UL Standard for Explosive atmospheres – Part 2: Equipment protection by pressurized enclosure ‘p’. Purchase UL 1 Scope. This part of IEC contains the specific requirements for the construction and testing of electrical apparatus with pressurized. EN /AC 08/04/ Cenelec. EN Explosive atmospheres – Part 5: Equipment protection by powder filling “q” IEC
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This fifth edition cancels and replaces the fourth edition, published in60097-2 constitutes a technical revision. This standard is also applicable to electrical equipment or parts of electrical equipment located outside the explosive atmosphere or protected by another Type of Protection listed in IECwhere the intrinsic safety of the electrical circuits in the explosive atmosphere may depend upon the design and construction of 600779-2 electrical equipment or parts of such electrical equipment.
The examples in this standard are based on a system of effective housekeeping being implemented in the plant to prevent dust layers from accumulating.
BS EN Explosive atmospheres. Equipment protection by pressurized enclosure “p”
Electrical equipment whose normal operation involves sparks, arcing, or hot components and complex industrial standard equipment controllers whose protection type enables them to be operated in hazardous areas. Where a requirement 6009-2 this standard conflicts with a requirement of IECthe requirement of this standard shall take precedence.
Large machines, slip ring or collector motors, switchgear and control gear cabinets, and analysis devices. This standard supplements IECthe requirements of which apply to electrical apparatus used in intrinsically safe electrical systems.
The supply of purging and pressurising air is managed by a special control unit. In Clause 4, area classification for explosive dusts clouds is described, with dust layers acting as one of the possible sources of release. This seventh edition cancels and replaces the sixth edition, 600079-2 inand constitutes a technical revision.
IEC Series Explosive Atmosphere Standards
Ex Equipment and Ex Components with type of protection liquid immersion “o” Available for Subscriptions. Artificial ventilation for the protection of analyser s houses Gives the general principles of protection by artificial ventilation. Additional information regarding the scope of this document can be found in Clause 1.
This edition includes the following significant changes, apart from the general revision and updating of the first edition of IEC and harmonization with IEEE Std. Learn more about the cookies we use and how to change your settings. In addition as this Standard is now to become one of the IEC series, changes have been made to bring it more in line with others in the series by cross referencing.
This standard does not apply to dusts of explosives, which do not require atmospheric oxygen for combustion, or to pyrophoric substances. Ex Equipment and Ex Components intended for use in explosive atmospheres. As the voice of the U.
This standard should be read in conjunction with ISO Intrinsically safe electrical systems “IEC Dealing with general equipment requirements, gas detectors, intrinsically safe equipment, a variety of different methods of equipment protection, and moving on to the classification of areas, material characteristics, and some industry specific standards, the IEC series is truly expansive.
Please refer to the foreword of the document for a detailed listing of the significant technical changes from the previous edition. Refer to the Forward of the document for a 60079-2 listing of the 6079-2 changes between edition 5.
The enclosure must be able to withstand 1.
Pressurisation (Ex p) – EN 60079-2
Values of 6079-2 properties of materials are provided to assist in the selection of equipment to be used in hazardous areas. The standard atmospheric conditions relating to the explosion characteristics of the atmosphere under which it may be assumed that Ex Equipment can be operated are: The electrical circuits exposed to the explosive atmosphere are evaluated for use in such an atmosphere by applying this standard.
Level of Protection “eb” applies to equipment or Ex Components, including their connections, conductors, windings, lamps, and batteries; but not including semiconductors or electrolytic capacitors.
Protection of equipment and transmission systems using optical radiation IEC This sixth edition cancels and replaces the fifth edition published in Click to learn more. Gas 600792- – Selection, installation, use and maintenance of detectors for flammable gases and oxygen NEW! One advantage of purging and pressurising is that this protection concept also accommodates possible internal releases of flammable gas, vapour or liquid.
The application of electrical equipment in atmospheres, which may contain explosive gas as well as combustible dust simultaneously, may require additional protective measures. Proceed to Checkout Continue Shopping.
BS EN 60079-2:2014
This part of IEC applies to electrical equipment where the rated input voltage does not exceed 15 kV r. Accept and continue Learn more about the cookies we use and how to change your settings.
Where a requirement of this standard conflicts with a requirement of IEC or IECthe requirement of this standard takes precedence. For Level of Protection “oc”, this standard applies where the rated voltage does not exceed 15 kV r.