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electrical diagram symbols

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  1. JtotheJ is offline Junior Member Pro Subscriber
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    electrical diagram symbols

    https://www.google.com/url?sa=i&rct=...18658291787989

    why does the test ask what the symbol above is but it's not in the electrical one line diagram symbols?

    https://testguy.net/content/219-Elec...iagram-Symbols

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  3. EEBSMSPE96 is offline Junior Member Pro Subscriber
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    There are more Electrical Symbols than stars in the Sky

    Quote Originally Posted by JtotheJ View Post
    https://www.google.com/url?sa=i&rct=...18658291787989

    why does the test ask what the symbol above is but it's not in the electrical one line diagram symbols?

    https://testguy.net/content/219-Elec...iagram-Symbols
    I've been doing this for 30 years and I've never seen one document with all possible electrical symbols in it. It seems that every Utility, Industrial Plant and Engineering Firm has their own unique library of electrical symbols with many different variations of standard symbols in it. Even IEEE Standard 315 for electrical and electronics graphic symbols doesn't have every electrical symbol that I've seen used in my 30 years.

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