Ok, I just had this idea that I didn't do enough on safety, relying too heavily on QADV, so I whipped out the IRTS disk and did a bit more study. A few interesting things turned up.
One is that the human body has a low resistance, of around 500 ohms. Voltages of as little as 30 to 50 volts can kill, but it's the current that usually does the job. Remember this:
"It's the volts that jolt and the mils that kill". That should help you remember it.
If you have to ground something for lightning strikes, make sure the rods are between 5 and 8 feet long.
Oh, and if you need to stay a mast, it must be stayed at a height of 60-80% of its overall height.
Showing posts with label Last minute study cramming questions lightning safety resistance volts current. Show all posts
Showing posts with label Last minute study cramming questions lightning safety resistance volts current. Show all posts
Monday, October 5, 2009
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