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Homepage>IEC Standards>IEC 61643-312:2013 - Components for low-voltage surge protective devices - Part 312: Selection and application principles for gas discharge tubes
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download between 0-24 hoursReleased: 2013-04-22
IEC 61643-312:2013 - Components for low-voltage surge protective devices - Part 312: Selection and application principles for gas discharge tubes

IEC 61643-312:2013

Components for low-voltage surge protective devices - Part 312: Selection and application principles for gas discharge tubes

Composants pour parafoudres basse tension - Partie 312: Principes de choix et d'application pour les tubes à décharge de gaz

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Standard number:IEC 61643-312:2013
Released:2013-04-22
Language:English/French - Bilingual
DESCRIPTION

IEC 61643-312:2013

IEC 61643-312:2013 is applicable to gas discharge tubes (GDT) used for overvoltage protection in telecommunications, signalling and low-voltage power distribution networks with nominal system voltages up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c. They are defined as a gap, or several gaps with two or three metal electrodes hermetically sealed so that gas mixture and pressure are under control. They are designed to protect apparatus or personnel, or both, from high transient voltages. This standard provides information about the characteristics and circuit applications of GDTs having two or three electrodes. This standard does not specify requirements applicable to complete surge protective devices, nor does it specify total requirements for GDTs employed within electronic devices, where precise coordination between GDT performance and surge protective device withstand capability is highly critical. Keywords: gas discharge tubes (GDT), overvoltage protection in telecommunications, signalling and low-voltage power distribution networks, nominal system voltages up to 1 000 V (r.m.s.) a.c. and 1 500 V d.c. The contents of the corrigendum of July 2013 have been included in this copy.