Page 43 - IEC Insights May-June21_PAGES
P. 43

Tell us about the GFCI language     Can you tell us about the 2020   GFCI technology is unforgiving in that
           Q. What is the rationale for change? Q. change for safer equipment    it’s built to detect even the slightest
                                                    maintenance for workers?     power variance, and when expanded
                 NEC 2017 language only accounts                                 to include outlets impacting new types
            A. for 15- and 20-amp receptacle        The NEC expanded GFCI protection   of loads, questions arise. With GFCIs
            outlets for dwelling units. During 2020   A. under Article 210.63(A) for HVAC   installed, leakage-current trips may be
            code review meetings, panel members   equipment and Article 210.63(B) for   near constant, rendering large equipment
            agreed that hazards always exist; if 15-   indoor service equipment and indoor   unusable. In the future, I hope industries
            and 20-amp receptacle outlets present a   equipment requiring dedicated space.  rethink products with acceptable leakage
            hazard, that hazard also exists on 30-amp                            current, hertz, and frequency values to
            and higher receptacle outlets. However, it   Equipment location is at the crux of   reduce future compatibility issues.
            was difficult to understand the likelihood   this update. While HVAC equipment in
            of a hazardous occurrence when weighed   the basement is covered now that all   Further, this change will likely spur
            against expanded requirements. Home-  basement circuits are GFCI protected,   discussions related to current GFCI
            based electrocution accidents – a   HVAC equipment located in attics and   requirements focusing only on receptacle
            10-year-old girl (https://bit.ly/3tA2J5R)   other areas would likely not have GFCI   outlets. Hardwiring equipment does not
            behind an energized appliance, a child   protection. CMP 2 recognized that many   eliminate the electrical hazard. I venture
            in Oklahoma (https://bit.ly/3x9GZ2K)   HVAC areas are typically tight working   someone will propose public inputs during
            retrieving a pet behind a clothes dryer, a   spaces where technicians perform justified   the next code-review cycle to challenge
            10-year-old Houston boy (https://wapo.  energized work (they can’t troubleshoot   details about receptacle outlets versus
            st/2QzLwLd) playing hide and seek –   a de-energized circuit). In essence, the   outlets requiring GFCI protection.
            helped panel members realize the need   update assures equipment requiring
            for change. In light of these tragic events,   service has a GFCI-protected receptacle
            we now have a requirement that sets a   outlet for ready access.             What are the sweeping global
            higher standard across more areas of the                             Q. language changes and what is
            Code, though there are some exceptions   Because this is the NEC’s first venture   the rationale for them?
            that I’ll explain later.           into expanding 210.63, I expect some
                                               inspectors and contractors may not see   The NEC reviewed all locations
                                               eye to eye on code language. Industry   A. with a GFCI requirement and
                   Tell us about the GFCI language   discussions across the country and during   aligned with Article 210.8. Updates were
           Q. What is the 2020 change for      future review cycles will help the NEC   made in many locations to include text,
                 better protection in basements?  make future improvements.      such as “in addition to the requirements
                                                                                 of 210.8” and similar, to clarify language
                 The NEC expanded GFCI protection                                and eliminate misinterpretation.
            A. for dwelling units with basements    And, what is the change for
            both finished and unfinished.     Q. safer outdoor outlets?          The NEC included Article 210.8(B)
                                                                                 for other than dwelling units in 1993.
            Often afterthoughts that present unique   The NEC updated the Code for   Before its inclusion, builders relied on
            hazards, basements are typically not as   A. outdoor outlets supplied by single-  requirements in later chapters of the
            well maintained as other areas of the   phase branch circuits rated 150 volts to   Code (chapters five through seven), for
            home. Further, environments are often   ground or less, 50 amps or less. Key to this   safety guidance. For example, RV Park
            wet and damp, and moisture is a great   update: it extends beyond receptacle outlets   GFCI requirements added in 1978 aligned
            conductor. These code updates help   to include all outlets. Now all hard-wired   with 210.8’s 15- and 20-amp receptacle
            ensure that accidents due to factors such   equipment falls under the Code’s purview.   outlet GFCI protection philosophy at that
            as leakage current and contact with water                            time. NEC 2017 created some confusion
            are considerably lessened or eliminated.   One downfall of the electrical business is   when 210.8(B) increased GFCI protection
                                               that it’s more reactive than proactive, with   requirements beyond 15- and 20-amp
            Many rooms in a home are already   accidents often the catalyst for change.   receptacle outlets for other than dwelling
            required to have GFCI protection.   Numerous incidents inspired this code   units. This presented a challenge: a
            While it feels like the most logical code   change, including an accident involving a   chapter two requirement applied a
            progression, others in the industry still   12-year-old boy (https://bit.ly/3mZcCHK)   generally wider level of GFCI protection.
            pushback on requiring GFCIs throughout   who jumped over a fence and touched an   This conflicted with chapter five, which
            a home claiming financial concerns or   AC condenser unit with an electrical fault.   has less coverage of GFCI protection.
            installation problems. As with the parental   The outer metal housing was electrified
            language update, I believe this code   and the child was fatally electrocuted   The correlating committee recognized
            change can inspire discussions to include   immediately upon coming in contact with   similar conflicts exist across industries and
            GFCIs throughout the home.         the condenser and fence simultaneously.    formulated a task group that challenged



                                                                           www.ieci.org | May/June 2021 | Insights Magazine  41
   38   39   40   41   42   43   44   45   46   47   48