Transcription of Basic concepts for explosion protection
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Basic concepts for explosion protection
Basic concepts for explosion protectionBARTEC brochure Basic concepts for explosion protection 13. revised edition - Version 2018 Authors: 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 - 31 General requirements20 Types of protection to electrical equipment21 Types of protection to non-electrical equipment22 Increased safetyEx eb23 Non-sparking deviceEx ec23 Constructional safetyc/Ex h23 Intrinsically safeEx ia, ib, ic24 Control of ignition sourcesb/Ex h24 Encapsulation Ex ma, mb, mc25 Non-incendive componentEx nC25 Encapsulated deviceEx nC26 Sealed deviceEx nC26 Hermetically sealed deviceEx nC26 Oil, /Liquid immersionEx o, k/Ex h27 Pressurized enclosuresEx px, Ex py, Ex pz28 Restricted breathing enclosureEx nR, fr28 Pro
– triggered fi res long before humans walked the earth. In 1753 the fi rst lightning conductor was invented, enabling electrostatic hazards as the sources of ignition for fi res to be signifi cantly reduced. Lighting in mining also constituted another high fi re risk for many years, because mine air mixed with methane – so-called
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