2012 Electrical Code Changes – Module 4 Sections 38 – Tables / Diagrams

ETEL-13(02)-00 (2012-03-26)

Table of Contents Section 38 — Elevators, Dumbwaiters, Material Lifts, Escalators, Moving Walks, Lifts for Persons with Physical Disabilities, and Similar Equipment ....................................................................................... 2  Section 40 — Electric Cranes and Hoists .................................................................................................... 3  Section 44 — Theatre Installations................................................................................................................ 3  Section 46 — Emergency Power Supply, Unit Equipment, Exit Signs, and Life Safety Systems ....... 4  Section 50 — Solar Photovoltaic Systems ................................................................................................... 8  Section 54 — Community Antenna Distribution and Radio and Television Installations .................... 12  Section 56 — Optical Fiber Cables ............................................................................................................. 12  Section 60 — Electrical Communication Systems .................................................................................... 12  Section 62 — Fixed Electric Space and Surface Heating Systems ....................................................... 13  Section 64 — Renewable Energy Systems ............................................................................................... 15  Section 66 — Amusement Parks, Midways, Carnivals, Film and TV Sets, TV Remote Broadcasting Locations, and Travelling Shows ................................................................................................................. 17  Section 68 — Pools, Tubs, and Spas ......................................................................................................... 18  Section 70 — Electrical Requirements for Factory-Built Relocatable Structures and NonRelocatable Structures .................................................................................................................................. 18  Section 72 — Mobile home and recreational vehicle parks ..................................................................... 19  Section 76 — Temporary wiring (see Appendix G) .................................................................................. 19  Section 78 — Marinas, yacht clubs, marine wharves, structures, and fishing harbours ..................... 19  Section 80 — Cathodic protection ............................................................................................................... 19  Section 82 — Closed-loop and pre-closed-loop power ............................................................................ 20  Section 86 — Electric vehicle charging systems ....................................................................................... 21  Tables .............................................................................................................................................................. 23  Diagrams ......................................................................................................................................................... 27  Appendix B ...................................................................................................................................................... 31   

©

British Columbia Safety Authority, 2012

1

2012 ELECTRICAL CODE CHANGES Module 4   There have been numerous changes to the 2012 Canadian Electrical Code. The following material only describes changes which may be considered as major. For complete Code information, refer to the 2012 Canadian Electrical Code available at www.csa.ca. Please note: minor electrical code changes are not covered in this material.

Section 38 — Elevators, Dumbwaiters, Material Lifts, Escalators, Moving Walks, Lifts for Persons with Physical Disabilities, and Similar Equipment  

Rule 38-011 Insulation and types of conductors The wording in Subrules 1 and 4 have been revised to clarify to the user that selection of an approved wiring method must also include ensuring it is suitable for the intended location and application.

Rule 38-021 Wiring methods (see Appendix B) The wording in Subrules 1, 2, and 3 have been revised to clarify to the user that selection of an approved wiring method must also include ensuring it is suitable for the intended location and application. Copper sheathed cable is recognized as an approved wiring method subject to the listed restrictions.

Rule 38-091 (5) – Emergency power (see Appendix B) Elevating devices are sometimes supplied with additional power supplies (battery units) designed to control the operation of the elevator in the event normal power is lost. The revision to Rule 38-091 (5) is editorial in nature and has been made to more accurately describe the safety precautions required to protect maintenance personnel during adjustments and repairs.

©

British Columbia Safety Authority, 2012

2

Section 40 — Electric Cranes and Hoists Rule 40-000 Scope A revision to the scope of Section 40 has been made. Previous editions included a Subrule (2) which referenced CSA standard C22.2-No.33 and covered equipment and wiring of cranes, hoists, and monorails. Electrical equipment must bear evidence of approval and ongoing harmonization efforts may result in a new standard. Section 40 is intended to cover only the electrical installation wiring of cranes and hoists and the connection between the crane or hoist and the installation’s electrical services. The illustration below is from the 2009 CEC Handbook. It shows terms used throughout this Section e.g. supply conductors, main contact conductor (the stationary conductors supplying power to the movable collectors).

40-004 Conductor protection The revision to this rule recognizes “copper–sheathed cable” as an approved wiring method.

Section 44 — Theatre Installations The wording in Subrules 44-102, 44-350, and 44-354 is editorial in nature. It has been revised to clarify to the user that selection of an approved wiring method must also include ensuring it is suitable for the intended location and application. Copper sheathed cable is recognized as an approved wiring method.

©

British Columbia Safety Authority, 2012

3

Section 46 — Emergency Power Supply, Unit Equipment, Exit Signs, and Life Safety Systems Rule 46-108 (1) & (2) Wiring method (see Appendices B and G) The requirement to encase rigid PVC conduit in 50mm of concrete or masonry has been removed. Now an exposed run of Rigid PVC is an acceptable wiring method. Studies have shown that PVC provides at least an equivalent level of protection as EMT and similar wiring methods when exposed to a building fire. Where the BC Building Code requires fire protected feeders, concrete encasement or other acceptable certified means such as approved fire resistant cabling is common.

©

British Columbia Safety Authority, 2012

4

Rule 46-108 (3) Wiring method (see Appendices B and G) This revision is editorial in nature. It clarifies to the user that non-metallic sheathed cable and totally enclosed non-metallic raceway (ENT) are approved wiring methods in buildings of combustible construction. Wiring methods used in non-combustible construction are also acceptable when used in combustible construction.

Rule 46-202 Types of emergency power supply (see Appendix G) Subrule (3) (b) has been re-written, “to any transfer switch” replaced the wording “of the equipment” when referring to equipment which suffers a loss of power supply. Subrule (3) (c) required emergency generators in health care facilities to comply with Rule 24-306. The revision has removed this reference as it is redundant. Now Rule 46-202 (3) (c) requires the user to ensure the generator installation complies with the requirements of CAN/CSA-C282-09 Emergency electrical power supply for buildings.

Rule 46-204 Protection of electrical conductors (see Appendices B and G) The intent of this Rule is to protect conductors between an emergency generator and other emergency electrical equipment such as the transfer switch(es), by-pass switch(es), engine control panel, etc. required to be installed as a part of the emergency power supply and located outside the generator room against exposure to fire for a period not less than 1 h. The BC Building Code and Local Bylaws requires that conductors supplying life and fire safety equipment be protected against fire exposure. CAN/CSA-C282-09 also mandates protection of circuits interconnecting field installed equipment comprising an emergency generator against possible damage by fire. ©

British Columbia Safety Authority, 2012

5

The following App. B examples illustrate acceptable methods for achieving this protection: (a) Using mineral-insulated cables conforming to fire rating requirements as specified in Clause 5.3 of the CSA C22.2 No. 124, or other cables that conform with the ULC S139 circuit integrity test and are marked “ULC S139 2 hr fire rated” cables;

(b) Embedding the raceway containing conductors between an emergency generator and associated equipment in concrete with a thickness sufficient to provide protection of electrical conductors from fire exposure for a period of at least 1 h in compliance with the BC Building Code and Local Bylaws, or

Encasing conventional wiring methods in concrete is a traditional method for addressing fire protection. 50mm of concrete has historically been considered adequate for one-hour fire resistance and approximately 100mm are required to protect conductors for two hours. However, this is a general presumption and verification by a registered engineer or fire protection engineer is required to be made to the building inspector AHJ.

©

British Columbia Safety Authority, 2012

6

(c) Installing the raceway containing conductors between an emergency generator and associated equipment in a shaft enclosure or service space of at least 1 h fire resistance construction.

•

Specific requirements pertaining to the fire resistance rating of a material or an assembly of materials can be found in subsection 3.1.7 of the BC Building Code and Local Bylaws or in the appropriate provincial/territorial legislation.

•

Professional design and certification is required to be made to the building authority AHJ

©

British Columbia Safety Authority, 2012

7

Section 50 — Solar Photovoltaic Systems Section 50 applies to solar photovoltaic systems. The changes that have been made to this section have been made to address some of the following items: •

There are new photovoltaic processes, equipment and installation methods that needed to be addressed in the new code.

•

There have been some safety related incidents (fire and shock) that are being addressed in the new code to minimize future occurrences.

•

Some changes are being made to reduce the cost of many installations.

•

Minor changes have been made to align this section with the new section 64 which deals with renewable energy sources (solar photovoltaic systems are considered a renewable energy system).

•

To harmonize our requirements with the National Electrical Code in the US.

Rule 50-004 Marking (see Appendix B) Rule 50-004 has been revised. The 2009 CEC edition specified the “rated open-circuit voltage” which has been replaced in Item (b) with the “maximum photovoltaic source circuit voltage”.

Rule 50-006 Maximum photovoltaic source circuit and output circuit voltage (see Appendix B) Rule 50-006 has been expanded to provide another option in determining the maximum voltage a PV source may produce. This method is more complex but can provide more accurate voltage values resulting in cost savings through smaller conductor and equipment sizing.

©

British Columbia Safety Authority, 2012

8

Rule 50-008 Voltage drop Rule 50-008 is a new rule to Section 50 for voltage drop. This rule gives code users four options. •

Option one considers the installation acceptable where the conductors are sized at least 125% of the maximum available short-circuit current of the solar photovoltaic system.

•

Option two allows up to 5% voltage drop based on the operating voltage

•

Options three and four give the designers new methods to calculate acceptable voltage drop.

Rule 50-010 Ampere rating of photovoltaic source circuits Rule 50-010, now titled Ampere Rating of Photovoltaic Source Circuits, has been completely rewritten. In PV systems the fault current available is limited by the internal impedance of the individual modules which make up an array. The ampere rating of a PV source circuit is required so correctly sized circuit conductors can be determined. Note: the rating must not be less than 125% of the rated short circuit current of each PV source circuit.

©

British Columbia Safety Authority, 2012

9

Rule 50-012 Overcurrent protection for apparatus and conductors (see Appendix B) As with regular electrical systems, Rule 50-012 requires conductors and equipment to be protected by overcurrent devices in accordance with Section 14. However, due to the nature of PV systems, Subrule (1) relaxes the overcurrent protection requirement when the conductors supplied have an ampacity greater than the sum of the short circuit currents connected to the same power conditioning unit. When overcurrent protection is required, Subrules 2 and 3 require the rating to be in accordance with ampacity tables or as specified by the PV equipment manufacturer and grouped where practicable.

Rule 50-014 Photovoltaic dc arc-fault circuit protection Rule 50-014 is a new rule requiring dc arc-fault protection for photovoltaic systems with a voltage of 80 V or above when installed on or penetrating a building. This requirement is very similar to Section 690.11 of the National Electrical Code, and is reliant on the completion of a new standard for dc arc-fault protection and the availability of equipment. Protection may be in the form of a separate DC AFCI device or incorporated into other PV components. Rule 50-014 has been added to require DC arc-fault circuit interrupters as a result of safety concerns related to photovoltaic system fires. Unlike traditional electrical products, PV modules and wiring do not have an overall enclosure to contain arcs and fires resulting from component or system faults. PV installations are increasing everyday and are most often configured in high voltage series DC circuits to reduce voltage drop. High voltage DC arcs are difficult to extinguish while energized and PV systems need a mitigation means to protect from high voltage PV arcing faults.

Rule 50-016 Disconnecting means (see Appendix B) This revision is editorial only, the previous Rule specified “all” equipment.

Rule 50-018 Wiring method (see Appendix B) Rule 50-018 detailing acceptable wiring methods has increased to nine Subrules. Wiring methods recognized for the interconnection of panels within an array are extra-hard usage flexible cords, conductors approved as part of an approved panel, rubber based photovoltaic underground (RPVU) conductors, and rubber photovoltaic (RPV) conductors where installed in a raceway.

©

British Columbia Safety Authority, 2012

10

Rule 50-020 Attachment plugs and similar wiring devices (see Appendix B) Rule 50-020 now recognizes that attachment plugs may be used with cable, subject to listed restrictions. New Subrule (2) requires attachment plugs to require a tool when the circuit operates at over 30 volts and is readily accessible.

Rule 50-024 Interconnected system connection This rule has been totally revised, former Subrules (2) and (3) have been deleted.

Rule 50-026 Solar photovoltaic systems grounding Rule 50-026 contains new rules which direct users to Section 64 for the requirements for system grounding.

This illustration shows one of the methods of achieving bonding and grounding. Here a separate grounding conductor has been installed for the DC inverter circuits which is run to a common ground electrode supplied as part of the AC system.

Rule 50-028 Power conditioning unit Rule 50-028 contains new rules which direct users to Section 64 for the requirements for the installation of power conditioning units.

©

British Columbia Safety Authority, 2012

11

Section 54 — Community Antenna Distribution and Radio and Television Installations Rule 54-100 Conductors The revision to this Subrule is editorial in nature. It has been revised to clarify to the user that selection of an approved wiring method must also include ensuring it is suitable for the intended location and the intended application.

Section 56 — Optical Fiber Cables Rule 56-104 Approvals The revision to this Subrule is editorial in nature. It has been revised to clarify to the user that selection of an approved wiring method must also include ensuring it is suitable for the intended location and the intended application.

Section 60 — Electrical Communication Systems Rule 60-304 Insulation Wire and cable used for communication systems shall be of the approved types selected in accordance with Rule 4-008(1).

Rule 60-308 Separation from other conductors The revision to this Subrule is editorial in nature. They have been revised to clarify to the user that selection of an approved wiring method must also include ensuring it is suitable for the intended location and the intended application.

©

British Columbia Safety Authority, 2012

12

Section 62 — Fixed Electric Space and Surface Heating Systems Rule 62-102 Special terminology In this Section, the following definitions apply: Infrared Radiant Heater – A heating device that emits heat primarily by Infrared Radiation.

Infrared Radiant Heater of the Metal Sheath – Glowing Element Type – An infrared radiant heater utilizing a metal sheathed tubular heating element operating at a temperature high enough to become visibly glowing.

 

©

British Columbia Safety Authority, 2012

13

Rule 62-116 Demand factors for service conductors and feeders New Subrule (3) has been added to clarify the demand factor shall be 100% of the connected load when calculating the ampacity of service or feeder conductors in residential occupancies. Subrule (4) has been revised to clarify to the user that either or both Subrules (2) and (3) may be required to calculate the size of service to supply a combined load of heating and other equipment depending on the type of heating units installed. This clears up the wording of previous Codes. The net result is residential service or feeder calculations may combine both Subrule (2) and (3). For example, 100% of any electric furnace load and where a BB Heating Load is also installed 100% of the first 10kW and 75% of the balance.

Rule 62-130 Heating panel and heating panel sets The revision to this Subrule is editorial in nature. The revision is to clarify to the user that selection of an approved conductor must also include ensuring it is suitable for the intended location and application.

Rule 62-202 Temperature control This revision is no revision at all in British Columbia. CSA has adopted the BC Amendment as a national standard to define the location of thermostats in bathrooms and recognize that some bathroom designs are such that compliance with the 1m separation is not feasible.

Rule 62-208 Installation of central units New Subrule (3) requires a single disconnecting means to be installed for all furnace installations. The intent of this Rule is to provide a local, convenient and supervised disconnecting means when maintenance or repair is required to the furnace equipment.

Rule 62-226 Infrared Radiant Heaters of the Metal Sheath – Glowing Element Type (see Appendix B) (1) Ground fault protection shall be provided to de-energize all normally ungrounded conductors of fixed infrared radiant heaters of the metal sheath - glowing element type with a ground fault setting sufficient to allow normal operation of the heater. (2) Where multiple heaters are used on the same branch circuit, a single ground fault protection described in Subrule (1) shall be permitted to be used in the branch circuit.

©

British Columbia Safety Authority, 2012

14

Section 64 — Renewable Energy Systems Rule 64-000 Scope (see Appendix B) Section 64 does not apply to systems which are 30V or less and limited to 100VA.

Rule 64-002 Special terminology This section has 55 new terms and definitions

Rule 64-004 General The “General” Subrule applies to all renewable systems and uses common rules and requirements found throughout the Code for more common supply systems.

Rule 64-006 Conductors of different systems (see Appendix B) This Subrule requires separation between renewable energy and other different systems.

Rule 64-010 Overcurrent protection (see Appendix B) Rule 64-010 requires overcurrent protection of conductors in compliance with Section 14. Special requirements regarding multiple supplies, protection of transformers and specific DC approval of all components is noted. Circuit breakers must be specifically approved for DC use (e.g. Square D Type QO’s are approved to 48V DC).

Rule 64-014 Wiring methods Due to the nature of renewable energy systems, Rule 64-014 requires conductors run inside buildings to be run in metallic raceways, metal enclosures or metal armour.

Rule64-016 System grounding (see Appendix B) AC systems shall be grounded in accordance with Section 10 requirements and DC supply circuits shall be grounded if over 50V. Use of a common grounding conductor is acceptable and may be used for the bonding of DC and AC equipment as well.

Rule 64-020 Grounding electrodes and grounding conductors (see Appendix B) The following is an example of combined DC grounding conductor and AC equipment bonding conductor:

©

British Columbia Safety Authority, 2012

15

Rule 64-024 Marking Marking of all required components is very important to prevent accidental contact with energized equipment. Renewable energy supplies are usually “energized” at both ends of a supply and correct marking will assist in providing maximum awareness of the hazards.

Rule 64-030 Interconnected system connection A utility-interactive inverter or power conditioning unit must be approved and acceptable to the supply authority in accordance with Section 84. These units are generally more expensive but provide a sine wave output which is acceptable to BC Hydro. This is important as some devices such as AFCI’s and GFCI’s may not function correctly with a poor power source.

The output of a utility-interactive inverter or power conditioning unit shall be • connected to the line side of the service disconnecting means • specifically approved for the purpose and so marked • capable of detecting when the utility is down and not feed supply the side during this condition

The output of a utility-interactive inverter or power conditioning unit shall be permitted to be • connected to the load side of the service disconnecting means of another source(s) • in accordance with Section 84 and • at a dedicated circuit breaker or fusible disconnecting means

©

British Columbia Safety Authority, 2012

16

Rule 64-032 Loss of interactive system power (see Appendix B) The requirements of this Subrule (1) are: 1) having the equipment capable of detecting when Utility power has been de-energized and 2) having the utility-interactive equipment shut down and not supply power until Utility power has been restored is to provide protection from back feed on to a utilities' lines

Rule 64-104 Stand-alone systems (see Appendix B) The Code recognizes that these power supplies may be used in areas where Utility power is not yet available. General wiring practices would usually see a 100 A or 200 A service installed for future connection to the Utility grid. In this case the stand alone system may be smaller than the main consumer’s service but it must be at least large enough to supply the single largest utilization load on the premises. Where the inverter used supplies only 120 V, use of a 3 wire panel board is permitted provided the inverter output is equal to or less than the marked rating of the panel neutral buss, and there are no 3 wire branch circuits and so marked.

Rule 64-114 Utility-interactive point of connection Utility-interactive inverters may be connected on the line side of the consumer’s service disconnecting means or on the load side where additional precautions are required. These precautions are listed on the slide as a summary only and further reference within the Code is required to ensure a safe installation.

Section 66 — Amusement Parks, Midways, Carnivals, Film and TV Sets, TV Remote Broadcasting Locations, and Travelling Shows Rule 66-456 Single-conductor cable connections Subrule (4) has been added to reduce the shock hazard associated with the possibility that a Tee or similar fitting will pull out or break off when connected into a rigid fitting such as a distribution box or panel board. Item (c) requires strain relief such as Kellems grips to take the strain (weight) of the cable.

©

British Columbia Safety Authority, 2012

17

Section 68 — Pools, Tubs, and Spas 68-000 Scope (2) A pool shall be deemed to include (a) permanently installed and storable swimming pools; (b) hydromassage bathtubs; (c) spas and hot tubs; (d) wading pools; (e) baptismal pools; (f) decorative pools; and (g) splash pads.

68-050 Special terminology In this Section, the following definition applies: Splash pad — an area designed for water play that is not intended to have standing water.

Rule 68-068 Ground fault circuit interrupters (see Appendix B) Subrule (7) - This revision has been made to clarify to the user that all spas and hot tubs shall be GFCI protected. Previous wording around the location of pool equipment such as “within the confines of the pool walls” was subject to incorrect interpretation. CSA Part 2 Standards require Spas and Hot Tubs to be equipped with GFCI protection when factory built.

Rule 68-404 Controls and other electrical equipment (see Appendix B) This revision clarifies the wording around the purpose of the emergency shut-off switch. Previous Code editions had wording requiring the shut-off switch to be “equipped with audible and visual trouble-signal”. This revision now allows field wiring to obtain the desired results of “audible and visual trouble-signal actuation device”.

Section 70 — Electrical Requirements for Factory-Built Relocatable Structures and Non-Relocatable Structures Rule 70-108 Power supply cord or cord set This revision is to clarify to the user that selection of an approved wiring method must also include ensuring it is suitable for the intended location and application. ©

British Columbia Safety Authority, 2012

18

Rule 70-122 - Power supply cord or cord set (see Appendix B) This revision now provides for other types of GFCI protection where nuisance tripping may be an issue. The previous wording required a Class A GFCI.

Section 72 — Mobile home and recreational vehicle parks Rule 72-110 Connection facilities for recreational vehicles and mobile homes (see Appendix B) The reference to receptacle type NEMA Standard WD6, Figure TT receptacle (see Appendix B) has been removed. The dimensional standard for electrical connectors is ANSI/NEMA WD–6 and is an unnecessary reference as all Type TT -30R receptacles must comply.

Section 76 — Temporary wiring (see Appendix G) Rules 76-002 Conductors and 76-010 Feeders These revisions are to clarify to the user that selection of an approved wiring method must also include ensuring it is suitable for the intended location and application.

Section 78 — Marinas, yacht clubs, marine wharves, structures, and fishing harbours Rules 78-058 Wiring methods and 78-104 Wiring methods These revisions reference Rule 4-012(1) and clarify to the user that selection of an approved flexible wiring method must also include ensuring it is suitable for the intended location as well as application.

Section 80 — Cathodic protection Rule 80-008 Branch circuit The revision has removed Item (c) from the previous edition and replaced it with new Rule 80-010 Disconnecting means.

©

British Columbia Safety Authority, 2012

19

Rule 80-010 Disconnecting means Subrule (1) - This revision has enhanced safety to maintenance personnel by locating the disconnecting means within sight of and no more than 15m from the rectifier equipment. Subrule (2) & (3) – The disconnecting means required may be incorporated into the cathodic protection equipment provided the live parts are within a barriered compartment, the enclosure is lockable and the disconnecting means is clearly labelled.

Typical Cathodic Protection Rectifier Image courtesy of http://en.wikipedia.org/wiki/Cathodic_protection_rectifier

Section 82 — Closed-loop and pre-closed-loop power Rule 82-018 Cables and conductors The revision reference to Rule 4-008(1) clarifies to the user that selection of an approved flexible wiring method must also include ensuring it is suitable for the intended location as well as application.

©

British Columbia Safety Authority, 2012

20

Section 86 — Electric vehicle charging systems Rule 86-100 Special terminology Electric Vehicle Inlet - a conductive or inductive device that is permanently affixed to the electric vehicle into which the electric vehicle connector is inserted for charging and information exchange (see Appendix B).

Appendix B Notes on Rule 86-100 - Electric vehicle inlet For the purposes of this Code, the electric vehicle inlet is considered to be part of the electric vehicle and not part of the electric vehicle charging equipment.   

SAE J1772 is a North American standard for electrical connectors for electric vehicles maintained by the Society of Automotive Engineers and has the formal title "SAE Surface Vehicle Recommended Practice J1772, SAE Electric Vehicle Conductive Charge Coupler”. It covers the general physical, electrical, communication protocol, and performance requirements for the electric vehicle conductive charge system and coupler. The intent is to define a common electric vehicle conductive charging system architecture including operational requirements and the functional and dimensional requirements for the vehicle inlet and mating connector.

Rule 86-106 Permanently and cord connected equipment This new Subrule has been added to direct the User to the rules regarding the installation of permanent and cord connected electric vehicle charging equipment.

Rule 86-306 Receptacles for electric vehicle charging equipment (see Appendix B) The revision to Subrule (1)(a) now requires a single receptacle (not duplex) for the connection of charging equipment. New standards around charging, operation, ventilation and de-energization could inadvertently disconnect other equipment supplied from the other half of a duplex outlet.

©

British Columbia Safety Authority, 2012

21

Rule 86-308 Electric vehicle as electric power production source Subrules (1) & (2) - These new Subrules have been introduced to address issues surrounding the use of electric vehicles as power production sources or power storage devices. Originally thought of only as power loads to be supplied from Utility generated power supplies, new technology has emerged which sees EV’s as power production sources. Electric utilities could use battery vehicles as storage, or fuel cell and hybrid vehicles as generation. For example, even a currently-available electric vehicle, in a utility with medium value of peak power, could provide power at a net present cost to the vehicle owner of $955 and net present value to the utility of $2370. As an incentive to the vehicle owner, the utility might offer a vehicle purchase subsidy, lower electric rates, or purchase and maintenance of successive vehicle batteries. For a utility tapping vehicle power, the increased storage would provide system benefits such as reliability and lower costs, and would later facilitate large-scale integration of intermittent-renewable energy resources. Subrules (3) & (4) - These new Subrules address commercial locations where EV charging equipment may be done at a commercial level. To reduce the risk of an incident, the EV charging equipment must be located outside of any classified areas.

Rule 86-400 Indoor charging sites (see Appendix B) Subrule (2) - Where ventilation is required, the electric vehicle charging equipment shall be clearly marked by the manufacturer, “Ventilation Required.” The marking shall be located so as to be clearly visible after installation. Subrule (3) - More requirements regarding EV charging equipment are found in Rule 20114, under Subsection - Commercial Garages - Repair and storage. More information regarding EV’s and charging sites may be found at: www.bchydro.com/etc/medialib/internet/documents/environment/EVcharging_infrastructure_ guidelines09.Par.0001.File.EV%20Charging%20Infrastructure%20Guidelines-BC-Aug09.pdf

Rule 86-404 Height of electric vehicle charging equipment To be convenient and accessible, the Code provides minimum installation locations.

©

British Columbia Safety Authority, 2012

22

Tables Numerous changes have been made to the Tables as noted herein: Table 1  Removal of cable type references e.g. TW, RW90  Tables now list ampacities by corresponding temperature ratings  The User will determine the cable temperature and use the corresponding column to determine allowable ampacity  Ampacities of various sizes have been changed

Table 2  Table 2 notes  Removal of cable type references e.g. TW, RW90  Tables will list ampacities by corresponding temperature ratings  Ampacities of various sizes have been changed  Note the red asterisks, these are proposed BC Amendments New proposed BC Amendment as a footnote to Table 2: *** For 3-wire 120/240 V and 120/208 V service conductors for single dwellings, or for feeder conductors supplying single dwelling units of row housing of apartment and similar buildings, and sized in accordance with Rules 8-200(1), 8-200(2), and 8-202(1), the allowable ampacity for sizes No. 2 AWG and No. 2/0 AWG with 900 C insulation terminating on equipment having a maximum conductor termination temperature of 750 C shall be 125 A and 200 A, respectively (see Rule 4-006). In this case, the 5% adjustment of Rule 8-106(1) cannot be applied. This proposal was submitted and approved by ETAC for consideration as a BC Amendment. A similar amendment has been submitted to CSA for inclusion in the 2015 Code. It will bring back the copper service and feeder ampacities acceptable in the previous Code for single dwellings and dwelling units in apartment and similar buildings.

Table 3  Removal of Cable type references e.g. TW, RW90  Tables will list ampacities by corresponding temperature ratings  The User will determine the cable temperature and use the corresponding column to determine allowable ampacity  Ampacities of various sizes have been changed

©

British Columbia Safety Authority, 2012

23

Table 4  Table 4 notes  Removal of Cable type references e.g. TW, RW90  Tables will list ampacities by corresponding temperature ratings  Ampacities of various sizes have been changed  Note the red asterisks, these are proposed BC Amendments New proposed BC Amendment as a footnote to Table 4: *** For 3-wire 120/240 V and 120/208 V service conductors for single dwellings, or for feeder conductors supplying single dwelling units of row housing of apartment and similar buildings, and sized in accordance with Rules 8-200(1), 8-200(2), and 8-202(1), the allowable ampacity for sizes No. 6 AWG, 2 AWG, No. 1/0 AWG, No. 2/0 AWG, No. 4/0 AWG, and No. 700 kcmil with 900 C insulation terminating on equipment having a maximum conductor termination temperature of 750 C shall be 60 A, 100A, 125A, 150A, 200 A, and 400 A,, respectively (see Rule 4-006). In this case, the 5% adjustment of Rule 8-106(1) cannot be applied. This proposal was submitted and approved by ETAC for consideration as a BC Amendment. A similar amendment has been submitted to CSA for inclusion in the 2015 Code. It will bring back the copper service and feeder ampacities acceptable in the previous Code for single dwellings and dwelling units in apartment and similar buildings.

Table 5A  Delete entire Table 5A and replace with new Table 5A.

Table 5B  The title of this Table has been revised.  Previous editions read “and in contact”. This resulted in conflict between designers and AHJ’s regarding the application of the Rule.   Users of the Code will find this change now brings more installations under derating requirements

Table 6 Under Column 1 (Conductor Types), have been revised to include conductor types      ©

RPV90 RPV90 RPVU90 RPVU90 RPVU90

600 V 1000 V 600 V 1000 V 2000 V

with/ without jacket with/ without jacket without jacket with/ without jacket with/ without jacket

British Columbia Safety Authority, 2012

24

Table 10A and 10B  Renumber existing Table 10 as Table 10A  Add new Table 10B

Table 11  Reference note 7 has been changed  New reference note 15 has been added

Table 12  Changes have been made in many columns (see columns 3, 4, 8, 9, 10, and 11)  Previous cable types lumped in with other conductors have been given a separate column (see Type DRT – household dryer and range cable)  Ampacity values have been changed for some conductor types  Footnotes have changed and new notes have been added

Table 12A  The only change is the addition of the words “copper conductor”.

Table 12E  New table added to provide ampacity ratings when type DLO flexible cord is used in cable tray  See notes in Section 4 regarding construction and application of this cable type

Table 17  Table 17 has been deleted  This table was formerly used to determine the minimum size of a system ground wire for low voltage AC services  See Section 10 notes for further information

©

British Columbia Safety Authority, 2012

25

Table 19 The following cable types have been added to Table 19.  Type RC90 (copper sheathed cable)  Type ACG90 (armoured cable with ground wire)  Type ACGWU (aluminum sheathed cable with bare aluminum ground)  Type ACWU has an additional condition of use. It is now listed in “Exposed wiring where subjected to the weather”.  Changes have been made to Note 2, Note 9 and Note 10  Note 33 is new and describes the construction of Types ACG and ACGWU type cable  Note 34 is new and informs the User that Types RPV and RPVU are available in temperature ratings above 90 0C

Table 44  Table 44 has been revised  Full load current ratings for motors rated up to 500hp have been listed  Additional ratings for motors not previously listed have been provided  Revised full load current ratings have been given to several motor sizes in some voltage classes

Table 64  The previous version of Table 64 “Class I, Zone 1 space surrounding compressed natural gas (NGV) storage facilities” which classified areas has been deleted  A new Table 64 “Hazardous locations at NGV fuelling facilities” has been provided.  The new Table 64 incorporates locations, determines the extent of hazardous locations and provides the user with the classification (Zones) for these locations  Extensive footnotes and notes provide the User with information not found in earlier versions of the Code.

Table 66  Table 66 is new and provides the user with the allowable ampacity ratings for bare and covered conductors  Note CSA Errata dated February 6, 2012 as follows: Bare copper 750kcmil is 1000A  A “Covered Conductor” is defined as follows: “A conductor enclosed within a material of composition or thickness not defined as electrical insulation” (NEC Article 100 definition)  This type of conductor is not “touch-safe”  Typically this type of conductor is used in treed areas where there is an increased risk of incidental contact during storms or in back-alleys and similar spaces where clearances are restricted by building locations ©

British Columbia Safety Authority, 2012

26

Diagrams Diagram 1 Add receptacle Type TT-30R to Diagram 1. This receptacle is recognized for connection of RV’s, trailers and similar structures.

     

 

Example of TT-30R

This receptacle has been in use for many years. It is now formally recognized for the connection of RV’s, trailers and similar structures and has been included in Diagram 1.

©

British Columbia Safety Authority, 2012

27

Diagram 2 Add receptacle Types L24-20R to Diagram 2.

Example of L24-20R

©

British Columbia Safety Authority, 2012

28

Diagram 2 Add receptacle Type, ML2-15R to Diagram 2:

Example of Type ML2-15R

©

British Columbia Safety Authority, 2012

29

Diagram 2 Add receptacle Type SS1-50R and SS2-50R to Diagram 2

Hubbell Hbl503nm 50A 125V Shore Power Inlet

©

British Columbia Safety Authority, 2012

30

Appendix B Revisions In addition to the Code changes already discussed, there are 125 changes and revisions to / or new additions to Appendix B notes. Some notable sections are listed below which contain major new notes / changes.  Definitions - 5  Section 4 - 8  Section 10 - 6  Section 12 - 14  Section 18 - 14  Section 24 - 3  Section 26 - 10  Section 50 - 5  Section 64 - 47

©

British Columbia Safety Authority, 2012

31