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    • Join Date: Aug 2007
    • Posts: 6
    #1

    Question Capitalization for electrical units of measure

    If I am writing about electrical units of measure, how should I write the following in a technical manual?

    ph=phase
    amps=amperes

    3ph, 100amps (all lowercase)
    3PH, 100AMPS (all uppercase)
    3Ph, 100Amps (first letter uppercase)
    3-ph, 100-amps (with a hyphen)
    3 ph, 100 amps (with a space)

    I guess the combinations could be several. I just want to know what the proper way to write it is.

    Thanks,
    Marlon

  1. Ouisch's Avatar
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    • Join Date: Mar 2006
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    #2

    Re: Capitalization for electrical units of measure

    According to the Society of Mechanical Engineers Style Guide, you would use lower case letters for "amperes," "amps," and "phase."


    • Join Date: Aug 2007
    • Posts: 6
    #3

    Re: Capitalization for electrical units of measure

    Thanks! I am wondering about the spacing...should there be a space between the number and amps, should there be a hypen, or should the number and amps run together?

  2. rewboss's Avatar

    • Join Date: Feb 2006
    • Posts: 1,552
    #4

    Re: Capitalization for electrical units of measure

    Yes, there should be a space. "Amps" is a word: you are talking about one hundred amps (or ampères) in the same way that you talk about one hundred potatoes or one hundred cars. You would not write "100cars".


    • Join Date: Aug 2007
    • Posts: 6
    #5

    Thumbs up Re: Capitalization for electrical units of measure

    Thank you for your time!

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