IEC/IEEE 60079-30-1 is intended to provide a comprehensive overview of the essentialrequirements and testing appropriate to electric surface heating equipment used in explosiveatmospheres. The requirements of this part of IEC 60079 are considered to be the minimumrequirements for equipment protection levels Gb, Gc, Db, and Dc in explosive atmospheresfor gases, dusts, and fibres/flyings. While some...