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
|Published (Last):||21 September 2012|
|PDF File Size:||7.61 Mb|
|ePub File Size:||19.23 Mb|
|Price:||Free* [*Free Regsitration Required]|
Pressurisation (Ex p) – EN – Atexxo Manufacturing
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. Such equipment measures the integral concentration of the absorbing gas over the optical path in units such as LFL meter for flammable gases.
Where a requirement of this standard conflicts with a requirement of IECthe requirements of this standard take precedence. This standard applies to electrical equipment, parts of electrical equipment and Ex components em It also includes requirements for pressurized enclosures containing a limited release of a flammable substance. Values of chemical properties of materials are provided to assist in the selection of equipment to be used in hazardous areas.
The significant technical changes with respect to the previous edition are identified in the Foreward of the document.
It also 60709-2 the requirements for pressurized enclosures containing a limited release of a flammable substance. Please refer to the Foreword of the document for the significance of changes between IECEdition 1. This seventh edition cancels and replaces the sixth edition, published in The numerous changes are identified in the Foreward of the document. This document also describes a test method intended for use in the determination of the auto-ignition temperature E of a vapour-air mixture or gas-air mixture at atmospheric pressure, so as to permit the selection of an appropriate temperature class of equipment.
Wn Level of Protection “ec”, this standard applies to electrical equipment where the rated voltage does not exceed 15 kV r. Equipment protection by flameproof enclosures “d” IEC Gives the general principles of protection by artificial ventilation.
BS EN Explosive atmospheres. Equipment protection by pressurized enclosure “p”
This 6007-2 does not include the requirements for: Refer to the Foreword of the document for a complete listing of the technical changes between edition 5. It is intended to be applied where there may be an ignition hazard due to the presence of flammable gas or vapour, mixed with air, but it does not apply to: Shut-down or alarm in the event of the flow of the protective gas or the overpressure failing. It describes a test method intended for the measurement of the maximum experimental safe gaps MESG for gas-air mixtures or vapour-air mixtures under normal conditions of temperature and pressure 20 C, ,3 kPa so as to permit the selection of an appropriate group of equipment.
Equipment protection by pressurized room “p” and artificially ventilated room “v” IEC Equipment – General requirements IEC This standard constitutes an extensive technical revision which supersedes BS EN Equipment protection by intrinsic safety “”i”” ” IEC This standard does not include the requirements for: It provides recommendations for the design, installation, maintenance and repair of trace heating systems including associated control and monitoring equipment.
Equipment protection by liquid immersion “o” IEC Click to learn more. 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 Dnwhere the intrinsic safety of the electrical circuits in the explosive fn may depend upon the design and construction of such electrical equipment or parts of such electrical equipment.
Where a requirement of this standard conflicts with a requirement of IECthe requirements of this standard shall take eb.
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. The data in this document have been taken from a number of references which are given in the bibliography.
Pressurisation (Ex p) – EN 60079-2
One advantage of purging and pressurising is that this protection concept also accommodates possible internal releases of flammable gas, vapour or liquid.
The significance of changes between IECEdition 6. This standard supplements and modifies the general requirements of 6009-2 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.
This website is best viewed with browser version of up to Microsoft Internet Explorer 8 or Firefox 3. Type testing, Protected electrical equipment, Leak tests, Safety devices, 60079–2 equipment, Explosive atmospheres, Pressure testing, Electrical safety, Type p protected electrical equipment, Performance testing, Electric enclosures, Design.
It also includes a room located in a non-hazardous area that has an internal source of release of a flammable gas or vapour.
However, data on air-inert mixtures are not tabulated. A large number of minor editorial changes were made along with twelve major fn changes that are detailed in informative Annex ZY.
This sixth edition cancels and replaces the first edition of IEC published in The International Electrotechnical Commission IEC series of 6007-92 atmosphere standards covers a wide array of important considerations when it comes to potentially explosive atmospheres.
Proceed to Checkout Continue Shopping. Additional requirements have been introduced for the protective liquid. Level of Protection “ec” applies to equipment or Ex Components, including their connections, conductors, windings, lamps, and batteries; and also including semiconductors and electrolytic capacitors.
This second edition cancels and replaces the first edition, published inand constitutes ej full technical revision. This fifth edition cancels and replaces the fourth edition, published inand constitutes a technical revision.
Additional information regarding the scope of this document can be found in Clause 1. This standard should be read in conjunction with ISO