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HAZ AREA IEC 60079 Hazardous Area Classification Objectives

Discussion in 'Hazardous Area Classification and Design' started by ver, Jun 15, 2015.

  1. ver

    ver Administrator Staff Member

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    As per IEC 60079-10-1 Clause 4.2
    Below is a simplistic diagram to classify hazardous areas as per IEC 60079.

    Hazardous Area Classification.png
     
  2. ver

    ver Administrator Staff Member

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    Scope Of IEC 60079 Series of Standards

    IEC 60079 specifies the general requirements for construction, testing and marking of electrical equipment and Ex Components intended for use in explosive atmospheres.
    Th IEC 60079 series of standard types of protection:
    • IEC 60079-1: Gas – Flameproof enclosures "d"
    • IEC 60079-2: Gas – Pressurized enclosures "p"
    • IEC 60079-5: Gas – Powder filling "q"
    • IEC 60079-6: Gas – Oil immersion "o"
    • IEC 60079-7: Gas – Increased safety "e"
    • IEC 60079-11: Gas – Intrinsic safety "i"
    • IEC 60079-15: Gas – Type of protection "n"
    • IEC 60079-18: Gas and dust – Encapsulation "m"
    • IEC 60079-31: Dust – Protection by enclosure "t"
    • IEC 61241-4: Dust – Pressurization "pD".
    Additional information on types of protection for non-electrical equipment can be found in ISO/IEC 80079-36 (to be published). This standard is supplemented or modified by the following equipment standards:
    • IEC 60079-13: Explosive atmospheres – Part 13: Equipment protection by pressurized room "p"
    • IEC 60079-25: Explosive atmospheres – Part 25: Intrinsically safe electrical systems
    • IEC 60079-26: Explosive atmospheres – Part 26: Equipment with equipment protection level (EPL) Ga
    • IEC 60079-28: Explosive atmospheres – Part 28: Protection of equipment and transmission systems using optical radiation
    • IEC 62013-1: Caplights for use in mines susceptible to firedamp – Part 1: General requirements – Construction and testing in relation to the risk of explosion
    • IEC 60079-30-1: Explosive atmospheres – Part 30-1: Electrical resistance trace heating – General and testing requirements.
    Excluded equipment under IEC 60079:
    • electromedical apparatus,
    • shot-firing exploders,
    • test devices for exploders, and
    • shot-firing circuits.
     

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