Differences between Explosion Protected Electrical Equipment & Components

Tuesday, 13 March 2018

DIFFERENCES BETWEEN EXPLOSION PROTECTED ELECTRICAL EQUIPMENT & COMPONENTSIt has been noted that the practice of purchasing empty flameproof enclosures, fitting and wiring the electrical equipment and supplying ‘new’ explosion protected equipment into the industry.


This practice is in breach of the IEC Ex standards and scheme. Whilst it might not be a safety issue, it is like driving a car on a public road without a license. It is not necessarily going to make the roads unsafe, but it is against the law and a criminal act attracting penalties.


The following scenario can be used to illustrate what is happening in the industry:

                         Company ‘A’ is a manufacturer, has a QAR and is the holder of an IECEx equipment certificate for an Explosion protected product. (Flameproof Ex d).

                         Company ‘B’ is a separate company.

                         Company ‘A’ manufactures an Ex d. enclosure and sells the empty enclosure to company ‘B’.

                         Company ‘B’ installs the internal electrical components, completes the electrical wiring and conducts functional tests.

                         When complete, company ‘B’ sells this Ex equipment to the end user using the original company ‘A’s certificate number and marking label.




Extracts from standards, Coal Mines Health and Safety Act and Gazette No. 10.

Extracts available from the ExTA website: http://www.exta.org.au/ 



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