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Thread: arc flash labling

  1. #1
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    Dec 2013
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    Hanover park, il
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    arc flash labling

    are employers, required ( in industrial envroments) to put arc flash lables on the electrical equipment, electrical boxes and switch gear,
    where can I find this information, The 2011 NEC states Shell be,

  2. #2
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    Quote Originally Posted by reyamkram View Post
    are employers, required ( in industrial envroments) to put arc flash lables on the electrical equipment, electrical boxes and switch gear,
    where can I find this information, The 2011 NEC states Shell be,
    They are required to be there. It is not required that the employer put them there. An obvious example would be when a contact employee is working in a facility not owned by his employer.
    Bob

  3. #3
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    NFPA 70E-2015 Article 130.5(D) states that the owner of the electrical equipment shall be responsible for the documentation, installation, and maintenance of the field marked label. This refers to the information required on an arc flash label.

  4. #4
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    Quote Originally Posted by reyamkram View Post
    The 2011 NEC states Shell be,
    Typically Arc Flash labeling, of existing equipment, is covered by NFPA 70E Electrical Safe Work Practices. These labels require a risk analysis and often involve calculations to determine hazard levels.

    The NEC, NFPA70, has recently added some minor requirements for general labeling at the time of installation. These labels often are applied without any analysis.
    Just because you can, doesn't mean you should.

  5. #5
    Join Date
    Dec 2010
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    Quote Originally Posted by reyamkram View Post
    are employers, required ( in industrial envroments) to put arc flash lables on the electrical equipment, electrical boxes and switch gear,
    where can I find this information, The 2011 NEC states Shell be,
    A very good resource is https://www.arcflashforum.com/index.php. It is moderated by someone who is very active in the IEEE.
    The more they overthink the plumbing, the easier it is to stop up the drain

  6. #6
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    Jan 2015
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    st louis, mo
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    19

    label is current but beyond 5 years

    What do we do about labels that are still current as far as the data ( PPE, Cals, ect) but are over 5 years old. Should dates be put on AF labels. Relabeling is not a requirement but how is somebody supposed to know if the label is still accurate if it is over 5 years old?

  7. #7
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    Mar 2013
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    Rutland, VT, USA
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    How do you know the data is still good on the label? Did someone contact the utility to verify that the available short circuit current and X/R change? That is one very valid reason to perform a review every 5 years. Also you should verify that the labels contain the information required by the current edition of NFPA 70E as that may drive a label change.

    If there are truly no changes then it should be documented to back up leaving the labels as is even if there is a date of the study on the label.

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