14.1 General measures for safety


Research has shown that voltages below 50 V a.c. do not generally cause problems. From 50 V up to 1000 V a.c. (which is termed Low Voltage), the problems will be in direct relationship to Ohms Law which states ‘the greater the voltage for a given resistance, the higher the current’. However, it must be realised this is an extremely simplistic view and the human body is quite complex but is generally considered mostly resistive. An electric shock results from the victim touching a part which is live or charged with electricity so that their body completes the electrical circuit to ground. At higher voltages, actual contact is not necessary because the current can jump appreciable distances. ...

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