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wall outlit ground

greenwald1818
greenwald1818 over 11 years ago

hi,

 

     i am building a coil gun. i have 1 400v capacitor to test it out for now, and i am charging it with a 12v wall adapter( i also have a 31v adapter from an hp printer), and i need to know when i fire the gun will it be safe if there is 400v+ going back through the ground plug of the adaptor. my specialty is computer hardware so im new to this kinda stuff.

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  • jw0752
    0 jw0752 over 11 years ago

    Hi Alex, Your capacitor will only charge to the voltage that is put into it by your adapters. 12 volts in one case and 31 volts in the other. There should be no current going back through the ground plug of your adapter. The 400 volts that is written on the capacitor is just a warning that this is the maximum voltage that can be applied without damage to the capacitor. Anything over 35 volts is considered potentially dangerous. A capacitor charged to 100 volts or above can cause burns and death if you get a shock from it in the wrong way. I would approach this project only with the help of someone who has experience with high voltage.

    John

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