• general articles
  • 4hv wiki article on 'Electrical safety'
  • pupman.com article on safety
• "a human being's nervous system does not sense the flow of potentially dangerous electrical currents above 15-20 kHz; essentially, in order for nerves to be activated, a significant number of ions must cross their membrane before the current (and hence voltage) reverses"

principles

• volts: 30 volts is what's considered the safe limit (below this, the body's resistance is high enough to prevent enough current from going through the body)
• amps: 100mA is where danger of fibrillation starts, but 10mA can really hurt