Page 3 of 4 FirstFirst 1234 LastLast
Results 27 to 39 of 50

Thread: L1 and L2!!

  1. #27
    Join Date
    Nov 2011
    Location
    texas
    Posts
    40
    Post Likes
    Thread Starter
    Quote Originally Posted by snewman24 View Post
    If we're still talking about the circuit below, then for purposes of how the motor circuit works there isn't any difference. That circuit would usually be a 240V single phase circuit, where "line" is L1 & the other "line" is L2 and both are "hots" and there is no neutral.

    If the compressor were rate for 120V instead, one "line" would be L1, and the other "line" would be Neutral, "N", because it's connected to the center tap at the transformer, but for all practical purposes nothing has changed except the voltage.

    Don't get hung up on the term "neutral". It's a power wire just like L1 is. It brings power into the run cap just like L1 does. Power comes in thru L1 and leaves thru N, and it also comes in on N and leaves thru L1, alternating back and forth.

    Thank you very much. I never really had a thought l1 and l2 had a relevant difference in voltage or function of each other, but I needed to ask. But, y'all have pretty much cleared up the differences between 'hot' and 'neutral'.

  2. #28
    Join Date
    Nov 2011
    Location
    texas
    Posts
    40
    Post Likes
    Thread Starter
    Because of that small lesson alone I'm able to read pretty much any circuit in my book now.

  3. #29
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    28,397
    Post Likes
    Great!
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

    AOP Forum Rules:







  4. #30
    Join Date
    Feb 2017
    Posts
    9
    Post Likes

    No

    Quote Originally Posted by timebuilder View Post
    I'm not sure what you have been told, but throw away any ideas about one side of a circuit having one function or another, versus the other side off the circuit.

    The ENTIRE circuit has current movement when energized, and the ENTIRE circuit loses current movement when de-energized.
    If you believe that, design your metallic lamp with the power switch on L1 and then touch your lamp. You will learn that only part of your circuit has current... o.O

  5. #31
    Join Date
    Feb 2017
    Posts
    9
    Post Likes
    Switches always go on the neutral side.

  6. #32
    Join Date
    Mar 2013
    Location
    Billington Heights, NY
    Posts
    11,004
    Post Likes
    Quote Originally Posted by wickedchild View Post
    Switches always go on the neutral side.
    huh, wut?
    Experience - knowing when to get the hell out of the way and plug your ears. "Don't be a sissy. Turn it on!"
    Poodle Head Mikey - "the world is well populated with the unknowing and the uncaring and the stupid."

  7. #33
    Join Date
    Feb 2017
    Posts
    9
    Post Likes
    nice reply... yes what.

  8. #34
    Join Date
    Feb 2017
    Posts
    9
    Post Likes
    lol sorry had a brain fart. hot side! hot side!

  9. #35
    Join Date
    Feb 2017
    Posts
    9
    Post Likes
    I said L1 first! ...

  10. #36
    Join Date
    Mar 2013
    Location
    Billington Heights, NY
    Posts
    11,004
    Post Likes
    nice save
    Experience - knowing when to get the hell out of the way and plug your ears. "Don't be a sissy. Turn it on!"
    Poodle Head Mikey - "the world is well populated with the unknowing and the uncaring and the stupid."

  11. #37
    Join Date
    Feb 2017
    Posts
    9
    Post Likes
    Strange that I can't delete or edit posts?

  12. #38
    Join Date
    Mar 2013
    Location
    Billington Heights, NY
    Posts
    11,004
    Post Likes
    because you're a guest
    Experience - knowing when to get the hell out of the way and plug your ears. "Don't be a sissy. Turn it on!"
    Poodle Head Mikey - "the world is well populated with the unknowing and the uncaring and the stupid."

  13. #39
    Join Date
    Feb 2017
    Posts
    9
    Post Likes
    Well feel free to delete all of this. It isn't very helpful. Remember kids, switches and fuses go on L1, the hot side.

Page 3 of 4 FirstFirst 1234 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Related Forums

Plumbing Talks | Contractor MagazineThe place where Electrical professionals meet.