Building Code and Building Construction - Questions and Answers
Or when you want to know how construction is supposed to be done.

|
AskCodeMan.com
|
The following Codemen are available to answer your questions:
All Codes and Standards - Jerry Peck, Codeman


Q&A Board links
  • REGISTER

  • FAQ

  • LOGIN

  • Q&A BOARD INDEX

  • View New Questions

  • View Unanswered Questions

  • View Active Questions/Answers

  • Mark Questions as read

  • View Your Questions

  • Go To Your User Control Panel




  • Links to:
  • Construction Litigation Consultants


  • Florida Building Commission

  • Florida Building Codes Online


  • International Code Council

  • ICC Codes Free Online


  • Building Officials and Administrators of Florida




  • Product Approvals
  • Florida Product Approval

  • ICC Evaluation Reports Search

  • Miami-Dade NOA Search




  • Inspector and Contractor License Search
  • Search Florida Licenses




  • Technical links
  • Technical Information page


























































  • Contact Codeman



  • Custom Search

    ARC-FLASH Labeling question

    ARC-FLASH Labeling question

    New postby JohnSTI on Thu Dec 10, 2015 11:56 am

    I have recently been given the responsible of "Safety Manager" within my facility...I'm now focusing on Panel Boxes...The current Panels I'm auditing have been around for almost 30 years...I can find no "Arc-Flash" labeling or "Fault Current" labeling...

    I went to our "Utilities" providers Transformer that supplies power to our facility (just outside the building) it looks just as old as the panels within the facility. It's all gray with two labels (see attachments) one is a warning label stating "keep out hazardous voltage inside" the other is a warning label stating "Potential Arc Flash Hazard"

    I could not find any labeling as to the Input/Output voltage or current. I believe I need these in order to perform an "Arc-Flash" assessment for the Main power panels within our facility.
    1st question---Should this labeling (input/output V & I) be on the Utilities Transformer? or do I have to call and they have to supply this information?

    2nd question--- the only panels required to have the "Arc-Flash" labeling are panels containing voltages of 220/240 and over?

    3rd and last question---Where an "Arc-Flash" label is required is a "Fault Current" rating label required also...

    t's easier to convince particular people that they have been in violation for years when I have more than just my opinion available.

    Love this site and look forward to any responses

    Thanks
    You do not have the required permissions to view the files attached to this post.
    JohnSTI
     
    Posts: 11
    Joined: Thu Nov 12, 2015 11:52 am

    Re: ARC-FLASH Labeling question

    New postby Jerry Peck - Codeman on Thu Dec 10, 2015 3:13 pm

    JohnSTI wrote:1st question---Should this labeling (input/output V & I) be on the Utilities Transformer? or do I have to call and they have to supply this information?


    The label you are referring to is likely inside the transformer's locked cover. If you call the utility company, they may be able to provide that information from what they have on file for the transformer they installed. They may need to go and open the transformer's locked cover so you can take a photo of the label, but I suspect that they may have that information in a file for your installation.

    2nd question--- the only panels required to have the "Arc-Flash" labeling are panels containing voltages of 220/240 and over?


    From the 2014 NEC, 110.16 Arc-Flash Hazard Warning has this exception "in other than dwelling units", otherwise, if the equipment (see listed items) "are likely to require examination, adjustment, servicing, or maintenance while energized" shall be be marked with the warning.

    3rd and last question---Where an "Arc-Flash" label is required is a "Fault Current" rating label required also...


    Yes ... but ... yes, "Fault-Current" labeling is required ... but it is not dependent on an Arc-Flash warning - 2014 NEC, 110.24 Available Fault-Current, contains the same exemption as the Arc-Flash warning in 110.16: Service equipment "in other than dwelling units".

    It's easier to convince particular people that they have been in violation for years when I have more than just my opinion available.


    Provide the NEC code section requirements to them - make a copy of the page each of those sections in on and use the NEC as your backup supporting documentation, then let them argue with NFPA and the AHJ which adopted the edition of the National Electrical Code which was adopted. If your AHJ is not using the 2014 NEC, use the edition which is applicable locally, if none is adopted locally, use the most current edition, which, at this time, is the 2014 NEC.
    Jerry Peck - CodeMan
    AskCodeMan.com

    Construction and Litigation Consultant
    Construction Litigation Consultants, LLC.
    ConstructionLitigationConsultants.com
    User avatar
    Jerry Peck - Codeman
    Site Admin
     
    Posts: 1089
    Joined: Fri Dec 12, 2008 12:06 pm

    Re: ARC-FLASH Labeling question

    New postby JohnSTI on Thu Dec 17, 2015 4:07 pm

    Great response thanks just what I needed...
    JohnSTI
     
    Posts: 11
    Joined: Thu Nov 12, 2015 11:52 am


    Return to Electrical: Service Equipment, electrical panels, wiring, lighting, switches, receptacles, etc.



    Who is online

    Users browsing this forum: No registered users and 1 guest



    www.AskCodeMan.com