There is currently a key difference between the current IEC 60079-14: 2013 Standard and previous versions of BS EN 60079-14: 2008 & IEC 60079-14: 2007 for use of electrical equipment in potentially explosive atmospheres in that the IEC Standard currently allows the Duty Holder to use a ‘standard’ Ex certified flameproof gland as opposed to a Ex certified ‘barrier gland’ without the requirement to apply the previous flowchart used in the British Standard which identified glanding requirements based on gas group / zone / enclosure size.

There is evidence that this approach creates a fire and explosion risk and this Notice provides Duty Holders with information on what action to take.