4 018 (See App B) m Revised wording and clarification of requirements when selecting conductors

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Ethan Bishop
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1 2012 Canadian Electrical Code Changes (CSA Errata not included) M = minor / S = significant / D = deleted N.m (Newton.metre) m New unit of torque Definitions cablebus m newly recognized wiring method ground fault circuit interupter (GFCI) m Revised definition ground fault circuit interupter Class A (GFCI) m New definition ground fault detection m New definition ground fault protection m Revised definition Grounding conductor m New App B note m Revised description of GFCI protection required (Class A) 2 310(2) m Revised wording on requirements 2 304(1) S New wording to clarify when working on live equipment may be acceptable. App B notes describes tasks to clarify what is "infeasible" and references Z S NEW rule requiring a roof top receptacle to provide power during maintenance of roof top units 4 004(1)(2) S New revisions, ampacities increased across the board (T1 T4), T4), Instructions for determining ampacities of underground runs clarified, some AppB notes brought forward as subrules. Additional subrule revision defining when IEEE 835 calculations must be used S Changes to subrules (9)(10)(12)(13)(21) Ampacity of single conductor cables in free air or in contact. New Table 66, Ampacity of Bare conductors in free air (See App B) S New rule, Conductor Temperature Limitations. This new rule prescribes how wire ampacity and temperature rating is based upon markings found on the equipment Equipment marked with a temp rating will result in the conductor ampacity being based on the corresponding temp column in Tables 1, 2, 3, or 4. See new explanation App B (See App B) S Revised wording and clarification of requirements when selecting conductors S New Rule regarding Induced voltages and Currents in single conductor runs, rewrite and consolidation from other Rules ( ), APP B (See App B) m Revised wording and clarification of requirements when selecting conductors (See App B) m Revised wording and clarification of requirements when selecting conductors (See App B) m Revised requirments for reduced neutrals

2 4 034 (1), (2), ans (3) m Copper sheathed cable recognized as approved (1) (See App B) m Revised wording and clarification of requirements when selecting conductors 4 042(4) S NEW subrule added, recognizes type "DLO" cable. "See App B" 4 040(2) S NEW subrule about DLO cable "See App B" m New reference to Rule (1) (1) ( c) S Revised to allow for new subrule (3) (3) S New subrule, Exterior service box acceptable on pole or building S Editorial, Rules rewritten to provide clarity. Conductors used must be acceptable as referred to in rule Reference to Table 19 removed, effectively no change. Subrule (b)(ii)(b) allows a splice in service cable for underground services, "where a cable transition is made to meet the requirements of Rule m Editorial changes to clarify wording. "Copper sheathed cable" added as an acceptable wiring method (1) (2) m Copper sheathed cable added as an acceptable wiring method c S Revision to allow a splice in consumers service neutrals, reference to 4 005, same as change to (1)(a)(vi) S New subrule, electric vehicle charging loads are taken at 100% for SFD service calculations (3) m Revised wording adds Rule reference 8 202(3)(d) S New subrule, Demand factor for electric vehicle charging equipment for apartment service calculation taken at 100% Scope m Major rewrite of scope Object m Major rewrite of object (2) m Revised description of ground fault detection S New requirements for ungrounded systems S Clarification of methods acceptable for the bonding of electrical equipment to the grounded system conductor (2) (a) S Revised requirement for interconnecting ground rods m Revised description of lightning rod terminology S Editorial changes to clarify DC system grounding requirments. New subrules to harmonize PV and renewable energy system grounding requirements with AC system requirements (now sized as per ) S Important rewrite of existing rule, system ground now sized to #6 when electrode conforms with Rule

3 (2) S Revised wording, parallel bond wires now required (4) m Size of sand particles changed when bedding UG ducts m Revised description of lightning rod terminology S Revised wording, all insulation types included (1), (2), (3) S Editorial, subrule revision when using parallel conductors. Parallel conductors must use same material per phase but each phase may be different conductor material. One splice per conductor permitted of each single conductor in parallel sets when required to comply with temp/ampacity reasons (reference made to 4 006) (4) S NEW requirement for support of internal conductors within armoured cable when used in vertical runs. Options provided to meet support requirements for cables in vertical runs. See App B explanation (3) S Revised subrule wording for clarity. New subrule prohibits fishing NMD cables in steel stud or steel cladded walls! (4) S Switches & receptacles with integral enclosure (no box). 150mm 300mm of cable loop required for future replacement. Appendix B note references other related rules, (7), (7) S Revised wording for clarity, NMSC cable may be fished except where steel stud wall / framing systems used (6) S NEW subrule permitting armoured cable with overall jacket to be pulled in raceways subject to (2) (3) S NEW subrule specifying minimum bending radius when armoured cable installed in conduit and tubing (not all raceways) as allowed by12 602(6) (3) S New revised subsection title, copper sheathed cable recognized S NEW subrules providing specifications for pulling armoured cable into conduit and tubing (not all raceways) (4) (d) S Table 10 renumbered as T10A S New requirements when securing liquid tite conduit (2) S Each compartment of multi compartment wireways to be treated as a separate wireway (2) S Revised subrule wording, Requirement to follow load/span ratings for cable trays, trays to be marked with ratings (3) m Revision to word "trays" now "tray" S NEW rules for installation of cable bus wiring system

4 (3) S NEW subrule re bonding of metal connectors when used to terminate non metallic wiring systems (8) S NEW subrule, Outlet box not required for switch or receptacle with integral enclosure, NMD only (9) S NEW subrule, For pendant ceiling fans weighing less than 16 kg, the box supporting it shall be approved and marked for fan support. See App B (7) S New sunrule re: switches and receptacles approved with an integral enclosure (8)(9) S New subrules, outlet box shall be approved when used to support ceiling fans.fans and accessories over 16kg shall be supported independently of outlet box (3) m Revised, inclusion of " or cable tray" (7) m Revised wording and clarification of requirements when selecting conductors (4) S NEW subrule enclosures housing o/c devices, controllers, or external switches shall be approved when CT devices or energy metering devices are also installed S NEW subrule, rating of OC device shall not exceed 15A, 20A, 30A for #14, 12, 10 AWG copper and 15a for #12 aluminum conductors except as provided by other Code rules (1) m Revised wording for clarity (2) m Switches must be approved m Revised wording and clarification of requirements when selecting conductors (1) S Revised subrule, Class 2 conductors shall be selected to comply with 4 006, Class 2 conductors smaller than #14 can be listed equipment wires if installed in raceways (1) S New EX markings from IEC, Equipment Protection Levels (EPL's) (2) S EPL Type "Ga" acceptable S EPL Type "Ga" or "Gb" acceptable (3) S Revision of HL cable sealing (1) S EPL Type "Ga" or "Gb" or "Gc" acceptable (2) m Rewording for clarification (1) m Copper sheathed cable approved (3) m Automatic requirement for cable seal when length exceeds 10m is deleted (1) m Rewording for clarification S Editorial, clarification on acceptable wiring methods in Class2 Div2. Acceptable armoured cables expanded to include "copper sheathed cable" and aluminum sheathed cables. New installation requirements when using type CIC cable in Class II Div 2

5 18 302(1) S Editorial, clarification in Subrule (1) of acceptable wiring methods in Class III Div 1 locations. Use of Types "copper sheathed RC" aluminum sheathed RA recognized (a) m Clarification that ground fault "detection" required S Editorial, clarification of acceptable wiring methods, Class III, Div 2. Acceptable armoured cables expanded to include "copper sheathed cable" and aluminum sheathed cables. New installation requirements when using type CIC cable S Total revision, wording replaced by NEW Table m Rule deleted to m Renumbered back when deleted (1) S Subrule revision, Clarification of hazardous areas and de classification of showrooms provided 50mm curbs installed (2) S Editorial, clarification of lighting fixture types over hazardous areas non hazardous types OK if protected by guards or location when fixture 3.6m or higher (1) m Aluminum sheathed and copper sheathed cable approved (2) m Revised wording and clarification of requirements when selecting conductors (1) m Revised wording and clarification of requirements when selecting conductors (3) m Revised wording and clarification of requirements when selecting conductors (5) m Copper sheathed cable approved (1) and (3) m Revised wording and clarification of requirements when selecting conductors (1) m Revised wording and clarification of requirements when selecting conductors (2) m Copper sheathed cable added (3) m Copper sheathed cable approved (6) S NEW subrule, Branch circuits that supply receptacles which are deemed essential (life/safety) shall not supply any other receptacles not deemed essential (8) S NEW subrule, Clarification that non electrical equipment in patient care environment shall be bonded if it could become energized (6) m Revised wording for clarification (2) m Item (2) deleted eg: description of prime mover requirements S NEW Rules for "Cellulose Nitrate Film Storage" Note, Section 48 Movie has been deleted S NEW Rules for "Cellulose Nitrate Film Storage" Note, Section 48 Movie has been deleted S NEW Rules for "Cellulose Nitrate Film Storage" Note, Section 48 Movie has been deleted.

6 S NEW Rules for "Cellulose Nitrate Film Storage" Note, Section 48 Movie has been deleted S NEW Rules for "Cellulose Nitrate Film Storage" Note, Section 48 Movie has been deleted (1) m Copper sheathed cable approved m Revised wording and clarification of requirements when selecting conductors (12) S New subrule, All receptacles installed in a child care facility shall be tamper resistant (1) and (2) S Exterior receptacle cover plates shall be approved for "wet" locations , New Subsection S NEW rule requiring receptacles for maintenance of roof top electrical equipment (d) m Revision to new receptacle designations (e) S Clarification of receptacle requirements in laundry rooms and spaces (o) S Receptacle required when mandated by BC Building Code and local By=Laws (d) (iii), (iv) and (v) (See App B) S Revision to new receptacle designations AND RE: Island and Peninsula receptacles. Significant change by addition of the word "continuous". See App B (h) S Subrule reworded to clarify where Tamper Resistant receptacles are NOT required ( c) m Revision now requires garage door opener receptacle (b) m Clarification of branch circuit requirement in laundry room and spaces (g) S NEW subrule, dedicated branch circuit for vehicle charging receptacle in single dwelling see (o) (b) m Revision to new receptacle designations (g) S AFCI protection of receptacle in BR supplying sump pump not required (5) m Clarification that 40 A breaker OK to supply 50 A range recptacle to m New sub section heading, new requirements for "Bare element water heaters" m Rewording for clarification (4) S Subrule (4) wording revised, new methods listed for providing disconnecting means at fluorescents over 150 V to ground (2) m Revised wording and clarification of requirements when selecting conductors (1) m Revised wording and clarification of requirements when selecting conductors (c) m Revised wording and clarification of requirements when selecting conductors (1) and (2) m Revised wording and clarification of requirements when selecting conductors m Revised wording and clarification of requirements when selecting conductors (4) m Editorial, Rules rewritten to provide clarity. Conductors used must be acceptable as referred to in rule Reference to Table 19 removed, effectively no change.

7 32 102(1)(c) S Subrule revised, rigid PVC without concrete encasement or direct burial permitted for conductors of a FA system. Previously allowed only in combustible buildings (b) Editorial, subrule rewritten to provide clarity. Conductors used must be acceptable as referred to in rule and reference to Table 19 removed, effectively no change (1) S Editorial, clarification that the fire pump transfer switch shall be used solely for the fire pump (1) ( c) m Editorial, revised wording corrects referece error in 2009 Code (2) S HV Breakers and LB Switches now only require contacts visible in open position. Where this design is not possible the additional requirements are unchanged (3) S Subrule revision, Clarification of requirements for a remote station ground electrode (1) and (4) m Revised wording and clarification of requirements when selecting conductors (1), (2) and (3) m Copper sheathed cable approved, Revised wording and clarification on selection of conductors (5) m Rewording of auxillary power requirements Scope m Revision to scope, reference to CSA No.33 exemption to Code deleted (1) m Copper sheathed cable now approved (1) m Copper sheathed cable now approved (1) m Revised wording and clarification of requirements when selecting conductors Rule title revised m (2)(c) S Subrule revised, rigid PVC without concrete encasement or direct burial permitted for conductors of a emergency system (3) S Subrule revision, Allows ENT in combustible buildings for Life Safety systems (3) m Wording clarification S New subrule, Conductors supplying Life Safety equipment shall be protected against fire exposure. See App B Examples same protection that is required for high buildings (renumbering of rules from ) Section 48 Deleted m S New terms replaces "rated open circuit" S Important change on how to calculate the voltage rating of the voltaic output source in relation to the voltage rating of equipment conductors etc rating S NEW Rule on voltage drop from voltaic source to utilization with number choices as how to calculate S Clarification on the current rating for the voltaic circuit S NEW wording regarding overcurrent protecting

8 S NEW rule requiring arc fault protection for photo voltaic DC source and output circuits S NEW rule regarding disconnecting means S Major rewriting of rule concerning wiring methods referenced RVP RVPU conductors S Clean up and new subrule (2) requiring tools to open attachment plugs S NEW rule re methods of interconnection of modules shall NOT interupt bonding arrangements S Interconnection to utility referenced to section S New rule re Solar voltaic grounding references section S New rule re power conditioning units references to section (2) m Revised wording and clarification of requirements when selecting conductors (1) m Revised wording and clarification of requirements when selecting conductors m Revised wording and clarification of requirements when selecting conductors (1) m Revised wording and clarification of requirements when selecting conductors m New definitions for infrared radiant heaters (2) (3) S NEW Subrule (3) "Where service conductors or feeders are used to supply an electric thermal storage heating system, duct heater, or an electric furnace, the connected heating load shall be calculated at 100% demand factor." As per subrule (4), this applies to residential commercial is still at 75% (3) m Revise wording and clarification of requirements when selecting conductors m New subrules re thermostat location ( BC amendment wording) (3), (4), and (5) S Revised rule requiring disconnects for central heating units (now required) (9) m DELETED, (re nailing panels to ceiling joists) S NEW rules for infra radiant heaters with metal sheath Section 64 ALL NEW SECTION S NEW section 64 re renewable energy systems (4) S NEW Amusement Parks etc. Subrule (4) Deals with modern wiring methods of single conductor cables/connections (2) S Splash pads are considered pools (kid water parks) S Definitions for splash pads (7) m Spas and Hot tubs must be GFCI (4)(e) S Spas and hot tubs. Emergency shut off and alarm devices can be field wired (1) m Revise wording and clarification of requirements when selecting conductors (4) S GFCI protection for heat trace under mobile homes can be Class B (4) (1) m Reference to NEMA Standard WD6 deleted

9 (1) m Revise wording and clarification of requirements when selecting conductors (2) m Revise wording and clarification of requirements when selecting conductors (2) m Revise wording and clarification of requirements when selecting conductors (10 and (2) m Revise wording and clarification of requirements when selecting conductors (1) m Revise wording and clarification of requirements when selecting conductors (c) S Subrule (c) has been deleted. The branch cct for a cathodic protection rectifier no longer needs to be supplied from a source that is capable of being locked in the ON position S NEW Disconnecting Means Several new requirements regarding cathodic protection (1) m Revise wording and clarification of requirements when selecting conductors definitions m Revision to definition of Electric vehicle inlet S NEW rule re permanently and cord connected equipment to comply with section DELETED (1) S Change requiring a sigle receptacle 5 20R for vehicle charging S NEW rule if the vehicle is a power producing source (3) S NEW subrule re charging equipment near flammable liquids and reference to sec S NEW rule height of vehicle charging equipment Table 1 Table 2 S S Major changes to conductor ampacities. See & App B Explanation, (2) (heading changes) Major changes to conductor ampacities. See & App B Explanation, (2)(heading changes) Table 3 S Major changes to conductor ampacities. See & App B Explanation, (2) (heading changes) Table 4 S Major changes to conductor ampacities. See & App B Explanation, (2) (heading changes) Table 5A S Completely re written. New intermediate temperatures added Most correction factors changed thereby reducing the derating of conductors for a given temperature. This results in higher ampacities (heading changes) Table 5B S Heading changed. Instead of "in contact", "spaced less than 25% of the largest cable diameter" Also, references cable tray, Table 5D S Reference to 4 004(9) added. Table 6 S Additional conductor types added Table 10 S Renamed Table 10 A Table 10 B S NEW Table for PV equipment conductors

10 Table 11 m New conductor types added, Notes revised Table 12 S New ampacities for some conductors, new columns added Table 12 A S Title revised Table 12 E NEW S NEW Table 12 E for type DLO conductors Table 17 DELETED S Deleted table for grounding conductor sizes Table 19 m New conductor types added, Notes revised and New notes added, Types copper sheathed cable, aluminum sheathed cable and Type ACG90 and ACGWU90 added Table 44 S Additional motor sizes added, revised ampacities for some sizes Table 64 S Delete existing table, replace with new rewritten table, New notes added Table 66 NEW S NEW Table Ampacities of Bare or Covered Conductors in Free Air Diagram 1 m Type TT 30R added, other new receptacle designations added APPENDIX B NOTES S Example of when it might not be feasible to disconnect power before work. Reference to Z S New notes regarding cable ampacities underground, IEEE (1) (d) and (2) (d) S Better explanation for underground installations and ampacities S Explanation of effects of temperature rating of equipment on the conductor ampacity S Lengthy, good explanation regarding induced voltages and sheath currents, single conductor cables S Explanation of cold temperatures and handling conductors (4) S Explanation of self contained devices without a box S Explanation of pulling armoured cable into raceways (8) S Explanation of self contained devices without a box (7) S Explanation of self contained devices without a box (9) S Info regarding boxes marked "Acceptable for Fan Support" (2) S Explanation of filling up the interior of panel past certain percentage to allow for heat dissipation S Table for "T" and "L" designations for AC DC switches /090/100/150 S Introduction of equipment protection levels in hazardous locations (3) S Sealing requirements/options for intrinsically safe and non incendive wiring systems (12) S Explanation of tamper resistant receptacles in child care facilities S Explanation of "WET LOCATION" cover plates S Explanation of new requirements for receptacles near roof top equipment (h) S Explanation on location requirements for TR receptacles.

11 26 712(d)(iv)&(v) S RE: Island and Peninsula receptacles. "It is intended by the rule that a continuous counter surface is one which is not interrupted by sinks, ranges, and other build in equipment." (g) S Explanation of sump pump receptacle located in sleeping area need not be on AFCI S Explanation of marking regarding "Bare Element Water Heaters" S Explanation regarding protection from exposure to fire for conductors from an emergency generator (1) S Explanation of the 125% rating for this rule in regards to temperature (2) S Example of calculation for temperature variance for voltage rating of solar conductors (1) S Explanation of maximum short circuit current available when solar panels connected in parallel S Explanation of the use of flexible cable for solar panels and mechanical protection (5) S Explanation of FT1 rating for RPV and RPVU for use in buildings Section 64 S Section 64 " Renewable Energy Systems" comprehensive notes on the complete section (4) S Clarification of type of GFCI required for heat trace receptacles mounted under the trailer

Spring Test 10 due 05/11/2013

Spring Test 10 due 05/11/2013 Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. When installed in an agricultural building that houses livestock