Basic concepts for explosion protection
Basic concepts for explosion protectionBARTEC brochure Basic concepts for explosion protection 13. revised edition - Version 2018Authors: Hans-J rgen Linstr m Johannes BuhnThe brochure was put together carefully in conformance to the current status of standards and regulations. The respective amended version of the technical and statutory rules is binding. Errors and misprints do not justify any claim for rights reserved, in particular the rights of duplication, distribution and OF PROTECTION20 - 31General requirements20 Types of protection to electrical equipment21 Types of protection to non-electrical equipment22 Increased safetyEx eb23Non-sparking deviceEx ec23Constructional safetyc/Ex h23Intrinsically safeEx ia, ib, ic24Control of ignition sourcesb/Ex h24Encapsulation Ex ma, mb, mc25Non-incendive componentEx nC25Encapsulated deviceEx nC26Sealed deviceEx nC26Hermetically sealed deviceEx nC26Oil, /Liquid immersionEx o, k/Ex h27Pressurized enclosuresEx px, Ex py, Ex pz28Restricted breathing enclosureEx nR, fr28Protection by enclosureEx ta, tb, tc29Flameproof enclosuresEx da, db, dc30Enclosed break deviceEx nC30Powder filling Ex q31Special protectionEx s31MARKING32 - 35Marking in accordance with Directive 2014/34/EU.
Encapsulation Ex ma, mb, mc 25 Non-incendive component Ex nC 25 Encapsulated device Ex nC 26 Sealed device Ex nC 26 Hermetically sealed device Ex nC 26 Oil, /Liquid immersion Ex o, k/Ex h 27 Pressurized enclosures Ex px, Ex py, Ex pz 28 Restricted breathing enclosure Ex nR, fr 28 Protection by enclosure Ex ta, tb, tc 29 Flameproof enclosures Ex ...
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