Introduction to Electrical Engineering

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Pro: ČEKO IMPORT a.s.
Vydal: České vysoké učení technické Praha Autor: Vladimír Kůla, Michal Kříž

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1.3 above Probability ventricular fibrillation above % 1) For duration current-flow below ms, the limit for the body current for line remains constant value 200 mA.1 4.1.1. currents (15 100 Hz) persons Description zones: .EFFECTS CURRENT PASSING THROUGH THE HUMAN BODY 21 4., the level danger varies depending the frequency: low and high frequencies are less dangerous than the technically applied frequencies and (see Figures 4.c.1 Time/current zones effect a.c.c.1. Zone designation Zone limits Physiological effects AC 0,5 mA a Usually reaction AC Usually harmful physiological effects AC Usually organic damage expected AC above Dangerous pathophysiological effects: cardiac arrest, breathing arrest and severe burns AC 4. more dangerous than d. regards a. Figure 4.4). Principles There difference between the hazard associated with direct (d.2 Probability ventricular fibrillation about % AC 4. EFFECTS CURRENT PASSING THROUGH THE HUMAN BODY 4.c.1 Probability ventricular fibrillation about % AC 4.c.c.): a.) and that with alternating current (a