ILME: APX Gehäuse aus Aluminiumdruckguss - APV ATEX

8 Group I = Mining sites II = Surface plants Example of equipment classification: II 3 GD Ex nA Category 1 (very high level of protection, explosive atmosphere that is permanently/frequently present or present for long periods of time) For zone: 0 20 Atmosphere: G D Category 2 (high level of protection; occasional presence of an explosive atmosphere) For zone: 1 21 Atmosphere: G D Category 3 (standard level of protection, unlikely presence of an explosive atmosphere) For zone: 2 22 Atmosphere: G D G = Protection from gases D = Protection from dust Type of protection for electric equipment Gases: e = Increased safety (IEC 60079-7) d = Explosion-proof enclosures (IEC 60079-1) p_ = With internal overpressure (IEC 60079-2) i_ = Intrinsically safe (IEC 60079-11) o = Equipment immersed in oil (IEC 60079-6) q = Equipment containing dust (IEC 60079-5) m_ = Encapsulation (IEC 60079-18) n_ = With protection device; levels (IEC 60079-15): nA Non-sparking device nC Sparking device nR Enclosures with limited breathability Dust: t_ = Protection with enclosure; levels: ta; tb; tc (IEC 60079-31) p = Pressurization (IEC 61241-4) i_ = Intrinsically safe (IEC 60079-11); levels: ia; ib; ic m_ = Encapsulation (IEC 60079-18); levels: ma; mb; mc