Alberta Municipal Affairs

Transcription

1 Alberta Municipal Affairs Clarence C. Cormier, P.Eng. Chief Electrical Inspector Bob Hall, SCO Electrical Technical Advisor Codes & Standards Section, M&E (Director Harry Li) Safety Services Branch (Executive Director Alex Morrison) Public Safety Division (Assistant Deputy Minister - Bruce McDonald) Alberta Municipal Affairs (Deputy Minister - Brad Pickering) (Elected Minister Deron Bilous) Government of Alberta (Elected Premier - Rachel Notley) SAFETY CODES COUNCIL CONFERENCE & AGM 2015 The Rimrock Resort Hotel 300 Mountain Avenue, Banff, Alberta, Canada T1L 1J2 1

2 Alberta Electrical Code Highlights Canadian Electrical Code 2015 Code for Electrical Installations at Oil & Gas Facilities Alberta Electric Utility Code AMA Update (Sneak in if time permits!) 2

3 CE Code Highlights Taken from the CE Code 2015 Preface: General - The term injury has been replaced with damage throughout the Code; Section 4 now contains requirements for high-voltage cable ampacities and clarified Rules for conductor termination temperature. In addition, a new table (Table 39) simplifies residential service and feeder conductor selection (currently Table 5E!); Section 8 - More options are provided for load and voltage drop calculations; Section 10 - Bonding conductor selection has been clarified through the addition of the new Tables 16A and 16B; Section 12 contains many new and revised requirements for wiring methods, and the conduit fill tables have been expanded; Section 18 has undergone major revisions. Requirements for Class II and Class III locations have been relocated to Appendix J, and requirements for explosive dust atmospheres based on IEC Zone 20, Zone 21, and Zone 22 have been added; Section 26 - Requirements for arc-fault protection have been expanded and clarified; Section 50 has been merged with Section 64; and Section 62 has been completely rewritten. Now we will consider the above in a little bit more detail. 3

4 CE Code 2015 Section 4 Section 4 Conductors Ampacity of wires and cables (see Appendix B) (1) The maximum current that a copper conductor of a given size and insulation is permitted to carry shall be as follows: (d) single-conductor and 2-, 3-, and 4-conductor cables and singleconductor and 2-, 3-, and 4-conductor metal-armoured and metalsheathed cables, unshielded and rated not more than 5 kv, in conductor sizes No. 1/0 AWG and larger, installed in accordance with configurations described in Diagrams D8 to D11 in an underground run, directly buried or in a raceway, as specified in Tables D8A to D11B or as calculated by the IEEE 835 calculation method; (g) shielded cables rated 5 kv to 46 kv in sizes No. 2 AWG to 1000 kcmil, as specified in Tables D17A to D17N for the configurations described therein and the conditions described in Table D17, or as calculated by the IEEE 835 calculation method. 4

5 CE Code 2015 Section Temperature limitations (see Appendix B) (1) Where equipment is marked with a maximum conductor termination temperature, the minimum size of conductor used shall be based on the allowable ampacity in the temperature column in Table 1, 2, 3, or 4, with all relevant correction factors being applied as required by Rule 4-004, corresponding to the maximum termination temperature marked on the equipment. (2) For the purpose of Subrule (1), and except as provided for by other Rules of this Code, where the maximum conductor termination temperature for equipment is not marked, the maximum conductor termination temperature shall be considered to be (a) 60 C for equipment (i) rated not more than 100 A; or (ii) marked for use with No. 1 AWG or smaller conductors; and (b) 75 C for equipment (i) rated more than 100 A; or (ii) marked for use with conductors larger than No. 1 AWG. (3) Notwithstanding Subrule (2), for high-voltage equipment where conductor termination temperatures are not marked, it shall be permitted to consult the manufacturer to establish the permitted termination temperature. (4) Subrules (1) and (2) shall apply only to the first 1.2 m of conductor length measured from the point of termination on the equipment. (5) Where a cable transition is made to meet the requirements of Subrule (1) or (2), the length of a conductor terminating on equipment shall be not less than 1.2 m. (6) Where the conductor ampacity is selected from Tables D8A to D11B or from Table 12E, Subrules (1) and (2) shall apply. 5

6 CE Code 2015 Section 4 6

7 CE Code 2015 Section 8 Section 8 Circuit loading and demand factors Special terminology (see Appendix B) Basic load the load of lighting and receptacle circuits, based on the outside dimensions of a specific area of building occupancy, as listed in Table 14. Calculated load the load calculated in accordance with the applicable requirements of this Section. Demonstrated load historical maximum demand watt information recorded over at least a 24-month period for the same type of facility as the one in question, equated to watts per m2. 7

8 CE Code 2015 Section 8 8

9 CE Code 2015 Section 10 Section 10 Grounding and bonding Table 16 (Note: This Table has been deleted.) Table 17 (Note: This Table has been deleted.) Table 18 (Note: This Table has been deleted.) 9

10 CE Code 2015 Section 10 10

11 CE Code 2015 Section 10 11

12 CE Code 2015 Section 12 Section 12 Wiring methods Non-metallic-sheathed cable Running of cable between boxes and fittings Protection for cable in concealed installations Armoured cable Terminating armoured cable Mineral-insulated cable, aluminum-sheathed cable, and copper-sheathed cable Method of supporting Raceways General Conductors in raceways Conductors in conduit and tubing Rigid and flexible metal conduit Maximum spacing of conduit supports Conductors in conduit Rigid PVC conduit Split straight conduit Rigid Types EB1 and DB2/ES2 PVC conduit Maximum number of conductors 12

13 CE Code 2015 Section Scope Use Conduit supports Rigid RTRC conduit Maximum number of conductors Liquid-tight flexible conduit Use of liquid-tight flexible metal and non-metallic conduit Maximum number of conductors Supports Use Restrictions on use Electrical metallic tubing Maximum number of conductors Connections and couplings Provision for bonding continuity 13

14 CE Code 2015 Section 12 Electrical non-metallic tubing Supports Maximum number of conductors Cellular floors Provision for bonding Cable trays Method of installation Provisions for bonding Use of cablebus Cablebus Installations of boxes, cabinets, outlets, and terminal fittings Outlet boxes Outlet box covers Outlet boxes, cabinets, and fittings 14

15 CE Code 2015 Section 12 CE Code

16 CE Code 2015 Section 12 Table 6 (Note: This Table has been deleted.) Table 6A Maximum number of 600 V thermoset conductors without a jacket, Types R90XLPE, RW75XLPE, RW90XLPE, and RPV90, of one size in trade sizes of conduit or tubing Table 6B Maximum number of 1000 V thermoset conductors without a jacket, Types R90XPLE, RW75XLPE, RW90XLPE, and RPV90, of one size in trade sizes of conduit or tubing Table 6C Maximum number of 600 V thermoset conductors with a jacket, Types R90XPLE, RW75XLPE, RW90XLPE, R90EP, RW9075EP, RW90EP, and RPV90, of one size in trade sizes of conduit or tubing Table 6D Maximum number of underground conductors, Types RWU90XLPE, TWU, and TWU75, of one size in trade sizes of conduit or tubing Table 6E Maximum number of 1000 V and 2000 V thermoset conductors without a jacket, Type RPVU90, of one size in trade sizes of conduit or tubing 16

17 CE Code 2015 Section 12 Table 6F Maximum number of 1000 V and 2000 V thermoset conductors with a jacket, Type RPVU90, of one size in trade sizes of conduit or tubing Table 6G Maximum number of 2000 V thermoset conductors without a jacket, Type RPV90, of one size in trade sizes of conduit or tubing Table 6H Maximum number of 1000 V thermoset conductors with a jacket, Type RPV90, of one size in trade sizes of conduit or tubing Table 6I Maximum number of 2000 V thermoset conductors with a jacket, Type RPV90, of one size in trade sizes of conduit or tubing Table 6J Maximum number of thermoplastic conductors, Types TW and TW75, of one size in trade sizes of conduit or tubing Table 6K Maximum number of thermoplastic conductors, Types TWN75 and T90 NYLON, of one size in trade sizes of conduit or tubing 17

18 CE Code 2015 Section 18 Section 18 Hazardous locations Scope and introduction Scope (see Appendices B, F, and J) (1) This Section applies to locations in which electrical equipment and wiring are subject to the conditions indicated by the following classifications. (2) This Section supplements or amends the general requirements of this Code. (3) For additions, modifications, renovations to, or operation and maintenance of existing facilities employing the Division system of classification, the continued use of the Division system of classification shall be permitted. (4) Where the Division system of classification is used as permitted by Subrule (3), the Rules for Class I, II, and III locations found in Annex J18 of Appendix J shall apply 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 Locations containing an explosive gas atmosphere (see Appendix B) Explosive gas atmospheres shall be divided into Zones 0, 1, and 2 based upon frequency of occurrence and duration of an explosive gas atmosphere Locations containing an explosive dust atmosphere (see Appendix B) Explosive dust atmospheres shall be divided into Zones 20, 21, and 22 based upon frequency of occurrence and duration of an explosive dust atmosphere. 18

19 CE Code 2015 Section 18 Section 18 Hazardous locations Zone 0 a location in which explosive gas atmospheres are present continuously or are present for long periods. Zone 1 a location in which (a) explosive gas atmospheres are likely to occur in normal operation; or (b) the location is adjacent to a Zone 0 location, from which explosive gas atmospheres could be communicated. Zone 2 a location in which (a) explosive gas atmospheres are not likely to occur in normal operation and, if they do occur, they will exist for a short time only; or (b) the location is adjacent to a Zone 1 location, from which explosive gas atmospheres could be communicated, unless such communication is prevented by adequate positive-pressure ventilation from a source of clean air, and effective safeguards against ventilation failure are provided. Zone 20 a location in which an explosive dust atmosphere, in the form of a cloud of dust in air, is present continuously, or for long periods, or frequently. Zone 21 a location in which an explosive dust atmosphere, in the form of a cloud of dust in air, is likely to occur in normal operation occasionally. Zone 22 location in which an explosive dust atmosphere, in the form of a cloud of dust in air, is not likely to occur in normal operation but, if it does occur, will persist for a short period only. 19

20 CE Code 2015 Section 26 Section 26 Installation of electrical equipment Receptacles General (see Appendix B) (12) All receptacles of CSA configuration 5-15R and 5-20R installed in a child care facility shall be tamperresistant receptacles and shall be so marked. (13) Notwithstanding Subrule (12), receptacles dedicated for stationary appliances such that the receptacle is rendered inaccessible or those located 2 m from the floor or finished grade shall not be required to be tamper resistant Receptacles exposed to the weather (see Appendix B) (1) Receptacles exposed to the weather shall be provided with wet location cover plates. (2) Receptacles of CSA configurations 5-15R, 5-20R, 5-20RA, 6-15R, 6-20R, and 6-20RA shall be provided with cover plates suitable for wet locations, whether or not a plug is inserted into the receptacle, and marked Extra Duty. (3) Notwithstanding Subrules (1) and (2), cover plates marked Wet Location Only When Cover Closed, or the equivalent, shall be permitted for receptacles (a) installed facing downward at an angle of 45 or less from the horizontal; or (b) located at least 1 m above finished grade and not in a wet location Receptacles for dwelling units (see Appendices B and G) (a) except as otherwise provided for in this Code, in dwelling units duplex receptacles shall be installed in the finished walls of every room or area, other than bathrooms, hallways, laundry rooms, water closet rooms, utility rooms, or closets, so that no point along the floor line of any usable wall space is more than 1.8 m horizontally from a receptacle in that or an adjoining space, such distance being measured along the floor line of the wall spaces involved; (d) in dwelling units there shall be installed in each kitchen (vi) a sufficient number of duplex receptacles installed on the remaining finished walls in accordance with Item (a); 20

21 CE Code 2015 Section 26 Section 26 Installation of electrical equipment Branch circuits for residential occupancies Special terminology In this Subsection, the following definitions apply: Arc-fault protection a means of recognizing characteristics unique to both series and parallel arc-faults and de-energizing the circuit when an arc-fault is detected. Combination-type arc-fault circuit interrupter a device that provides both series and parallel arc-fault protection to the entire branch circuit wiring, including cord sets and power supply cords connected to the outlets, against the unwanted effects of arcing. Outlet branch-circuit-type arc-fault circuit interrupter a device that provides both series and parallel arc-fault protection to downstream branch circuit wiring, cord sets, and power supply cords against the unwanted effects of arcing and also provides series arcfault protection to upstream branch circuit wiring. 21

22 CE Code 2015 Section 26 Section 26 Installation of electrical equipment Branch circuits for residential occupancies (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 (f); or (B) Rule (d)((i), (iii), (iv), and (v); and (ii) a single receptacle for a sump pump where (A) the receptacle is labelled in a conspicuous, legible, and permanent manner identifying it as a sump pump receptacle; and (B) the branch circuit does not supply any other receptacles; and (g) notwithstanding Item (f), the entire branch circuit need not be provided with arcfault 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. 22

23 CE Code 2015 Section Submersible pumps installed in bodies of water (1) Submersible pumps installed in bodies of water shall comply with the following: (a) the voltage supplying the submersible pump shall not exceed 150 volts-to-ground; (b) the pump motor shall be bonded to ground by a conductor that (i) is sized in accordance with Rule ; (ii) is integral with the supply cable, or within the same protective enclosure as the power supply conductors if single conductors are used; (iii) has the same type of insulation as the supply conductors; and (iv) terminates adjacent to the location where the branch circuit conductors receive their supply; (c) the wiring method to the pump shall be (i) Type RWU75, RWU90, TWU, or TWU75 or equivalent single conductor or twisted assemblies of these types, suitable for handling at 40 C, enclosed in a plastic water pipe or in rigid PVC conduit; or (ii) Type SOW, G, G-GC, W, or the equivalent portable power cable; (d) ground fault protection shall be provided to de-energize all normally ungrounded conductors supplying the submersible pump with a ground fault current trip setting adjusted to function as low as practicable to permit normal operations of the pump, but in no case shall the ground fault current setting be greater than 10 ma for an operating time period not exceeding 2.7 s; and (e) the supply conductors or cables shall be run from an outdoor connection facility, above or below ground, to the main distribution panelboard in accordance with the requirements of Section 12. (2) Notwithstanding Item (1)(a), submersible pumps installed in bodies of water shall be permitted to operate at voltages exceeding 150 volts-to-ground where (a) a deviation has been allowed in accordance with Rule 2-030; (b) the operating voltage does not exceed 5.5 kv; (c) the electrical installation is maintained by qualified electrical maintenance staff; and (d) the area around the submersible pump is protected from access by the public by fencing, cribbing, or isolation and so marked. 23

24 CE Code 2015 Sections 50 & Section 50 Solar photovoltaic systems 2015 Section 50 Note: This Section has been deleted. Section 64 Renewable energy systems Inverters Solar photovoltaic systems Small wind systems Large wind systems Micro-hydropower systems Hydrokinetic power systems Stationary fuel cell systems Storage batteries 24

25 CE Code 2015 Section 62 Section 62 Fixed electric heating systems Scope Scope (see Appendix B) (1) This Section applies to (a) fixed electric space-heating systems for heating rooms and similar areas; (b) fixed surface heating systems; and (c) fixed electric heating systems not covered by Item (a) or (b). E.g. Bare element water heater a self-contained, factory-assembled water heater that heats water by direct contact with the uninsulated heating element wire. (2) The requirements of this Section supplement or amend the general requirements of this Code. 25

26 2015 Oil & Gas Code Code for Electrical Installations at Oil & Gas Facilities Planned Adoption September 1, Will be available at the Queen s Printer. Rene Leduc is Chair of O&G Code WG. Reports to the ETC. Last meeting was 2014/04/11. 4 column change document available upon request. 26

27 Alberta Electric Utility Code 2013 Adopted October 1, Available at the Queen s Printer. Only one STANDATA VAR-EUC-Scope [rev-1]. Jim Porth is Chair of the AEUC WG. Reports to ETC. Last meeting was 2015/3/18. Unlike the O&G code, the AEUC working group has decided not to follow the Canadian Electrical code cycle. Instead, they will be following the CSA O/H and U/G standards cycle (CE Code, Part III). Next publication planned for

28 AMA Electrical Update What s new in 2015? 28

29 Agenda 1. Electrical Staff 2. Committee Participation 3. Codes & Standards 4. STANDATA 5. Advisories 6. Forms & Reports

30 Electrical Staff 1. Chief Electrical Inspector Clarence Cormier, Codes & Standards (Edmonton) 2. Electrical Technical Advisor Bob Hall, Codes & Standards (Edmonton) 3. Senior Electrical Inspector Brian McIntosh, Field Services (Grand Prairie) 4. Electrical Inspector Kevin Glubrecht, Field Services (Red Deer) 5. Electrical Inspector David Phillips, Field Services (Edmonton) 6. Electrical Inspector Ben Chan, Field Services (Calgary) 7. Electrical Inspector Steve Eagles, Partnership Support (Red Deer)

31 Committee Participation ALBERTA ELECTRICAL TECHNICAL COUNCIL AND 3 OF ITS 4 WORKING GROUPS: CANADIAN ELECTRICAL CODE WORKING GROUP ELECTRICAL UTILITY CODE WORKING GROUP OIL & GAS CODE WORKING GROUP CSA TC CANADIAN ELECTRICAL CODE (CE CODE), PART 1 TC WIND TURBINES TC INDUSTRIAL PRODUCTS (TCIP) TSC INTEGRATED COMMITTEE ON HAZARDOUS LOCATIONS (ICHL) OBJECTIVE BASED INDUSTRIAL ELECTRICAL CODE (OBIEC) CE CODE, PART 4 ELECTRICAL PRODUCT SAFETY - HEALTH CANADA UL UL ELECTRICAL COUNCIL UL STP COMMITTEE FOR MULTIOUTLET AND PREFABRICATED WIRING ASSEMBLIES UL STP ENERGY STORAGE SYSTEMS AND EQUIPMENT ULC ADVISORY COUNCIL ULC STANDARDS COMMITTEE ON LIVE WORKING (S400A) UL-ULC 1088 TC Standard for Temporary Lighting Strings

32 Codes & Standards Presently the Canadian Electrical Code, Part 1 (twenty-second edition), Canadian Standards Association standard C , 2015 adoption-enforcement planned for September 1; Presently the Code for Electrical Installations at Oil and Gas Facilities, 4th Edition, 2013, published by the Safety Codes Council, 2015 adoption-enforcement planned for September 1; Presently the Alberta Electrical Utility Code, 4th Edition, 2013, published by the Safety Codes Council, adoptionenforcement planned for 2016/2017 to more closely follow the CSA O/H & U/G standards.

33 STANDATA STANDATA reissued in 2014: INTRODUCTION MARCH 2014 Safety Codes Act (Interpretations) Reporting of Electrical Incidents/Accidents Electrical Code Regulation (Interpretations) Section 2 - Electrical Systems Equipment Canadian Electrical Code STANDATA (Interpretations) Errata Section 2 General Rules Section 4 Conductors Section 10 Grounding and Bonding Section 12 Wiring Methods Section 18 Hazardous Locations Section 22-Locations in Which Corrosive Liquids or Vapours or Excessive Moisture are Likely to be Present Section 26 - Installation of Electrical Equipment Section 30 - Installation of Lighting Equipment Section 32 - Fire Alarm Systems, Fire Pumps and Carbon Monoxide Alarms Variances STANDATA Canadian Electrical Code Rule RE: Oil and Gas Industry Electrical Submersible Pumps Rule RE: Liquid-filled Transformers

34 Advisories New link: ULC Advisory - Fire Resistive, Fire Resistant and Circuit Integrity Cables Otherwise No Change.

35 Forms & Reports Electrical Incident Statistics Report forthcoming March, 2015.

36 Questions? Clarence C. Cormier, P.Eng. Chief Electrical Inspector, Codes & Standards Section Safety Services Branch, Public Safety Division 16th Floor, Commerce Place, Street NW, Edmonton, AB, T5J 4L4 Phone: Fax: Cell: