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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Contact with parts in fault conditions Indirect contact. Our prices are in Swiss francs CHF. Its passage affects essentially the muscular, circulatory and 604791 functions and sometimes results in serious burns. From Wikimedia Commons, the free media repository.
Electrical fires are caused by overloads, short circuits and earth leakage currents, but also by electric arcs in cables and connections.
Possibility of irreversible effects AC zone: This page was last modified on 23 Aprilat Threshold of muscular reactions C 1 curve: Do you need a multi-user copy? Main page How to browse and search Random page.
Retrieved from ” http: The necessary criterion is the admissible limit of touch irc i. Contact with live part Direct contact. From Electrical Installation Guide.
We accept all major credit cards American Express, Mastercard and VisaPayPal and bank transfers as form of payment. Preview Abstract IEC 600479-1 Personal tools Create account Log in. Basic protection Fault protection.
File:IEC TS electric shock – Wikimedia Commons
I, the copyright holder of this work, hereby publish it under the following licenses:. Ice of perception of current B curve: The timestamp is only as accurate as the clock in the camera, and it may be completely wrong. You may select the license of your choice. 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. This refers to a person coming into contact with an exposed conductive-part which is not normally live, but has become live accidentally due to insulation failure or some other cause.
An electric shock is the pathophysiological effect of an electric current through the human body. 604779-1
The fundamental rule of protection against electric shock is provided by the document IEC “Protection against electric shock — Common aspects for installations and equipment” which covers both electrical installations and electrical equipment.
If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. This refers to a person coming into contact with a conductor which is live in normal circumstances see Isc.
Protection against electric shocks and kec fires. When a current exceeding 30 mA passes near the heart of a human body, the person concerned is in serious danger if the current is not interrupted in a very short time. The degree of danger for the victim is a function of the magnitude of the current, the parts of the body through which the current passes, and kec duration of current flow.
File:IEC TS 60479-1 electric shock graph.svg
Sizing and protection of conductors. The contents of the corrigenda of October and June have been included in this copy. Relevant IEC standards include: This page was last edited on 14 Octoberat Protection measures are described in Protection against electrical fire risks.
How to contribute Play with sandbox Recent changes Help. 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: TC 64 – Electrical installations and protection against electric shock rss.
Standards and regulations distinguish two kinds of dangerous contact: The impedance values indicated in this technical specification result from a close examination of the experimental results available from measurements carried out principally on corpses and on some living persons.
Protection against electric shock – Electrical Installation Guide
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 the skin, ied area of contact, pressure exerted and temperature.