Two On A Big Ocean The Story of the First Circumnavigation
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lv-ab: Re: Worthless Circuitbreakers

From: (no name) (no email)
Date: Tue Sep 02 2003 - 18:41:53 EDT

  • Next message: ahmet erkan: "Re: lv-ab: Re: Worthless Circuitbreakers"

    I wrote:

    >> If the c'bkr is damaged so that it will not operate correctly in
    >the
    >> process of clearing a fault, that is acceptable. The important thing
    >is
    >> that the fault has been cleared.

    nathan moser writes:

    >whoa. am i reading this correctly?
    >
    >it sounds like you're saying that if (one of the plastic molded cased,
    >
    >on-off switch type, e.g. ancor brand) circuit breakers trip, that
    >you'd
    >better a) find the reason the breaker tripped (of course), and b)
    >immediately replace the breaker. what is "damaged so that it will not
    >
    >operate correctly"?
    <snip>

    Not to worry.

    This is not quite the "Sky is falling" situation.

    If the c'bkr fails, it will fail in the "off" or open circuit position.

    The point of the comment was to point out that a c'bkr does not always
    survive in working condition after clearing a fault, not to cause undue
    alarm.

    BTW, the Ancor c'bkrs you reference are NOT thermal-magnetic c'bkrs
    described in this and previous posts commonly found in shore side
    installations.

    Rather they are of the magnetic-hydraulic type designed specifically for
    marine installations.

    HTH

    Lew
    S/A: Challenge, The Bullet Proof Boat (Under Construction in the
    Southland)
    Visit <http://home.earthlink.net/~lewhodgett> for pictures

    There are no problems, only varying degrees of challenging opportunity.

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