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Lightning Protection Designs

Discussion in 'Commercial Electrical Codes' started by north star, Feb 14, 2018.

  1. north star

    north star Sawhorse

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    Greetings all !

    I have a military project where the RDP has submitted "very minimal"
    information related to installing some Lightning Protection suppressors
    and associated components.......The project is located in the
    Southeastern U.S.


    QUESTION # 1: When Lightning Protection is proposed for projects
    in your jurisdiction; whether they are Residential or Commercial, what
    requirements do you have that provide you with information enough
    to review for compliance [ i.e. - plans, ...a listing of all components,
    ...a listing of all applicable Standards & Codes, ...that any information
    submitted to you be designed by an RDP, or one who simply draws
    plans, or an Electrical Contractor, or a homeowner who has been
    down to the local Big Box Store, or other ] ?


    QUESTION # 2: How do you determine that Lightning Protection is
    "required" vs. "recommended" ?........Is Lightning Protection really
    needed in your jurisdiction, on various projects ?


    QUESTION # 3: If Lightning Protection is being recommended by
    installing Suppressors, how does an RDP or anyone else arrive at
    the type and size of Suppressors to install ?


    QUESTION # 4: There are some "audible warning devices" out
    in the market, that sound when the conditions in the atmosphere
    change, similar to a Tornado Early Warning Device........Are these
    audible devices credible, and should they be part of a designed
    Lightning Protection System ?


    In a basic search on the World Wide Webby, ...the Southeastern
    U.S. and Florida specifically, has the highest number of lightning
    strikes in the U.S.......If lightning protection is really needed, how
    come more structures do not have some type of protection ?


    Thanks for any input !

    < =
     
  2. cda

    cda Sawhorse

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    Cost?

    The ahj does not require it?

    The question do you do complete exterior building protection with the rooster on the roof,

    Or just wiring system protection??

    From what I hear either may or may not work.
     
  3. north star

    north star Sawhorse

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    $ ~ $

    The military is the AHJ, and their Leadership has asked for a review
    of plans & specs. on some "proposed" Lightning Protection, on some
    electrical systems & components at a Weapons Firing Range.
    Specifically, for the Electronic Systems that operate & control
    automated targets [ i.e. - a computer system, associated cables,
    various control boxes, etc. ].

    The submitted plans have one line regarding the "installation of surge
    protection devices ( SPD's ) and misc. associated cables".

    I am gathering information to respond with Comments to the RDP.

    $ ~ $
     
  4. Sleepy

    Sleepy Registered User

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    Check out UFC 3-575-01, Lightning and Static Electricity Protection Systems. There is even a section on protection for target control systems.
     
    north star likes this.
  5. north star

    north star Sawhorse

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    $ ~ $

    Thanks **cda** & **Sleepy** for your input ! :cool:

    $ ~ $
     
  6. cda

    cda Sawhorse

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    Dang Uncle Sam has a plan for everything
     

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