Ontario Electrical Safety Code 25 th Edition/ 2012

Transcription

1 Ontario Electrical Safety Code 25 th Edition/ 2012 Ted Olechna Director, Codes and Standard Chief Engineer 1

2 What I Will Cover ESA s role is as the regulator Highlight of 2012 Code changes The Code and new Green technology Ontario differences 2

3 Electrical Safety Authority Bill 35, the Electricity Act, 1998 Section 113 (1) The Electrical Safety Authority, subject to the approval of the Lieutenant Governor in Council, may make regulations, - prescribing the design, construction, installation, protection, use, maintenance, repair, extension, alteration, connection and disconnection of all works and matters used or to be used in the generation, transmission, distribution, retail or use of Electricity in Ontario; Electrical For Your Safety Authority 2011 E-Tech marketing Forum

4 Electrical Safety Authority Mission and Vision Our Mission: To Improve electrical safety for the well being of the people of Ontario. Long Term Vision: An Ontario free of electrical fatalities and serious injury, damage or loss. Electrical For Your Safety Authority 2011 E-Tech marketing Forum

5 Regulations OESC is mandatory The OESC is passed into law by the Provincial Government Utility Regulations 2004 Contractor Licensing 2005 Product Safety 2007 Electrical For Your Safety Authority 2011 E-Tech marketing Forum

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7 CEC CODE changes OESC 2012 Major changes 273 proposals were submitted to the CSA 175 proposals 10 new interpretations are approved and in the new edition Ontario amendments 11* Ontario amendments are changed; plus Rule 2-005, An application for inspection not required is amended (to be finalized in Fall 2011) 7

8 Basic Exemption - proposed The following are the changes under consideration: Modify the existing Rule to include owner occupied dwelling unit when the work is performed by a licensed electrical contractor; New amendment to allow unit owners to replace certain light fixtures & switches within an Owner-Occupied Single Dwelling; New amendment to permit wiring from approved class 2 extra low voltage power supply within an Owner-Occupied Dwelling Unit; New amendment to allow the replacement or connection of specific listed appliances by specific trades, in accordance to their designation, within an owner-occupied dwelling; and New amendment to allow the repair of utilization equipment by specific trades, in accordance to their designation, within an owner-occupied dwelling. 8

9 General Cable Ampacity Tables 1 to 4 Temperature Limitations OESC 2012 Major changes Overcurrent protection for No. 14, 12 and 10AWG conductors Grounding conductor size for AC systems Cablebus installation Tamper resistant receptacles Receptacle(s) on a roof top for equipment maintenance Receptacles exposed to the weather 9

10 Green Energy Installations OESC 2012 Major changes Renewable energy systems New Section 64 Solar photovoltaic systems Section 50 changes Electric vehicle charging infrastructure 10

11 Electric Vehicle Charging Systems Code Sections 2,8,26 and 86 11

12 Ontario Amendment Appendix B note to Rule 2-000(h) New Appendix B note to Rule 2-000(h) For electrical vehicles; This Code applies to electrical vehicle supply equipment and requires it to be approved and installed in accordance with applicable Code requirements. This Code does not apply to the inlet or on-board charging equipment as defined by Rule that does not provide bidirectional power feed, as specified by Rule

13 Demand factors for EV equipment Rule 8-200(1)(a) and (3) When determining the minimum ampacity of service or feeders conductors supplying: a single dwelling, any electric vehicle charging equipment loads shall be considered with a demand factor of 100%. New Rule 8-200(1)(a)(vi) in apartment and similar building shall be added with a demand factor of 100% New Rule 8-202(3)(d) As required by the Building Code The electric vehicle charging equipment loads shall not exceed 80% of the rating of the overcurrent device, Rule 8-104(5). 13

14 Demand factors for EV equipment Rule 8-200(1)(a) and (3) Demand factors in a single dwelling A typical single family dwelling with 2000 ft² (186 m²) of living area: 14

15 Electric vehicle systems Rule Receptacles for charging equipment Amended Rule (1)(a) (1) Each receptacle for the purpose of electric vehicle charging shall be labeled in a conspicuous, legible, and permanent manner identifying it as an electric vehicle charging receptacle and shall be (a) a single receptacle of CSA configuration 5-20R supplied from a 125 V branch circuit rated not less than 20 A; or (b) of the appropriate CSA configuration in accordance with Diagram 1 or 2 when supplied from a branch circuit rated at more than 125V or more than 20 A. 15

16 Electric vehicle systems Rule (3) EV charging sites in commercial garages New Rule (3) (similar to new Rule (4)) Charging equipment installed in commercial garages or on premises of flammable liquid and gas dispensing and service facilities described in Section 20 shall comply with Rule and shall not be located in the hazardous area as described in Rule

17 Electric vehicle systems Rule Height of vehicle charging equipment New Rule The height of the electric vehicle charging equipment shall be located at a height of not less than 450mm and not more than 1.2m above the floor level. 17

18 Solar Photovoltaic installations Section 50 18

19 Agenda Changes/additions to existing Rules Marking PV source and output circuit voltage PV circuit current rating Overcurrent protection Wiring methods Attachment plug 19

20 Agenda New Rules and requirements: Voltage drop AFCI protection for DC circuits Grounding Inverter 20

21 Rule Photovoltaic dc arc-fault circuit protection It is the direction in Ontario that DC AFCI will not be required until May 1 st,

22 Rule Wiring methods (Amended) Newly developed Solar cables type RPV & RPVU in Part II Standard A new standard CSA C22.2 No. 271 (published May 2011), Photovoltaic Cables specifies the requirements for photovoltaic single-conductor and multiconductor thermoset-insulated wires and cables rated 600 V, 1000 V and 2000 V. The standard applies to conductors installed between solar panels and from solar panels to the inverter or combiner box or from combiner box to inverter. 22

23 Rule Wiring methods (Amended) Newly developed Solar cables type RPV & RPVU Part I Standard tables New cables type RPV and RPVU are also recognized in Tables 6, 10B and 19 23

24 Rule Attachment Plugs (Amended) Used to be , renumbered to fit. New Subrule (2) added to require the attachment plugs to be of a type that requires the use of a tool to open, when: Readily accessible; and Used in circuits operating at over 30V 24

25 Rule Power Conditioning Unit (New rule) Utility Interactive systems, Inverters approved for the purpose Connection to other sources Only inverters and AC modules approved and identified as interactive shall be permitted in interactive systems. This is existing direction in Ontario as per current Bulletin 84-1-* 25

26 Rule Power Conditioning Unit (New rule) Multiple 1-phase inverters form 3-phase interactive system Unbalanced interconnection 1) Single-phase inverters and AC modules in interactive renewable energy systems shall not be connected to 3-phase systems, unless the interconnected system: a) Is designed to provide balanced 3-phase output; b) Complies with Rules and ; and c) Complies with the supply authority requirements This is existing direction in Ontario as per current Bulletin 84-1-* 26

27 Renewable energy systems Code Sections 64

28 Special terminology Rule Renewable Energy. energy derived from resources that are naturally replenished, such as sunlight, wind, water, tides, and geothermal heat.

29 Rule Renewable Energy System a complete system enabling a renewable energy source to be connected to a utilization load. Special terminology.

30 Rule Special Terminology Small wind system. A system consisting of one or more wind turbines with a rated output up to and including 100 kw. Small wind systems

31 Rule Special Terminology a system consisting of one or more wind turbines with rated power output exceeding 100 KW rated power output. Large wind systems

32 Stationary Fuel Cell

33 MICRO-HYDROPOWER SYSTEMS 33

34 Hydrokinetic system a system operating as an interconnected or stand-alone system and consisting of one or more hydrokinetic turbines that convert the kinetic energy of flowing water into electrical energy with a rated output of up to and including100 kw.

35 STORAGE BATTERIES RULE

36 General Rule Overcurrent protection Where a circuit breaker is backfed ( LOAD to LINE rather than LINE to LOAD ) it shall be approved for the purpose. Circuit breakers labelled LINE and LOAD are not approved to be backfed.

37 General

38 General Rule Interconnections to other circuits Where the renewable energy system is not intended to be interconnected with the supply authority the system shall be designed so that it is impossible to have both systems connected at the same time.

39 General Rule Interconnected system connections (1) The output from a utility-interactive inverter or power conditioner shall be connected to the line side of the service disconnecting means in accordance with Section 84, except as permitted in Subrule (3).

40 General Rule Interconnected system connections Cont d

41 General Rule Systems in access of 750 V dc Where the maximum system voltage of a renewable energy source exceeds 750 V dc it shall comply with the requirements of Section 36 and any other requirements applicable to these installations.

42 Other Code changes 42

43 Receptacles General Tamper resistant requirements New Subrule (12) Tamper resistant receptacles now required in child care facilities

44 Receptacles General Receptacles exposed to weather Rule is amended to require 15A and 20A (125V and 240V) receptacles exposed to weather to be provided with cover plates suitable for wet locations that will provide shielding with and without a plug inserted into the receptacle.

45 Rule (1) & (2) Receptacles General Receptacles exposed to weather As per Rule (1) Requires to be marked Wet Location Only When Cover Closed As per Rule (2) Requires to be marked WET Locations whether or not a plug is inserted into it.

46 Installation of lighting equipment Circuit connections Amended Subrule (4) Fluorescent luminaire disconnect means. (4) The connection of branch circuit conductors exceeding 150 volts-to-ground to the conductors of each fluorescent luminaire utilizing double-ended lamps shall be made by one of the following ways;

47 Administrative Rule 2-022(3) Approval of LED luminaires New Rule 2-022(3)(c)(ii) Luminaires with LED lamps supplied from a class 2 powers supply are required to be approved. 47

48 Administrative Rule Approval of LED luminaries New Appendix B note to Rule 2-022(3)(c) Decorative light strings, signs or displays with LED lamps other than LED luminaries that are connected to approved class 2 power supplies are not required to be approved. 48

49 Wiring methods Rule (1) Use of rigid non-metallic conduit in fire alarm systems Amended Rule (1) Conductors of a fire alarm systems are now permitted to be installed in rigid nonmetallic conduit without being embedded in 50mm of masonry (as per current ESA Bulletin 32-3-*) 49

50 Wiring methods Rule (1) Use of rigid non-metallic conduit in life safety systems Amended Rule (1) Conductors described in Rule (Life Safety, Emergency etc.) are now permitted to be installed in rigid non-metallic conduit without being embedded in 50mm of masonry (as per current ESA Bulletin 46-4-*). 50

51 New Cable types in Tables 11, 12 and 19 Table 19, Armoured cable types ACG & ACGWU ACG90 a 14 AWG to 6 AWG multi-conductor aluminum interlocked armoured cable with aluminum bonding conductor in intimate contact with armour designed for applications permitting the use of the armour as a means of equipment bonding. ACGWU90 Same construction as the ACG90 with the addition of the overall jacket.

52 New Cable types in Tables 11, 12 and 19 Table 19, Cable Type ACG & ACGWU The construction of ACG & ACGWU cables incorporates a full size aluminum bond conductor in direct intimate contact with the interlocked armour.