Connection between GND and Earth

Discussion in 'General Electronics Chat' started by Nissim, Nov 9, 2012.

  1. Nissim

    Thread Starter New Member

    Oct 6, 2012
    7
    0
    Hello there

    I am building an LED light box .
    The voltage input is 230Vac - The expected current is 7AC
    I am using MeanWell power supply 230vAC 350w
    I am wondering if I should make any connection between GND to Earth .

    I would appreciate an advice or an explanation

    kind regards
    Nissim
     
  2. t06afre

    AAC Fanatic!

    May 11, 2009
    5,939
    1,222
    If this is just some hobbyist project. I would say no
     
  3. ramancini8

    Member

    Jul 18, 2012
    442
    118
    If any part of the externals can conduct they should be connected to earth ground for safety.
     
  4. GetDeviceInfo

    Senior Member

    Jun 7, 2009
    1,571
    230
    your supply will be 'earthed' via the supply bonding conductor. Any greater metallic envelope should also be bonded to earth, or ground. The output of the supply is floating in respect to ground unless you tie to it, and there is no particular reason for doing that. On the contrary, the ground becomes more usefull as a shielding drain, which wouldn't be of concern in your project.
     
  5. Nissim

    Thread Starter New Member

    Oct 6, 2012
    7
    0
    Thank you very much for your reply.

    With respect to your comment "The output of the supply is floating in respect to ground unless you tie to it"
    I am wondering if for some reason the GND became 'noisy' , a connection ( short or via a resistor ) would drain it to Earth .

    Thank you in advance for your explanation
     
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