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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The degree of danger for the victim is a function of the magnitude of the current, the parts idc the body through which the current passes, and the duration of current flow. 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.
Connection to the LV utility distribution network.
Contact with parts in fault conditions Indirect contact. The relationship between 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.
The contents of the corrigenda of October and June have been included in this copy.
Contact with live part Direct contact. Iwc page How to browse and search Random page. Residential premises and other special locations. Our prices are in Swiss francs CHF. This refers to a person coming into contact with a conductor which is live in normal circumstances see Fig. Protection against electric shocks and electrical fires. Contents 1 – Introduction 1. I, the copyright holder of this work, hereby publish it under the following licenses:. Standards and regulations distinguish two kinds of dangerous contact: Protection measures kec described in Protection against electrical fire risks.
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This page was last edited on 14 Octoberat It has the status of a horizontal standard in accordance 604799-1 IEC Guide Relevant IEC standards include: 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.
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Basic protection Fault protection. 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. Preview Abstract IEC 60479-11 This page has been accessed 21, times. The fault current raises the exposed-conductive-part to a voltage liable to be hazardous as it generates a touch current through a 60479–1 coming into contact with this exposed-conductive-part see Fig.
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Threshold of muscular reactions C 1 curve: The different parts iex 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 page was last modified on 23 Aprilat Characteristics of particular sources and loads.
Views View Edit History. 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.
The following other wikis use this file: How to contribute Play with sandbox Recent changes Help. Chapter – Protection against electric shocks and electric fires. MV and LV architecture selection guide for buildings. Energy Efficiency in electrical distribution. Connection to the MV utility distribution network.
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. Retrieved from ” https: 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: We accept all major credit cards 604791 Express, Mastercard and VisaPayPal and bank transfers as form 600479-1 payment.
Ventricular fibrillation unlikely to happen C 2 curve: The necessary criterion is the admissible limit of touch voltage i.
The following page uses this file: 6079-1 following test report forms are related: Its passage affects essentially the muscular, circulatory and respiratory functions and sometimes results in serious burns. Personal tools Create account Log in. You may select the license of your choice.
File:IEC TS 60479-1 electric shock graph.svg
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 660479-1 electrical installations and electrical equipment. Sizing and protection of conductors. TC 64 – Electrical installations and protection against electric shock rss.