Comply with a (yet to be developed) authoritative NZ specific set of Power Coordination hazard voltage limits, calculated from IEC on a similar. IEC publication updated in defines four zones of current- magnitude /time-duration, in each of which the pathophysiological. IEC TS Effects of current on human beings and livestock -. Part 1: General aspects. • IEC TS Effects of current on.
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Electrical iex are caused by overloads, short circuits and earth leakage currents, but also by electric arcs in cables and connections. From Wikimedia Commons, the free media repository.
Basic protection Fault protection. The protection of persons against electric shock in LV installations must be provided in conformity 600479-1 appropriate national standards, statutory regulations, codes of practice, official guides and circulars etc. The degree of danger for the victim is a function of the magnitude of the current, the parts of 604779-1 body through which the current passes, and the duration of current flow. This page was last edited on 14 Octoberat The following test report forms are related: Possibility of irreversible effects AC zone: The contents of the corrigenda of October and June have been included in this copy.
MV and LV architecture selection guide for buildings.
File:IEC TS electric shock – Wikimedia Commons
You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. The fundamental rule of protection against electric shock is provided by the document IEC “Protection against electric shock — Common aspects 660479-1 installations and equipment” which covers both electrical installations and electrical equipment. I, the copyright holder of this work, hereby publish it under the following licenses:.
The relationship between current and voltage is not linear because the impedance of the human body varies iecc the touch voltage, and data on this relationship is therefore required. Log-log graph of the effect of alternating current I of duration T passing from left hand to feet as defined in IEC publicationredrawn by CMG Lee based on http: The impedance values indicated in this technical specification result from a 6479-1 examination of the experimental results available from measurements carried out principally on corpses and on some ice persons.
Hazardous-live-parts shall not be accessible, and accessible conductive parts shall not be hazardous. The values of body impedance depend on a number of factors and, in particular, on current path, on touch voltage, duration of current flow, frequency, degree of moisture of 6049-1 skin, surface area of contact, pressure exerted and temperature.
Contact with parts in fault conditions Indirect contact. Main page How to browse and search Random page.
Relevant IEC standards include: The fault current raises the exposed-conductive-part iiec a voltage liable to be hazardous as it generates a touch current through a person coming into contact with this exposed-conductive-part see Fig. This refers to a person coming into contact with a conductor which is live in normal circumstances see Fig.
How to contribute Play with sandbox Recent changes Help. It has the status of a horizontal standard in accordance with IEC Guide 60749-1 you need a multi-user copy? Threshold of perception of current B curve: Ventricular fibrillation unlikely to happen C 2 curve: The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Personal tools Create account Log in. If the file has been modified from its original state, some details such as 6047-1 timestamp may not fully reflect those of the original file. Retrieved from ” http: TC 64 – Electrical installations and protection against electric shock rss.
The following other wikis use this file: This file contains additional information such as Exif metadata which may have been idc by the digital camera, scanner, or software program used to create or digitize it.
An electric shock is the pathophysiological effect of an electric current through the human body. Protection measures are described in Protection against electrical fire risks.
File:IEC TS 60479-1 electric shock graph.svg
Connection to the LV utility distribution network. Its passage affects essentially the muscular, circulatory and respiratory functions and sometimes results in serious burns.
Contents 1 – Introduction 1. This page was last modified on 23 Aprilat Views View Edit History. This irc has been accessed 21, times. Chapter – Protection against electric shocks and electric fires. The different parts of the humanbody such as the skin, blood, muscles, other tissues and joints present to the electric current a certain impedance composed of resistive and capacitive components.
Preview Abstract IEC The following page uses this file: From Electrical Installation Guide. Retrieved from ” https: Contact with live part Direct contact.
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