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Thread: 110.26 (D), is automatic control REQUIRED?

  1. #11
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    No, it does NOT mean that automatic control is required. It means what it says: you can't have automatic control only.

    Some energy codes require occupancy sensors, but as mentioned above, there is usually an exception that the energy code doesn't apply if its a safety or security issue. The NEC requirement leaves no doubt - using only an occupancy sensor in an electrical room is a safety issue.

    A simple toggle switch is fine for an electrical room.

    If you install an occupancy sensor and a manual override switch, IMO chances are the janitor will always leave the override switch on, so I usually just show a simple switch on plans.

  2. #12
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    Quote Originally Posted by me50soup View Post
    (NEC 2014) 110.26 (D) states that lighting for electrical rooms "shall not be controlled by automatic means only."

    Does that mean that automatic control is REQUIRED? Can you use a simple on/off switch and not violate this code?

    Need multiple answers/opinions on this, got into a deep discussion with a PE about this particular code.
    It means that you need to be able to manually keep the lights on, while working in the room. A simple switch would work, unless there is a compelling reason to do otherwise. You don't want a motion sensor or timer to automatically turn the light off, and leave the worker literally in the dark.

  3. #13
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    Quote Originally Posted by me50soup View Post
    (NEC 2014) 110.26 (D) states that lighting for electrical rooms "shall not be controlled by automatic means only."

    Does that mean that automatic control is REQUIRED? Can you use a simple on/off switch and not violate this code?

    Need multiple answers/opinions on this, got into a deep discussion with a PE about this particular code.
    you are in so calif. you have T24:2016 to deal with as well as the NEC.
    this means your job should have T24:2016 certification BEFORE you get a final electrical.

    as this horse was beaten in the other thread, i'll put it this way:

    if i was doing the third party certification on this job, i'd want a ceiling mounted motion sensor in
    an appropriate location to see the entire room. i'd use more than one, if the room was funny shaped, etc,
    and put the sensor(s) over 4' from any air conditioning discharge, if one is present.
    i'd use wireless ones, for ease of install. lutron makes nice ones. they work well.

    i'd have a switch paired to the ceiling mounted sensors. this way, you can force the light on, or off,
    as you see fit. lutron makes a nice wall switch that pairs to those easily. you can see a working demonstration
    at any starbucks. look in the bathroom.

    if it was an itty bitty panel room, i'd put a wattstopper PW-100, and move on to another adventure.

    i'd certify such an installation, and it isn't gonna nuisance trip on you while you are in the room, doing
    hot work on the switchgear. not that we do any of that, but in theory.

    if you are in such a room configured that way, and are spastic with fear of the lights going off,
    plug in a worklight, and take a deep breath.
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  4. #14
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    Quote Originally Posted by Fulthrotl View Post
    if you are in such a room configured that way, and are spastic with fear of the lights going off,
    plug in a worklight, and take a deep breath.
    Or one of those nice new battery operated LED work lights.

  5. #15
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    Quote Originally Posted by Fulthrotl View Post
    you are in so calif. you have T24:2016 to deal with as well as the NEC.
    this means your job should have T24:2016 certification BEFORE you get a final electrical.
    Actually, Title 24 2016 for California exempts the use of automatic shut-off (i.e. occupancy sensors) for electrical rooms. However, the automatic shut-off exception in T24:2016 SPECIFICALLY states that "electrical equipment rooms [are] subject to Article 110.26(D)"

    You can find this on T24 CEC 2016, pg 155, "Exception 4 to 130.1(c)".

    So my question still stands, do you NEED an automatic shut-off (i.e. occupancy sensor) for electrical rooms. So far majority of people say you don't.

  6. #16
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    Quote Originally Posted by me50soup View Post
    So my question still stands, do you NEED an automatic shut-off (i.e. occupancy sensor) for electrical rooms. So far majority of people say you don't.
    No.

  7. #17
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    Quote Originally Posted by me50soup View Post
    (NEC 2014) 110.26 (D) states that lighting for electrical rooms "shall not be controlled by automatic means only."

    Does that mean that automatic control is REQUIRED? Can you use a simple on/off switch and not violate this code?

    Need multiple answers/opinions on this, got into a deep discussion with a PE about this particular code.

    No not required.
    Yes you can use a simple on/off.

    JAP>

  8. #18
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    Dec 2007
    Location
    NE Nebraska
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    Quote Originally Posted by Fulthrotl View Post
    you are in so calif. you have T24:2016 to deal with as well as the NEC.
    this means your job should have T24:2016 certification BEFORE you get a final electrical.

    as this horse was beaten in the other thread, i'll put it this way:

    if i was doing the third party certification on this job, i'd want a ceiling mounted motion sensor in
    an appropriate location to see the entire room. i'd use more than one, if the room was funny shaped, etc,
    and put the sensor(s) over 4' from any air conditioning discharge, if one is present.
    i'd use wireless ones, for ease of install. lutron makes nice ones. they work well.

    i'd have a switch paired to the ceiling mounted sensors. this way, you can force the light on, or off,
    as you see fit. lutron makes a nice wall switch that pairs to those easily. you can see a working demonstration
    at any starbucks. look in the bathroom
    .

    if it was an itty bitty panel room, i'd put a wattstopper PW-100, and move on to another adventure.

    i'd certify such an installation, and it isn't gonna nuisance trip on you while you are in the room, doing
    hot work on the switchgear. not that we do any of that, but in theory.

    if you are in such a room configured that way, and are spastic with fear of the lights going off,
    plug in a worklight, and take a deep breath.
    Any Starbuck's or do we have to go to Starbuck's in CA to see this?

    How about a automatic controlled plus a manual controlled light? Asking about compliance with energy codes on this, maybe the manual controlled switch away from usual entry to the room?

  9. #19
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    Jan 2007
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    3,531
    Quote Originally Posted by jwelectric View Post
    Why do people try to make this so hard?

    What has happened to common sense?

    It makes perfect sense to me to just install a switched receptacle in the electrical room and call it good, or does it?

    To answer your question, no an automatic means is not required to be installed and if one is installed it cannot control the lights in the area of the switch gear, panel board or motor control center. We don’t want to put anyone who might be servicing this equipment in the dark.
    I agree an automatic means to control the lighting is not required unless there's a local code which does require it , but, I disagree that it cannot control the lighting in the area of the switchgear, Panel board or Motor Control Center per what the rule states.

    The rule states that the lighting shall not be controlled by "Automatic means Only"

    so,

    Yes, an automatic means can be installed to control the lights in the area of the switchgear, panel board or motor control center, as long as you provide an alternate means to be able to bypass the automated means manually.




    JAP>

  10. #20
    Join Date
    Mar 2008
    Posts
    3

    greg.ross

    California does not require automatic shut off and we would tell an installer to remove the automatic control to pass inspection.

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