Selection of Electrical Equipment in Hazardous Areas

An Online Training Course by Cholamandalam MS Risk Services Safety Academy.


    Note: This course is taken entirely on a separate portal hosted by Cholamandalam MS Risk Services Safety Academy. Upon successful enrolment, you will receive the login details to start the course within 24-48 hours.


    Course Description:

    One of the objectives of the HAC exercise is to select equipment so that they do not become a source of ignition.

    The selection of electrical equipments is generally based on the requirements specified in standards like IS 5571 and IS/IEC 60079. Selection of electrical equipment in HAC should be based on aspects like classification of the Hazardous Area – (Zone Classification), Temperature class or Ignition temperature of gas or vapour and Gas Grouping – IIA, IIB or IIC. The course gives the learner a detailed understanding of these concepts.



    • Understand HAC Zones
    • Basis for classification based upon Temperature , Vapour and Gas Grouping
    • Understand Types of Hazardous Area Equipment
    • Selection of Electrical equipment based upon Zones


    Who Should Take This Course:

    Plant Managers, Operations and Maintenance Personnel, HSE professionals.



    1. Applicable Standards and selection criteria
    2. Selection based upon Surface Temperature
    3. Selection based on Gas Group
      • Gas group details for selection of electrical equipment and MESG (Maximum Experimental Safe Gap)
      • Examples of gas by their groups IIA,IIB and IIC
      • Recommended protection methods – The type of equipment to be selected according to zone
    4. Types of Hazardous Area Equipment
    5. Flame proof Enclosure
    6. Identifying Explosive atmosphere equipment
      • Identifying the equipment and its suitability from the name plate
    7. Guidelines for performing maintenance in HAC zones

    Course Curriculum

    Selection of Electrical Equipment in Hazardous Areas 01:00:00

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    • SGD 45
    • 1 Units
    • 60 Minutes
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    Cholamandalam MS Risk Services Limited is a 50:50 joint venture between INR 269 Billion Murugappa Group, India and Mitsui Sumitomo Insurance Group, Japan and has a technical collaboration with InterRisk, a group company of Mitsui Sumitomo Insurance Group. Established in year 1994, Cholamandalam MS Risk Services is a Chennai based Risk Consulting Company offering comprehensive Risk management & Engineering solutions in field of Safety, Health and Environment. The company has pioneered many innovative and specialized services catering to the needs of Asian & European markets for last 15 years. The organization has successfully executed more than 2000 projects (Domestic/International) which not only helped its clients maintain compliance but also optimize their EHS performance and set new benchmarks. Cholamandalam MS Risk Services, an ISO 9001:2008 company, is a certified “Environment Impact Assessment” Consultant organization by NABET EIA Accreditation committee, a constituent of Quality Council of India. The organization was also declared “Risk Manager of the Year” in Asian Insurance Industry Awards and is the only Indian company to be approved as Safety Consultants by Kuwait Oil Company under section 31S till date. The company has collaboration with Process Map Infotech for its World Class Compliance and Risk management EHS Software Solutions for Indian market. The organization has a pan India presence with office in Mumbai, New Delhi, Gurgaon, Ahmedabad and Pune besides corporate office in Chennai.
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