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Which Circuit Breakers Should Have Test according to NETA

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    Which Circuit Breakers Should Have Test according to NETA

    Hi guys,
    I need your help. Which Circuit Breakers Should Have Test according to NETA ? I mean sometimes there are a lot of little circuit breakers in Panelboards etc 20A. Should we test them also ?
    Thanks for help

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    Quote Originally Posted by changeabilities View Post
    Hi guys,
    I need your help. Which Circuit Breakers Should Have Test according to NETA ? I mean sometimes there are a lot of little circuit breakers in Panelboards etc 20A. Should we test them also ?
    Thanks for help
    Where I work we usually test circuit breakers 400A and above but I have done panelboard branch circuit breakers before when it's called for in the spec (typically government and data center applications).

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    Quote Originally Posted by SecondGen View Post
    Where I work we usually test circuit breakers 400A and above but I have done panelboard branch circuit breakers before when it's called for in the spec (typically government and data center applications).
    This is for acceptance testing by the way, I've also seen specs that call for "main breakers" only. For maintenance we usually secondary inject unless the customer requests primary, same 400A and above rule usually applies if customer has no idea what they want to test. Which application is this?

    NETA ATS and MTS both state that the owner/user is responsible for deciding which equipment to test.

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    ATS 4.1.4

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    MTS 4.1.3
    Last edited by SecondGen; July 24, 2018 at 06:38 PM.

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