British Columbia Safety Authority CONSULTATION MEETING: Adoption of the 2015 edition of the Canadian Electrical Code April 29, 2015 (10:00am-11:30am) Safe technical systems. Everywhere. Teleconference: 1-866-643-2939 4442830#
Welcome! On the call today: • Ted Gilbert, Electrical Safety Officer (presenter) • Doug Kelly, Senior Policy Analyst • Meryl Howell-Fellows, Stakeholder Engagement Programs Coordinator British Columbia Safety Authority
Agenda Introduction (10 min) 1. Presented by Meryl Howell-Fellows 2. Major code changes (25 min) Presented by Ted Gilbert Feedback, questions & answers (15 min) 3. Proposed BC amendments (15 min) 4. Presented by Ted Gilbert 5. Feedback, questions & answers (25 min) British Columbia Safety Authority
Introduction How to enter the teleconference: • Call toll-free 1-866-643-2939 • Enter the teleconference ID 4442830# • Mute your phone line ** Please mute your phone line during the presentation sessions. There will be time at the end of each presentation for questions and answers. British Columbia Safety Authority
Introduction How to use the webinar: • Go to www.gotomeeting.com. Click Join a Meeting, and enter 255-291-845 OR • Go to https://global.gotomeeting.com/join/255291845 • If you can see this, you’re already logged in! British Columbia Safety Authority
Introduction Why are we here today? • The feedback process • What will the feedback go towards? BC amendments are for: • Consistency with provisions of the Safety Standards Act ; • Improvements to electrical safety; and, • Clarification of ambiguous language which might create inconsistency and confusion by the Code users. British Columbia Safety Authority
British Columbia Safety Authority 2015 CANADIAN ELECTRICAL CODE • Numerous Editorial Changes • Approximately 65 minor changes • Approximately 35 significant changes • 27 new Tables • Table 6 conductors in raceways expanded • Table 9 cross sectional areas of raceways expanded
Section 2, General Rules 2-104 (1) Electrical equipment ratings (1) All electrical equipment marked with a short-circuit current rating or withstand rating shall have ratings sufficient for the voltage employed and for the fault current that is available at the terminals. • ETAC has made a recommendation that a BC Amendment be adopted to delete this Rule as it is unenforceable • Discussion and review later in presentation British Columbia Safety Authority
Section 4 4-004 Ampacity of wires and cables (see Appendix B) (23) Notwithstanding Rule 4-006, 3-wire 120/240 V and 120/208 V service conductors for single dwellings and feeder conductors supplying single dwelling units of row housing of apartment and similar buildings and terminating on equipment having a conductor termination temperature of not less than 75 ° C shall be permitted to be sized in accordance with Table 39. British Columbia Safety Authority
4- 004 (23) Ampacity of wires and cables (cont’d) British Columbia Safety Authority
4- 004 (23) Ampacity of wires and cables (cont’d) • New method for determining service conductor sizing for single dwellings and feeder sizing for single dwelling units. • Calculated load required before T39 can be used to select minimum conductor size. • 5% rule already taken into account. • Resolves conductor ampacity issues created by the 2012 edition of the CEC • No BC amendment required British Columbia Safety Authority
Section 8 8-102 Voltage drop (see Appendices B and D) (1) The voltage drop in an installation shall be based on the connected load of the feeder or branch circuit if known; otherwise it shall be based on 80% of the rating of the overload or overcurrent device protecting the branch circuit or feeder, and not exceed (a) 3% in a feeder or branch circuit; and (b) 5% from the supply side of the consumer’s service (or equivalent) to the point of utilization. (2) Notwithstanding Subrule (1), where overcurrent devices are selected in accordance with other Sections of this Code, the voltage drop shall be based on the calculated demand load of the feeder or branch circuit. British Columbia Safety Authority
8- 102 Voltage drop (cont’d) (3) Notwithstanding Subrule (1), wiring for general- use branch circuits rated at not more than 120 V or 20 A in dwelling units, with the conductor length measured from the supply side of the consumer’s service to the furthest point of utilization in accordance with the values in Table 68, shall be acceptable. British Columbia Safety Authority
Section 8 Appendix B Notes to Rule 8-102 (3) This Rule is not intended to apply to branch circuits for the following: (a) household appliances (e.g., refrigerators, washing machines, central vacuum systems, and other receptacles as per Rule 26-722); (b) kitchen counter receptacles Rule 26-724 (b) and dining room receptacle c/w gas range receptacle Rule 26-724 (e); (c) electrical heating and cooking appliances (Rule 26-744); and (d) other specific receptacles installed in dwellings, such as those dedicated for medical devices. • These branch circuits must still meet Subrule (1) requirements! British Columbia Safety Authority
8- 102 Voltage drop (cont’d) (4) Notwithstanding Subrule (1), at industrial establishments where conditions of maintenance and supervision ensure use by qualified persons, the design shall ensure that the voltage at the point of utilization is within the rating or voltage tolerance of the connected device(s). British Columbia Safety Authority
Section 8 8-106 Use of demand factors (see Appendix B) New Subrule (6) (6) Where a feeder or service supplies motor or air-conditioning loads, a demand factor as determined by a qualified person shall be permitted to be applied to these loads, provided that a deviation has been allowed in accordance with Rule 2-030. British Columbia Safety Authority
Section 8 8-106 Use of demand factors (see Appendix B) New Subrule (10) (10) For loads other than those calculated in accordance with Rules 8-200 and 8-202, feeder and service load calculations shall be permitted to be based on demonstrated loads, provided that such calculations are performed by a qualified person, as determined by the regulatory authority having jurisdiction. • ETAC has requested the BCSA develop a Bulletin describing the experience and credentials required to be recognized as “qualified” British Columbia Safety Authority
Section 10 Rule 10-802 Material for grounding conductors (see Appendix B) (1) The grounding conductor shall be permitted to be insulated or bare and shall be of copper, aluminum, or other acceptable material. (2) The material for grounding conductors shall be resistant to any corrosive condition existing at the installation or shall be protected against corrosion. • BC Amendment proposed (later in this presentation) British Columbia Safety Authority
Section 18 18-004 Classification of hazardous locations (see Appendices B, J, and L) Hazardous locations shall be classified according to the nature of the hazard, as follows: (a) explosive gas atmospheres; or (b) explosive dust atmospheres. • Introduction of Zone 20 locations • Harmonization with International IEC standards • Equipment with equivalent protection schemes accepted • Similar to adoption of IEC standards for hazardous gas installations in 2002 British Columbia Safety Authority
Section 26 26-724 Branch circuits for dwelling units (see Appendix B) (f) each branch circuit supplying 125 V receptacles rated 20 A or less shall be protected by a combination-type arc-fault circuit interrupter, except for branch circuits supplying (i) receptacles installed in accordance with (A) Rule 26-710(f); or (B) Rule 26-712(d)((i), (iii), (iv), and (v); and (ii) a single receptacle for a sump pump British Columbia Safety Authority
Section 26 26-724 Branch circuits for dwelling units (see Appendix B) (g) notwithstanding Item (f), the entire branch circuit need not be provided with arc-fault protection where (i) an outlet branch-circuit-type arc-fault circuit interrupter is installed at the first outlet on the branch circuit; and (ii) the wiring method for the portion of the branch circuit between the branch circuit overcurrent device and the first outlet consists of metal raceway, armoured cable, or non-metallic conduit or tubing. British Columbia Safety Authority
Section 26 26-724 Branch circuits for dwelling units (see Appendix B) Will not apply to circuits supplying: • Bathroom and washroom receptacles (dedicated ccts only) • Refrigerators • Kitchen counter receptacles, kitchen island receptacles, peninsula counter receptacles • Single receptacle for sump pump (with restrictions) British Columbia Safety Authority
Section 26 Arc fault circuit protection for new branch circuit wiring in new construction and existing dwelling units as per Rule 26-724 Rationale: • Expands the use of arc fault circuit interrupters to other areas of a residence where portable electrical appliances and equipment are regularly used • According to Canadian fire statistics, AFCI devices have reduced the number of fatal residential fires British Columbia Safety Authority
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