Came across a good read, thought to give them there own thread. Anyway, without a further delay:
Ground-Fault Circuit-Interrupter Protection for Personnel – Dwelling Units – Bathtubs or shower stalls
Significance
The new Code mandates expanded use of ground-fault circuit-interrupters (GFCIs) in dwelling units.
Analysis
All 125-volt, single-phase, 15- and 20-ampere receptacle outlets installed within 6 ft of the outside edge of a bathtub or shower stall shall be GFCI protected. This change recognizes that not all bathtubs and showers are installed in rooms that qualify as bathrooms per the NEC definition. Where bathtubs or showers are installed in rooms or areas that require AFCI protection, both AFCI and GFCI protection are required for a receptacle within 6 ft of the tub or shower.
These areas may have tile or other conductive floors that, when wet, increase the hazard of using receptacles located in the area that are not GFCI protected. Note that this change resembles existing 680.71, which requires GFCI protection for receptacles located within 6 ft horizontally of the inside walls of a hydromassage bathtub.
Summary
In dwelling units, all 125-volt, single-phase, 15- and 20-ampere receptacle outlets installed within 6 ft of the outside edge of a bathtub or shower stall shall be GFCI protected. Not all bathtubs and shower stalls are located in bathrooms, where GFCI protection is already required.
Application Question
Does this Code change apply to guest rooms and guest suites?
Courtesy of Interiorholic.com
Answer
The new GFCI requirement does not apply to guest rooms and guest suites unless they qualify as dwelling units.
Code Refresher
According to the NEC, a bathroom is an area that includes a basin and one or more of the following: a toilet, a urinal, a tub, a shower, a bidet, or similar plumbing fixtures.
According to the NEC, a dwelling unit is a single unit, providing complete and independent living facilities for one or more persons, including permanent provisions for living, sleeping, cooking, and sanitation.
Copyright 2013 by Patrick S. Ouillette, P.E. 14 2 10.8(A)(10) Branch Circuits 2014 NEC
Ground-Fault Circuit-Interrupter Protection for Personnel – Dwelling Units – Laundry areas
Significance
Dwelling unit laundry rooms or areas have been added to the list where ground-fault circuit-interrupters (GFCIs) are required.
Analysis
All 125-volt, single-phase, 15- and 20-ampere receptacle outlets installed in dwelling unit laundry rooms or areas shall be GFCI protected. These circuits will also require AFCI protection (see the change in 210.12(A)). The requirement includes all such receptacles in laundry areas, not just the receptacle that supplies a clothes washer. According to existing Section 210.11(C)(2), at least one 20-ampere branch circuit shall be provided to supply the laundry receptacle outlet(s) required by 210.52(F). This circuit shall have no other outlets. Section 210.52(F) requires that, in dwelling units, at least one receptacle outlet be installed in areas designated for the installation of laundry equipment, unless an exception applies. Laundry equipment includes clothes washers, gas clothes dryers (the 120-volt pilot, etc.), clothes irons/flatirons, etc. The principal reason for the change is that laundry areas involve electrical appliances and water, with a resulting increased risk of electric shock.
Summary
All 125-volt, single-phase, 15- and 20-ampere receptacle outlets installed in dwelling unit laundry rooms or areas shall be GFCI protected.
Application Question
Where the laundry equipment and provisions are located in an area rather than a room, how is the border determined between laundry receptacles and receptacles that are not considered in the laundry area?
Answer
This will be up to the AHJ. It seems reasonable that receptacles intended for and located to serve laundry related equipment would require GFCI protection.
Code Refresher
Appliance receptacle outlets installed in dwellings for specific appliances, such as laundry equipment, shall be installed within 6 ft of the intended location of the appliance. [210.50(C)]
A load of not less than 1500 volt-amperes shall be included for each 20-A laundry branch circuit installed in a dwelling. [220.52(B)]
The load for household electric clothes dryers installed in dwellings shall be either 5000 watts (VA) or the nameplate rating, whichever is larger. [220.54]
Copyright 2013 by Patrick S. Ouillette, P.E. 15 2 10.8(B)(8) Branch Circuits 2014 NEC
Ground-Fault Circuit-Interrupter Protection for Personnel – Other Than Dwelling Units – Garages, service bays, and similar areas other than vehicle exhibition halls and showrooms
Significance
This Code change expands the requirement for GFCI-protected receptacles to most types of non-dwelling garages whether or not electrical hand tools or other electrical equipment are to be used.
Analysis
The garages covered by this rule are nondwelling garages not within the scope of Article 511, Commercial Garages, for which GFCI protection for certain receptacles is already a requirement. Article 511 covers areas used for service and repair operations in connection with self-propelled vehicles in which volatile flammable liquids or flammable gases are used for fuel or power. A flammable liquid is any liquid that has a closed-cup flashpoint below 100°F (37.8°C). Garages for the service and repair of diesel-fueled vehicles are not within the scope of Article 511, since diesel fuel has a flash point above 100°F.
Magellan’s Yacht StorageGFCI protection not requiredThe "Volt" - ShowroomOwl’s Head Transportation MuseumGFCI protection requiredDOT Maintenance GarageJim’s RV Sales and ServiceJoe’s Electric Moped RepairMagellan’s Yacht StorageSchool Bus GarageJerry’s Auto Detail
This Code change applies to nondwelling unit garages (including diesel garages), service bays, and similar areas whether or not electrical diagnostic equipment, electrical hand tools, or portable lighting equipment are to be used. The diagram above shows examples of garages where the rule applies. The Code specifically exempts vehicle showrooms and exhibition halls from the GFCI requirement. See 555.19(B)(1) for GFCI requirements for Magellan’s Yacht Storage.
Summary
All 125-volt, single-phase, 15- and 20-ampere receptacles installed in nondwelling garages, service bays, and similar areas shall have GFCI protection for personnel. Vehicle showrooms and exhibition halls are exempt from the GFCI requirement.
Application Question
Does the NEC define garage?
Answer
Yes, in Article 100: "A building or portion of a building in which one or more self-propelled vehicles can be kept for use, sale, storage, rental, repair, exhibition, or demonstration purposes."
Copyright 2013 by Patrick S. Ouillette, P.E. 16 2 10.8(D) Branch Circuits 2014 NEC
Ground-Fault Circuit-Interrupter Protection for Personnel – Kitchen Dishwasher Branch Circuit
Significance
At some point it seems likely that whole-house GFCI and AFCI will be the norm. The change in 210.8(D) is one of the instances where the 2014 Code requires both GFCI and AFCI protection. AFCI protection is required for the entire circuit; GFCI protection is required for the appliance.
Analysis
GFCI protection shall be provided for outlets that supply dishwashers installed in dwelling unit locations. GFCI devices have proven effective in reducing shock hazards and are particularly important where an electric appliance or equipment is used within reach of grounded surfaces or objects, such as metal sinks or other grounded metal appliances in kitchens. This Code change is not placed within subsection (A) of 210.8, since it address outlets rather than receptacles. The new requirement applies to both cord-and-plug connected and hard-wired dishwashers. A new AFCI requirement for kitchen circuits (including the DW circuit) is covered in Section 210.12(A).
An AFCI can be used in conjunction with GFCI protection to provide both arcing fault protection and 5 mA ground-fault protection for persons. One way to provide both types of protection is to use an AFCI circuit breaker and a GFCI receptacle. AFCIs that incorporate 5 mA GFCI protection into the same package should become available in the near future. Both AFCI and GFCI devices must be installed in readily accessible locations.
Visit www.AFCISafety.org for a wealth of information on arc-fault circuit interrupters and use of AFCI and GFCI on the same circuit.
Summary
Dishwashers in dwelling units shall be GFCI protected.
Application Question
Where would you locate a GFCI receptacle that serves the dishwasher in a dwelling?
Answer
Since the GFCI receptacle must be readily accessible, a standard receptacle could be located behind the dishwasher (a common practice) connected downstream from a dead-front/blank face GFCI receptacle located on the wall above the kitchen countertop.
Code Refresher
For cord-and-plug-connected appliances, an accessible plug and receptacle is permitted to serve as the required disconnecting means. [422.33(A)]
Ground-Fault Circuit-Interrupter Protection for Personnel – Dwelling Units – Bathtubs or shower stalls
Significance
The new Code mandates expanded use of ground-fault circuit-interrupters (GFCIs) in dwelling units.
Analysis
All 125-volt, single-phase, 15- and 20-ampere receptacle outlets installed within 6 ft of the outside edge of a bathtub or shower stall shall be GFCI protected. This change recognizes that not all bathtubs and showers are installed in rooms that qualify as bathrooms per the NEC definition. Where bathtubs or showers are installed in rooms or areas that require AFCI protection, both AFCI and GFCI protection are required for a receptacle within 6 ft of the tub or shower.
These areas may have tile or other conductive floors that, when wet, increase the hazard of using receptacles located in the area that are not GFCI protected. Note that this change resembles existing 680.71, which requires GFCI protection for receptacles located within 6 ft horizontally of the inside walls of a hydromassage bathtub.
Summary
In dwelling units, all 125-volt, single-phase, 15- and 20-ampere receptacle outlets installed within 6 ft of the outside edge of a bathtub or shower stall shall be GFCI protected. Not all bathtubs and shower stalls are located in bathrooms, where GFCI protection is already required.
Application Question
Does this Code change apply to guest rooms and guest suites?
Courtesy of Interiorholic.com
Answer
The new GFCI requirement does not apply to guest rooms and guest suites unless they qualify as dwelling units.
Code Refresher
According to the NEC, a bathroom is an area that includes a basin and one or more of the following: a toilet, a urinal, a tub, a shower, a bidet, or similar plumbing fixtures.
According to the NEC, a dwelling unit is a single unit, providing complete and independent living facilities for one or more persons, including permanent provisions for living, sleeping, cooking, and sanitation.
Copyright 2013 by Patrick S. Ouillette, P.E. 14 2 10.8(A)(10) Branch Circuits 2014 NEC
Ground-Fault Circuit-Interrupter Protection for Personnel – Dwelling Units – Laundry areas
Significance
Dwelling unit laundry rooms or areas have been added to the list where ground-fault circuit-interrupters (GFCIs) are required.
Analysis
All 125-volt, single-phase, 15- and 20-ampere receptacle outlets installed in dwelling unit laundry rooms or areas shall be GFCI protected. These circuits will also require AFCI protection (see the change in 210.12(A)). The requirement includes all such receptacles in laundry areas, not just the receptacle that supplies a clothes washer. According to existing Section 210.11(C)(2), at least one 20-ampere branch circuit shall be provided to supply the laundry receptacle outlet(s) required by 210.52(F). This circuit shall have no other outlets. Section 210.52(F) requires that, in dwelling units, at least one receptacle outlet be installed in areas designated for the installation of laundry equipment, unless an exception applies. Laundry equipment includes clothes washers, gas clothes dryers (the 120-volt pilot, etc.), clothes irons/flatirons, etc. The principal reason for the change is that laundry areas involve electrical appliances and water, with a resulting increased risk of electric shock.
Summary
All 125-volt, single-phase, 15- and 20-ampere receptacle outlets installed in dwelling unit laundry rooms or areas shall be GFCI protected.
Application Question
Where the laundry equipment and provisions are located in an area rather than a room, how is the border determined between laundry receptacles and receptacles that are not considered in the laundry area?
Answer
This will be up to the AHJ. It seems reasonable that receptacles intended for and located to serve laundry related equipment would require GFCI protection.
Code Refresher
Appliance receptacle outlets installed in dwellings for specific appliances, such as laundry equipment, shall be installed within 6 ft of the intended location of the appliance. [210.50(C)]
A load of not less than 1500 volt-amperes shall be included for each 20-A laundry branch circuit installed in a dwelling. [220.52(B)]
The load for household electric clothes dryers installed in dwellings shall be either 5000 watts (VA) or the nameplate rating, whichever is larger. [220.54]
Copyright 2013 by Patrick S. Ouillette, P.E. 15 2 10.8(B)(8) Branch Circuits 2014 NEC
Ground-Fault Circuit-Interrupter Protection for Personnel – Other Than Dwelling Units – Garages, service bays, and similar areas other than vehicle exhibition halls and showrooms
Significance
This Code change expands the requirement for GFCI-protected receptacles to most types of non-dwelling garages whether or not electrical hand tools or other electrical equipment are to be used.
Analysis
The garages covered by this rule are nondwelling garages not within the scope of Article 511, Commercial Garages, for which GFCI protection for certain receptacles is already a requirement. Article 511 covers areas used for service and repair operations in connection with self-propelled vehicles in which volatile flammable liquids or flammable gases are used for fuel or power. A flammable liquid is any liquid that has a closed-cup flashpoint below 100°F (37.8°C). Garages for the service and repair of diesel-fueled vehicles are not within the scope of Article 511, since diesel fuel has a flash point above 100°F.
Magellan’s Yacht StorageGFCI protection not requiredThe "Volt" - ShowroomOwl’s Head Transportation MuseumGFCI protection requiredDOT Maintenance GarageJim’s RV Sales and ServiceJoe’s Electric Moped RepairMagellan’s Yacht StorageSchool Bus GarageJerry’s Auto Detail
This Code change applies to nondwelling unit garages (including diesel garages), service bays, and similar areas whether or not electrical diagnostic equipment, electrical hand tools, or portable lighting equipment are to be used. The diagram above shows examples of garages where the rule applies. The Code specifically exempts vehicle showrooms and exhibition halls from the GFCI requirement. See 555.19(B)(1) for GFCI requirements for Magellan’s Yacht Storage.
Summary
All 125-volt, single-phase, 15- and 20-ampere receptacles installed in nondwelling garages, service bays, and similar areas shall have GFCI protection for personnel. Vehicle showrooms and exhibition halls are exempt from the GFCI requirement.
Application Question
Does the NEC define garage?
Answer
Yes, in Article 100: "A building or portion of a building in which one or more self-propelled vehicles can be kept for use, sale, storage, rental, repair, exhibition, or demonstration purposes."
Copyright 2013 by Patrick S. Ouillette, P.E. 16 2 10.8(D) Branch Circuits 2014 NEC
Ground-Fault Circuit-Interrupter Protection for Personnel – Kitchen Dishwasher Branch Circuit
Significance
At some point it seems likely that whole-house GFCI and AFCI will be the norm. The change in 210.8(D) is one of the instances where the 2014 Code requires both GFCI and AFCI protection. AFCI protection is required for the entire circuit; GFCI protection is required for the appliance.
Analysis
GFCI protection shall be provided for outlets that supply dishwashers installed in dwelling unit locations. GFCI devices have proven effective in reducing shock hazards and are particularly important where an electric appliance or equipment is used within reach of grounded surfaces or objects, such as metal sinks or other grounded metal appliances in kitchens. This Code change is not placed within subsection (A) of 210.8, since it address outlets rather than receptacles. The new requirement applies to both cord-and-plug connected and hard-wired dishwashers. A new AFCI requirement for kitchen circuits (including the DW circuit) is covered in Section 210.12(A).
An AFCI can be used in conjunction with GFCI protection to provide both arcing fault protection and 5 mA ground-fault protection for persons. One way to provide both types of protection is to use an AFCI circuit breaker and a GFCI receptacle. AFCIs that incorporate 5 mA GFCI protection into the same package should become available in the near future. Both AFCI and GFCI devices must be installed in readily accessible locations.
Visit www.AFCISafety.org for a wealth of information on arc-fault circuit interrupters and use of AFCI and GFCI on the same circuit.
Summary
Dishwashers in dwelling units shall be GFCI protected.
Application Question
Where would you locate a GFCI receptacle that serves the dishwasher in a dwelling?
Answer
Since the GFCI receptacle must be readily accessible, a standard receptacle could be located behind the dishwasher (a common practice) connected downstream from a dead-front/blank face GFCI receptacle located on the wall above the kitchen countertop.
Code Refresher
For cord-and-plug-connected appliances, an accessible plug and receptacle is permitted to serve as the required disconnecting means. [422.33(A)]