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Is 260-262V mains voltage safe for modern electronics?

Discussion in 'Hobby Electronics' started by Jeßus, Jan 10, 2014.

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  1. Jeßus

    Jeßus Guest

    Just as per subject heading...

    Trying to ascertain whether a friend's mains voltage is the reason
    they have lost a few electrical items lately - mainly amplifiers and
    computer PSUs. Their mains voltage is as in the subject heading... TIA
    for any advice.
     
  2. Sylvia Else

    Sylvia Else Guest

    It's within limits for some Australian states, just. It doesn't seem
    probable that your friend would have multiple devices that were running
    so close to their ultimate limits.

    If the mains supply is implicated at all, it seems more likely that the
    gear was damaged by voltage spikes. Installing surge arrestors would be
    a good start.

    Sylvia.
     
  3. Jeßus

    Jeßus Guest

    Thanks Sylvia. To elaborate, this is in Tasmania and my mate recently
    had a solar/grid installation. The 'electrical inspector' came out and
    took measurements - he reckons the solar array is adding 1 to 2v above
    the 'normal' 240v and the rest is coming from the grid itself.
     
  4. Jeßus

    Jeßus Guest

    Limits in Tas are 207-253v
    www.ewh.ieee.org/r10/nsw/subpages/history/Australian-AC-Line-Voltages.pdf
     
  5. Phil Allison

    Phil Allison Guest

    "Jeßus"

    ** Any of these ( 240V to 220 V step down) should remove the your Tasweigian
    friend's worry:

    http://www.tortech.com.au/step-down-transformer-australia/european-transformers-to-australia

    The 600W model ( $154 plus delivery) should do all the electronics in an
    average house.

    Only 2.5kgs so freight ought to be cheap enough from Sydney.



    ..... Phil
     
  6. Sylvia Else

    Sylvia Else Guest

  7. Sylvia Else

    Sylvia Else Guest

  8. **Depends on where it is manufactured. Aussie built stuff (which is
    destined for WA) would be safe enough. Anything made in China is a
    crap-shoot. Some is reasonable, some is utterly hopelessly under-rated
    for even 240VAC. I've measured some, admittedly, low volume, Chinese
    rubbish, where power transformer saturation occured at 200VAC.
     
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