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Info iec62271 202 ed2 0 b This is a preview - click here to buy the full publication INTERNATIONAL STANDARD IEC - Edition - NORME INTERNATIONALE colour inside High-voltage switchgear and controlgear ?? Part High-voltage low- voltage prefabricated substati

This is a preview - click here to buy the full publication INTERNATIONAL STANDARD IEC - Edition - NORME INTERNATIONALE colour inside High-voltage switchgear and controlgear ?? Part High-voltage low- voltage prefabricated substation Appareillage à haute tension ?? Partie Postes préfabriqués haute tension basse tension INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS XD PRICE CODE CODE PRIX ISBN - - - - Warning Make sure that you obtained this publication from an authorized distributor Attention Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé Registered trademark of the International Electrotechnical Commission Marque déposée de la Commission Electrotechnique Internationale CThis is a preview - click here to buy the full publication ?? ?? IEC - ? IEC CONTENTS FOREW ORD INTRODUCTION General Scope Normative references Normal and special service conditions Normal service conditions Indoor switchgear and controlgear Low-voltage switchgear and controlgear Transformer Outdoor switchgear and controlgear Special service conditions Altitude Pollution Temperature and humidity Vibrations shock or tilting Wind speed Other parameters Terms and de ?nitions Ratings Rated voltage Ur Rated insulation level Rated frequency fr Rated normal current and temperature rise Rated normal current Ir Temperature rise Particular points of Table Rated short-time withstand current Ik Rated short-time withstand current of high voltage switchgear and controlgear and high voltage interconnection Ik Rated short-time phase to earth withstand current Ike Rated short-time withstand currents of low voltage switchgear and controlgear and low voltage interconnection Icw Rated peak withstand current Ip Rated peak withstand current Ip Rated peak phase to earth withstand current Ipe Rated peak withstand currents of low voltage switchgear and controlgear and low voltage interconnection Ipk Rated durations of short circuit tk Rated duration of short circuit tk Rated duration of phase to earth short circuit tke Rated duration of short circuits for low voltage switchgear and controlgear and low voltage interconnection Rated duration of short circuits for transformers Rated supply voltage of closing and opening devices and auxiliary and control circuits Ua Rated supply frequency of closing and opening devices and of auxiliary circuits CThis is a preview - click here to buy the full publication IEC - ? IEC ?? ?? Rated pressure of compressed gas supply for controlled pressure systems Rated ?lling levels for insulation and or operation Rated maximum power and class of enclosure Rated maximum power of the prefabricated substation Rated class of enclosure Ratings of the internal arc classi ?cation General Types of accessibility A B AB Rated arc fault currents IA IAe Rated arc fault duration tA tAe Design and construction Requirements for liquids in switchgear and controlgear Requirements for gases in switchgear and controlgear Earthing of switchgear and controlgear Auxiliary and control equipment Dependent power operation Stored energy operation Independent manual or power operation independent unlatched operation Operation of releases Low- and high-pressure interlocking and monitoring devices Nameplates Interlocking devices Position indication Degree of protection provided by enclosures Creepage distances for outdoor insulators Gas and vacuum tightness Liquid tightness Fire hazard ammability Electromagnetic compatibility EMC Protection of