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  1. C

    Circuit Wire For Long Run

    I'm still getting the hang of this.
  2. C

    Circuit Wire For Long Run

    What about 150*C?
  3. C

    Circuit Wire For Long Run

    Last question- I promise ? Any idea what the AC R would be at 150*C and 250*C? I'd like to use that as a basis to calc final short circuit conditions.
  4. C

    Chint MCBs

    Honestly, when I see them I think of this exact breaker.
  5. C

    Chint MCBs

    The fact they might be substandard.
  6. C

    Chint MCBs

    What do others think of these MCBs? Are they real? I'm seeing them on Amazon at questionably low prices.
  7. C

    Circuit Wire For Long Run

    Will this work with all wires sizes from 2.08mm2 to 1013mm2?
  8. C

    Circuit Wire For Long Run

    So my ignorance will show, but if I type in 17.7% of 2.0 in Google I will have the 30*C Ac resistance of 12 gauge wire?
  9. C

    Circuit Wire For Long Run

    Alright, because in all honesty I'm trying to get these values down to 30*C:
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    1617533337495.png

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  11. C

    Circuit Wire For Long Run

    Well, even in an IT system you still need to open device under a multi phase fault. Thank you for explaining this to me, but I still think disconnection should not be accomplished via RCD, as RCDs can fail.
  12. C

    Circuit Wire For Long Run

    I take this to mean an RCD for disconnection is a no-no?
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    1617481375563.png

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  14. C

    Circuit Wire For Long Run

    I should know about this link! ???? Anyway, do you know of a table taking skin effect into account? For a while I've desperatly been searching for an AC resistance at 30*C.
  15. C

    Circuit Wire For Long Run

    Oh man, you guys have some serious brains! :)
  16. C

    Circuit Wire For Long Run

    Agreed. Can you post the link to the 30*C AC resistance? The NEC is only giving me 75*C.
  17. C

    Circuit Wire For Long Run

    Pure awesome! Though I would use -5% instead of -10% but it works either way. Yup, I noticed that two. US breakers keep giving me a much lower Zs which kept throwing me off. Still confuses me to be honest. Basically most US breakers are a type E of F, if such a category existed after type D...
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    1617454064161.png

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  19. C

    Circuit Wire For Long Run

    By any chance, would you know the max Zs for this 15 amp MCB? https://library.industrialsolutions.abb.com/publibrary/checkout/DES-079?TNR=Time%20Current%20Curves%7CDES-079%7CPDF&filename=DES079.pdf
  20. C

    Circuit Wire For Long Run

    You kidding? I love doing this all by hand. Software doesn't teach you theory.

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