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Catching up with 2014 NC Electrical Code Updates from

Catching up with 2014 NC Electrical Code Updates from. UTILITY TRANSFORMER POLICY http://charmeck.org/mecklenburg/county/LUESA/CodeEnforcement/Inspections/trades/Electrical/Pages/Outdoor%20Utility%20Transformer.aspx. The 2014 NC Electrical Code went into effect on April 1 st , 2016 .

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Catching up with 2014 NC Electrical Code Updates from

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  1. Catching up with 2014 NC Electrical Code Updates from

  2. UTILITY TRANSFORMER POLICY http://charmeck.org/mecklenburg/county/LUESA/CodeEnforcement/Inspections/trades/Electrical/Pages/Outdoor%20Utility%20Transformer.aspx

  3. The 2014 NC Electrical Code went into effect on April 1st, 2016. NCDOI: 13 Amendments http://www.ncdoi.com/OSFM/Engineering_and_Codes/Documents/2014%20Edition%20-%20Effective%20April%201%202016.pdf; 2014 NC Electrical Code NFPA: http://www.nfpa.org/codes-and-standards/free-access; 2014 NEC, 2014 TIAs, 2014 Errata – • 8 TIAs • 64 Errata

  4. Item 6.1: Retain language from 2011 NEC for 110.26 (E) (2) – No Cost Impact (NEW AMENDMENT) AMENDMENT 110.26(E)(2) Amend NEC 2014, page 41: (2) Outdoor. (a) Installation Requirements. Outdoor electrical equipment shall be installed in suitable enclosures and shall be protected from accidental contact by unauthorized personnel, or by vehicular traffic, or by accidental spillage or leakage from piping systems. The working clearance space shall include the zone described in 110.26(A). No architectural appurtenance or other equipment shall be located in this zone. (b) Deleted.

  5. Item 6.2: Retain Existing NC Electrical Code Amendment to 210.8(A) (3) – No Cost Impact Amend NEC 2014, page 54: (3) Outdoors Exception No. 1 to (3): Receptacles that are not readily accessible and are supplied by a branch circuit dedicated to electric snow-melting, deicing, or pipeline and vessel heating equipment shall be permitted to be installed in accordance with 426.28 or 427.22, as applicable. Exception No. 2 to (3): A single outlet receptacle supplied by dedicated branch circuit which is located and identified for specific use by a sewage lift pump.

  6. Item 6.3: Retain language from 2011 NEC for 210.8(A) (7) {residential GFCI requirements} – No Cost Impact (NEW AMENDMENT) AMENDMENT 210.8(A)(7) Amend NEC 2014, page 54: (7) Sinks — located in areas other than kitchens where receptacles are installed within 1.8 m (6 ft.) of the outside edge of the sink.

  7. Item 6.4: Remove GFCI requirement for kitchen dishwasher branch circuit. This was not a requirement in the 2011 NEC. – No Cost Impact (NEW AMENDMENT) AMENDMENT 210.8(D) Amend NEC 2014, page 55: 210.8(D) Kitchen Dishwasher Branch Circuit. Deleted

  8. Item 6.5: Retain location requirements from 2011 NEC for AFCI Protection and remove term “readily”. – No Cost Impact (NEW AMENDMENT) Amend NEC 2014, page 56: (no kitchen or laundryrequirement) 210.12 Arc-Fault Circuit-Interrupter Protection. Arc-fault circuit-interrupter protection shall be provided as required in 210.12(A) (B), and (C). The arc-fault circuit interrupter shall be installed in an accessible location. (A) Dwelling Units. All 120-volt, single-phase, 15- and 20-ampere branch circuits supplying outlets or devices installed in dwelling unit family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways, or similar rooms or areas shall be protected by any of the means described in 210.12(A)(1) through (6):  

  9. Item 6.7: Revise to reflect NC Electrical Code Amendment with January 1, 2015 effective date. - No Cost Impact (NO CHANGE) Amend NEC 2014, page 62: 210.52 (I) Foyers. Foyers that are not part of a hallway in accordance with 210.52(H) and that have an area that is greater than 5.6 m2 (60 ft2) shall have at least one receptacle.

  10. Item 6.8: Retain Existing NC Electrical Code Amendment to 250.50 – No Cost Impact (NO CHANGE) Amend NEC 2014, page 117: 250.50 Grounding Electrode System. All grounding electrodes as described in 250.52(A)(1) through (A)(7) that are available at each building or structure served shall be bonded together to form the grounding electrode system. Where none of these grounding electrodes exist, one or more of the grounding electrodes specified in 250.52(A)(4) through (A)(8) shall be installed and used.

  11. Item 6.9: Modify 250.53 (A) (2) to match D-1 Agenda Item – No Cost Impact (NO CHANGE) Amend NEC 2014, page 118: (2) Supplemental Electrode Required. Exception No. 1: If a single, rod, pipe, or plate grounding electrode has a resistance to earth of 25 ohms or less, the supplemental electrode shall not be required. Exception No. 2: The supplemental ground electrode shall not be required at temporary electrical service installation (saw service pole) at a construction site for one and two-family residences, provided the temporary electrical service does not exceed 150 volts to ground or 100A.

  12. Item 6.10: Retain Table and Language of 2011 NEC related to sizing of Dwelling Services and Feeders – No Cost Impact (NEW AMENDMENT) AMENDMENT 310.15(B)(7) Amend NEC 2014, page 160: (7) 120/240-Volt, 3-Wire, Single-Phase Dwelling Services and Feeders. For individual dwelling units of one-family, two-family, and multifamily dwellings, conductors, as listed in Table 310.15(B)(7), shall be permitted as 120/240-volt, 3-wire, single-phase service-entrance conductors, service-lateral conductors, and feeder conductors that serve as the main power feeder to each dwelling unit and are installed in raceway or cable with or without an equipment grounding conductor. For application of this section, the main power feeder shall be the feeder between the main disconnect and the panelboard that supplies, either by branch circuits or by feeders, or both, all loads that are part of or associated with the dwelling unit. The feeder conductors to a dwelling unit shall not be required to have an allowable ampacity rating greater than their service-entrance conductors. The grounded conductor shall be permitted to be smaller than the ungrounded conductors, provided the requirements of 215.2, 220.61, and 230.42 are met.

  13. Table 310.15(B)(7) Conductor Types and Sizes for 120/240-Volt, 3-Wire, Single-Phase Dwelling Services and Feeders. Conductor Types RHH, RHW, RHW-2, THHN, THHW, THW, THW-2, THWN, THWN-2, XHHW, XHHW-2, SE, USE, USE-2

  14. Item 6.11: Retain Existing NC Electrical Code Amendment to 334.15 (C) – No Cost Impact (NO CHANGE) Amend NEC 2014, page 204: (C) In Unfinished Basements. Where cable is run at angles with joist in unfinished basements it shall be permissible to secure cables not smaller than two 6 AWG or three 8 AWG conductors directly to the lower edges of the joists. Smaller cables shall be run either through bored holes in joists or on running boards. Nonmetallic-sheathed cable installed on the wall of an unfinished basement shall be permitted to be installed in a listed conduit or tubing or shall be protected in accordance with 300.4. Conduit or tubing shall be provided with an insulating bushing or adapter at the point the cable enters the raceway. The sheath of the nonmetallic-sheathed cable sheath shall extend through the conduit or tubing and into the outlet or device box not less than 6 mm (1/4 in.). The cable shall be secured within 300 mm (12 in.) of the point where the cable enters the conduit or tubing. Metal conduit, tubing, and metal outlet boxes shall be connected to an equipment grounding conductor complying with the provisions of 250.86 and 250.148.

  15. Item 6.12: Revise to reflect NC Electrical Code Amendment with January 1, 2015 effective date. – No Cost Impact (NO CHANGE) AMENDMENT 404.2(C)(8) (grounded conductor at switches) Amend NEC 2014, page 278: (8) Where installed in residential one- and two- family dwellings. Item 6.13: Remove term “readily” from 406.4 (D) and add new exception – No Cost Impact (NEW AMENDMENT) Amend NEC 2014, page 282: (D) Replacements. Replacement of receptacles shall comply with 406.4(D)(1) through (D)(6), as applicable. Arc-fault circuit-interrupter type and ground-fault circuit-interrupter type receptacles shall be installed in an accessible location.

  16. (4) Arc-Fault Circuit-Interrupter Protection. Where a receptacle outlet is supplied by a branch circuit that requires arc-fault circuit-interrupter protection as specified elsewhere in this Code, a replacement receptacle at this outlet shall be one of the following: (1) A listed outlet branch-circuit type arc-fault circuit-interrupter receptacle (2) A receptacle protected by a listed outlet branch-circuit type arc-fault circuit-interrupter type receptacle (3) A receptacle protected by a listed combination type arc-fault circuit-interrupter type circuit breaker This requirement becomes effective January 1, 2014. Exception: Non-grounding type receptacles.

  17. Item 6.14: For one- and two-family residences, remove term “readily” from 422.5 – No Cost Impact (NEW AMENDMENT) Amend NEC 2014, page 303: 422.5 Ground-Fault Circuit-Interrupter (GFCI) Protection. The device providing GFCI protection required in this article shall be readily accessible. Exception: For one- and two-family residences, the device providing the GFCI protection required in this article shall be accessible.

  18. CODE WIDE CHANGES • There were approximately 3,745 proposals and 1,625 public comments submitted for modifications to the 2014 edition of the NEC. • Field-Applied Hazard Markings.110.21(B) was added to include specific requirements for warning labels and similar markings where required or specified elsewhere in the Code. • Lockable Disconnecting Means.New 110.25 was added to deliver a “one-stop” location providing consistent requirements for a lockable disconnecting means. • Requirements for dc Systems Integrated Throughout NEC. Direct current (dc) applications are experiencing a re-emergence because of such things as electric vehicle charging, solar photovoltaic (PV) systems, microgrids, wind-generated electric systems, etc.

  19. “Switchgear” Incorporated Throughout the NEC. The previous definition for “Metal-Enclosed Power Switchgear” was modified and retitled to simply “Switchgear” to make it inclusive of all types of switchgear under the purview of the NEC. • Definitions Relocated to Article 100. Several existing definitions which appeared in the definitions of a particular article have been relocated to Article 100 as these terms are also found in other articles, not just the article where the previous definition was located. • 600 Volts to 1000 Volts. Numerous changes throughout the NEC from the 600 volts threshold to 1000 volts. • New Articles. Four new articles added to the 2014 NEC. Code-Wide Changes (cont.)

  20. 210.5(C)(2) Branch Circuits Supplied From Direct Current Systems • New branch circuit identification requirements added for dc systems. • For sizes 6 AWG and smaller, red for positive dc conductors and black for negative dc conductors. • For branch circuits supplied from a dc system operating at more than 50 volts, each ungrounded conductor of 4 AWG or larger is to be identified by polarity at all termination, connection, and splice points by marking tape, tagging, or other approved means. • Direct current (dc) applications are experiencing a re-emergence in the electrical industry because of such things as electric vehicle charging, solar photovoltaic (PV) systems, microgrids, wind generated electric systems, etc.

  21. NEC 210.8(A)(7) GFCI: Dwelling Unit Sinks GFCI protection required for all 125-volt, single-phase, 15- and 20-ampere receptacles installed within 1.8 m (6 ft) of all dwelling unit sinks (including kitchen sinks). Revision removes the term “located in areas other than kitchens.” Rule will now include thegarbage disposal receptacle located in the cabinet under a kitchen sink, receptacle located behind a refrigerator, or a general lighting branch circuitliving room receptacle located on the back side of a kitchen sink bar area if they are located within 1.8 m (6 ft) of the kitchen sink. NC 210.8(A) (7) Sinks — located in areas other than kitchenswhere receptacles are installed within 1.8 m (6 ft) of the outside edge of the sink.

  22. NEC 210.8(D) Dwelling Unit Kitchen Dishwasher Branch Circuit • GFCI protection now required for all outlets that supply dishwashers installed in dwelling units. • Includes both receptacle and hard-wired outlet for dishwasher. • Modern-day electronically controlled dishwashers can experience “end of life” failures that can result in increased risk of electrical shock. • GFCI protection for outlets supplying dishwashers can mitigate these increased risk of electrical shock. NC Item 6.4: Remove GFCI requirement for kitchen dishwasher branch circuit. This was not a requirement in the 2011 NEC. – No Cost Impact (NEW AMENDMENT) 210.8 (D) Kitchen Dishwasher Branch Circuit. GFCI protection shall be provided for outlets that supply dishwashers installed in dwelling unit locations.

  23. 210.8(A)(9) Dwelling Unit Bathtubs or Shower Stalls • GFCI protection now required where receptacles are installed within 1.8 m (6 ft) of the outside edge of dwelling unit “Bathtubs or Shower Stalls.” • Bathtubs or shower stalls are not always located in an area that meets the Article 100 definition of a “bathroom.” • Bathroom is “an area including a basin with one or more of the following: a toilet, a urinal, a tub, a shower, a bidet, or similar plumbing fixtures.” • Example: a room or area connected to a dwelling unit bedroom with a bathtub or shower stall as the only plumbing fixture in that particular room or area with a basin sink and toilet provided in another common area of the dwelling.

  24. 210.8(A)(10) GFCI: Laundry Areas • All dwelling unit “Laundry Areas” now require GFCI protection for 125-volt, single phase, 15-and 20-ampere receptacles (regardless of presence of a sink or distance from same). • A laundry room sink is no longer the driving factor whether GFCI protection is required or not. • GFCI protection in laundry areas addresses increased shock hazard risk and is consistent with other NEC requirements for GFCI protection of receptacles in areas in close proximity of water. • Increased usage of GFCI protection for personnel at receptacles of residential homes is a highly effective means of further reducing the potential for electrical shock hazards.

  25. NEC 210.12 AFCI Protection New provision added to require all AFCI devices required by 210.12 to be installed in a readily accessiblelocation. Aligns with the “readily accessible” requirements for GFCI devices covered at 210.8. Primarily related to occupant or user accessibility to the monthly testing and reset features of AFCI devices. Will aid and facilitate the ability to reset the AFCI device in the event the AFCI detects an arcing event. NC Item 6.5: Retain location requirements from2011NEC for AFCI Protection and remove term “readily”. – No Cost Impact(NEW AMENDMENT) 210.12 Arc-Fault Circuit-Interrupter Protection. Arc-fault circuit-interrupter protection shall be provided as required in 210.12(A) (B), and (C). The arc-fault circuit interrupter shall be installed in anreadilyaccessible location. (A) Dwelling Units. All 120-volt, single-phase, 15- and 20-ampere branch circuits supplying outlets or devices installed in dwelling unit, kitchens, family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways, laundry areas, or similar rooms or areas shall be protected by any of the means described in 210.12(A)(1) through (6):

  26. 210.12(A)(1) – (6) AFCI Protection • AFCI protection methods were expanded and language put into a list format. • Provisions for outlet branch circuit (OBC) AFCI devices were expanded. • The first two previous exceptions were revised to positive language and put into a list format of six provisions for providing AFCI protection.

  27. 210.12(B) Ex. Branch Circuit Extensions or Modifications - Dwelling Units • Existing branch circuit conductors can be extended up to 1.8 m (6 ft.) without AFCI protection where no additional outlets or devices are installed for when modified or extended. • Examples where situation does not require an AFCI device to be installed: • Extending branch circuit conductors within an enclosure for the purposes of replacing a device or utilization equipment. • Extending a branch circuit a short distance to a panelboard being replaced or upgraded.

  28. Outlet(s) installed for the purpose of charging electric vehicles required to be supplied by a separate branch circuit with no other outlets. • Charging an electric vehicle (EV) with an existing 120 volt receptacle outlet will typically overload an existing general purpose branch circuit. • It should be noted that this new requirement does not demand that an outlet(s) for the specific and sole purpose of charging EV equipment be installed. • A new I-Note was also added giving guidance to 625.2 for the definition of an “Electric Vehicle.” 210.17 Electric Vehicle Branch Circuit

  29. The requirements for outdoor receptacles at dwellings have been revised to permit the required receptacle outlets to be “readily accessible from grade.” • This provision was revised by removing the “while standing at grade level” requirement. • This change will allow the deck or porch receptacle outlet to serve as one of the required outdoor receptacle outlets if it is “readily accessible from grade” with the deck or porch permitted to serve as “grade.” • Same revision to individual units of multifamily dwellings (with individual exterior entrance/egress). 210.52(E)(1) and (E)(2) Outdoor Outlets

  30. The requirement for a receptacle located at “Balconies, Decks, and Porches” has been revised to require the balcony, deck or porch to be attached to the dwelling. • Requirements for the outdoor receptacle outlet to be installed “within the perimeter” of the balcony, deck or porch have been eliminated. • “Detached” decks and such do not pose the same threat of extension cords being ran through windows and doorways as their “attached” counterparts. 210.52(E)(3) Balconies, Decks and Porches

  31. “Basements, Garages, and Accessory Buildings” receptacle provisions revised into list format. • 210.52(G)(1) Garages • 210.52(G)(2) Accessory Buildings • 201.52(G)(3) Basements • Branch circuit supplying garage receptacle(s) to supply only the garage. • Receptacle required for each car space in a garage. • This is an effort to recognize the possibility of electric vehicle (EV) and plug-in hybrid electric vehicle (PHEV) charging in these garages. 210.52(G) Basements, Garages, and Accessory Buildings

  32. Table 220.3 Additional Load Calculation References • New line item added to Table 220.3 for “Electric Vehicle Charging Equipment” and a reference to 625.14. • This will help clarify the load calculation requirements for electric vehicle (EV) charging loads (considered as continuous). • Electric vehicles and their charging stations are a growing trend in the electrical industry. • This will give a direct and necessary link from Article 220 (calculations) to Article 625 for EV charging systems.

  33. 225.36 TYPE • Disconnect type has been rewritten • Now only required to be service rated if used where applied with 250.32 (B) Exception No. 1 • All others do not require service rating

  34. 230.30 Installation and Wiring Methods (Underground Service Conductors) • 230.30 was divided into two subsections: • (A) “Insulation” • (B) “Wiring Methods” • List of acceptable wiring methods for “Underground Service Conductors” was added. • List includes all the cables and conductors that are identified in Chapter 3 as suitable for use as both service conductors and for direct burial. • This section is referring to the conductors from the service point to the service disconnecting means, which is the definition of “Service Conductors.”

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