IEC TS Effects of current on human beings and livestock -. Part 1: General aspects. • IEC TS Effects of current on. Protection measures are described in sections 1 to 8. IEC publication updated in defines four zones of current-magnitude. Comply with a (yet to be developed) authoritative NZ specific set of Power Coordination hazard voltage limits, calculated from IEC on a similar.
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Main page How to browse and search Random page. Oec against electric shocks and electrical fires. Hazardous-live-parts shall not be accessible, and accessible conductive parts shall not be hazardous. The necessary criterion is the admissible limit of touch voltage i. The following test report forms are related: This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it.
TC 64 – Electrical installations and protection against electric shock rss. The fault current raises the exposed-conductive-part to a voltage liable to be hazardous as it generates a touch current through a person coming into contact with 11 exposed-conductive-part see Fig. Connection to the LV utility distribution network. Our prices are iex Swiss francs CHF.
Its passage affects essentially the muscular, circulatory and respiratory functions and sometimes results in ifc burns. From Wikimedia Commons, the free media repository. Do you need a multi-user copy? We accept all major credit cards American Express, Mastercard and VisaPayPal and bank transfers as form of payment.
Protection against electric shock – Electrical Installation Guide
The protection of persons against electric shock in LV installations must be provided in conformity with appropriate national standards, statutory regulations, codes of practice, official guides and circulars etc. I, the copyright eic of this work, hereby publish it under the following licenses:. Contact with live part Direct contact. Personal tools Create account Log in.
Threshold of perception of current B curve: This page has been accessed 21, times. Connection to the MV utility distribution network. Contact with parts in fault conditions Indirect contact. Relevant IEC standards include: Views View Edit History. When a current exceeding 30 mA passes near the heart of a human 600479, the person concerned is in serious danger if the current is not interrupted in a very short time. The timestamp is only as accurate 604779 the clock in the camera, and it may be completely wrong.
File:IEC TS 60479-1 electric shock graph.svg
Possibility of irreversible effects AC zone: Chapter – Protection against electric shocks and electric fires. The degree of danger for the victim is a function of the magnitude of the current, the parts of the body 60497 which the current passes, and the duration of current flow.
Standards and regulations distinguish two kinds of dangerous contact: 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. Characteristics of particular sources and loads. The following page uses this file: Threshold of muscular reactions C 1 curve: Sizing and protection of conductors.
Protection measures are described in Protection against electrical fire risks. This page was last modified on 23 Aprilat Energy Efficiency in electrical distribution.
The relationship ief current and voltage is not linear because the impedance of the human body varies with the touch voltage, and data on this relationship is therefore required.
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 page was last edited on 14 Octoberat Preview Abstract IEC You may select the license of oec choice. An electric shock is the pathophysiological effect of an electric current through the human body.
Retrieved from ” http: Electrical fires are caused by overloads, short circuits and earth leakage currents, but also by electric arcs in cables and connections.
The values of body impedance depend on a 06479 of factors and, in particular, on current path, on touch voltage, duration of current flow, frequency, degree of moisture of the skin, surface area of contact, pressure exerted and temperature.
Basic protection Fault protection. The contents of the corrigenda of October and June have been included in this copy. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.