The CompEx Electrical Refresher course is a nationally recognised qualification supported by the HSE, NICEIC and EEMUA.

CompEx Electrical is the only nationally recognised course and qualification in explosive atmospheres installation and inspection.

The CompEx Electrical Refresher course must be completed within 5 years of the original CompEx Electrical course to retain the qualification, which is fast becoming mandatory in many offshore and onshore industrial environments.

If you do not do the refresher within the 5 year time frame (and pass the test), your certificate will expire and you will no longer be 'CompEx' qualified.

Course Objectives

The course will refresh the delegates competency in the selection, installation, inspection and maintenance of electrical apparatus in potentially explosive atmospheres.


In order to complete the CompEx Electrical Refresher course, delegates must hold:

  • A valid CompEx Electrical certificate

PLEASE NOTE: This course can also be taken as an overview of explosive atmosphere installation and inspection.

The CompEx Electrical course is also available to book at AIS Training >>

We are also able to run this course off-site. If you wish to run this on your premisis, please give us a call on 0844 800 1810.