Use of barrier glands in potentially explosive atmospheres

There is a difference between the current IEC 60079-14: 2013 Standard and previous versions of BS EN 60079-14:2018 and IEC 60079-14:2007 for using electrical equipment in potentially explosive atmospheres. The IEC Standard 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.

For more information, read the HSE safety alert online.