{"id":210,"date":"2016-02-17T22:47:25","date_gmt":"2016-02-18T05:47:25","guid":{"rendered":"http:\/\/blastedscience.com\/?p=210"},"modified":"2016-02-20T23:17:54","modified_gmt":"2016-02-21T06:17:54","slug":"how-to-avoid-being-killed-by-electricity","status":"publish","type":"post","link":"http:\/\/blastedscience.com\/how-to-avoid-being-killed-by-electricity\/","title":{"rendered":"How to Avoid Being Killed by Electricity"},"content":{"rendered":"
Electricity is really cool. It can also be extremely dangerous. Obviously, this shouldn\u2019t discourage you from playing with high-powered electrical devices. It\u2019s a good idea to know what you\u2019re getting into, though. When is electricity dangerous?<\/p>\n
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You could just go read this PDF<\/a>, but should you really trust the government with your life? Blasted Science has plenty of experience with electricity. Trust us.<\/p>\n It takes a surprisingly small amount<\/a> of electricity to kill you. According to Adam Savage<\/a>, all it takes is 7 milliamps for three seconds. That\u2019s tiny. An LED would barely light up with that amount of current. And since the internal resistance of the human body is about 300 ohms<\/a>, it would only require 2.1 volts to kill. That’s only slightly more than a AA battery.<\/p>\n Fortunately, our bodies have one big protection to electricity: skin. Dry skin has a resistance of 100,000 ohms to 600,000 ohms<\/a>. You might think this means that you\u2019d need to be shocked with at least 3430 volts before your life is at risk, but it’s not that simple.<\/p>\n The above calculation applies only to dry skin. Wet skin is much more conductive. Voltages as low as 50 volts can be dangerous when your skin is wet.<\/p>\nHow Much is Lethal?<\/h3>\n
Breakdown Voltage<\/h3>\n