1. New to Christmas lighting? Get started with the AusChristmasLighting 101 Manual:
    auschristmaslighting.com/wiki/AusChristmasLighting-101

Wiring power supplies

Discussion in 'Power Supplies' started by Habbosrus, Aug 31, 2015.

  1. Habbosrus

    Habbosrus New house (again) 2017

    Joined:
    Dec 5, 2012
    Messages:
    750
    Likes Received:
    0
    Location:
    Swansea, NSW
    Find Me On:
    I was just reading a thread on DIYC regarding wiring of power supplies here. Post #4 shows a picture where it appears a wire has been connected between AC Earth and V-. I don't connect mine this way and I'm sure I've read on here that this method is incorrect or at least, not entirely correct. I thought ac and dc should be kept completely separate. I understand things may be different between US and AUS. However, power is an extremely dangerous area many of us novices/hobbyists tinker with, especially over the coming months. I am hoping our more knowledgeable members can provide some advice. Many new members look at at recent posts so I thought it a good idea to post a new topic.
    I'm happy to be wrong in my thinking, but I'd be happier to know posting this has helped keep others safe :D
     
  2. AussiePhil

    AussiePhil Dedicated Elf Administrator

    Joined:
    Jun 20, 2009
    Messages:
    1,391
    Likes Received:
    0
    Location:
    Canberra, ACT, Australia
    Find Me On:
    AC and DC MUST be keep isolated.

    DO NOT connect AC earth to DC negative.

    I could head off on multiple reasons its bad and also reason it really may not matter but ultimately the advice is DON'T do it.
     
  3. multicast

    multicast Senior Elf Generous Elf

    Joined:
    Jul 13, 2013
    Messages:
    715
    Likes Received:
    7
    I echo Phils comments.


    While there are a few times when you can and need to join GND and Earth, they are rare and outside of the scope of blinky. And when you do it, you need to know what you are doing, and provide other protection mechanisms.
    
    The main reason for not doing it, is pretty simple. Its Unsafe, and it might kill you. Do you need another reason.
    [SIZE=78%] [/SIZE]
     
  4. i13

    i13 Senior Elf

    Joined:
    Jul 5, 2013
    Messages:
    775
    Likes Received:
    6

Share This Page