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    #61
    Re: Kind of a different question...

    Originally posted by eccerr0r View Post
    If you plug it into a GFCI outlet, short the case of the laptop to ground, and it trips, then you know you have a problem...
    This is a great point I would not have thought about doing this to find out if you had an issue with stray voltage on a device to do this to find if it is going to be an issue or not

    switching power supply that only have a two wire connector I find is a little stupid in my estimation because of what you have experienced that you might feel a tingling sensation on a metal part of the device is not acceptable in my book

    Yes this might be a little off topic but I have also seen this happen as well

    You can also have this on air conditioning compressor that have an issue with the varnish breaking down on the windings and leaking voltage into the oil and when it first starts happening it sometimes not enough to trip some GFCI outlets but when it gets worse then it will trip the GFCI outlet that someone has a bad grounding pin or has cut off the grounding pin on the power supply cord
    Last edited by sam_sam_sam; 11-20-2021, 06:24 AM.
    9 PC LCD Monitor
    6 LCD Flat Screen TV
    30 Desk Top Switching Power Supply
    10 Battery Charger Switching Power Supply for Power Tool
    6 18v Lithium Battery Power Boards for Tool Battery Packs
    1 XBox 360 Switching Power Supply and M Board
    25 Servo Drives 220/460 3 Phase
    6 De-soldering Station Switching Power Supply 1 Power Supply
    1 Dell Mother Board
    15 Computer Power Supply
    1 HP Printer Supply & Control Board * lighting finished it *


    These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10%

    1 Over Head Crane Current Sensing Board ( VFD Failure Five Years Later )
    2 Hem Saw Computer Stack Board

    All of these had CAPs POOF
    All of the mosfet that are taken out by bad caps

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      #62
      Re: Kind of a different question...

      Originally posted by sam_sam_sam View Post
      switching power supply that only have a two wire connector I find is a little stupid in my estimation because of what you have experienced that you might feel a tingling sensation on a metal part of the device is not acceptable in my book
      actually it can kill you.
      if your working outdoors on an aluminium ladder fixing something that is powered like this then it's enough current to throw you off.

      i have had several shocks like that from tv antenna's and a sat dish!!
      fucking 2 wire mains cords mean the "earth" on the cables is 340v relative to the ground the ladder is standing on!!!

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