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| Remember to unplug your machine |
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| yaksplat:
...anytime that you're working on it :angry: Last night I was wiring in a relay to disable my audio on the machine (for when it's used as an htpc). I'm just finishing the connections on the 12V side and I had the machine powered off, but not unplugged. I let go of a wire after crimping a terminal on to it and the wire springs across the inside of my cab, landing on a hot 120V connection on the relay. A nice blue arc pops. I unplug the machine, finish up, hoping that nothing was damaged. Plug it back in, turn it on, and nothing.... Fuse blew on the switch on the back of the cabinet and of course I have no spare fuse of that size. So I bypass the switch and just use an external power strip for the connections and I try again. Still nothing. Power supply is dead. Fortunately I have all new computer parts coming today for the machine as I had planned on replacing them. But now I'm hoping that nothing else was damaged. So after I get the new computer in, I'll be adding some non-conductive shields over those exposed terminals, or at least some blobs of hot glue. Hopefully someone learns from my stupidity. :banghead: |
| spoot:
Ouch. But I'm guessing alot of us here has done the same thing. :cheers: |
| lilshawn:
we all learn one way or another. glad you are still alive though! |
| drventure:
Ouch. --- Quote ---But I'm guessing alot of us here has done the same thing. --- End quote --- What? Well I've never! :-[ Here's hoping it's nothing more than a PS. |
| yaksplat:
--- Quote from: drventure on January 31, 2013, 10:06:34 am ---Here's hoping it's nothing more than a PS. --- End quote --- Well, I'll find out later, as all of those parts were going to become a computer for the kids. I've had a PS go, that took out the MOBO that took out the memory and CPU. Not fun damage to chase. But a new PS, still doesn't work. Buy a new MOBO, still nothing. Buy new CPU, memory error. Replace the memory and everything works. Then the result is building an old computer out of new parts. --- Quote from: lilshawn on January 31, 2013, 10:04:55 am ---glad you are still alive though! --- End quote --- 120V won't really kill you unless you seriously arc across your heart. So that's the reason that you should never work with both hands on 120V. From electricians that I've worked with: 120V hurts 220V grabs and kills you 480V throws you and leaves you sore So from that point of view, 220vac is the most dangerous. |
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