Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: AFCI requirements in 2014 Code

  1. #1
    Join Date
    Dec 2008
    Posts
    198

    AFCI requirements in 2014 Code

    It is my understanding that AFCI is not required for security/fire detection systems with a control panel, connections to a fire alarm that are in conduit, and ice melting equipment.

    What about:
    medical life support equipment
    240 volt appliances
    fau dedicated receptacle
    garbage disposal circuit
    dishwasher circuit
    hard wired appliances

  2. #2
    Join Date
    Jan 2009
    Location
    Maryland
    Posts
    11,631
    Quote Originally Posted by mlnk View Post
    It is my understanding that AFCI is not required for security/fire detection systems with a control panel, connections to a fire alarm that are in conduit, and ice melting equipment.
    Security/burglary is exempt from GFCI, not AFCI. Fire alarm system has an exemption.

    Exception: Where an individual branch circuit to a fire
    alarm system installed in accordance with 760.41(B) or
    760.121(B) is installed in RMC, IMC, EMT, or steel sheathed
    cable, Type AC or Type MC, meeting the requirements
    of 250.118, with metal outlet and junction boxes,
    AFCI protection shall be permitted to be omitted
    Ditto for Ice melting equipment, but ice melting stuff is not installed in an area requiring AFCI.

    For the list below you can determine from the text:

    210.12(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):
    What about:
    medical life support equipment
    240 volt appliances
    fau dedicated receptacle
    garbage disposal circuit
    dishwasher circuit
    hard wired appliances
    Note the bold in the text. It is the branch circuit that requires AFCI, not the specific equipment.So each piece of your list is voltage, amperage, and location dependent. No piece is excluded in of itself in the code section. As a side note the only piece of equipment I know that requires AFCI or LCDI is room ACs.
    "Electricity is really just organized lightning." George Carlin


    Derek

  3. #3
    Join Date
    Jun 2008
    Location
    Diamond bar, CA , Tempe AZ
    Posts
    329
    If you are worried about the FAU not working due to a tripped AFCI place the it in a room or area not required to be AFCI.

  4. #4
    Join Date
    Dec 2008
    Posts
    198
    Quote Originally Posted by flatlander View Post
    If you are worried about the FAU not working due to a tripped AFCI place the it in a room or area not required to be AFCI.
    So all the kitchen appliances would be on AFCI circuits.
    And a security system would be on an AFCI circuit if installed in one of the requirerd rooms.

    Now my AFCI NOT required list for 2014 NEC is:
    garage circuits
    utility room circuits
    outdoor circuits
    fau because they are installed in garage or an fau enclosure
    Any medical equipment that has instructions saying no AFCI
    Fire alarm circuit in metal conduit

  5. #5
    Join Date
    Jan 2009
    Location
    Maryland
    Posts
    11,631
    Quote Originally Posted by mlnk View Post
    So all the kitchen appliances would be on AFCI circuits.
    And a security system would be on an AFCI circuit if installed in one of the requirerd rooms.

    Now my AFCI NOT required list for 2014 NEC is:
    garage circuits
    utility room circuits
    outdoor circuits
    fau because they are installed in garage or an fau enclosure
    Any medical equipment that has instructions saying no AFCI
    Fire alarm circuit in metal conduit
    Careful.

    Any circuit serving a 240V or 120V 30A or greater appliance would not be AFCI.

    Just because a manufacturer instructions says no AFCI, there is no automatic exemption for medical equipment. AHJ could possibly grant one.

    The fire alarm exemption is not area dependent. Wiring method is the determination.

    What is a "fau enclosure".
    "Electricity is really just organized lightning." George Carlin


    Derek

  6. #6
    Join Date
    Dec 2008
    Posts
    198
    Quote Originally Posted by jumper View Post
    Careful.

    Any circuit serving a 240V or 120V 30A or greater appliance would not be AFCI.

    Just because a manufacturer instructions says no AFCI, there is no automatic exemption for medical equipment. AHJ could possibly grant one.

    The fire alarm exemption is not area dependent. Wiring method is the determination.

    What is a "fau enclosure".
    A closet which has a fau in it. Sometimes there is a water heater in the closet too.
    I think the manufacturer's instructions dominate over the AHJ rules.
    Also, there is a section of the NEC that defers to following manuf instructions.

    So my new list….
    AFCI NOT required list for 2014 NEC:
    garage circuits
    utility room circuits
    outdoor circuits
    fau because they are installed in garage or a utility closet
    Any electrical equipment that has instructions saying no AFCI
    Fire alarm circuit in metal conduit
    240 volt circuit
    120 volt circuit rated 30 amp or higher
    Some AHJs say no AFCI for smoke detectors or paddle fans or they use 2005 NEC for AFCI placement

  7. #7
    Join Date
    Jan 2009
    Location
    Maryland
    Posts
    11,631
    Quote Originally Posted by mlnk View Post
    A closet which has a fau in it. Sometimes there is a water heater in the closet too.
    My 2 cents: call that a really small utility room. Closets are mentioned in 210.12 so you are just giving an AHJ a reason to balk.
    The section does not specifically say clothes closet, which is defined in the NEC.


    I think the manufacturer's instructions dominate over the AHJ rules.
    Also, there is a section of the NEC that defers to following manuf instructions.
    Er, ya gotta follow both. The section says you have to follow manufacturer's instructions, but that is not exemption from following other sections of the NEC.


    Any electrical equipment that has instructions saying no AFCI
    Nope. The AHJ can just say install it in an area that does not require AFCI if you want to have it.

    Some AHJs say no AFCI for smoke detectors or paddle fans or they use 2005 NEC for AFCI placement
    NEC has no allowance for either. If local rules or the inspector is allowing that fine.

    Do you have a statewide code where you are at?
    "Electricity is really just organized lightning." George Carlin


    Derek

  8. #8
    Join Date
    Apr 2016
    Location
    Tampa, Fl
    Posts
    129
    Quote Originally Posted by mlnk View Post
    A closet which has a fau in it. Sometimes there is a water heater in the closet too.
    I think the manufacturer's instructions dominate over the AHJ rules.
    Also, there is a section of the NEC that defers to following manuf instructions.

    So my new list….
    AFCI NOT required list for 2014 NEC:
    garage circuits
    utility room circuits
    outdoor circuits
    fau because they are installed in garage or a utility closet
    Any electrical equipment that has instructions saying no AFCI
    Fire alarm circuit in metal conduit
    240 volt circuit
    120 volt circuit rated 30 amp or higher
    Some AHJs say no AFCI for smoke detectors or paddle fans or they use 2005 NEC for AFCI placement
    (B) Branch Circuit. The branch circuit supplying the fire alarm equipment(s) shall supply no other loads. The location
    of the branch-circuit overcurrent protective device shall be
    permanently identified at the fire alarm control unit. The cir-
    cuit disconnecting means shall have red identification, shall be
    accessible only to qualified personnel, and shall be identitied
    as "FIRE ALARM CIRCUIT." The red identification shall not
    damage the overcurrent protective devices or obscure the
    70-689 760.43 ARTrCLE 760 - FIRE ALARM SYSTEMS
    manufacturer's markings. This branch circuit shall not be sup-
    plied through ground-fault circuit interrupters or arc-fault
    circuit-interrupters.

  9. #9
    Join Date
    Jan 2009
    Location
    Maryland
    Posts
    11,631
    Quote Originally Posted by Unbridled View Post
    (B) Branch Circuit. The branch circuit supplying the fire alarm equipment(s) shall supply no other loads. The location
    of the branch-circuit overcurrent protective device shall be
    permanently identified at the fire alarm control unit. The cir-
    cuit disconnecting means shall have red identification, shall be
    accessible only to qualified personnel, and shall be identitied
    as "FIRE ALARM CIRCUIT." The red identification shall not
    damage the overcurrent protective devices or obscure the
    70-689 760.43 ARTrCLE 760 - FIRE ALARM SYSTEMS
    manufacturer's markings. This branch circuit shall not be sup-
    plied through ground-fault circuit interrupters or arc-fault
    circuit-interrupters.
    That is not a blanket exemption from GFCI or AFCI requirements for a dwelling unit.

    One has to follow the rules in the exceptions in 210.8 and 210.12.
    "Electricity is really just organized lightning." George Carlin


    Derek

  10. #10
    Join Date
    Apr 2016
    Location
    Tampa, Fl
    Posts
    129
    Quote Originally Posted by jumper View Post
    That is not a blanket exemption from GFCI or AFCI requirements for a dwelling unit.

    One has to follow the rules in the exceptions in 210.8 and 210.12.
    I can see the confusion here as 760.41(B) clearly exempts F/A NPLFA Circuits from GFCI and AFCI requirements regardless of wiring method (my assumption), where as 210.12(A)(5) indicates a metal type wiring method is required for the exemption.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •