iTeh StandardsiTeh Standards
EURUSD
Your shopping cart is empty.
SIST

SIST EN 14491:2006/AC:2009

(Corrigendum)

Dust explosion venting protective systems

Dust explosion venting protective systems

TC/AFNOR/DIN - Various editorial improvements including the corrections of 1st Corrigendum EN 14491:2006/AC:2008, WI 00305C03

Schutzsysteme zur Druckentlastung von Staubexplosionen

Systèmes de protection par évent contre les explosions de poussières

Zaščitni sistemi za razbremenitev tlaka eksplozije prahu

General Information

Status
Withdrawn
Publication Date
09-Feb-2009
Withdrawal Date
27-Aug-2012
ICS
13.230 - Explosion protection
Technical Committee
EXP - Electrical apparatus for explosive atmospheres
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
28-Aug-2012
Due Date
20-Sep-2012
Completion Date
28-Aug-2012
Directive
94/9/EC - Directive 94/9/EC of the European Parliament and the Council of 23 March 1994 on the approximation of the laws of the Member States concerning equipment and protective systems intended for use in potentially explosive atmospheres
Mandate
M/BC/CEN/92/46 - Standardization mandate assigned to CEN/CENELEC concerning equipment and protective systems intended for use in potentially explosive atmospheres
Ref Project
EN 14491:2006/AC:2008 - Dust explosion venting protective systems

Relations

Corrects
SIST EN 14491:2006 - Dust explosion venting protective systems
Effective Date
01-Mar-2009
Replaced By
SIST EN 14491:2012 - Dust explosion venting protective systems
Effective Date
01-Oct-2012
Corrects
SIST EN 14491:2006 - Dust explosion venting protective systems
Effective Date
08-Jun-2022

Buy Standard

EN 14491:2006/AC:2009EN 14491:2006/AC:2009
PreviousNext
Corrigendum
EN 14491:2006/AC:2009
English language
4 pages
sale 10% off
Preview
sale 10% off
Preview
e-Library read for
1 day

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Schutzsysteme zur Druckentlastung von StaubexplosionenSystèmes de protection par évent contre les explosions de poussièresDust explosion venting protective systems13.230Varstvo pred eksplozijoExplosion protectionICS:Ta slovenski standard je istoveten z:EN 14491:2006/AC:2008SIST EN 14491:2006/AC:2009en,fr,de01-marec-2009SIST EN 14491:2006/AC:2009SLOVENSKI
STANDARD



SIST EN 14491:2006/AC:2009



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14491:2006/ACNovember 2008Novembre 2008November 2008ICS 13.230English versionVersion FrançaiseDeutsche FassungDust explosion venting protective systemsSystèmes de protection par évent contreles explosions de poussièresSchutzsysteme zur Druckentlastung vonStaubexplosionenThis corrigendum becomes effective on 19 November 2008 for incorporation in the three officiallanguage versions of the EN.Ce corrigendum prendra effet le 19 novembre 2008 pour incorporation dans les trois versionslinguistiques officielles de la EN.Die Berichtigung tritt am 19.November 2008 zur Einarbeitung in die drei offiziellen Sprachfassungender EN in Kraft.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members.Tous droits d'exploitation sous quelque forme et de quelque manière que ce soit réservés dans le monde entier auxmembres nationaux du CEN.Alle Rechte der Verwertung, gleich in we
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

This May Also Interest You

SIST
SIST-TP CEN/TR 15281:2023(Main)
Potentially explosive atmospheres - Explosion prevention and protection - Guidance on inerting for the prevention of explosions
CEN/TR 15281:2022

Inerting is a measure to prevent explosions. By feeding inert gas into a system which is to be protected against an explosion, the oxygen content is reduced below a certain concentration until no explosion can occur. The addition of sufficient inert gas to make any mixture non-flammable when mixed with air (absolute inerting) is only required in rare occasions. The requirements for absolute inerting will be discussed. Inerting may also be used to influence the ignition and explosion characteristics of an explosive atmosphere.
The guidance given on inerting is also applicable to prevent an explosion in case of a fire.
The following cases are not covered by the guideline:
-   admixture of an inert dust to a combustible dust;
-   inerting of flammable atmospheres by wire mesh flame traps in open spaces of vessels and tanks;
-   fire fighting;
-   avoiding an explosive atmosphere by exceeding the upper explosion limit of a flammable substance.
Inerting which is sufficient to prevent an explosion is not a protective measure to prevent fires, self-ignition, exothermic reactions or a deflagration of dust layers and deposits.

  • Technical report
    63 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST-TP CEN/TR 17838:2022(Main)
Use of plugs of bulk material in screw conveyors and product receivers for explosion isolation
CEN/TR 17838:2022

Screw conveyors are mechanical devices for the continuous move, discharge or variable rate
feeding of bulk materials in form of powder, granules or grain. They are often used
horizontally or at a slight incline to discharge or feed silos, storage bins, cyclones, filter units,
mills or other equipment in many bulk handling industries.
This Technical Report describes requirements on screw conveyors which can in addition be
used as explosion isolation systems to prevent a dust explosion transmission into connected
plant items.
The scope of this technical report is limited to rigid tubular screw conveyors which consist of
a spiral blade coiled around a shaft held in external bearings (the rotating part of the
conveyor is sometimes called “auger”). Additional internal bearings can be necessary if the
tubular screw conveyor exceeds a certain length.

  • Technical report
    19 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN 17624:2022(Main)
Determination of explosion limits of gases and vapours at elevated pressures, elevated temperatures or with oxidizers other than air
EN 17624:2022

This document specifies a test method to determine the explosion limits of gases, vapours and their mixtures, mixed with a gaseous oxidizer or an oxidizer/inert gas mixture at pressures from 1 bar to 100 bar and for temperatures up to 400 °C.

  • Standard
    19 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Draft
    19 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN 15967:2022(Main)
Determination of maximum explosion pressure and the maximum rate of pressure rise of gases and vapours
EN 15967:2022

The European Standard test method is designed to produce measurements of explosion pressure and the maximum explosion pressure, the rate of explosion pressure rise and the maximum rate of explosion pressure rise of a quiescent flammable gas/air/inert mixture in closed volume at ambient temperature and pressure. In this European Standard, the term "gas" includes vapours but not mists. Detonation and decomposition phenomena are not considered in this European Standard.
The pressures and rates of pressure rise measured by the procedures specified in this European Standard are not applicable to flameproof enclosures, that is enclosures intended to withstand an internal explosion and not to transmit it to an external explosive atmosphere, or any other closed volume where the internal geometry can result in pressure piling. Even in an enclosure of relatively simple geometry the disposition of the internal components can lead to rates of pressure rise significantly higher than those measured using this European Standard. This European Standard does not apply to the design and testing of flameproof enclosures in conformity with EN 13463-6 (for non-electrical equipment) and EN 60079-1 (for electrical equipment).

  • Standard
    41 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Draft
    40 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN 14373:2022(Main)
Explosion suppression systems
EN 14373:2021

This document describes the basic requirements for the design and application of explosion suppression systems. This document also specifies test methods for evaluating the effectiveness and the scale up of explosion suppression systems against defined explosions. This document covers:
— general requirements for explosion suppression system components;
— evaluating the effectiveness of an explosion suppression system;
— evaluating the scale up of an explosion suppression system;
— development and evaluation of design tools for explosion suppression systems;
— installation, operation and maintenance instructions for an explosion suppression system.
This document is applicable only to explosion suppression systems intended for the protection of closed, or essentially closed, enclosures in which an explosion could result as a consequence of ignition of an explosible mixture, e.g. dust-air, gas(vapour)-air, dust-gas(vapour)-air and mist-air.
This document is not applicable for explosions of materials listed below, or for mixtures containing some of those materials:
— unstable materials that are liable to dissociate;
— explosive materials;
— pyrotechnic materials;
— pyrophoric materials.

  • Standard
    46 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Draft
    41 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN 15188:2021(Main)
Determination of the spontaneous ignition behaviour of dust accumulations
EN 15188:2020

This European Standard specifies analysis and evaluation procedures for determining self-ignition temperatures (TSI) of combustible dusts or granular materials as a function of volume by hot storage experiments in ovens of constant temperature. The specified test method is applicable to any solid material for which the linear correlation of lg (V/A) versus the reciprocal self-ignition temperature 1/TSI (with TSI in K) holds (i.e. not limited to only oxidatively unstable materials).
This European Standard is not applicable to the ignition of dust layers or bulk solids under aerated conditions (e.g. as in fluid bed dryer).
This European Standard shall not be applied to dusts like recognised explosives that do not require atmospheric oxygen for combustion, nor to pyrophoric materials.
NOTE   Because of regulatory and safety reasons "recognised explosives" are not in the scope of this European Standard. In spite of that, substances which undergo thermal decomposition reactions and which are not "recognised explosives" but behave very similarly to self-ignition processes when they decompose are in the scope. If there are any doubts as to whether the dust is an explosive or not, experts should be consulted.

  • Standard
    35 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Draft
    34 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN ISO 80079-36:2016/AC:2020(Corrigendum)
Explosive atmospheres - Part 36: Non-electrical equipment for explosive atmospheres - Basic method and requirements - Technical Corrigendum 1 (ISO 80079-36:2016/Cor 1:2019)
EN ISO 80079-36:2016/AC:2019

2021-03-25 CV: rejected for OJEU citation but corrigenda are out of EY scope

  • Corrigendum
    5 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN ISO/IEC 80079-34:2020(Main)
Explosive atmospheres - Part 34: Application of quality systems for equipment manufacture (ISO/IEC 80079-34:2018)
EN ISO/IEC 80079-34:2020

This part of ISO/IEC 80079 specifies particular requirements and information for establishing and maintaining a quality system to manufacture Ex equipment productsincluding protective systems in accordance with the Ex certificate. While it does not preclude the use of other quality systems that are compatible with the objectives of ISO 9001:2008 2015 and which provide equivalent results, the minimum requirements shall be in accordance with this standard.

  • Standard
    89 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Draft
    61 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST EN 1127-1:2019(Main)
Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and methodology
EN 1127-1:2019

This document specifies methods for the identification and assessment of hazardous situations leading to explosion and the design and construction measures appropriate for the required safety. This is achieved by: - risk assessment; - risk reduction. The safety of equipment, protective systems and components can be achieved by eliminating hazards and/or limiting the risk, i.e. by: a) appropriate design (without using safeguarding); b) safeguarding; c) information for use; d) any other preventive measures. Measures in accordance with a) (prevention) and b) (protection) against explosions are dealt with in Clause 6, measures according to c) against explosions are dealt with in Clause 7. Measures in accordance with d) are not specified in this document. They are dealt with in EN ISO 12100:2010, Clause 6. The preventive and protective measures described in this document will not provide the required level of safety unless the equipment, protective systems and components are operated within their intended use and are installed and maintained according to the relevant codes of practice or requirements. This document specifies general design and construction methods to help designers and manufacturers in achieving explosion safety in the design of equipment, protective systems and components. This document is applicable to any equipment, protective systems and components intended to be used in potentially explosive atmospheres, under atmospheric conditions. These atmospheres can arise from flammable/combustible substances processed, used or released by the equipment, protective systems and components or from materials in the vicinity of the equipment, protective systems and components and/or from the materials of construction of the equipment, protective systems and components. This document is applicable to equipment, protective systems and components at all stages of its use. This document is only applicable to equipment group II which is intended for use in other places than underground parts of mines and those parts of surface installations of such mines endangered by firedamp and/or combustible dust. This document is not applicable to: 1) medical devices intended for use in a medical environment; 2) equipment, protective systems and components where the explosion hazard results exclusively from the presence of explosive substances or unstable chemical substances; 3) equipment, protective systems and components where the explosion can occur by reaction of substances with other oxidizers than atmospheric oxygen or by other hazardous reactions or by other than atmospheric conditions; 4) equipment intended for use in domestic and non-commercial environments where potentially explosive atmospheres may only rarely be created, solely as a result of the accidental leakage of fuel gas; 5) personal protective equipment covered by Regulation (EU) 2016/425; 6) seagoing vessels and mobile offshore units together with equipment on board such vessels or units; 7) means of transport, i.e. vehicles and their trailers intended solely for transporting passengers by air or by road, rail or water networks, as well as means of transport insofar as such means are designed for transporting goods by air, by public road or rail networks or by water; vehicles intended for use in a potentially explosive atmosphere shall not be excluded; 8) the design and construction of systems containing desired, controlled combustion processes, unless they can act as ignition sources in potentially explosive atmospheres.

  • Standard
    47 pages
    English language
    sale 10% off
    e-Library read for
    1 day
  • Draft
    47 pages
    English language
    sale 10% off
    e-Library read for
    1 day
SIST
SIST-TP CEN/TR 16829:2017+AC:2019(Main)
Fire and explosion prevention and protection for bucket elevators
CEN/TR 16829:2016+AC:2019

This European Technical Report applies to bucket elevators that may handle combustible products capable of producing potentially explosive atmospheres of dust or powder inside the bucket elevator during its operation. The precautions to control ignition sources will also be relevant where the product in the bucket elevator creates a fire risk but not an explosion risk.
For the purposes of this report, a bucket elevator is defined as an item of bulk material handling equipment that carries material in powder form or as coarse products such as whole grain, wood chips or flakes, in a vertical direction by means of a continuous movement of open containers.
This Technical Report specifies the principles of and guidance for fire and explosion prevention and explosion protection for bucket elevators.
Prevention is based on the avoidance of effective ignition sources, either by the elimination of ignition sources or the detection of ignition sources.
Explosion protection is based on the application of explosion venting, explosion suppression or explosion containment and explosion isolation rules specifically adapted for bucket elevators. These specific rules may be based on agreed test methods.
This European Technical Report does not apply to products that do not require atmospheric oxygen for combustion.

  • Technical report
    63 pages
    English language
    sale 10% off
    e-Library read for
    1 day