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Canadian Electrical Code Review Guide
6 F! P" p+ v+ j6 DFor the Exam of Electrician For Red Seal License
0 x! Q5 T/ p& L0 z" Q1 s0 \) u3 Z! _' m4 J( \
Lesson One; J/ i: k, n: _8 d4 i( J" ?
Section 0 DEFINITIONS" ?" y/ N- h0 S4 }& O5 W: A
This section is a required reading section. You should become familiar with the terminology and it’s meaning. For example:
4 A* h y# X1 q, RAccessible as applied to wiring methods
$ ^8 }# Y! D; XAlive or live
1 M, d% o* l7 p( iAluminum-sheathed cable
3 { Y3 ?) \1 ]& GAmpacity( a4 z8 S9 P: q
Authorized person
) P5 B6 B( V C) j- B% j) iAuxiliary gutter8 U5 C8 T3 L. f" p/ V/ k0 w/ N- F
AWG. `: T& l1 ~$ X: X4 p
Bonding
/ o# c- F. S1 }6 |0 j* i# d- QCable tray
- E, @3 J! n" r$ _& xCellular floor. Y X; M! H+ B& J, c
Branch circuit
7 k. K. u+ N w6 V, zBus
8 g2 u2 Y; B! G5 l$ jBusway
" z1 s$ x. {* i& a- c* uCommunication circuit5 }8 w) X3 e0 h
Extra-low-voltage power circuit. l& a# O* q* t7 U( N9 X9 L
Low-energy power circuit% X. U0 v9 g9 R5 R& S+ \
Multi-wire branch circuit
0 ~6 [2 W" b# f7 YRemote control circuit
. G5 j6 x2 M4 f5 Z5 B1 D) f A5 _& lSignal circuit5 J) Q( {$ ~5 f6 @& b* p4 X0 |6 \
Circuit breaker2 [6 `# y1 i n) ~
Instantaneous-trip circuit breaker0 ]6 E' z' T) K2 m
Conductor
3 q- H$ g: [# K5 Z0 n) HConduit
8 i, o1 \6 }" R M Flexible metal conduit) z" Y5 C' L7 {# r" @
Liquid-tight flexible conduit+ G# P' z) Q& K. l/ c, g
Rigid conduit; q0 K) X. D3 ^! b6 V2 @" u n
Rigid metal conduit
; D4 E9 T4 c6 I& k; R8 r Rigid nonmetallic conduit
( l' J7 H( u" x& G9 a) u! _ Rigid PVC conduit
- p- N* ~+ N/ D# o- P$ M) z6 PConnector7 o# q$ e' F0 _: ]8 D0 z5 W
Box connector/ |' ^& _0 {0 L% ~! R
Wire connector
7 \& a t# s& c* e% u6 B9 d3 T/ oController; a& R. c! `- p
Disconnecting means
6 N, G( `% @1 k/ y4 P9 t: a- S$ fDust-tight
) T* T' f) x, L0 TDwelling unit" o; @' u: q: u, M
Electrical contractor6 S$ u1 p! F7 a
Electrical metallic tubing/ U% J- a! P' {0 G; H
Electrical nonmetallic tubing
& k6 x% K1 o2 ?# ]; ]) HEmergency lighting& u5 t8 ?2 {/ D2 |0 r
Explosion-proof ?4 [) U& O* Z" c h; C% Q9 \; h
Extra-low-voltage power circuit
% ^) o5 A8 z m+ X5 B6 yFeeder
T0 _ t) z7 j5 q6 i$ H# S' BFlexible metal conduit
" x$ F1 R) U( U4 EGround& y6 M* C% f1 Q, |
Ground fault circuit interrupter* A" d/ C: e4 N7 w4 q
Grounded
/ i/ O; {7 e" Q7 K0 CGrounding
- I# _& Y3 J2 }2 R! }5 RGrounding conductor1 {. D9 ^' x% j; F. [' ]
Grounding electrode
/ @( _' F3 W* vGuarded
) R( O G; g5 v7 s4 A# g T, hHoistway8 p2 Z. a* u3 Y. ]' z/ _" m
Identified
5 J; A9 v* H' MLampholder$ C4 Q5 [" {0 N' n' b
Low-voltage protection
& j& q9 N1 d$ ]3 G. wLow-voltage release" }) I* G0 m; a5 o: q
Neutral
& _$ k3 c% Y! _2 WNoncombustible construction
& \/ I9 P b) q! _3 Z" xOutlet/ {$ T1 V; H6 x, P/ ~5 |
Outline lighting' B1 K: v9 x/ M2 P& r* x% @
Over current device
" q: \- ~4 s5 b, UOverload device
: K1 k6 i4 w* `4 G* H( |# o, tPanel board
( X/ g7 X9 k" @ U5 W6 G7 a2 zPanelboard, enclosed
: \' G9 o3 }: t4 U, d6 APermanently connected equipment& @$ J3 ?/ m: q, {
Permit
+ q# f& I: _" t' R7 j6 l4 g! ^Plenum7 C; Q; D! x8 f8 V( ?3 X/ y
Portable as applied to electrical equipment0 {* W9 S% I/ @8 ?. ?1 b9 g. k/ A
Portable ground fault circuit interrupter
6 R* h4 P8 v$ ^, @* yPower supply cord# a+ q' Z- x% P5 i2 n4 ^% [
Raceway& \* \+ ~0 v- R$ t) k0 v: b" r
Receptacle
. H! N% b$ k$ S7 }3 V" ? Duplex receptacle
. ^$ N& p8 _- G# R2 H6 T8 X Single receptacle$ C: J3 M2 v6 C0 O9 Z4 j0 D
Split receptacle. k$ ]1 \' Y+ X3 t E" R' U1 _6 B, D( q
Service, consumer‘s
; j9 H& K& \$ r: {0 \Service, supply
* `' T* u0 S% ?) ]2 b0 uService box4 i/ `5 C/ G2 ]0 |+ X, x
Service room
2 c2 t$ n* d. ySingle-dwelling2 X) c0 } {* h5 s8 [- l3 G
Slow-burning as applied to conductor insulation3 z& U! Z) C7 s/ @* U' Y6 L
Splitter
: a0 U# A5 S3 D' C8 l; x9 F/ SStarter) Z8 D0 `/ T( @& z2 \2 x% J
Switch, V, d( P; q6 }( h0 I+ f" w9 D
General-use switch, ^& S# J8 a) k# }" T
Indicating switch, B, a" q+ ]0 Q8 ]
Isolating switch
; m7 n/ [' X& [! h1 j4 k Motor-circuit switch+ h. p2 z/ j9 M* k$ F2 d
System
6 D/ T; X% u5 y7 H' e Communication system
+ p" R/ n& L, a8 N; {4 l/ g$ t; ` Community antenna distribution system(CATV)
- h1 S1 p: M0 A4 c4 S Grounding system
$ i, l |( p( Y8 sUnderfloor raceway
- [/ |6 \$ G3 o1 vVoltage:
! q. U9 }# B4 u4 z2 Y# ]7 r Extra-low voltage V$ M k/ a9 x, V
High voltage
3 X6 ~! l, W! v) w2 I Low voltage6 O% Z, J/ B( P2 s0 c- Z
Voltage of a circuit
6 C. ]8 w% J: f, V6 pVoltage-to-ground' N, \. I3 Z! Z6 i+ ^
Wireway- |9 f) F) Y7 W! n* E
U5 E4 h( e6 _3 hSection 2 GENERAL RULES
! a/ @* c8 @6 ?7 }) Y! Y% CAdministrative
" k* @6 K7 a* x, e |* g4 G2-018 Reconnection
* v: {# L; t6 |+ Y) P9 W# w5 N2-030 Deviation or Postponement" f4 }/ w: [8 V* U
Technical General
3 a- k9 ^' W+ ~: f4 P7 ?. G2-106 Circuit Voltage-to-Ground – Dwelling units
& i# _: S# b* ^% V! m6 W. m2-114 Soldering Fluxes
; s/ U0 T3 @8 j1 G" \' i' k' s2-116 AWG Sizes of conductors0 m' l# X* j0 ]% i
2-124 Fire spread (see Appendices B and G)2 g# c% j9 y0 I: o2 ~
2-126 Flame Spread Requirements for Electrical Wiring and Cables (see Appendices B and G)$ S* ~2 v4 L9 l" J; f
Protection of Persons and Property
) Q- I, d" L' B& }2 w7 w2-202 Guarding of Bare Live Parts( V& A: l# I0 P0 `/ q" c) l% l' T6 t* @9 s
Maintenance and Operation# Q0 r7 @' g4 J; P. B0 P
2-304 Disconnection
+ v9 r2 j# ~6 D$ J# i, d4 ^) {2-306 Maintenance of Live Equipment* g" S6 D9 u& a5 [- j0 D# R4 @
N 2-306 Shock and flash protection (see Appendix B)/ |6 {. u! N4 d- @
2-308 Working Space About Electrical Equipment: Table-569 ^: w' u/ h8 `
2-310 Entrance to, and Exit from, Working Space
- e( J) I2 x, O$ |2-320 Drainage# J' p ^9 [# {; l, ^+ V
2-322 Electrical Equipment near combustible Gas Meters and other Devices1 ^; [! `" C5 ?6 |' I: ?/ l
Enclosures5 {& ?& H2 w# h3 V* O+ H
2-400 Enclosures, Type Designations and Use: Table 65, (1)-(c) 5 z y; I1 f% M4 B' j; U4 m
2-404 Marking of Motors: DP, WP, TE" I$ s) q" V7 r& L* e* t0 b
1 d$ T0 j, s3 k5 `+ v9 J0 o6 lSection 4 Conductors
$ H/ R) z/ h' k3 s/ P: x4-000 Scope: U# _' \( U2 P( T5 n; }
4-002 Size of Conductors: 14#, 12#
7 a+ L( `8 _5 J1 v5 L) o- w7 @7 f3 B4-004 Ampacity of Wires and Cables: Table 1, 2, 3, 4, 5A, 5B, 5C, 36
" d2 \: h+ y3 d, V, y" \- T4-006 Insulated Conductors: Table 19/ g; I* i) R0 b; T9 U
4-010 Uses of Flexible Cord: Table 11# A" u, S* K o& X7 T1 a, R
4-012 Sizes of Flexible Cord
- S; i" x+ @2 L( }4-014 Ampacity of Flexible Cords: Table 12( Y: c! U3 y/ Q) F8 ?' S9 g1 |, S
4-018 Equipment Wire( H3 }* {! B) a
4-020 Insulation of Neutral Conductors
1 _! a* t9 E$ N! e" e6 h4-022 Size of Neutral conductor
6 n1 m0 H8 {2 _+ F4-024 Common Neutral Conductor
# J, i" |4 e! x; {4 {/ s4-028 Identification of Insulated Neutral Conductors Up to and Including No. 2 AWG Copper or Aluminum& ?* x1 V) q! r, _; E# ^( _" `) L
4-030 Identification of Insulated Neutral Conductors Larger Than No. 2 AWG Copper or Aluminum
3 v; ~5 r1 S& a1 L, Q4-032 Identification of Type MI Neutral Conductors, w+ I1 y/ [" \' E7 Y S
4-034 Use of Identified Conductors |6 F( [* N2 @9 a" G+ j% r* H
4-036 Colour of Conductors: Phase A, B, C, …! K6 D0 [) E8 _0 `0 ~
! _) j7 i4 Y$ m/ Q
Section 6 Services and Service Equipment: C7 |! ~( Z$ O1 l! x
General
% T: }5 _& B% x9 h- e3 k B" I6-102 Number of Supply Services Permitted
3 A: J0 Y9 M2 o0 W. @6-104 Number of Consumer’s Services Permitted in or on a Building
3 p9 h8 g3 M. o1 l* ]+ w6-108 Supply Service from an Electric Railway System
3 s; h5 j4 [% v8 x4 w+ ^6-110 Three-wire Consumer’s Services
. l) X9 y4 g& N4 b7 d* y& h6-112 Support for the Attachment of Overhead Supply or Consumer’s Service Conductors
* X! k# D& {2 [6-114 Methods of terminating conductors at consumer’s service
0 [9 y, g4 w0 ]" X6-116 Consumer’s Service Head Location+ a) u# A. _! C; A* C6 _
Control and Protective Equipment
6 `# z9 d8 D6 {6 o$ m6-200 Service Equipment& _# Q7 ^" b* j/ R2 c* Y
6-206 Consumer’s Service Equipment Location (1)(d)(ii), (e)
" Q% N+ l. }- N& A+ \# q6-208 Consumer’s Service Conductors Location
7 j9 `# c& Q1 u& }$ ~% _6-210 Oil switches and Oil Circuit Breakers Used as Consumer’s Service Switches1 ?3 y9 [% c6 v! p5 r# u
6-212 Wiring Space in Enclosures
. c7 U/ B+ M# W6 V/ n" M6-214 Marking of Service Boxes$ U) W4 s& y+ N6 z% b
Wiring Methods# p! }5 P2 Z! ~/ |2 ^: K
6-300 Underground Consumer’s Services, }" s1 y9 U7 A1 [+ d: |/ Z
6-302 Overhead Consumer’s Service Conductors& g2 A' W( \( U \: m
6-304 Use Mineral-Insulated and Aluminum-Sheathed Cable" y" E+ ?0 D8 f
6-306 Consumer’s Service Raceways5 }# s, `. d- p& ^* \
6-308 Use of Bare Neutral in Consumer’s Service, j6 @- q& R( T, Z8 {9 m7 V
6-310 Use of Joints in Consumer’s Service Neutral Conductors
4 A; s6 E2 u2 e$ R+ n D6-312 Condensation in Consumer’s Service Raceway3 Q7 X) x3 w+ T6 A3 I
Metering Equipment
6 V: I- Q3 Z" C% ?7 j- h7 H; X6 l6-400 Metering Equipment( w+ A& O# X% K6 N" _: O; |
6-402 Method of Installing Meter Loops; r* d J( y8 V# J7 R; k
6-404 Enclosures for Instrument Transformers8 }* E9 n% P& J0 s/ Z. n
6-408 Location of Meters1 O# g G: p- l! b, T6 h& d! u! m
; J, [* E& m5 W' f: H$ `. KSection 8 Circuit Loading and Demand Factors, W+ t) N5 {. b
General8 I/ d& O2 s$ I( j8 ]" u
8-100 Current Calculations
* G- {8 R6 h4 B8-102 Voltage Drop ( see Appendix D), m7 X3 O3 d5 m/ f
8-104 Maximum Circuit Loading- T) P# F- H! U- z2 E0 H: n% t
8-108 Number of Branch Circuit Positions& O9 K, z _$ Q |1 I
8-110 Determination of Areas- s2 p+ s. {9 ]8 N# J
Services and Feeders D0 h; Y6 ]5 p# \0 S
8-200 Single Dwellings (see Appendix B): `* P6 G7 u$ o+ r3 h( Z
8-202 Apartment and Similar Buildings4 s g. _, _$ i" u5 c9 L/ E
8-204 Schools
. s" d* \, S5 L+ N3 c4 {8-206 Hospitals
' C* |4 \! i _8-208 Hotels, Motels, Dormitories, and Buildings of Similar Occupancy
" N1 V0 o; I4 Z8-210 Other Types of Occupancy (Table 14) l$ ]0 n/ @9 E( o+ T% F' p" V4 Y
8-212 Special Lighting Circuits
9 @' x1 X, ]% D* X. J# R. kBranch Circuits2 a- i7 O6 M# \" B/ n; P0 [
8-300 Branch Circuits Supplying Electric Ranges
9 k5 d/ y6 |# M! T5 d+ t8-302 Connected Loads% ^, W& i6 @- d) E0 m0 v
8 O6 n; X0 X. |* L# ]! _Section 10 Grounding and Bonding
' ]. `. Y- g; Q3 c- N1 _. YScope and Object
0 x' t7 J- g% f% B' A8 f2 t+ K10-002 Object8 B+ V) n9 N/ T3 o+ P6 t
System and Circuit Grounding
s/ s. e! U4 x( r10-102 Two-Wire Direct-Current Systems7 J) o, q; x0 w/ u& u
10-104 Three-Wire Direct-Current Systems
8 v; k' b3 n1 j/ V10-106 Alternating-Current Systems
7 F% U6 E) W( I5 M8 Q3 L10-110 Electric Crane Circuits! d( d5 `3 X" s: w
10-114 Circuits of Less Than 50 V5 Q o2 U) k9 x6 K* `: b
10-116 Instrument Transformer Circuits& u) T8 \/ S; H! ~+ K! z( V
Grounding Connections for Systems and Circuits. W0 D6 b ~+ L" `5 j6 G
10-200 Current Over Grounding and Bonding Conductors8 N' x4 K8 E8 X) U) u# F o
10-204 Grounding Connections for Alternating-Current Systems/ `8 ^; }- p' R. M$ U
10-206 Grounding Connections for Isolated Systems, d( s/ F9 {. W+ ?$ |
10-210 Conductor to be Grounded( Y7 |) s1 I8 g( t9 M
Conductor Enclosure Bonding0 g- a; A9 W5 W9 j" `/ |) j
10-302 Other Conductor Enclosures
3 \$ N- @" j, BN 10-3049 ]* [, `- C+ O6 w8 |. F- z+ r
Equipment Bonding
3 E2 f3 H& T, i. T s1 K10-400 Fixed Equipment, General1 I" B- ~! e1 _: A) M* t1 l. z# t. D
10-402 Fixed Equipment, Specific (3), (4)# p0 |1 p9 k& n+ }- K5 I
10-404 In Nonmetallic Wiring Systems
% T% d( y Y) A4 ~10-406 Non-electrical Equipment4 o/ o3 M6 d0 n# g, L# B
10-408 Portable Equipment (4)(b)
/ `5 Z1 s! u3 f10-410 Instrument Transformer Cases
|# e( V, K1 L' |- N8 R% S2 |10-412 Cases of Instruments, Meters, and Relays – Operating Voltage 750 V or Less% Q4 V1 w8 I5 {, I( Q+ ~
10-414 Cases of Instruments, Meters, and Relays – Operating Voltage Over 750 V
! k# E5 K8 H: z' {, DMethods of Grounding) u0 x- u F' M) e7 b# S! V. s4 s
10-500 Effective grounding (see Appendix B)
1 ^1 O; \! `; C2 X10-502 Common grounding conductors; f/ |" S1 i: [. Q' P1 W
10-504 Common grounding electrodes0 ?* _/ c- G4 d2 T% S4 G9 H
Bonding Methods
- o* i1 m9 b- o8 j: {+ |% |$ W' C: T10-600 Clean Surfaces
4 {1 b0 o5 i* {" x- w) E% P: k10-604 Bonding at Service Equipment
$ _4 R f K. A10-606 Means of Assuring Continuity at Service Equipment/ I+ a" \9 z3 n" }7 P
10-610 Bonding at Other Than Service Equipment
, D* y& q# r0 \% w8 S! W10-612 Loosely Jointed Metal Raceways! i. S) x: V4 N$ X- s7 n% r$ Z
10-614 Bonding Jumpers Table 41# I! m! V c% M5 l7 z2 h2 s
Grounding Electrodes
9 e9 S) g* }' _% k. Y7 U10-700 Grounding Electrodes
# P5 y2 S% Q" [( r0 i+ o10-702 Artificial Grounding Electrodes; g) s; M& n z# v
N 10-700 & 10-702
0 _/ } _( k9 ?: j6 H! \. W# T! L10-706 Spacing or Bonding Electrical and Lightning Rod Systems (Appendix G)
4 l* Q$ C4 _7 Z0 k- S, cN 10-702
$ z" f- `$ F# ?% j, W, z+ [10-708 Spacing and Bonding of Electrical, Communication, and Community Antenna Distribution System Grounding6 Y( i7 S5 b% I$ M& i
N 10-702
* L8 k# z d1 g0 v# a10-710 Use of Lightning Rods (Appendices B and G)
7 c2 W. I; o* C- zN 10-706
; v8 w+ T |7 @4 WGrounding and Bonding Conductors
/ B/ L9 ~" N6 ?) D O10-800 Continuity of Grounding and Bonding Conductors8 }8 @1 |5 M1 v3 O; ^
10-802 Material for System Grounding Conductors7 A" H3 r8 l% `& z. |0 s* e$ ]
10-804 Material for Bonding Conductors4 m) p" y+ H* g5 m; \1 `
10-806 Installation of System Grounding Conductors9 @1 x: r; m% K! t
10-808 Installation of Equipment Bonding Conductors! K, s4 A& @3 E: A! [7 _
10-810 Grounding Conductor Size for DC Circuits
4 [( h$ {* f0 `# a10-812 Grounding Conductor Size for AC Systems (see Appendix B)
9 Q8 R7 v- S6 c) a) ]10-814 Bonding Conductor Size (Appendix B)
. }: D2 ]+ p2 O, y! c10-816 Bonding Conductor Size for Circuits Extended to Portable, Pendant, or Fixed Equipment3 x4 W0 o2 w, U, \& S
10-818 Bonding Conductor for Outline Lighting
+ r5 }) z, a3 k1 O% s/ Z10-820 Bonding Conductor Size for Instrument Transformers8 b H, W$ L) @' e* q3 K0 F6 J% X
Grounding and Bonding Conductor Connections
& ?, F7 q; s) p9 u10-902 Grounding Conduct Connection to Water Pipe Electrodes
6 f4 ]- W: |$ T10-906 Bonding conductor connection to circuits and equipment
; {4 f2 P& q+ m10-908 Grounding Conductor Connection to Electrodes
) E7 Q/ }& o! O* c' K" w1 v2 Y7 _Lightning Arresters% k" o j+ c/ O# J
10-1000 Lightning Arresters on Secondary Services – 750V or Less& j. [; I! {* m' F
/ V% v2 K; O3 B* U/ U6 `4 C/ {0 ~
Section 12 – Wiring Methods" l9 d% \% }3 ], B- z _6 X
Scope
( h* P `, Q$ }. s2 c12-000 Scope (Appendix B)
! f8 o- o3 b% h' e% eGeneral Requirement j% L/ v f; V' ^5 ]$ _
12-010 Wiring in Ducts and Plenum Chambers/ V( K$ c* S+ l c
12-012 Underground Installations (Appendix B)8 ?( [" f4 t b8 ^ ~: Y, n5 G
12-016 Lightning Rod Conductors
3 p6 Z6 `, }. I* IConductors - General0 _) V0 [5 t6 J4 \. U
12-100 Types of Conductors (Appendix B) Table 19$ x3 m" _" s- L) A4 _4 v5 S5 _/ O
12-102 Thermoplastic-Insulated Conductors2 U' n2 x' O6 t6 S
12-104 Flame Tested Coverings) T3 c1 }6 T6 S$ l7 E4 E5 K! g/ A
12-106 Multi- and Single- Conductor Cables
6 h. ~' G: Z# f3 V+ ]1 m2 w12-108 Conductors in Parallel (Appendix B)
4 ]$ _& w6 o9 D' V7 t& Y+ e12-112 Conductor Joints and Splices
: p$ W) L0 H- I [9 m12-114 Ends of insulated conductors6 e4 @( O) e& G w5 h" A% q
12-116 Termination of Conductors (Appendix B)8 ?( e! ?8 V7 x: u* D% Q% W* ]2 ]3 _
12-118 Termination and Splicing of Aluminum Conductors
5 W2 V; ^0 i4 I2 F12-120 Supporting of Conductors - Table 21
- z5 ?5 \8 K4 b( {7 D) LOpen Wiring& C( \# o% b$ l0 K) o ]) M
12-204 Spacing of Conductors
/ n( I% Y" h* }12-206 Conductor Supports
; ?( \4 F, Q+ D- B! w5 S12-208 Conductors on Flat Surfaces9 V3 n. @. q! c' a# ?
12-212 Protection from Mechanical Injury
; _" b( F. K6 d& aExposed Wiring on Exteriors of buildings and between Buildings on the same Premises6 T4 J+ j, b/ w" K
12-308 Minimum Size of Overhead Conductors
9 d2 m; E W" c12-318 Use of Neutral Supported Cables
7 a! Z' u7 R3 X7 f) O1 q/ x+ }Nonmetallic Sheathed Cable
: D, A/ ?( H2 u5 ~0 i0 c4 s w12-502 Maximum Voltage
: d, S0 c# \/ j/ P; }+ B8 F12-510 Running of cable between Boxes and Fittings (Appendix G)
2 s M8 e! o/ O: @4 I( P12-514 Protection on joists and rafters
# P7 s1 O3 Q0 \! }8 H5 J12-516 Protection for Cable in Concealed Installations (Appendix G)) D2 m! i O& i W! k/ K' w
12-522 Where Outlet Boxes Are Not Required( F A7 T* z6 W' T+ b) j
Armoured Cable4 J0 j& O; v" Z0 e7 F
12-602 Use (Appendix B)
- N% O3 L c4 K12-604 Protection for Armoured Cables in Lanes
- G/ {/ x* _; c$ y2 p' y: }$ @12-606 Use of Thermoplastic Covered Armoured Cable: G E4 y+ @* N0 d" Z
12-608 Continuity of Armoured Cable* I$ |, q% j' R9 I2 `
12-610 Terminating Armoured Cable$ ]2 d. V5 u4 Y2 A9 K; r! V
12-612 Proximity to Knob-and-Tube and Nonmetallic Sheathed Cable Systems# A" }( e+ j9 a; _7 b/ ^. q
12-614 Radii of Bends in Armoured Cables
. O& q) Z" `9 Y. D; F" b2 x12-616 Concealed Armoured Cable Installation
' f$ O2 A" s: O6 \7 R12-618 Running of Cable between Boxes, Etc/ W) [; L0 ]) R$ X
Mineral-Insulated and Aluminum-Sheathed Cable
' l" b9 g$ O1 K12-702 Use
; x' l* {! l# n12-704 Use When Embedded
; Z8 o( v; O2 L6 w! v9 F12-706 Method of Supporting. S4 K: c6 s k! G
12-708 Direct Earth Burial
7 M Y2 ]2 K( P( t12-710 Mechanical Protection
" M( ^) n" B) O: ~$ m12-712 Radii of Bends
) W3 i. P) @& R- i: m' K12-714 Termination of Mineral-Insulated Cable (Appendix B)3 [; s: T; R" G. Y9 |8 C1 X
12-716 Connection to Other Forms of Wiring: {* Y4 s- A6 H' Z
Flat Conductor Cable Type FCC
: W, b4 K _) x6 n12-804 Use Permitted
( S' b6 L+ U+ F) p12-806 Use Prohibited
5 I; x& Z6 \& J$ q$ H12-818 Anchoring
- C; S3 d* _3 u/ h- N ]12-820 Crossings# i( D$ R; f6 S$ r7 D/ X- k* q
Raceways - General
, ?5 {+ L; D4 y8 b* z9 A6 W2 @12-904 Conductors in Raceways" b5 S/ m9 o6 w0 D
12-906 Protection of Conductors at Ends of Raceways7 s* x) N9 |" w8 C8 M. j
12-908 Inserting Conductors in Raceways5 ~% p6 Z( Q" g2 d) `# `3 B
12-910 Joints or Splices Within Raceways
5 d+ ]6 u; G$ {" i; Z12-912 Stranding of Conductors
# x# j4 Q5 ~6 o# X1 Q# ?12-914 Electrical Continuity of Raceways, N3 q" `0 {$ o1 G1 ^
12-922 Radii of Bends in Raceways. H2 l& I; s. ?4 ^
N 12-922 Radii of Bends in Raceways Table 7- `+ Q* M( b1 ^5 M, t! \
12-932 Protection for Raceways in Lanes
' r8 I T- t; D12-936 Raceway Completely Installed Before Conductors are Installed (Appendix B)
5 Q& u' C1 j4 N3 E% S+ G12-938 Capping of Unused Raceways
% R7 u0 ?. e6 d2 X" M, k5 r12-940 Maximum Number of Bends in Raceways
p3 b/ z: Y' u ZRigid and Flexible Metal Conduit
8 a2 ^1 i0 b4 ?6 L/ H12-1002 Use
, m6 \2 A* Y& ?& t5 T6 `3 a( l! x+ p12-1004 Minimum Size of Conduits4 M, r: D J. N. q) X- C6 I0 k
12-1006 Conduit Threads (Appendix B); K% W$ V8 U" D6 O. N, [; M" I" [
12-1008 Thread Engagement
2 r) V4 _) } B4 J12-1010 Maximum Spacing of Conduit Supports, H* X" d; D& N- S" s) |
12-1012 Expansion and Contraction of Conduits (Appendix B)
0 V' `) |/ A. V12-1014 Conductors in Conduit (Appendix B) (4) table 8, table 9, table 10; (5) table 6
2 O' Y# U/ ?( C1 ?Rigid PVC Conduit and Rigid HFT Conduit
7 i( q! v8 r' _2 C% x% P12-1100 Use3 o* m8 I) n6 {( b" t* | c
12-1102 Restrictions on Use
9 ?/ G3 W) i/ s0 V12-1104 Temperature Limitations (Appendix B)
8 p. @3 H. ]% c3 F7 A! @5 J12-1108 Field Bends (Appendix B), (2)
& s* n N* X( x9 o/ W: f12-1110 Support of Luminaires
- u8 ]3 I( ?: V) J12-1112 Fittings5 n* Y- ]$ V2 {2 m+ r" x
12-1114 Maximum Spacing of Conduit Supports1 a( m0 b6 b, A, l& K' S4 L
12-1116 Support of Equipment7 {/ C! u) m$ ?
12-1118 Expansion Joints (Appendix B example)
3 L- r$ I% a- W3 kRigid RTRC Conduit, u5 ]; a& T+ L7 c4 H! o" d
12-1210 Temperature Limitations
# |2 D+ P/ \, t2 j- i1 J+ \2 N12-1214 Expansion Joints (Appendix B)
0 i$ j9 Z; @6 g; q8 E" l3 jLiquid-Tight Flexible Conduit
. |$ f7 h9 q9 i& J4 x12-1302 Use of Liquid-Tight Flexible Conduit
2 r. ?8 e( t4 t+ {7 g4 m+ x$ B* C12-1304 Maximum Number of Conductors
* B, j0 a! P3 w$ C12-1306 Provisions for Bonding
4 o0 r3 f0 A# \0 ?) v: ]+ RElectrical Metallic Tubing
4 B. m- v9 Z; N2 N8 |0 a: i L6 N12-1402 Use
6 ?1 F: `( X$ Z6 q* |% Q+ k9 s3 @ ]12-1404 Supports
/ t( C5 _/ x) [12-1406 Minimum Tubing Size
8 i% ]- K0 A$ \) _12-1408 Maximum Number of Conductors
- a6 }. T" R3 L$ [12-1410 Connections and Couplings
, Y n) @. S- @0 W9 }) ?8 R- i12-1412 Radii of Bends in Tubing0 a$ _7 _6 D5 a1 p- X! ]6 @! _
N Table 7
/ x/ N9 y' L r) O0 uElectrical Nonmetallic Tubing
' a+ r' Z* b4 v8 ?' L E- q s12-1516 Provision for Bonding Continuity( K+ M0 |" ^/ B
N 12-1514
" j/ Y$ F. Z3 y; R- f7 aSurface Raceways
0 E/ \! O7 K/ U3 B$ H5 j12-1602 Use of Surface Raceway (Appendix B)' C, b7 P* z' g
12-1604 Temperature Limitations
9 D9 _+ c( K' B# V) O12-1606 Conductors in Surface Raceways (Appendix B)/ z6 Q. Y: L* A! `' o& q" {
12-1608 Maximum Voltage2 C' y* z3 L3 |% s( F5 v4 v a; w
12-1610 Joints and splices % j( z+ `! |' F: J/ C9 f0 ^! D* e
Underfloor Raceways
, Z% N) ?# ~3 \& l! j12-1712 Discontinued Outlets in Underfloor Raceways
, a* p1 s" T" {* Y& g/ c4 rCellular Floors
d2 H2 Z& Z6 C12-1804 Maximum Conductor Size in Cellular Floor
9 S- B4 O+ i( T# Q" S12-1820 Cellular floor discontinued outlets
8 }8 C& j6 e7 u4 i3 _! l- R. \; E1 x cAuxiliary Gutters1 ]8 ^; ^3 [8 e! E6 ~) g8 j
12-1900 Where Auxiliary Gutters Are Used to Supplement Wiring Spaces* m S8 H% t) r$ [. _
12-1902 Auxiliary Gutter Supports
+ {) m6 P# G- z$ m! O6 s6 w12-1904 Auxiliary Gutter Cross-Sectional Area/ X: r0 j( N: d7 ]* X7 d# ]
Busways and Splitters
/ a0 a, S; w) f% w; ?* p12-2004 AC Circuits in Busways and Splitters
m, ^3 a+ g& T12-2006 Busway and Splitter Supports
9 S$ h$ x) R& r6 m* ?: C12-2008 Method of Installation of Busways
+ u) A7 p# l& r( X8 e12-2012 Reduction in Size of Busways# V+ t' |5 }' [
12-2014 Length of Busways Used as Branch Circuits
: j4 r8 { E: ?- j/ y3 ]# j2 _5 N12-2018 Taps in Splitters
; c4 ]& w% L1 c; l" @/ J/ N1 H8 aWireways
9 ~! g4 J- V4 G- W12-2104 Conductors in Wireways Q6 u- @% F h& d. |: v$ Y7 f6 x
12-2106 Taps and Splices in Wireways# j* l6 m. _) l3 z2 Z; W& }0 _
Cable Trays
4 Q2 n( N9 t; l8 i6 h/ t12-2200 Method of Installation (Appendix B)! K, _( f3 l# M% d" N' }
12-2204 Joints and Splices Within Cable Trays
, N: d2 z8 c0 L" W% g: r! c* l4 u12-2208 Provisions for Bonding" I! U; S% @# d2 X
12-2210 Ampacities of Conductors in Cable Trays4 N( b+ |( ~: q" ^) K
Installations of Boxes, Cabinets, Outlets, and Terminal Fittings) @3 q/ K( i8 u' T
12-3000 Maximum Number of Outlets Per Circuit
! P, u2 e5 B6 ]$ j& J( W& C" nN 8-3043 |, \0 P0 @6 B) e2 m# L! v
12-3002 Outlet Boxes (Appendix B)
( F* x3 a9 Q- }6 e8 ~# xN 12-30007 P! w' n8 Q. h4 w3 f/ f$ j
12-3004 Outlet Box Covers9 U; L: ^4 [. I( d
N 12-3002
1 s2 v0 F3 g3 F s2 l& q12-3010 Boxes in Concrete Construction( R; R3 ?5 \" S
N 12-30082 B$ F* L; Y- C
12-3012 Outlet Box Supports
% E E c4 {. ~. v8 L, u& {N 12-30104 R u& j, f2 {5 T3 U5 W( x
12-3016 Accessibility of Junction Boxes: ^- \0 v/ f! v6 ^
N 12-3014
" U, r V7 Y# I2 I5 {+ ~12-3018 Flush Boxes, cabinets, and Fittings
0 M1 ]' K, [: HN 12-3016) M/ B( _8 u) b1 M' P. P/ [
12-3024 Entrance of conductors into Boxes, Cabinets, and Fittings (Appendix B)
4 _; a. a& O' b+ f; M& o4 vN 12-3022
& Y8 ^9 h- t) K# V12-3036 Maximum Number of conductors in a Box - Table 238 L" F$ I+ X. f+ w+ h0 c3 P4 x* W
N 12-3034( _3 k, Y1 y& \* e& i
12-3038 Pull Box or Junction box Sizes
' ]. |+ u* V' y; [$ eN 12-3036
" p6 w; A) k" k, C6 }" n9 G' W7 _% G: C6 S6 L
Section 14 Protection and Control! q! U7 x& h8 o1 r/ S. @! I7 ~
General Requirement' H6 u- f# r2 h5 U* w
14-010 Protective and Control Devices Required
, `1 Z8 v% w6 @. {14-016 Connection of Devices1 v1 o; v9 `) d0 L( u7 [
Protective Devices – General0 I; F* y; C$ s9 b. a m% n1 L% l
14-100 Overcurrent Devices Required" t8 {* x3 z S7 T
14-102 Ground Fault Protection (Appendix B). M+ z& @: N5 [; Y4 w% c
14-104 Rating of Overcurrent Devices (Appendix B) Table 13
`+ i0 R9 x, r9 ?8 d+ }: c+ R14-112 Overcurrent Devices in Parallel& B/ ` u8 g. G3 P: t
Fuses
4 K2 E2 g/ @8 Q- U h( ~3 S; v14-200 Time-Delay and Low-Melting Point Fuses
; b: r7 E& @3 y/ l$ U2 T) B14-202 Use of Plug Fuses W3 z, r7 Y1 G1 o
14-208 Rating of Fuses6 m0 b/ |# g' e2 J' D" h$ Z+ E. E% y
14-212 Use of Fuses (Appendix B)7 @: Z9 e S5 P2 y% A. @3 o: {
Circuit Breakers- l3 H9 J- ~, j* A: p6 k) J7 k' e/ u
14-300 Circuit Breakers, General
( [2 h7 ^! }0 D: _/ |8 P& }1 r8 N4 p14-306 Tripping Elements for Circuit Breakers
) G8 \& Y! L- x& j) q: a2 j+ ]14-308 Battery Control Power for Circuit Breakers
6 W( R; x7 l, H9 d P! N( s' LControl Devices - General9 ]' d) {2 D6 j) _/ a8 y
14-402 Disconnecting Means Required for Fused Circuits4 s3 w0 _7 t6 \4 X/ v
Control Devices - Switches
; F- L8 @, ?0 p14-502 Mounting of knife Switches
# j% W, [" g" Q( H$ z14-504 Maximum Rating of Switches# m1 M% S" _! c
14-508 Rating of General-Use AC/DC Switches (Appendix B)
& p0 f( t7 {4 g* u! f14-512 Manually Operated General-Use 347V AC Switches (Appendix B) u& x0 M# ?; [1 s: x1 Y* N4 v* s
Solid State Devices
) Y" Z, I! a( j6 Z6 y" }14-700 Restriction of Use5 |5 d/ `2 d' y, K
14-702 Disconnecting Means Required
, |5 ]. s, x. N. Y/ a3 A* O" ~% C M+ b3 F$ n" E/ `! T
Section 16 Class 1 and Class 2 Circuits9 m' I! r5 t1 L% \
General' G5 b A( u. _1 u V
16-004 Class 1 Extra-Low-Voltage Power Circuits6 Y+ u* M" g. y; y6 I# z1 j
16-006 Class 2 Low-Energy Power Circuits+ W8 N4 r+ i8 V- u3 K: W1 `; o
16-012 Circuits in Communication Cables% Z& R6 l$ i; r" y" V
Class 1 Circuits5 Z9 c# z" q( Y/ s, r
16-100 Limitation of Class 1 Circuits
; q7 z( k. b X1 Z16-104 Overcurrent Protection of Class 1 Circuits; f! s+ I6 [& D5 i3 V$ @
16-106 Location of Overcurrent Devices in Class 1 Circuits" N9 a e/ K# ^+ h' z1 b
16-108 Class 1 Extra-Low-Voltage Power Circuit Sources Including Transformers7 h: _5 B1 B, w2 Q3 |
16-110 Conductor Material and Sizes. p9 G4 D* y5 z6 @# f [
16-112 Insulated Conductors for Class 1 Wiring
: ]: V' u4 n, b) k0 h% b9 FClass 2 Circuits
" F* E% P- y9 p. \/ {16-200 Limitations of Class 2 Circuits (Appendix B)
+ U, T1 ]2 }; T9 r16-204 Marking+ i. {" R4 V7 e7 _' |
16-206 Overcurrent Protection for Class 2 Circuits0 H3 k% L* n- F
16-210 Conductors for Class 2 Circuit Wiring (Appendix B)
* k# d% i" D( P2 e! mELC: extra-low-voltage cable
! s! p6 n. a2 h0 q2 S* V6 N16-212 Separation of Class 2 Circuit Conductors from Other Circuits; `, ^- W+ s; E7 g N% I+ p
; V1 S& ~, Z% V/ v& e7 A% GSection 18 Hazardous Locations
1 r5 H% q+ L4 B) [" H6 ^' T/ }Scope and Introduction
( F% _. @* E3 Z3 c/ T% c* ?/ K18-004 Classification
! ^: P& H$ E4 D/ H) K$ n18-006 Division of Class I Locations (Appendices B and J)2 p' `5 t$ Y8 z1 h9 p
18-008 Division of Class II Locations (Appendix B)1 G0 m. h6 B5 ]8 U" a \" B
18-010 Division of Class III Locations (Appendix B)
/ u% U. k; f$ s- Y cGeneral
; z2 B- ]2 t- X" z1 l$ k% v( j18-062 Metal-Covered Cable (Appendix B)
! l$ r5 J0 l& O& OInstallations in Class 1, Zone 1 Location9 q6 g+ H* A- B# ]* N# [! {
18-108 Sealing, Class I, Zone I (Appendix B)! y2 j: E9 M+ C
) A; s7 \6 w+ c! w" K& SSection 20 Flammable Liquid and Gas Dispensing and Service Stations, Garages, Bulk Storage Plants, Finishing Processes, and Aircraft Hangars! n/ _( g4 X/ \' S* C
Gasoline Dispensing and Service Stations
+ t' [% U0 C$ c& y M( T20-002 General
, L" B3 Q+ V( C9 T20-004 Hazardous Area (Appendix B)% q- n! ]6 n# L. i& _; o
Propane Dispensing, Container Filling, and Storage
$ @6 v% i, o/ I! x3 d5 W& ]20-034 Hazardous Areas - Table 636 R1 ~1 l' b: l( u9 a
Compressed Natural Gas Refuelling Stations and Compressor and Storage Facilities! c9 L; n" A R/ c$ I- B% F
20-062 Hazardous Areas* B' |: _$ t& Q
Commercial Garages – Repairs and Storage
7 K, Y0 R: p( ^20-100 Scope6 d3 S; s- o) `5 n
20-102 Hazardous Areas (1) ! i1 l' Y, D8 k/ q! ^, A( v* V
1 k' B5 Z0 v% W& \! V, x
Section 24 Patient Care Areas! O! k+ J% ~ ^& F1 F- @6 A8 K
24-000 Scope (Appendix B)
1 `" P% e. T8 Q- g) l24-002 Special Terminology (Appendix B)& k _ F! F; k6 r% p T$ x& M2 s
Patient care area
8 N: E2 @, M* o OPatient Care Areas$ C0 I5 N, d4 `& A- [
24-106 Receptacles in Basic Care Areas (Appendix B)# P6 O" j/ b2 N8 W Z
Isolated Systems$ ^% [$ E/ [: k; G7 v
24-204 Single-Phase Isolated Circuits (Appendix B)
; E* M+ d G1 W8 Q: h: ]$ s1 p24-2066 [# X- R. }6 t9 p
o) I4 O. P: P' m, n ySection 26 Installation of Electrical Equipment" b+ B U x6 x" z/ o. D3 o8 B
General- X! x. Z! f! ], B4 t C
26-004 Equipment Over Combustible Surfaces (Appendix B)
6 s; a: L8 z! e6 ^7 u' e) X26-012 Dielectric Liquid-Filled Equipment, Indoors (Appendices B and G)& G* h m' N4 w* J. s9 L
Isolating Switches$ P' _% O! `$ R/ E6 k& n
26-100 Location of Isolating Switches3 ]2 E/ v8 E8 A
Capacitors5 n) N2 R* d+ `% G' P1 q) E; ?
26-204 Guarding of Capacitors% D. p# p6 f* s7 |
26-206 Grounding of Capacitors
/ P. F4 S) F) E: i" M* n, H/ g26-208 Conductor Size for Capacitors
5 {0 h# c9 E; D( `; w26-210 Overcurrent Protection (Appendix B)4 A/ _2 K! V3 u; _2 Z3 R+ X2 g$ B
26-212 Disconnecting Means for Capacitor Feeders or Branch Circuits
" N4 a( O3 E i1 S$ I# {26-214 Rating of the Disconnecting Means for Capacitor Feeders or Branch Circuits0 a0 ~! O! L# }% W ?, `+ A
26-216 Rating of Contactors for Capacitor Feeders or Branch Circuits
- x5 T. |. d/ X) Y% n7 s26-218 Special Provisions for Motor Circuit Capacitors8 u+ x3 b% O6 u+ h! D0 F' F% ~
26-222 Drainage of Stored Charge of Capacitors
1 U& `: q' X, e2 I) G" N% UTransformers; {4 p0 z" l; M1 e- V: k
26-240 Transformers, General, m0 \! F6 A7 h2 w+ Q2 `6 `
26-242 Outdoor Transformer Installations: t6 B' [( D, @) R. l7 B
26-244 Transformers, Mounted on Roofs (Appendix B)3 \- S- U) I R9 T+ w5 F
26-246 Dielectric Liquid-Filled Transformers Indoors (Appendix B)6 x- x* [. f/ O/ a; y) V
26-248 Dry-Core, Open-Ventilated Type Transformers
- I* ?( g4 y! z/ f7 ]26-250 Disconnecting Means for Transformers
) U; P- l. C s0 k/ v26-252 Overcurrent Protection for Power and Distribution Transformers Rated Over 750V
& z" v7 S5 \5 f! K26-254 Overcurrent Protection for Power and Distribution Transformers Rated 750V or Less, Other than Dry Type Transformers
" b! p( i& M6 E2 ]' d# m1 I8 l9 l26-256 Overcurrent Protection for Dry-Type Transformers Rated 750V or Less (Appendix B)
7 U `3 ^8 U; c9 X3 z26-258 Conductor Size for Transformers, Y6 }4 I9 C0 r
26-260 Overcurrent Protection of Instrument Voltage Transformers (Appendix B)
; u3 E9 E3 [' h9 a/ }26-262 Marking of Transformers
' @9 I1 D2 n, Q8 m! H+ o26-264 Auto-Transformers( M: j- a# i7 m- W1 q' p# y3 c4 n
Fences" P5 q4 h/ E" F
26-302 Clearance of Equipment - Table 33
4 Z" ?& p3 ?7 y$ o9 [4 wPanelboards
Z- ]9 ~0 r5 H% a26-400 Panelboards in Dwelling Units (Appendix B)
1 F8 c, S5 Z9 i( H* } g+ a26-402 Location of Panelboards (Appendix G)( _; d8 Z& g% R% A$ f
Lightning Arresters4 \: K; F! i" x. @) M% u
26-508 Connection of Lightning Arresters* d7 P! Q1 a! E6 a
Storage Batteries
$ X% s0 ]4 x f/ \26-542 Special Terminology
* ]& e" u N# S- h4 t26-550 Battery Installation6 O2 J3 h7 y1 I8 t2 `$ g: ^
26-552 Wiring to Batteries7 M2 P6 D2 G9 Z9 b8 W2 u. W
Arc Lamps2 {3 N; I" [+ L5 f( o3 i
26-600 Location of Arc Lamps
3 @1 e/ P( F B. ^8 U: `- h26-602 Conductors to Arc Lamps
: g: ?3 n& W0 j' u: [4 ^; ?/ P1 Y/ _! k26-608 Globes and Spark Arresters
* B' F* Z% V. W: m) NReceptacles" k9 c }; ^8 S( {1 X
26-700 General (Appendix B)
A7 `$ b/ b0 l; T$ y6 v26-702 Receptacles Exposed to the Weather f) {5 q; Y- q
Receptacles in Residential Occupancies
6 J/ O/ L8 J2 u+ s: d26-710 General (Appendices B and G)
* F& `4 l; {/ X( M8 |- I1 E26-712 Receptacles in Dwelling Units (Appendices B and G)1 N. b7 G- L6 f
26-714 Receptacles in Single Dwellings (Appendices B and G)
" y Y( }; I# K9 z) }# {Branch Circuits in Residential Occupancies
" y" S$ ]( o- Q) D, h26-720 General
; u9 B5 b! ?3 ]26-722 Branch Circuits in Dwelling Units
( ~1 ?7 C7 A3 m, m: P26-724 Branch Circuits in Single Dwellings
s% o/ I* }1 H- M g$ [1 d26-726 Alternative to Split Receptacles and Multi-Wire Branch Circuits in Kitchens (Appendix B): x7 Z& O$ E* U$ i1 T
N 26-720 (F): d$ V' p9 _9 G0 d4 @/ w
Electric Heating and Cooking Appliances
. U6 \6 p6 a0 `26-744 Supply connections for Appliances& [, Q3 j7 c" `+ q' B
26-750 Installation of Storage-Tank Water Heaters
0 @, u4 `5 n- n; {" C/ J26-752 Infrared Drying Lamps& w, o% ^4 m( V- |
( d! ?, |: p! j9 |! j
Section 28 Motors and Generators& E/ i7 k* X1 d. B# l# F! {7 l' L& M
General4 k, S+ G+ ?- S
28-010 Special Terminology r. {& O( [- f& K' l$ N9 A- M) I7 _
Hermetic refrigerant motor compressor h! B8 j$ n: G: @2 J
Locked rotor current rating8 d; O0 e! k# h) [/ x+ L& k
Service Factor
) @* Z5 ]6 M/ q8 O7 C+ FTable 44; Table 45; Table-D2" V' ~3 _4 ^* d5 b: t2 M) y
Wiring Methods and Conductors* k8 w$ `6 T& ?6 m
28-102 Portable Motors
) F4 \. ?" n; z2 w# G t28-104 Motor Supply Conductor Insulation Temperature Rating and Ampacity$ P" d/ [. ^6 P- F$ v& K
28-106 Conductors, Individual Motors4 G# P4 `+ S7 y
28-108 Conductors, Two or More Motors
/ a$ o `, L7 I+ @) s8 k& ]" L28-110 Feeder Conductors
0 x6 |" ~* v: B( V! Z: Z28-112 Secondary Conductors* q+ E$ r" z: W2 B8 J
Overcurrent Protection. r) ~0 B- z+ R9 a
28-200 Branch Circuit Overcurrent Protection
& O* _3 P* `' t# R, p' w w3 ~28-204 Feeder Overcurrent Protection* x8 T G! U# u& ]- v# F1 x
28-206 Grouping of Motors on a Single Branch Circuit
& n. ?% T9 s$ ]2 q. |' S7 e28-210 Instantaneous-Trip Circuit Breakers (Appendix B)% k+ R' J# l1 n% Q8 F0 V
Overload and Overheating Protection
; O/ Y6 o/ b% R* C28-302 Types of Overload Protection
, p$ N# y5 u& i# W3 O/ L28-304 Number and Location of Overload Devices (Appendix B) Table 25, x' s5 \9 t a
28-306 Rating or Trip Selection of Overload Devices (Appendix B)
, _4 a3 |7 p! h% Z8 a28-308 Overload Protection Not Required( ] g3 z3 Z, _4 C- E0 U N
Undervoltage Protection 3 l+ N" r! g6 W* g: ]" a
28-400 Undervoltage Protection Required for Motors (Appendix B)' ^1 `: G) B7 x4 r+ k- T: r
Control9 { H+ _9 g3 R. P" _
28-500 Control Required% m2 P( J+ U! D" K
28-502 Control Location: _1 u! R/ p$ R* X; k# D. M8 i, g
28-504 Starters Having Different Starting and Running Position
; L" x1 e+ \2 |6 f! c! O' m2 ^# Q28-506 Grounded Control Circuit
- O0 ]' g; V }+ c; S8 h+ `. yDisconnecting Means6 k& Q3 h! |/ j- c: ]% I
28-600 Disconnecting Means Required
" F0 n2 ]1 A: w+ h) v1 q- l8 T3 F28-602 Types and Ratings of disconnecting Means (Appendix B)
. d2 D( ^, H# b. \28-604 Location of Disconnecting Means
! s8 V: ~3 Q k, Z6 K4 h4 G9 i% B$ k Hermetic Refrigerant Motor-Compressors1 c V3 P: d% |8 ]6 ], \% w
28-706 Conductor Ampacity5 S; [. C: Q% Q" `8 n) s! e
28-708 Overcurrent Protection
7 Y5 ^7 u, s' n/ E H. u. J28-714 Disconnecting Means e2 d; ^/ M/ H5 o
Protection and Control of Generators2 f# d3 c7 ?) m2 m& j3 }. d
28-900 Disconnecting Means Required for Generators
+ L; h& |6 @2 M) A% O% S28-902 Protection of Constant-Voltage Generators3 u# X/ H( m3 j, y! C
28-904 Generator Not Driven by Electricity/ H" `8 O; W/ V3 ]+ \' C
28-906 Balancer sets6 V5 ^& @# m- }0 J3 e
28-908 Three-Wire Direct-Current Generators- m7 f9 P6 i/ K' s l- O: f
+ o" F/ a4 ?4 p; GSection 30 Installation of Lighting Equipment
0 k5 v! [/ x( n0 O: ~- M' t30-002 Special Terminology (Appendix B)9 u$ g# V# q% J! ~( m. l* U: n. X
General
5 x& s( ]6 o4 y30-102 Voltage
* N1 ?7 b6 p: ]: i2 d30-104 Protection (Appendix B): W" p3 S/ T4 u' Z+ ]6 B4 d; t
30-106 Overcurrent Protection of High-Intensity Discharge Lighting Equipment4 {) J4 a. Z7 T, C4 _
30-108 Polarization of Luminaires
2 o V2 W+ J* g+ j30-110 Bonding of Lighting Equipment/ Q& a, }* ~! M/ c
Location of Lighting Equipment/ q+ ?6 _9 u; s) N' F8 }
30-200 Near or Over Combustible Material
3 V' w* u) E2 y30-202 In Show Windows6 P f+ V: }4 I2 z4 n6 J' L& ]3 f
30-204 In Clothes Closets
. W0 A3 B) j7 S% lInstallation of Lighting Equipment
) z8 m, `- @. @/ c# ~* O30-302 Support+ |9 W: Y& G( m' ^: M) W$ w
30-304 Outlet Boxes to be Covered: }" q ~3 F( t& z, {+ i
30-308 Circuit Connections; ?) x. I' ]( n: O* c- p
30-310 Luminaire as a Raceway& q" S; b& k5 H* Y" Z
30-314 Minimum Height of Low Luminaires
0 M @5 q# Y# H; i) P30-316 Luminaires Exposed to Flying Objects
) t5 d4 M0 f+ |- W) L30-320 Luminaires in Damp or Wet Locations
( p: U3 I! @- r5 V) Q* W' ~N 30-318
( a$ p, l% O: H2 v/ n* Y0 _Wiring of Lighting Equipment+ T% o3 }$ z( k `
30-400 Wiring of Luminaires0 w. `. } K% i3 ` a9 }( B
30-402 Colour Coding
1 J# }5 e5 E0 \2 V$ p- H. r30-404 Conductor Insulation" k; W% G0 d: B' }7 `' W1 h1 h
30-406 Conductors on Movable Parts3 j5 v# Q: w& B
30-408 Wiring of Ceiling Outlet Boxes
! C6 g" l, p) V' _. N7 b/ D30-410 Wiring of Show Window Luminaires
0 b( P2 O9 _* r: T: A5 A30-412 Tap Connection Conductors
. j1 W: o6 @2 ^* i0 dLuminaires in buildings of Residential Occupancy+ f) n5 J1 F+ ]: S
30-500 Lighting Equipment at Entrances (Appendix G)
; m7 N0 T+ m! n6 ]3 h1 v30-502 Luminaires in Dwelling Units (Appendix G): b. B% ~. i3 h0 d% O/ U
30-504 Stairways (Appendix G)
& ~" A7 C" O& o8 P! v+ v30-506 Basements (Appendix G)
4 \7 _' l' b) n/ j! j; X30-508 Storage Rooms (Appendix G)
. f8 W; T+ f7 R) {30-510 Garages and Carports (Appendix G)
5 z$ B: I' a& K0 v& E) v) z) iLampholders' I& U* t' K3 ?7 P3 S
30-600 Lampholder rating with Incandescent Lamps1 K$ }) p7 R5 E/ d H
N CANCEL+ M V8 z k9 ^+ f
30-602 Connections to Lampholders
+ |, t. G" ]4 R) W9 \1 G, j% K2 NN 30-600
& Y! X, }% q+ T' ?, ~* E30-604 Switched Lampholders Used on Unidentified Circuits
; G6 D; m1 @% k. o0 y! oN 30-602
5 D! Y% _- G/ x* i ?& ^. o30-606 Switched Lampholders with Pull-Type Mechanisms; p& J; {1 ] L+ `/ D7 L3 M
N 30-604* e9 m. m' r7 F. l
30-610 Pendant Lampholders$ G0 \8 w2 X1 y- w5 r7 N
N 30-6088 n6 f9 G: a. q& u3 T2 F
Electric-Discharge Lighting Systems Operating at 1000V or Less
5 {1 X1 s0 o: c1 z# C" H/ ?( q30-710 Control (Appendix B)
1 x! n0 s# h* j30-712 Branch Circuit Capacity
& T/ A# p" E( `Electric-Discharge Lighting Systems Operating at More Than 1000V
" @( z ^( S$ h- R, G30-802 Voltages, Dwelling Units
' j; J1 |0 m. [: I7 J8 x30-804 control (Appendix B)
* A7 k+ k1 _ q4 t9 L0 uRecessed Luminaires (Appendix G)
1 j# i9 _6 E- O" \# S30-902 Spacings for Non-IC Type Luminaires9 ` U. `3 @! x: h0 i
30-910 Wiring of Recessed Luminaires (Appendix B)( }0 V8 |2 S$ K+ O' _
Exposed Wiring for Permanent Outdoor Lighting; B# {$ s' f. n9 Z( A' h$ F4 k/ H
30-1120 Branch Circuit Loading and Protection
0 c y* H7 @. I9 o& T0 E4 S HExtra-Low-Voltage Lighting Systems( l1 S2 o; e4 ~4 C% e
30-1202 Sources of Supply- Q3 D- w( m/ u" ]
7 Y3 S8 `! m$ T2 R9 d# b3 U# sSection 32 Fire Alarm Systems and Fire Pumps (Appendix G)
2 ^0 o& `6 u0 f5 EFire Alarm Systems
& I, ]: |( N+ a32-100 Conductors% V- [6 N4 N/ H$ i% F" J
32-102 Wiring Method
+ r6 A2 [/ {, Z9 q% E5 W32-104 Equipment Bonding9 L# y: P# @+ ], C( t% b$ A
32-106 Electrical Supervision j |" L) m8 w5 V$ U/ o
32-108 Current Supply, b6 g- m3 {# _' i
32-110 Installation of Smoke Alarm Devices in Dwelling Units (Appendices B and G)- V' t+ P# O9 A" a$ ^4 R0 O+ C9 ]5 s, _
Fire Pumps
. o& ^- M! U( p& V3 I D, ^4 m6 K; s32-208 Overcurrent Protection (Appendix B); v- N4 ^. {3 E5 u
N 32-206
3 [0 r5 c" }0 M, r8 G4 r32-210 Overload and Overheating Protection (Appendix B). M% p3 I* b0 X2 Z/ S! E' E; y
32-212 Ground Fault Circuit Interrupter (Appendix B)- ~9 ?+ Y4 A8 z5 V$ ~5 {
; t+ U2 g) v' Y) A* m* N7 F! iSection 36 High-Voltage Installations& a4 Q! F& j. S" \3 |* ]6 [6 m9 I; q
General
; e& T1 b! L% l I( z) ^+ |1 U2 ?36-000 Scope (Appendix B)
* P4 l5 ]' `2 Y+ m! i. D* ~36-006 Warning Notices
: [7 v/ N2 s, J3 v& oWiring Methods' `2 I$ [5 G7 d! k0 d( _- z6 ` r. j
36-102 Radii of Bends( T7 F1 c$ {3 Y& l, H9 B
36-104 Shielding of thermoset insulated conductors( Q9 o2 h* Z& L* g x8 v
36-108 Spacing of Exposed Conductors (1) table 30, table 31
" D3 }9 d: H1 [+ j: t36-110 Guarding of Live Parts and Exposed Conductors - Table 32, table 33, table 34
' k! F2 ?& n; H- ]Control and Protective Equipment n2 o+ [4 E( Y8 [/ L" h* x6 s$ h
36-214 Disconnecting Means: v- U, p" \3 g& \. u5 C. n/ }5 J" A& V
Grounding and Bonding
* Y- \9 R8 e& {6 J36-300 Material and minimum size of grounding conductor and ground grid conductor and connections" I: F- ~2 ~$ [- L* K; O9 a0 {
36-302 Station Ground Electrode (Appendix B)
5 s/ f' l9 k X, m% w4 R. I9 c4 ]2 M36-304 Station Ground Resistance (Appendix B)
6 X2 f5 C& Z/ Q. q4 a0 e36-308 Connections to the Station Ground Electrode (Appendix B)
# e& _) _7 W3 M. K36-310 Gang-Operated Switch Handle Grounds- S* b# k' h2 k3 d h8 y
36-312 Grounding of Metallic Fence Enclosures of Outdoor Stations
4 z9 @, h- p3 y. [/ O" {: |3 w$ o0 g
/ u& m/ u7 Y7 NSection 38 Elevators, Dumbwaiters, Material Lifts, Escalators, Moving Walks, Lifts for Persons with Physical Disabilities, and Similar Equipment
4 s8 {! \5 P# P2 ~- ?38-002 Special Terminology (Appendix B)9 i+ i3 ~4 N% ` G
38-003 Voltage Limitations (Appendix B)# \ n. u# f) e# M
38-004 Live Parts Enclosed0 F7 [. W2 @% A; \/ |
38-005 Working Clearances
/ y. ~; o' N+ W! ~5 c) u38-011 Insulation and Types of Conductors7 X% }- r/ s( F* d' l
38-012 Minimum Size of Conductors
9 G( [# S/ T+ N; _) h
$ r6 a5 ?$ t( VSection 40 Electric Cranes and Hoists7 i \1 {# G9 E# K* ^ _9 P
40-008 Disconnecting Means( T5 v0 D/ w3 G; g5 Q, J b
40-010 Main Contact Conductors! U5 I( @: }2 s# X ^# Z
( C% ?4 u; I2 M+ r
Section 42 Electric Welders v8 f. y i, q0 Q9 F8 `
Transformer Arc Welders: _ O6 ]& y% f$ C
42-006 Supply Conductors
3 E% Y; L1 i5 ^4 {# K2 t7 X+ i& J) L" u
Section 44: Theatre Installations" H6 _+ q# ]+ O
General/ X% M: W8 v E$ i, S
44-104 Number of Conductors in Raceways
- w5 H) p- x8 _3 p44-106 Aisle Lights in Moving Picture Theatres# b* t* s" y& \) U6 w; S8 a. x
Fixed Stage Switchboards
) S! N3 m3 M3 n) T- k44-210 Overcurrent Protection
]% I6 r$ Z) s+ |/ XFixed Stage Equipment' g* X, p' \6 j$ E+ [1 o2 L
44-324 Receptacles in Gallery Pockets
M1 w# k9 v* W! F# ], H) E44-326 Receptacles and Plugs9 F2 Y2 \& m( c2 t) G- i7 k Z
- M- g6 O0 t3 k+ w( h0 \Section 46 Emergency Systems, Unit Equipment, and Exit Signs
# n/ J/ ]* h2 ~' G& ~General; k. J& d8 j( m
46-102 Instructions
, t) M5 T# d8 f8 ?0 c6 {% C' H3 i46-108 Method of Wiring (Appendices B and G)4 S/ y% V- m0 K; ~8 C8 `
Emergency Systems
; v7 C3 D# M$ n3 i5 a+ c% M" T46-202 Supply (Appendix G)' W) k& W/ O7 G: W3 O4 k
46-204 Control1 _) L4 k; M5 w/ x- F' r) S
46-206 Overcurrent Protection
9 b# q# [% B }6 A _46-210 Remote Lamps
& ]# c+ a- k$ b: G( pUnit Equipment0 g! M0 b5 t$ m' D
46-304 Supply Connections
/ w+ q' z# y/ }& }/ U- N46-306 Remote Lamps (Appendix B)
' }4 W, Q: X: U2 A/ a/ }Exit Signs4 u" `; I: u' g1 A: O% Q+ _3 U# H
46-400 Exit Signs (Appendix B and G)
5 a& S+ W5 q o2 k i/ p: _7 s4 D0 @' ^3 M+ }4 j# @" c5 ^" Y
Section 54 Community Antenna Distribution and Radio and Television Installations5 l" o/ _1 y$ o
54-000 Scope
/ p9 A* O) a6 t/ U* ^5 n7 {) Q2 z% x54-004 Community Antenna Distribution (Appendix B)4 B( J& j9 ~& M
Community Antenna distribution
! y: H" n# Z7 l54-100 Conductors
; a( A; C) a& S, Q0 |/ H) t( ^54-102 Voltage and Current Limitations (Appendix B)7 z) _$ f' s/ s _
Protection6 P% o" y7 v( o& k; _
54-200 Grounding of Outer Conductive Shield of a Coaxial Cable (Appendix B)3 @, i! N: J: V7 E- g6 c W& O
Grounding
1 T: d8 e8 f$ p; Q- o: s- N6 Q. I54-300 Grounding Conductor
9 S- F/ E3 M0 A+ e- L5 Z# Z' gConductors Within Buildings
0 _# s* u% [) U" v$ |2 F54-400 Separation from Other Conductors$ T1 V& J: i0 |8 G7 c" A1 h
Equipment
7 v( m+ L' Y4 d7 ^6 x54-500 Community Antenna Distribution Amplifiers and Other Power Sources
2 T3 F/ z- t/ x% T54-502 Exposed Equipment and Terminations
" T T. D0 X2 o f% N/ V7 _+ h( }( {) s1 j
Section 56 Optical Fiber Cables0 G' Z$ ?" o& t1 P; n
General% a( D9 D, Z& u
56-100 Special Terminology
- j4 r( b; R- F! T" O. R% H. `56-102 Types
5 P% D' r& P, {. K6 y0 _Installation Methods
* w- O# X/ h+ {2 P5 d" U8 H8 ^8 t56-200 Nonconductive Optical Fiber Cables (Appendix B)
) t/ P! B7 }& O6 b) ^9 g) i56-202 Conductive Optical Fiber Cables (Appendix B)1 P% i; c+ a; R- m
56-204 Hybrid Cables- A# E5 F- ~9 X) C4 ~
56-208 Optical Fiber Cables in a Vertical Shaft (Appendix B)2 j" v* `0 P9 {9 W
/ s" q: W3 x1 u6 g& [. ~
Section 60 Electrical Communication Systems
4 f6 [: S; {, lGeneral8 H5 H- \1 J+ z
60-100 Special Terminology
* K0 Z+ E+ D7 ~6 t2 n/ l2 A2 bProtection
2 X k6 [/ ^) p) w60-202 Primary Protector Requirements
) S; R2 j' ?9 W6 nInside Conductors4 M7 U9 O, m6 Q8 i8 @
60-308 Separation from Other Conductors
. r+ v& A( F" L7 vEquipment0 `: s9 F4 U( Z" F
60-404 Exposed Equipment and Terminations
) K K" f2 i. @: bUnderground Circuits
7 s2 E8 S" m+ w" j6 x60-600 Direct Buried Systems. I g/ |; N+ v" H: g* Y' d
. u6 s! x+ Y& f% u/ ~
Section 62 Fixed Electric Space and Surface Heating Systems7 N' Q6 y/ T, s/ c( b
General
+ x3 \3 ~6 e5 k6 F7 n$ g$ @62-102 Special Terminology
" i( E4 E' ]( o7 C0 \ {: \62-108 Branch Circuits3 i1 J: p( R4 j( N3 f+ q
62-110 Installation of Fixtures3 g6 T5 \* y0 g2 s% e# v/ T' ?% p
62-114 Overcurrent Protection and Grouping (Appendix B) (5)
: A6 p% k9 n' @0 ~5 ]62-116 Demand Factors for Service Conductors and Feeders (2)
- C+ B& ~- X3 ~5 R5 g: ^62-118 Temperature Control Devices; k: ~3 Z% \7 `4 d
62-122 Installation of Series Heating Cable Sets (4)(7)
' ]; Z3 S' {9 s% D) v7 r6 X4 j U( f) ?Electric Space Heating Systems
/ W6 A, o& x0 g62-202 Temperature Control
4 t6 D# @; o- [! \* ?7 P62-206 Proximity of Other Wiring (Appendix B)
0 W& ~' Y5 d. Y% N62-214 Installation of Heating Panels and Heating Panel Sets( r' y9 i) r2 P& m
62-218 Series Heating Cable Sets in Cement or Plaster Ceilings6 [# R$ k, K* T3 X6 G
62-226 Installation of Under-Floor Covering Heating Panel Sets
5 q7 O' [. S. E- @9 t6 wElectric Surface Heating Systems
. ]; w8 [$ K5 m2 N( z62-306 Heating Cables and Heating Panels Installed Below the Heated Surface
) U5 N* ]+ @' _+ W; C7 u" m
4 v e8 s6 U; m/ K+ n4 w" _2 h. ?4 xSection 68 Pools, Tubs, and Spas% a7 K1 M5 O8 N/ x6 j7 z: ~
General, _) {& l$ t- W+ Z; d) D' G$ M% {
68-050 Special Terminology
5 O, \( x: {: p% o. c8 ?68-056 Underground Wiring - Table 61
. P% r' M$ z1 j68-058 Bonding to Ground (Appendix B)' ], E1 ~: p& }: I0 r) s
68-060 Junction and Deck Boxes (Appendix B)2 G- D2 L1 r+ \! Y' J ]
68-064 Receptacles
/ F- I& l3 n# d" ^ h68-066 Luminaires and Lighting Equipment5 D+ l# b; t9 C2 [, L# i
68-068 Ground Fault Circuit Interrupters (Appendix B): k. [; _) c" S C# {8 v
( @, ^/ Y0 R" x. {Section 70 — Electrical requirements for factory-built relocatable structures and 8 j6 b) c* R; Y) F$ a7 P' H
non-relocatable structures
0 {/ f3 l. f; m! P2 q70-130 Tests (see Appendix B)( f- n6 r% G0 M% Q3 q
( l. D6 x( g, \% K; E! u, jSection 76 Temporary Wiring (Appendix G)
% Y! m: w" m7 J/ |, Y( k76-004 Grounding
3 B q6 N# u/ k0 {1 S76-008 Service Entrance Equipment# ^6 M) h" @% y& V+ g
N 76-006
: I0 q* C' h$ e8 m2 X& F' q! O76-014 Branch Circuits! D" M) ]. }$ z; a, [: B
N 76-012- Z% b- k t2 p2 N# E1 C( E
1 Z: e& w) K8 i, e6 I. V: BSection 78 Marinas, Yacht Clubs, Marine Wharves, Structures, and Fishing Harbours6 R" _5 G* i8 k8 h1 D- U
Marinas and Yacht Clubs# v( o5 a& {6 u+ w( e/ S% c+ \7 ]
78-052 Receptacles
3 P! P0 S0 q5 p9 z! N78-056 Feeders and Services
& K4 N& A( ?0 `0 V4 M( EMarine Wharves, Structures, and Fishing Harbours+ {8 l. D) b( |" L; a e- M# T1 l
78-106 Grounding and Bonding
5 p! o. O* y V6 T- qTables8 z0 \; C4 _; }3 s8 B
1,2,3,4,5A,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- v$ A9 j' i0 ]8 Q8 r* t5 `1 ~
/ |3 b9 w+ G1 \' I+ I
Diagrams: 1, 2, 7
" T O) t# a+ F& H P% J& }5 ~% e9 P0 V$ H
Appendix B
3 c2 K v* v+ V# o& O4 @# ~/ _( rP352: Ground fault circuit interrupter- 6mA$ I9 e6 w7 z, o
P354: 2-126 FT1, FT4
2 W, J7 K$ H. Z0 q4 KP366: 6-112(4) An assembly considered to be installed in an acceptable manner is one where: (c), (d), (g)
7 S: T; s& }+ q3 ~" }6 X9 }+ `. V1 }. u: xP367: 8-200, 8-202, 8-208, 10-408(3), 10-814(1)( v- E; _5 W6 ~5 O7 l+ P
P370: 12-1012, 1118, 1214 Example:
- ]6 k' c. E2 A3 gP371: 12-1108
) \" d- v% Q) ^( j. b0 ]: DP381: 18-108(1)(b), 18-158(1)(b). E2 b- z: L* U/ z4 U
P386: 24-206
8 {) @- [% |" J- mP389: 26-256
6 j+ z% L C- tP391-P393: Section 28, Example to determine Motor Conductors and Protection
( R' ^- M( j8 k4 f- N7 D0 ]! O; N7 j5 V2 E# o
Appendix D
3 l0 q4 }0 w6 mTable D1, D2, D3, D4, D5, D6, D7, D16 |
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