User Tag List

Page 3 of 3 FirstFirst 1 2 3
Results 21 to 26 of 26

Thread: Closing a CB for the first time

  1. #21
    Join Date
    May 2007
    Location
    Westminster, MD
    Posts
    647
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Jraef View Post
    In Table 130.7(C)15(A)(a) where they provide the list of appropriate PPE for tasks, it says the following under the task of operating a circuit breaker:
    Under the column heading "Equipment Condition", no additional PPE is required only if;
    But, under the following conditions, yes, PPE IS REQUIRED if:

    Should there be an injury and a door WAS closed, an OSHA inspector is going to demand DETAILED RECORDS of whether the equipment was properly installed and maintained. The reality is, almost NOBODY has records like that.

    And BEFORE that, they provide this "Informational Note"
    Jraef, Sir, You are one 70E Code cycle off!
    70E 2018 now has Table 130.5(C) Estimate of likelihood of Occurrence of an Arc Flash incident ... and that table defines Normal with 6 conditions that adds "used in accordance with instructions... to the 2015 list.

    NFPA 70E, Standard for Electrical Safety in the Workplace is a National Consensus Standard document and as such it's in effect when issued. Unlike NFPA 70 NEC which is voted in by jurisdictions. The logic is that if a Safety improvement has been recognized it's in effect right away.
    Of course 70E is not the law, but, (and I think you may have said this in a post some time ago), if there's an electrical fatality at your facility and OSHA shows up, if you don't adhere to 70E, the whole focus of the investigation will turn to comparing your practice to the 70E standard, and good luck with that.
    And the newest wrinkle to Electrical Safety is the release of IEEE 1584-2018, referenced of course by NFPA 70E, which changes the way arc flash studies are conducted. I welcome it because it's confusing enough that it'll keep me gainfully employed for years to come!

  2. #22
    Join Date
    Mar 2007
    Location
    Valdosta, GA
    Posts
    4,403
    Mentioned
    0 Post(s)
    Tagged
    1 Thread(s)
    I’ve always felt that statistically, as an electrician, it’s more likely to blow up on you than anyone else.


    Sent from my iPhone using Tapatalk
    Brought to you by Carl's Jr.

  3. #23
    Join Date
    Jul 2008
    Location
    North Of Tampa Fl
    Posts
    455
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    How do you not stand in front of a I-line 480 v , 600 amp breaker if you have to close it ? Do they make a remote operator for a I-Line style breaker ?

  4. #24
    Join Date
    Mar 2003
    Location
    Vermont
    Posts
    2,030
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    They make a 'handle' that allows some leverage , but it's usually not very long ~RJ~

  5. #25
    Join Date
    Feb 2005
    Location
    Charlotte, NC
    Posts
    6,812
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Davebones View Post
    How do you not stand in front of a I-line 480 v , 600 amp breaker if you have to close it ? Do they make a remote operator for a I-Line style breaker ?
    Yes, page 108

    https://www.cbsarcsafe.com/wp-conten...2015_lores.pdf

  6. #26
    Join Date
    Dec 2007
    Location
    NE Nebraska
    Posts
    39,617
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Davebones View Post
    How do you not stand in front of a I-line 480 v , 600 amp breaker if you have to close it ? Do they make a remote operator for a I-Line style breaker ?
    Don't laugh and it probably isn't done all that much, but standing off to side and use something for a push stick will put you further away from potential blast than using your bare hand directly on the handle.
    I live for today, I'm just a day behind.

Posting Permissions

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