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IEC 60079-0-2011 pdf free download

IEC 60079-0-2011 pdf free download.Explosive atmospheres – Part 0: Equipment – General requirements.
IEC 60079-0 is supplemented or modified by the following equipment standards:
IEC 60079-13: Explosive atmospheres — Part 13: Equipment protection by pressurized room
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.
This standard with the additional standards mentioned above, are not applicable to the construction of
• electromedical apparatus.
• shot-firing exploders,
• test devices for exploders, and
• shot-firing circuits.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60034-1, Rotating electrical machines — Part 1: Rating and performance
IEC 60034-5, Rotating electrical machines — Part 5: Classification of degrees of protection provided by the enclosures of rotating electrical machines (IP Code)
IEC 60050-426, International Electrotechnical Vocabulary (1EV) — Chapter 426: Electrical apparatus for explosive atmospheres
3Terms and definitions
For the purposes of this document, the following terms and definitions apply.
4 Equipment grouping
Electrical equipment for explosive atmospheres is divided into the following groups:
4.1 Group I
Electrical equipment of Group I is intended for use in mines susceptible to firedamp.
NOTE The types of protection for Group I take into account the ignition of both firedamp and coal dust along with enhanced physical protection for equipment used underground.
Electrical equipment intended for mines where the atmosphere, in addition to firedamp, may contain significant proportions of other flammable gases (i.e. other than methane), shall be constructed and tested in accordance with the requirements relating to Group I and also to the subdivision of Group II corresponding to the other significant flammable gases. This electrical equipment shall then be marked appropriately (for example, “Ex d ‘IIB T3” or “Ex d I/Il (NH3)”).
4.2 Group II
Electrical equipment of Group II is intended for use in places with an explosive gas atmosphere other than mines susceptible to firedamp.
Electrical equipment of Group II is subdivided according to the nature of the explosive gas atmosphere for which it is intended.IEC 60079-0 pdf download.

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