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Iec 62271 1 edition 2017 INTERNATIONAL STANDARD NORME INTERNATIONALE IEC - Edition - High-voltage switchgear and controlgear ?? Part Common speci ?cations for alternating current switchgear and controlgear Appareillage à haute tension ?? Partie Spéci ?cat

INTERNATIONAL STANDARD NORME INTERNATIONALE IEC - Edition - High-voltage switchgear and controlgear ?? Part Common speci ?cations for alternating current switchgear and controlgear Appareillage à haute tension ?? Partie Spéci ?cations communes pour appareillage à courant alternatif INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 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 C ?? ?? CONTENTS F D IEC - IEC FOREW ORD INTRODUCTION Scope Normative references Terms and de ?nitions General terms and de ?nitions Assemblies of switchgear and controlgear Parts of assemblies Switching devices Parts of switchgear and controlgear Operational characteristics of switchgear and controlgear Terms and de ?nitions relative to pressure or density Terms and de ?nitions relating to gas and vacuum tightness Terms and de ?nitions relating to liquid tightness Characteristic quantities Index of de ?nitions Normal and special service conditions Normal service conditions General Indoor switchgear and controlgear Outdoor switchgear and controlgear Special service conditions General Altitude Exposure to pollution Temperature and humidity Exposure to abnormal vibrations shock or tilting Wind speed Other parameters Ratings General Rated voltage Ur General Range I for rated voltages of kV and below Range II for rated voltages above kV Rated insulation level Ud Up Us Rated frequency fr Rated continuous current Ir Rated short-time withstand current Ik Rated peak withstand current Ip Rated duration of short-circuit tk Rated supply voltage of auxiliary and control circuits Ua General Rated supply voltage Ua Rated supply frequency of auxiliary and control circuits Rated pressure of compressed gas supply for controlled pressure systems C F D IEC - IEC ?? ?? 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 and circuits General Protection against electric shock Components installed in enclosures Dependent power operation Stored energy operation General Energy storage in gas receivers or hydraulic accumulators Energy storage in springs or weights Manual charging Motor charging Energy storage in capacitors Independent unlatched operation independent manual or power operation Manually operated actuators Operation of releases General Shunt closing release Shunt opening release Capacitor operation of shunt releases Under-voltage release Pressure level indication Gas pressure Liquid level Nameplates General Application Locking devices Position indication Degrees of protection provided by enclosures General Protection of persons against access to hazardous parts and protection of the equipment against ingress of solid foreign objects IP coding Protection against ingress of water IP coding Protection against mechanical impact under normal service conditions IK coding Creepage distances for outdoor insulators Gas and vacuum tightness General Controlled pressure systems for gas Closed pressure systems for gas Sealed pressure systems Tightness for liquid systems General Leakage rates Fire hazard ammability C ?? ?? F D IEC - IEC Electromagnetic compatibility EMC X-ray emission Corrosion Filling levels for insulation