Z- R: b$ z6 w7 k
7 u4 |7 U7 }1 ^
Section 40 Electric Cranes and Hoists
1 j) k9 b# Z D3 O" o) i40-008 Disconnecting Means
; \" t, ^0 y$ j! n- _40-010 Main Contact Conductors
I1 r- u' a2 K3 b5 n" W
6 g7 W5 h$ p; J2 P( |Section 42 Electric Welders
9 N4 H ~: s. HTransformer Arc Welders
# }$ D( |7 q; K, Z! }42-006 Supply Conductors& b- c3 ]6 G2 L' U4 J. C! v
, B ]! ~! ]- j$ w" ^, z k9 O
Section 44: Theatre Installations1 j8 l3 o. S' P/ l
General$ I) o: U a- f4 B. `% `- ^
44-104 Number of Conductors in Raceways, Y# Q) K y; }7 s4 @1 H2 ~
44-106 Aisle Lights in Moving Picture Theatres0 d1 U' g" U; l. m
Fixed Stage Switchboards' f; _7 E9 U* J+ ^" Y8 d7 B, Z+ B8 O
44-210 Overcurrent Protection
1 _4 L4 P) P: W/ P8 G$ g8 tFixed Stage Equipment
: S$ N# u& [0 ?& I- [44-324 Receptacles in Gallery Pockets
/ D2 i4 l* M$ I' p4 z1 L& f: O44-326 Receptacles and Plugs$ j1 b8 p# W4 u% v& p- ?4 a
3 y. S7 j, B) y$ O4 _Section 46 Emergency Systems, Unit Equipment, and Exit Signs
9 L! u' c3 N3 L# I* o. yGeneral4 Y# _6 K4 v9 m9 U0 ~8 N. |
46-102 Instructions
9 h- ?. e0 }- J3 y ? f1 u1 q4 K2 O46-108 Method of Wiring (Appendices B and G), b9 b% g" ]8 _8 F+ `4 H
Emergency Systems( r2 G8 P7 }1 Q' H5 `
46-202 Supply (Appendix G)! }& v5 ?0 b% o2 [: ^
46-204 Control
' l) y+ s# R$ {9 r; k. z46-206 Overcurrent Protection; ^* N F6 j/ c; Y8 h7 B4 ]
46-210 Remote Lamps; w1 u' g/ J- u. U; J
Unit Equipment
( _, l3 R; Z% G$ D, J8 F46-304 Supply Connections
5 ?' h. O5 L' m I8 v5 l4 p- O; n$ M46-306 Remote Lamps (Appendix B)* e8 Y( a# C8 {; a
Exit Signs* S6 R7 N+ d! b- X% l4 w
46-400 Exit Signs (Appendix B and G); R, e2 W: u, I+ u
8 Q4 g# J; W. r* e2 a; `$ t9 nSection 54 Community Antenna Distribution and Radio and Television Installations9 J$ Q6 b! z8 q# }6 F6 W
54-000 Scope% q& J7 o1 }: c
54-004 Community Antenna Distribution (Appendix B)
+ E3 }5 |( E1 E+ y- n' X: }' WCommunity Antenna distribution, W6 J$ x; N6 u
54-100 Conductors" Z" G2 h F( h8 g' G
54-102 Voltage and Current Limitations (Appendix B)
+ _, c' ~0 @/ Y W/ rProtection
" l* \4 o9 R. H54-200 Grounding of Outer Conductive Shield of a Coaxial Cable (Appendix B)" v, _& S, U3 B5 h& g% b" J) s
Grounding: R; K; x- m9 i: {
54-300 Grounding Conductor1 b, K' g! e& r- ^
Conductors Within Buildings: W& O% q+ k5 ?+ O' b, l
54-400 Separation from Other Conductors5 w8 I' h' E/ w% |# P/ ?. u
Equipment
6 ^$ m! X, }2 ?% c6 m- P54-500 Community Antenna Distribution Amplifiers and Other Power Sources: J7 \5 N# P2 H7 _5 o. z
54-502 Exposed Equipment and Terminations' w) ^8 n' @' n4 ~& U4 v0 |6 i o
# Y' S. c1 z& a s+ ]Section 56 Optical Fiber Cables0 X4 Z2 X2 z4 i4 \ a `
General
4 G: |) m3 N; y, g9 D56-100 Special Terminology" L2 f: \8 W1 k+ A3 ]" l+ p0 _
56-102 Types1 ~( D6 M6 Z6 i% J& `: J- }" ~- E
Installation Methods
& Y A7 E; M# N* ]+ Q56-200 Nonconductive Optical Fiber Cables (Appendix B)" n; j' s( [+ p q
56-202 Conductive Optical Fiber Cables (Appendix B)
9 ?" i$ {( C6 x$ |56-204 Hybrid Cables* X+ t% k- e' y0 s. s3 V0 t
56-208 Optical Fiber Cables in a Vertical Shaft (Appendix B)- S% y( m) u% |+ E' |! [" G
$ \, I# I6 e& C& F2 U3 A# |
Section 60 Electrical Communication Systems
. ^) W0 h( |; P% cGeneral
9 d5 x9 \, Q. {- L60-100 Special Terminology7 D7 p! w, J7 u; f, ~) [8 G
Protection
- c3 a l6 V1 b2 A60-202 Primary Protector Requirements( l0 o/ H& c6 k- p2 W4 P2 }
Inside Conductors
U: C2 }7 o" e0 ^0 U& d60-308 Separation from Other Conductors
& B- c2 c: O2 W- ]* bEquipment
- {1 \" e+ U/ L( O3 K! p60-404 Exposed Equipment and Terminations
! u- O3 R! T( s% ]: ~* Q8 P# _Underground Circuits
. [; a! ~' J( X, i! e* y7 s60-600 Direct Buried Systems
7 f P4 _: o9 M+ T# b8 ]- r5 w. w
0 c6 i- C: g( vSection 62 Fixed Electric Space and Surface Heating Systems
9 Q w1 O/ g' C+ RGeneral
3 j- L( p/ v/ w* h1 A62-102 Special Terminology* d C. _ Q- F4 s9 ~% s. t
62-108 Branch Circuits
: C; W: \2 Q5 N" a9 o0 \' X9 S0 s62-110 Installation of Fixtures
5 _, T* X1 c# X62-114 Overcurrent Protection and Grouping (Appendix B) (5)# f9 H8 X- W) {3 H
62-116 Demand Factors for Service Conductors and Feeders (2)) V$ `& y( t) X2 l4 T* O
62-118 Temperature Control Devices8 C5 b. S2 O1 h4 R0 i3 V6 r2 B
62-122 Installation of Series Heating Cable Sets (4)(7)
2 c$ f: g( r. w8 p8 k vElectric Space Heating Systems* I3 v) \1 O# E9 M) ]8 U, @% V
62-202 Temperature Control2 W$ e4 o3 m. o. y
62-206 Proximity of Other Wiring (Appendix B)4 v$ D+ Z5 I2 N$ Z' r' {0 R% q% n% N
62-214 Installation of Heating Panels and Heating Panel Sets
4 Z, C9 q/ t2 M: y# e62-218 Series Heating Cable Sets in Cement or Plaster Ceilings" t$ S7 G+ E; D. O- m# `
62-226 Installation of Under-Floor Covering Heating Panel Sets. d7 J. m* n' D5 m& F
Electric Surface Heating Systems
/ b' V' j. ]( M. `5 W. d62-306 Heating Cables and Heating Panels Installed Below the Heated Surface( E4 s9 z) P; M* y$ G$ O2 J. p- |
- z8 ]; S [/ D, b5 R8 |Section 68 Pools, Tubs, and Spas
! O0 @3 R0 R. \& h* N4 g2 \General7 s8 }( O8 b' n! M
68-050 Special Terminology
: M* j2 b6 Q& P; h& h/ a68-056 Underground Wiring - Table 61
0 T; r) j3 \( e. m5 ]$ R( Y+ V68-058 Bonding to Ground (Appendix B)- f( |, I8 L* p2 ]
68-060 Junction and Deck Boxes (Appendix B)
* j3 x9 y! T$ h; `& W68-064 Receptacles
. F& W7 K- E# W, ^1 z% D68-066 Luminaires and Lighting Equipment
* R b3 _- l7 `" U68-068 Ground Fault Circuit Interrupters (Appendix B)+ U2 w2 x: l/ a& n, ~
) S' F0 ]& ~, A! q7 _6 l
Section 70 — Electrical requirements for factory-built relocatable structures and : {* C2 |6 T, R- v3 a
non-relocatable structures6 g1 G/ _: v3 }
70-130 Tests (see Appendix B)
$ _8 a3 E+ I, m7 } j9 y6 Y5 Z0 `( n' ~- Y& E1 q
Section 76 Temporary Wiring (Appendix G)3 \' f- e) n! e& }* [* L
76-004 Grounding
6 {+ V/ o) L/ j9 U5 z76-008 Service Entrance Equipment+ ?- R$ l) H/ j& m3 N+ S
N 76-006
8 n0 {' \+ V+ ^( t. `76-014 Branch Circuits' [8 M) `% ^& g2 U
N 76-012: {: m, p* K$ I" R8 O p- ]9 K
0 W) P* p' S# eSection 78 Marinas, Yacht Clubs, Marine Wharves, Structures, and Fishing Harbours
- V6 {9 L5 E2 n' n8 d* f2 ^Marinas and Yacht Clubs# N H" |! l$ {
78-052 Receptacles
|. M# j( r5 p; B78-056 Feeders and Services
) H4 k, m. I) y R8 X6 ]Marine Wharves, Structures, and Fishing Harbours5 i3 T$ E" T/ m7 y! Y( `& o
78-106 Grounding and Bonding
! Q' B# q. c- |5 e' @$ Y' u# m, XTables
( Q8 t; E+ {! x/ c/ `! d% K1,2,3,4,5A,5B,5C,5D,6,8,9,10,11,12,12A,12B,12C,12D,13,14,15,16,17,18,19,22,23,24,25,29,31,32,33,34,35,41,43,44,45,50,53,56,57,60,63,65) p' Y4 K" d9 T+ O- b
* H' ^( x* [3 ?# L
Diagrams: 1, 2, 7
# ]/ y* t4 P8 X- x3 t4 Y; W8 o. W @+ v
Appendix B5 y }2 V) R5 B4 T+ a4 u! a* x
P352: Ground fault circuit interrupter- 6mA
+ T# M5 \1 g; o2 X0 P3 MP354: 2-126 FT1, FT4
: R _! A3 ]5 O7 nP366: 6-112(4) An assembly considered to be installed in an acceptable manner is one where: (c), (d), (g)
* F1 Y( p- Y/ c# l- [- BP367: 8-200, 8-202, 8-208, 10-408(3), 10-814(1)% E' x* j, W; I" k! M
P370: 12-1012, 1118, 1214 Example:
5 n3 t, x4 }( ]& bP371: 12-11088 x5 f, f/ `/ h+ |2 l% }: y9 a: g
P381: 18-108(1)(b), 18-158(1)(b)7 s0 |. L X5 m7 s) X0 j# S Z
P386: 24-206
\% c p0 b) w8 ~P389: 26-256: }* H+ {- n3 p) [' \
P391-P393: Section 28, Example to determine Motor Conductors and Protection
: z+ `+ L0 D# ^+ L) {1 _2 _5 x) G& w7 B9 f* j: w" ^/ }0 O
Appendix D
* f" u( i& _# Z- D* j4 ]4 i3 H! cTable D1, D2, D3, D4, D5, D6, D7, D16 |
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