11/10/2022 0 Comments Electrician handbook![]() ![]() ![]() RESUSCITATION FROM ELECTRIC SHOCK By Frederick Koliz, MDġst. Care should be exercised to prevent the 2 conductor ends from touching each other at the tongue, for it they do a spark can result that may burn. Where a terminal of the battery is grounded, often a taste can be detected by standing on moist ground and touching a conductor from the other battery terminal to the tongue. With voltages of 4 or 5 volts, due to as many cells of a battery, it is best to test for the presence of voltage by holding one of the bared conductors in the hand an touching the other to the tongue. The taste is due to the electrolytic decomposition of the liquids on the tongue which produces a salt having a taste. If voltage is present a peculiar mildly burning sensation result, which will never be forgotten after one has experienced it. Where the voltage is very low, the bared ends of the conductors constituting the 2 sides of the circuit are held a short distance apart on the tongue. The method is feasible only where the pressure is but a few volts and hence is used only in bell and signal work. The presence of low voltages can be determined by testing. (This and the several paragraphs that follow are taken from Electrical Engineeringġ59. Use the method with caution and be certain that the voltage of the circuit does not exceed 250 before touching the conductors. Which are the outside wires and which is the neutral wire of a 115/230 volt three wire system can be determined in this way by noting the intensity of the shock that results by touching different pairs of wires with the fingers. Therefore, the method is not feasible in some cases. Some men can endure the electric shock that results without discomfort whereas others cannot. This method is safe where the voltage does not exceed 250 and is often very convenient for locating a blown-out fuse or for ascertaining whether or not a circuit is alive. McGraw Hill Book Company, Inc, New York and London 1942Įlectricians often test circuits for the presence of voltage touching the conductors with the fingers. The following is from The American Electricians Handbook (1942) A Reference Book for Practical Electrical Workers. ![]()
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