BS EN 60079-30-2. Explosive atmospheres. Part 30-2. Electrical resistance trace heating. Application guide for design, installation and maintenance Ingestion-build-44616 but it should not be

but it should not be assumed that their adoption necessarily removes the need to consider supplementary measures

BS EN 13128 specifies the technical safety requirements and measures to be adopted by persons undertaking the design

of the voltage and the type of load

Electrical apparatus for explosive gas atmospheres - Part 25: Intrinsically safe systems

Test Qc is a bubble test again including three methods with different sensitivities [leaks not less than 1 Pa·cm3/s (10–5 bar·cm3/s)]

BS EN 60079-30-2. Explosive atmospheres. Part 30-2. Electrical resistance trace heating. Application guide for design, installation and maintenance Ingestion-build-44616 but it should not be