Active standard | Published: 17/04/2019

IEC/TS 60079-42-ed.1.0

Explosive atmospheres - Part 42: Electrical safety devices for the control of potential ignition sources for Ex-Equipment
(Atmospheres explosive - Partie 42: Dispositifs electriques de securite pour la commande des sources potentielles d’inflammation des appareils Ex)

Available languages: English and French

Available design: electronic design (pdf), Print design, CD-ROM

from 5 035.00 CZK show on eshop

Detail information

Designation: IEC/TS 60079-42-ed.1.0

Publication date: 17/04/2019

Pages: 48

Country: International technical standard

Where to buy?

You can buy at www.mystandards.biz

Anotation

IEC TS 60079-42:2019 provides guidance for equipment manufacturers where electrical safety devices are used to reduce the likelihood of potential ignition sources becoming effective in Ex Equipment located in Explosive Atmospheres. Electrical safety devices perform a safety function to control potential ignition sources from both, electrical or non-electrical Ex Equipment in explosive atmospheres. This Technical Specification may also be applied to a combination of elements performing a safety function. For example: Sensor, Logic system, Final element. This Technical Specification can also be used for assessing the safety device independently, without being designed for a specific Ex Equipment.

A safety device can be a measure to achieve a required EPL of the Ex Equipment with respect to a potential ignition source. The combination of the safety device and the Ex Equipment could then comply with the relevant standards of the IEC 60079 series and the ISO 80079 series with respect to the Equipment Protection Level. However, increasing the EPL of Ex Equipment by the simple addition of a safety device is not within the scope of this Technical Specification. This Technical Specification does not apply to: • mechanical control equipment such as pressure relief valves, mechanical governors and other mechanical safety devices • the use of gas detection • control equipment to prevent the occurrence of explosive atmospheres, e.g. inerting systems and ventilation systems • mitigation of an explosion

IEC TS 60079-41:2019 fournit des recommandations pour les constructeurs d’appareils lorsque des dispositifs electriques de securite sont utilises pour reduire la probabilite que les sources potentielles d’inflammation deviennent effectives dans les appareils Ex situes en atmospheres explosives. Les dispositifs electriques de securite executent une fonction de securite pour controler les sources potentielles d’inflammation, provenant d’appareils Ex electriques ou non electriques, en atmospheres explosives. La presente Specification technique peut egalement s’appliquer a une combinaison d’elements executant une fonction de securite. Par exemple: Capteur, Systeme logique, Element terminal. La presente Specification technique peut egalement etre utilisee pour evaluer le dispositif de securite de maniere independante, sans qu’il soit concu pour un appareil Ex specifique. Un dispositif de securite peut etre une mesure permettant d’atteindre un niveau de protection du materiel (EPL - equipment protection level) exige de l’appareil Ex contre une source potentielle d’inflammation. La combinaison du dispositif de securite et de l’appareil Ex peut alors etre conforme aux normes pertinentes des series de normes IEC 60079 et ISO 80079 eu egard a l’EPL. Cependant, l’augmentation de l’EPL d’un appareil Ex par le simple ajout d’un dispositif de securite ne releve pas du domaine d’application de la presente Specification technique. La presente Specification technique ne s’applique pas: • aux appareils mecaniques de commande tels que les soupapes de surpression, les regulateurs mecaniques et autres dispositifs mecaniques de securite • a l’utilisation de detection de gaz • aux appareils de commande visant a eviter la formation d’atmospheres explosives, par exemple, systemes dinertage et systemes de ventilation • a l’attenuation d’une explosion

Popular Publishers

full catalog