View Full Version : Danger 5v!

10-10-2008, 09:32 PM
They say confession is good for the soul... so here goes.....!

I took a shortcut last night and twisted a couple of wires together to power a board I'm working on with 5V from a converted PC supply. While I was away from the desk, the bare wires touched. 5V short circuit with a heap of current.

"Honey, I crossed the streams..."

See pic below for what can happen if you are careless and let a large number of electrons flow in a loop through some figure 8 cable. Don't try this at home.

I have a nice straight burn mark on my right thumb from picking this up in the dark when I returned to the workbench and wondered why the lights weren't flashing.

Careless work... late at night. I know better. Um, its a bit embarassing to be honest!:oops:

This time no real lasting damage done, but its a cautionary tale and a good example of human error.... (mine in this case!).

The moral of this tale? Please everyone be very very carefull with ALL the power ALL THE TIME !!!!

(and insulate your inline connections!?)


10-10-2008, 10:38 PM

10-10-2008, 11:38 PM
Now that's ugly.

I've built a couple of shared neutral extentions lately. In testing, I found I had one reversed... Testing is a good thing!

10-11-2008, 01:44 AM
This shows you that electricity can be dangerous, even at low voltage!