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Logic problem in OSG - trivial

Ziggie
Page 79 OSG (blue edition)


Lcn is max fault current .......although the breaker may no longer be usable.

Lcs is max fault current .......can interupt safely without loss of performance.


.........


For domestic installations, the PFC is unlikely to exceed 6kA , up to which value the Lcn will equal Lcs.


usable , maybe usable, certainly usable?


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    As you may have guessed , I worked in a large explosive factory for several years and there were a number of incidents. 


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  • 0
    As you may have guessed , I worked in a large explosive factory for several years and there were a number of incidents. 


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