1. Create Your User Profile and Status Updates

    Arc Flash Forum members are invited to create a user profile. Let others know who you are, what you do and even add a picture or avatar of yourself. What are you up to? Let people in the arc flash and electrical safety community know with "status updates"!
  2. Welcome to the All New Arc Flash Forum

    Arc Flash Forum is a community where we help each other learn about arc flash and electrical safety. There is still much to be learned about arc flash, standards, PPE, studies and more and We need your HELP!

    If you have good information about Arc Flash - Post It! If you have a question about Arc Flash - Post It! If you can provide answers to Arc Flash questions - Post it!

    Sign up as a today member! Feel free to link to this site www.arcflashforum.com. Tell your friends. We want to help everyone be safe in the workplace!
  3. Bigger and Better!

    As you have no doubt noticed, the forum has been through quite an upgraded and looks and feels very nice! There are loads of new features and ways in which this site can now be even more useful to the community in learning about Arc Flash and Electrical Safety.

    Create your detailed user profile
    Add a profile photo of yourself
    Like the forum on Facebook
    "Like" users' posts
    Publish your articles in the library
    ...and much, much more!

    Learn More About the New Features Here

Working on section adjacent to Dangerous!

Discussion in 'Arc Flash Labels' started by RECS, Apr 20, 2009.

  1. RECS New Member

    The income section of a LV switchgear (line-side of main OCPD) has a incident energy of 65 cal/cm2 (Dangerous).

    The adjacent section (load side of OCPD) has a incident energy of 3 cal/cm2.

    The switchgear is open frame, so there is no barriers between both sections.

    What kind of label would you affix to this switchgear?

    Options:

    1. Only one for the whole panels (incoming and feeder sections) with the AFIE of 65 cal/cm2.
    2. Dual label, for incoming section 65 cal/cm2 and for all feeder sections 3 cal/cm2.
    3. Other solution.

    The problem arises to be so close to a high incident energy area using only PPE of 3 cal/cm2.

    Thanks.
  2. haze10 Well-Known Member

    Without barriers you would have to use the higher rating out to an arc flash boundary that equals the lower rating.
  3. Gary B Well-Known Member

    According to some interpretations operating the main breaker would be illegal because you are above 40Cal/cm2. Working so close is probably no safer and could be more dangerous.

Share This Page