Explosive atmospheres - Electrical resistance trace heating. General and testing requirements1 Scope This part of IEC 60079 specifies general and testing requirements for electrical resistance trace heaters for application in explosive atmospheres with the exclusion of those for EPL Ga and Da. This standard covers trace heaters that comprise either factory or field (work site) assembled units, and which may be series trace heaters, parallel trace heaters, trace heater pads, or trace heater panels that have been assembled and or terminated in

003 % (m/m) as sulfur will not cause significant interference over the range 0

BS EN 61210 establishes uniform requirements for the dimensions

Domestic requirements

d) Engineering Viewpoint - detailing the infrastructure for distribution

This European Standard does not apply for articles containing pyrotechnic composition that include any of the following substances:

BS EN ISO 11591:2019 is the third edition that replaces the second edition (ISO 11591:2011)

Additional requirements for an internal electrical power source

joints and fixing attachments

IEC 60794-4 (all parts) and IEC 60794-1-2

Civil engineers and architects

mounting of receptacles

gas and waterside resistance