Course at a Glance
Code: CHZ
Course Length: 3 Months

In this interactive 3 month LIVE ONLINE course, you will learn:

  • Use correct hazardous areas terminology and definitions
  • Explain the responsibilities of hazardous area owners and equipment suppliers
  • Explain how apparatus is made safe and suitable for use in hazardous areas
  • Provide an understanding of the different types of protection
  • Understand simple area classification schemes
  • Examine different approaches for selection of types of protection
  • Compare techniques used for power and instrumentation applications
  • Explain how marking and identification of such apparatus is applied
  • Understand the requirements for maintenance of such apparatus
  • Understand the requirements for inspection in hazardous area
  • Discuss how work permits systems must be adopted for hazardous area working
  • Discuss and compare the advantages and disadvantages of different types of protection in given applications
  • Compare certification and approval concepts
  • Effectively communicate with others on such safety issues  


Course Details


This course provides a comprehensive technical approach to hazardous areas. It explains the subject of explosion protection applied to electrical equipment in such areas. The course offers detailed explanations of the principles involved, the techniques used, the management structures and requirements to comply with the harmonized international standards that are now in place. Where potentially flammable atmospheres are encountered in industrial processes, area classification is mandatory as part of a risk assessment for the management of health and safety; the issues are examined by providing the opportunity to apply this process and understand the importance and extent of the co-operation of the disciplines involved. Requirements of inspection and maintenance are examined to show the importance of their effectiveness once the correct installation has been properly achieved, and to enable management to form a structured and effective regime to assure safety.
This course would also be appropriate for supervisors and managers, with the emphasis on outlining the management responsibility and enabling them to complement and accommodate the needs of technical staff beneath them. It is a common problem that technical staff are trained in what needs to be done but their management does not appreciate this or understand it. This course will address these shortcomings.

Course Outline

MODULE 1: Background and History

The need for explosion protection
Lessons from disaster investigation
Concept of certification
Risk assessment

MODULE 2: Ignition Characteristics

Fire triangle
Flammability characteristics
Ignition sources
Apparatus grouping

MODULE 3: Area Classification Theory

Terminology and definitions
Sources of release and ventilation
Presentation, communication and monitoring
Types of protection suitability

MODULE 4: Area Classification Practice

Process of decision making
Assessment and calculation
Other 'codes of practice'
Examples and tabulations

MODULE 5: Ex d

Theory of operation
Flamepath joint types
Dimensions and condition
Apparatus and component certification

MODULE 6: Ex i & Systems

Intrinsic safety
Simple apparatus
Apparatus and system concepts
Apparatus matching
Descriptive system documentation

MODULE 7: Ex e and Ex n

Increased safety
Limitations of use
Insulation and connection integrity
Enclosure requirements
The difference in approach

MODULE 8: Ex Types: p, o, q, m and s

Features of these other types of protection
Pressurisation and purging, oil immersion, sand-filling and encapsulation.
Special protection
Combined protection types

MODULE 9: Installation

General requirements
Information flow
Cabling requirements
Electrical protection
Earthing and bonding
Specific requirements for different types of Protection

MODULE 10: Inspection

General requirements
Periodicity and grade
Testing and fault-finding issues

MODULE 11: Certification and Marking

Summary of certification
Marking of older apparatus
Types of certificate and information contained
Conditions placed on the use of apparatus
Multiple certification techniques and benefits

MODULE 12: European ATEX Requirements

ATEX and the international standards
Product marking
"Product" directive
"Workers" directive (The DSEAR in UK)

Learning and Teaching

Benefits of eLearning to Students

  • Cost effective: no travel or accommodation necessary
  • Interactive: live, interactive sessions let you communicate with your instructor and fellow students
  • Flexible: short interactive sessions over the Internet which you can attend from your home or office. Learn while you earn!
  • Practical: perform exercises by remotely accessing our labs and simulation software
  • Expert instructors: instructors have extensive industry experience; they are not just 'academics'
  • No geographical limits: learn from any location, all you need is an Internet connection
  • Constant support: from your instructor(s) and a dedicated Learning Support Officer for the complete duration of the course
  • International insight: interact and network with participants from around the globe and gain valuable insight into international practice 

Benefits of eLearning to Employers

  • Lower training costs: no travel or accommodation necessary
  • Less downtime: short webinars (60-90 minutes) and flexible training methods means less time away from work
  • Retain employees: keep staff who may be considering a qualification as full time study
  • Increase efficiency: improve your engineering or technical employees’ skills and knowledge
  • International insight: students will have access to internationally based professional instructors and students


How Does it Work?

EIT eLearning courses involve a combination of live, interactive sessions over the Internet with a professional instructor, set readings, and assignments. The courses include simulation software and remote laboratory applications to let you put theory to practice, and provide you with constant support from a dedicated Learning Support Officer.

Practical Exercises and Remote Laboratories

As part of the groundbreaking new way of teaching, our online engineering courses use a series of remote laboratories (labs) and simulation software, to facilitate your learning and to test the knowledge you gain during your course. These involve complete working labs set up at various locations of the world into which you will be able to log to and proceed through the various practical sessions.

These will be supplemented by simulation software, running either remotely or on your computer, to ensure you gain the requisite hands-on experience. No one can learn much solely from lectures, the labs and simulation software are designed to increase the absorption of the materials and to give you a practical orientation of the learning experience. All this will give you a solid, practical exposure to the key principles covered and will ensure that you obtain maximum benefit from your course.




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The Engineering Institute of Technology (EIT) is dedicated to ensuring our students receive a world-class education and gain skills they can immediately implement in the workplace upon graduation. Our staff members uphold our ethos of honesty and integrity, and we stand by our word because it is our bond. Our students are also expected to carry this attitude throughout their time at our institute, and into their careers.

Endorsed by ISA

School of Industrial Automation