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Compex 3-day Competence Based Course Electrical & Instrumentation Equipment In Explosive Dust Atmospheres

Duration 3 days
Time 08:30 - 16:30
Cost £709.00 + VAT
Venue Altens Centre


Date Time Cost Venue Places  
11 Jul - 13 Jul 2022 08:30 - 16:30 £709.00 + VAT Altens Centre 2
12 Sep - 14 Sep 2022 08:30 - 16:30 £709.00 + VAT Altens Centre 2
14 Nov - 16 Nov 2022 08:30 - 16:30 £709.00 + VAT Altens Centre 4

About this course

Practical Content 40% Theoretical Content 60%

Target Audience

This qualification is suitable for electrotechnical personnel who work on the physical installation and assembly of new ‘Ex’ equipment and perform preventive maintenance and inspections on previously installed equipment in hazardous dust atmospheres.

Key Learning Outcomes

  • The ability to identify the correct national regulations, directives and IEC standards which are applicable to hazardous dust locations.
  • Understanding of the correct criteria and descriptors used to classify a hazardous dust location.
  • Ability to recognise the correct characteristics of common hazardous dust, fibres and flyings.
  • Demonstrate an underpinning knowledge of how Ex electrical equipment is certified, how it maintains its protection concept and how it is to be selected, installed, inspected and maintained.
  • Understand the correct test value readings for IS and non-IS installations and equipment.
  • Knowledge and skills to use IEC inspection table 1 and table 2 and associated information.
  • Ability to interpret IS documentation.
  • Identify and record faults at the correct grade of inspection and have the ability to recommend correct remedial action and use correct IEC inspection codes.
  • Recognise the need to prove an isolation on electrical equipment prior to carrying out a detailed inspection.

Course Content

  • Directives and relevant standards for selection, installation and inspection
  • Ignition temperature of combustible dust clouds; & dust layers
  • Combustible dust groups
  • Area classification and recommended representations for combustible dust area classification diagrams
  • Equipment protection types
  • Equipment marking
  • Practices ‘A’ and ‘B’ for the selection of equipment
  • Minimum requirements for ingress protection
  • Consideration of equipment for use in combustible dust
  • Selection and installation of equipment
  • Inspection of equipment


Each delegate will undertake a multiple-choice examination paper and practical exercises to demonstrate they have achieved the key learning outcomes detailed above.


CompEx National Certificate of Core Competence, valid for 5-years from date awarded.

Note: non-electrical/instrumentation personnel who complete the course are issued with an NEC CompEx Certificate.

Required Instructor Qualification/Experience

  • SVQ Level 3 in Electrical Engineering/Instrumentation Engineering or equivalent
  • Industrial experience with electrical and instrumentation equipment in combustible dust atmospheres and CompEx
  • A1 or equivalent Workplace Assessor
  • CompEx approved Training Instructor

Min/Max Delegates

2/4,course duration and times may vary depending on delegate numbers. Individual delegate finishing time will depend on the length of time taken for assessment.

Special Requirements

Before attending this course candidates should have successfully completed one of the following:

  • Delegates are required to provide their own PPE
  • Evidence of relevant vocational qualifications, either electrical or instrumentation, on starting the course (e,g, Apprenticeship certificate, Level 3 NVQ/SVQ or ECS/SJIB card).

Notes to Customers

To set up a course specifically for your company, or if the dates above are not suitable, please contact the ASET Customer Service Team for additional dates.

ASET Course Directory
Great coaching from the Instructor who guided me well and shared experiences.

John Weston
RelyOn Nutec

Excellent course and well instructed. Facilities on campus are excellent.

Craig Mackay
Hexion UK

Good course produced, great setup of facilities and the instructor was very knowledgeable of all tests received.

Alan Sinclair
Sparrows Group

Excellent set up and scenarios. Very experienced Instructors.

James McGinley

Instructor very experienced and knowledgeable. Good set up in Switch room/training area.

Stuart Mulpetre
RelyOn Nutec

A very competent and experienced team. Assessor was first class and his previous experience was very clear. I will recommend ASET to my team and my company for OIM Assessment.

Ryan Fiske

Steve was very helpful, knows what he is talking about and communicates it well. Very good practical side to the course.

Mark Johnston

Excellent materials provided, delivery of content excellent – clear and concise.

Brendan Farren
Private Delegate

Excellent course which was both interesting and essential to my offshore role, would definitely recommend.

Darren Mcdonald
CNR International

Thoroughly enjoyed the course and the way it was ran. Plenty of opportunities to work as a team and experience the new simulator.

Graham Morgan
Private Delegate

Very good course – lots of practical work.

James Stewart
RelyOn Nutec

Very well explained and detailed course, learnt a lot.

Connor Burnett
Stork Technical Services

Course was very well presented. All tutors were very helpful and friendly.

Michael Rae
NG Bailey Limited

arine “Very good interaction with the class by lecturer. Toby is knowledgeable, experienced and informative individual. His teaching techniques and approach to the subject are clear and precise. Toby has the ability to share the knowledge, technical and practical experience at its best to the students. I will look forward to participating in DP courses in the future.

Tomasz Bak
RelyOn Nutec

Course well-presented / managed with COVID restrictions in place.

Allen Price
TAQA Bratani Ltd

Instructor was a subject matter expert and a fountain of knowledge.

Robert Briant
RelyOn Nutec

Excellent course, well presented by the Instructor. Course certainly makes you think (which is good).

Ken Nisbet
RelyOn Nutec

Found this course very beneficial and I feel I will benefit from the knowledge gained from the instructor on this course in my workplace. Would definitely recommend to others.

William Hadden
Macduff Shellfish Ltd

Well structured. Excellent feedback and advice from the assessor.

Dale Checksfield
Chrysaor E & P Services UK

Excellent and informative.

Kevin Mcintosh
Private Delegate

A well run course with the mix of theory and practical. Totally met my expectations. Facilities was very good with plenty of equipment & tools.

Christopher Fitzpatrick

“Highly professional course, very helpful instructors who have delivered substantial relevant knowledge within the scope of all discussed issues/topics and were always there to answer any questions and clarify any uncertainties. I will definitely recommend this course and ASET Training Academy to all my friends and also will be very happy to refresh the course in five years time.

Piotr Kopec
Private Delegate

The course was excellent in delivery and content and I will recommend others for the course.

Stephen Ray
RelyOn Nutec

Good well instructed course. Team were excellent and made me fully at ease.

John James Penman
CNR International

Good course and made very enjoyable through the amount of hands on experience we got.

Cieran Geddes
RelyOn Nutec

The changes to this course very welcome. Ian has time to explain best practice and even corrected a few bad habits he noticed. Very happy this is probably the best course associated with my job.

Gavin Kennedy
Dolphin Drilling

Excellent course, right duration and opportunity for hands on switching exposure.

Neil Mcbain

Thoroughly enjoyed the course and feel I have learnt a lot

Nyall Robertson
RelyOn Nutec

Toby has a wealth of knowledge and experience on the subject of DP. He delivers the course very well.

Ryan Palmer
Trinity House

Very enjoyable course. Learnt and refreshed a lot of knowledge. Ian explains things very well and makes it easy to understand.

Jamie Wilson
KCA Deutag Drilling

Course was very good. Would recommend to others

Kyle Doig
RelyOn Nutec

The plant area is an excellent training area. Useful for training in a safe and clean environment.

Tony Coyle
Harbour Energy

Excellent course – by far the best I have been on. Good mix of practical and theory. Instructor very knowledgeable and good training method.

Gareth Weston
Dana Petroleum

Instructors were excellent from start to end. Course was enjoyable – would recommend.

Ben Adams
Dana Petroleum

Course was organised very well. Tutors were very knowledgeable and helpful.

Bart Leyland
Private Delegate

The course instructor was highly knowledgeable, described all methods of the course in a very easy way to understand. Overall excellent.

Ryan Maloney
RFL Electrical


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