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Battery im getting for my car is 3600 amps peak. So far, I've been shocked by mains wiring three times, shocked by two power supply capacitors (one from my computer, one from my home theatre amp), and once by a phone line.Quote:
Originally Posted by Celeron Gamer
By itself, not through intact skin. It certainly can cause burns, of course, and it can deliver a shock if you cut yourself on powered wiring, but the voltage is too low to put much current through skin.Quote:
Sorry to necro, but AFAIK isn't those amps on car batteries friggin' huge? It could be possible to be electrocuted by car bat right?
With the help of an external circuit, it's possible to generate millions of volts from a 12v battery.
On a side note, I remember a time many years ago when I helped my friend Caitlin Williams install a 48v battery for a server room. She said that the "nipples" are covered by plastic caps because it could vaporise(!) a wrench if it shorted the battery. It's gigantic, though (it was about as big as a file cabinet and weighed about 500 pounds). Thankfully, it was on sliders so we just had to push it.
Well forgot to ground the case and well... electricuted myself again yesterday. Thankfully it was from fingertip to armpit so nothing dangerous really. Can't believe I was playing with live circuit again -_-;
heh. I created a small explosion not long ago from accidentally shorting 120V AC
Well this is old but non the less deadly serious, ALL WAYS USE SOME SORT OF BREAKER OR FUSE on the system its self. I personally use a combo of fuses and breakers.
All ways ensure ground lines with an impediance no larger then 2 Ohms.
Hehe.. Plasma balls are neat looking.:DQuote:
Originally Posted by Celeron Gamer
On a more serious note, great topic and nice to see it brought back to the top. Safety first. Always.:)
~S~
It is the MEN (multiple earthed neutral) electrical system which gets people killed. I don't like it. It means that eveybody has one foot in the grave. The earth is one half of the power system, so it only takes contact with the hot wire to get a zap. For instance if you use a isolation transformer there is no ground - you are still producing an AC voltage waveform but you can safely touch either secondary terminal because there is no potential (voltage) to ground.
If the neutral wire wasn't joined to earth then a shock can only occur is you complete a path between phase (hot) and neutral. If a live wire shorted to case, the case itself would not exhibit a potential to earth, and hence not be a shock hazard if touched. There are odd failure scenarios within a non MEN system.
There are merits to the MEN system but I see it being more dangerous than helpful.
Also, inductors don't hold charge. An inductor will create a voltage spike in the opposite polarity when the voltage is disconnected (back EMF). Car batteries can delivery lots of amperage but lack the voltage to push any significant current through you.
PS// NZ electrical specs call for not more than 1ohm for the ground line and insulation resistance of at least 1 Megaohm