SIST EN 15882-1:2012
(Main)Extended application of results from fire resistance tests for service installations - Part 1: Ducts
Extended application of results from fire resistance tests for service installations - Part 1: Ducts
This European Standard identifies parameters that affect the fire resistance of ducts for ventilation purposes. It also identifies the factors that need to be considered when deciding whether, or by how much a parameter can be extended either positively or negatively when contemplating the fire resistance on an untested variation in the construction. This European Standard, where applicable, gives guidance on additional tests that are needed to extend the field of application. The European Standard gives the principles behind how a conclusion on the influence of specific parameters/constructional details relating to the relevant criteria (E, I, S) can be achieved. This European Standard only applies to ducts tested to EN 1366-1. Duct sections for use other than in fire resisting heating, ventilation and air conditioning (HVAC) systems are not covered by this European Standard. It does not cover ducts used for smoke control which are tested in accordance with EN 1366-8 or EN 1366-9.
Erweiterter Anwendungsbereich der Ergebnisse aus Feuerwiderstandsprüfungen für Installationen - Teil 1: Leitungen
Diese Norm benennt die Parameter, die die Feuerwiderstandsfähigkeit von Leitungen beeinflussen. Diese Norm benennt auch die Faktoren, die berücksichtigt werden müssen, ob und in welchem Ausmaß die Abweichung von dem Parameter in beiden Richtungen verändert werden können, sogar plus oder minus, bei der Betrachtung der Feuerwiderstandsfähigkeit einer ungeprüften oder nicht stabilen Abweichung in der Konstruktion.
Diese Norm, soweit zutreffend, gibt eine Anleitung für zusätzliche Prüfungen, die erforderlich sind, um den Anwendungsbereich zu erweitern.
Die Norm liefert die Grundsätze, nach denen eine Schlussfolgerung über den Einfluss von speziellen Parametern/Konstruktionsdetails, welche die entsprechenden Kriterien (E, I, S) betreffen, gezogen werden kann.
Es ist zu beachten, dass feuerwiderstandsfähige Leitungen unter unterschiedlichen Bedingungen anderen Bauteilen ausgesetzt werden; insbesondere sind sie erheblich unterschiedlichen Druckbedingungen ausgesetzt. Auch wird der Raumabschluss indirekt über Leckage-Messungen beurteilt. Deshalb kann diese Europäische Norm einen anderen Ansatz erfordern als Normen zum erweiterten Anwendungsbereich für andere Bauteile.
Diese Norm gilt nur für Leitungen, die bereits nach EN 1366-1 geprüft worden sind. Diese Norm gilt nicht für Leitungen, die zur Entrauchung verwendet werden.
Application étendue des résultats des essais de résistance au feu - Partie 1 : Conduits résistants au feu
La présente Norme européenne identifie les paramètres qui influent sur la résistance au feu des conduits utilisés pour la ventilation. Elle identifie également les facteurs devant être pris en considération lorsqu’il s’agit de décider si, ou dans quelle mesure, un paramètre peut être étendu, que ce soit positivement ou négativement, en examinant la résistance au feu d’une variation non soumise à essai dans la construction.
La présente Norme européenne fournit, le cas échéant, des lignes directrices sur les essais supplémentaires qui sont nécessaires pour étendre le domaine d’application.
La présente Norme européenne indique les principes permettant d’arriver à une conclusion concernant l’influence de paramètres/détails de construction spécifiques pour les critères pertinents (E, I, S).
La présente Norme européenne s’applique uniquement aux conduits soumis à essai conformément à l’EN 1366-1. Les tronçons de conduits destinés à être utilisés à d’autres fins que pour les systèmes de chauffage, ventilation et conditionnement d’air (HVAC) résistants au feu ne sont pas couverts par la présente Norme européenne. Celle-ci ne couvre pas non plus les conduits de désenfumage, qui sont soumis à essai conformément à l’EN 1366-8 ou à l’EN 1366-9.
Razširjena uporaba rezultatov preskusov požarne odpornosti - 1. del: Požarni kanali
Ta evropski standard določa parametre, ki vplivajo na požarno odpornost ventilacijskih kanalov. Določa tudi dejavnike, ki jih je treba upoštevati pri odločanju, ali je pri obravnavi požarne odpornosti nepreskušene različice stavbe mogoče razširiti ali zožiti parameter in za koliko. Ta evropski standard vsebuje navodila o dodatnih preskusih, ki jih je treba izvesti za razširitev področja uporabe. Ta evropski standard določa načela o tem, kako je mogoče doseči sklep o vplivu določenih parametrov/konstrukcijskih lastnosti v zvezi z zadevnimi merili (E, I, S). Ta evropski standard se uporablja za kanale, preskušene v skladu s standardom EN 1366-1. Kanali, ki se ne uporabljajo za sisteme ogrevanja, hlajenja, prezračevanja in klimatizacije (HVAC), niso zajeti v ta evropski standard. Standard ne zajema kanalov, ki se uporabljajo za nadzor dima in so preskušeni v skladu s standardom EN 1366-8 ali EN 1366-9.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Razširjena uporaba rezultatov preskusov požarne odpornosti - 1. del: Požarni kanaliErweiterter Anwendungsbereich der Ergebnisse aus Feuerwiderstandsprüfungen für Installationen - Teil 1: LeitungenApplication étendue des résultats des essais de résistance au feu - Partie 1 : Conduits résistants au feuExtended application of results from fire resistance tests for service installations - Part 1: Ducts91.060.40Dimniki, jaški, kanaliChimneys, shafts, ducts13.220.50Požarna odpornost gradbenih materialov in elementovFire-resistance of building materials and elementsICS:Ta slovenski standard je istoveten z:EN 15882-1:2011SIST EN 15882-1:2012en,fr,de01-maj-2012SIST EN 15882-1:2012SLOVENSKI
STANDARD
SIST EN 15882-1:2012
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15882-1
December 2011 ICS 13.220.50; 91.140.30 English Version
Extended application of results from fire resistance tests for service installations - Part 1: Ducts
Application étendue des résultats des essais de résistance au feu - Partie 1: Conduits résistants au feu
Erweiterter Anwendungsbereich der Ergebnisse aus Feuerwiderstandsprüfungen für Installationen - Teil 1: Leitungen This European Standard was approved by CEN on 22 October 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15882-1:2011: ESIST EN 15882-1:2012
EN 15882-1:2011 (E) 2 Contents Page Foreword . 3Introduction . 41 Scope. 52 Normative references . 53 Terms and definitions . 54 Critical parameters and factors . 64.1 General . 64.2 Common thermal and mechanical parameters and factors . 64.3 Common constructional parameters and factors . 74.4 Specific constructional parameters and factors . 75 Methodology . 86 Requirements, performance criteria and influences . 136.1 Requirements and performance criteria . 136.2 Influences . 136.2.1 Insulation . 136.2.2 Integrity and leakage . 137 Assessment scheme . 147.1 General . 147.2 Requirement for additional tests . 148 Test arrangements and criteria for additional tests . 148.1 Maximum dimensions of ducts which can be classified . 148.2 Closed ducts with pressure differential. 148.3 Open horizontal duct B. 158.4 Open vertical duct B . 159 Evaluation of fire resistance . 159.1 Application of the basic and additional test results . 159.2 Suspension devices . 169.2.1 General . 169.2.2 Dimensioning of suspension devices . 169.2.3 Fixing of suspension devices . 169.2.4 Longitudinal limit of suspension devices . 179.3 Inspection openings/access panels . 179.4 Components within ducts . 179.5 Surface finishes . 179.6 Change in wall or floor thickness . 1710 Extended application report . 18Bibliography . 23 SIST EN 15882-1:2012
EN 15882-1:2011 (E) 3 Foreword This document (EN 15882-1:2011) has been prepared by Technical Committee CEN/TC 127 “Fire safety in buildings”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2012, and conflicting national standards shall be withdrawn at the latest by June 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. This European Standard has the general title Extended application of results from fire resistance tests for service installations and consists of the following parts: - Part 1: Ducts; - Part 2: Dampers; - Part 3: Penetration seals; - Part 4: Linear joint seals. The Enquiry phase of this project (00127162) took place under the reference prEN 15080-10. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN 15882-1:2012
EN 15882-1:2011 (E) 4 Introduction There are a number of practical limitations on the size and design of elements that can be tested by the standard methods of fire resistance test. When these elements are larger, or are of a modified design, there is a necessity to be able to confirm their performance, i.e. whether the classification(s) is (are) given in the classification report in relation to the relevant criteria identified in the Interpretative Document are maintained, without the ability of being able to test them. To achieve this, extended application documents for the various elements are under development. It is not allowed to change any detail of the duct construction. If this is done outside the DiAP1) and EXAP2), the duct has another design and cannot be classified in accordance with EN 13501-3 without further appropriate testing. Before there can be any consideration for extended application the duct shall be tested in accordance with EN 1366-1 to achieve a test result which could generate a classification in accordance with EN 13501-3 at least equal to the classification subsequently required from extended application considerations. The extended application report should be based on the evaluation of one or more fire resistance test reports on the same proprietary construction of duct. A review of the duct construction parameters may indicate that one or more criteria (integrity, insulation, leakage) may be improved by a particular parameter variation. In the case of ducts, this should never lead to an increased classification period for any specific parameter beyond that achieved during any one test.
1) DiAP = Direct field of application. 2) EXAP = Extended field of application. SIST EN 15882-1:2012
EN 15882-1:2011 (E) 5 1 Scope This European Standard identifies parameters that affect the fire resistance of ducts for ventilation purposes. It also identifies the factors that need to be considered when deciding whether, or by how much a parameter can be extended either positively or negatively when contemplating the fire resistance on an untested variation in the construction.
This European Standard, where applicable, gives guidance on additional tests that are needed to extend the field of application. The European Standard gives the principles behind how a conclusion on the influence of specific parameters/constructional details relating to the relevant criteria (E, I, S) can be achieved. This European Standard only applies to ducts tested to EN 1366-1. Duct sections for use other than in fire resisting heating, ventilation and air conditioning (HVAC) systems are not covered by this European Standard. It does not cover ducts used for smoke control which are tested in accordance with EN 1366-8 or EN 1366-9. 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. EN 1363-1, Fire resistance tests — Part 1: General requirements EN 1366-1:1999, Fire resistance tests for service installations — Part 1: Ducts EN 13501-3, Fire classification of construction products and building elements — Part 3: Classification using data from fire resistance tests on products and elements used in building service installations: Fire resisting ducts and fire dampers EN ISO 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts, screws and studs with specific property classes — Coarse thread and fine pitch thread (ISO 898-1:2009) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1363-1 and EN 1366-1 and the following apply. 3.1 self-supporting duct duct constructed from fire protective boards to provide fire resistance without using a conventional steel duct 3.2 fire protected steel duct steel duct with or without external insulation or coating to provide integrity or integrity and insulation in case of fire 3.3 duct system complete system, consisting of the duct sections, duct joints, suspensions and penetration seals SIST EN 15882-1:2012
EN 15882-1:2011 (E) 6 3.4 duct section element of a fire resisting duct constructed to form part of a duct system which has to be fire resistant 3.5 structural supports means of retaining the fire resisting duct section to the building structure 4 Critical parameters and factors 4.1 General The following parameters and factors are considered to affect the fire resistance performance of a duct system and shall be taken into account when determining the field of extended application. The parameters vary depending upon the nature of the element to be considered. The parameters for the common, identifiable forms of duct construction are given in 4.2, 4.3 and 4.4. 4.2 Common thermal and mechanical parameters and factors Table 1 — Factors relating to thermal and mechanical parameters Line Parameter and rule reference Factor a Fire exposure Outside or inside b Changes in pressure (positive or negative) Lower or higher c Change in wall/floor type or thickness Rigid or flexible constructions Greater or lower thickness d Forces at wall/floor penetrations Value of force higher or lower
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EN 15882-1:2011 (E) 7
4.3 Common constructional parameters and factors Table 2 — Factors relating to Common constructional parameters Line Parameter and rule reference Factor a Orientation Vertical, horizontal or sloping b Change in shape Rectangular to circular or oval c Change in height of cross-section Greater or less than tested d Change in width of cross-section Greater or less than tested e Change in diameter of cross-section Greater or less than tested f Protection material Change of material
4.4 Specific constructional parameters and factors Table 3 — Factors relating to Specific constructional parameters Line Parameter and rule reference Factor a Thickness of protection Greater or less than tested b Distance between joints/stiffeners Greater or less than tested c Number of protective layers Greater or less than tested d Change in penetration sealing system around duct Dependant on test data available e Expansion provision Greater or less than tested f Presence of combustible materials within duct Yes or no g Length of vertical ducts between supports Greater or less than tested h Distance and arrangements between the joints of various layers Greater or less than tested, different arrangement i Self-weight of duct Effect on hangers/supports j Length of horizontal duct between supports/hangers Greater or less than tested k Effect of supports on vertical ducts Bending moment, section modulus l Length of duct between flanges/spigots Greater or less than tested m Change of structure of steel ducts (e.g. type of steel, gauge, … etc.) Yes or no n Effect of access panels Yes or no Size of access panels Access panels protected? o Hanger protection and arrangement Greater or less than tested, different arrangement
p Hangers Length Tensile stress Position relative to any duct joint q Bearers Bending stress Shear stress Section modulus r Anchors Type of anchor, chemical or mechanical strength Penetration depth s Compensators Yes or no t Components integrated within the duct (fan cases, silencers etc.) Yes or no u Shape of joints in protection boards or insulation Mitred, butted or rebate edge v Fixing and jointing details Yes or no
SIST EN 15882-1:2012
EN 15882-1:2011 (E) 8 5 Methodology When preparing an extended application for a construction product, the parameters listed in Clause 4 relating to ducts shall be considered in turn and their relevance shall be identified. This can normally be achieved in a tabular manner with using “yes” to identify those parameters that are relevant, and “no” to identify those that are not.
For each relevant parameter the appropriate factors from those given in Clause 4 shall be analysed to establish their influence (positive or negative) on the fire resistance of the duct. In this case, the influence shall be established for integrity and insulation in turn and where appropriate smoke leakage. The analysis shall take the form of considering influence of the proposed variation against: a) The application of the requirements in this European Standard; b) The use of calculations and rules defined in EN 1366-1 or in EN 15882-1. For each factor this analysis shall be transparent and the report shall include the justification.
SIST EN 15882-1:2012
EN 15882-1:2011 (E) 9 Table 4 — Factor influence on criteria Parameter Factors Factor influence on criteria Integrity (E) Insulation (I)Smoke leakage (S)Rules Orientation
Vertical or horizontal See rule See rule See rule Covered by EN 1366-1, shall test in appropriate orientation Fire exposure
Outside or fire inside See rule See rule See rule Covered by EN 1366-1, shall test for both situations Presence of combustible materials within duct (inside) See rule See rule See rule See rule Combustible materials can be used provided they have been included in the test specimen. Combustible materials in the test specimen can be omitted in practice. Changes in negative pressure Increased under-pressure greater than 300 Pa Worse [-E] Worse [-I] Worse [-S] Additional test necessary, see EN 1366-1 Decreased under-pressure OK [=/+E] OK [=/+I] OK [=/+S] Assume that classification will be maintained Positive pressure Greater than 300 Pa (500 Pa, if in DIAP of EN 1366-1) Worse [-E] Worse [-I] Worse [-S] Additional test necessary, see EN 1366-1 Change in shape (e.g. rectangular to circular) See rule See rule See rule See rule Additional test necessary, see EN 1366-1 Pieces of duct for change of directions or cross sections of for separation of airstreams See rule OK [=/+E] OK [=/+I] OK [=/+S] These pieces of duct are covered by the test according to
EN 1366-1 provided the same materials, thickness are used and the same technique of jointing Height of cross-section Increase height Worse [-E] Worse [-I] Worse [-S] Additional test data needed, guidance given in Figure 1 to Figure 4 Decrease height OK [=/+E] OK [=/+I] OK [=/+S] Assume that classification will be maintained Width of cross-section Increase width Worse [-E] Worse [-I] Worse [-S] Additional test data needed, guidance given in Figure 1 to Figure 4 Decrease width OK [=/+E] OK [=/+I] OK [=/+S] Assume that classification will be maintained, if the maximum distance in width between duct wall and stiffeners as well as between two stiffeners shall not exceed the tested distance. Thickness of protection Increase thickness OK [=/+E] OK [=/+I] OK [=/+S] Assume that classification will be maintained unless the thickness is increased for not more than 20 %, subject to checking that supports will take additional weight Decrease thickness Worse [-E] Worse [-I] Worse [-S] Additional test necessary, see EN 1366-1 Length of duct between flanges/spigot Increase length Worse [-E] Worse [-I] Worse [-S] Additional test necessary, with maximum length, see EN 1366-1 Decrease length OK [=/+E] OK [=/+I] OK [=/+S] Assume that classification will be maintained Distance between board joints Increase distance Worse [-E] Worse [-I] Worse [-S] Additional test necessary, see EN 1366-1 Decrease distance OK [=/+E] OK [=/+I] OK [=/+S] Assume that classification will be maintained
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EN 15882-1:2011 (E) 10
Table 4 — Factor influence on criteria (continued) Parameter Factors Factor Influence On Criteria Integrity (E) Insulation (I) Smoke Leakage (S) Rules Change in wall/floor type or thickness increased thickness OK [=/+E] OK [=/+I] OK [=/+S] Assume that classification will be maintained, see 13.7 of EN 1366-1:1999 decreased thickness Worse [-E] Worse [-I] Worse [-S] Additional test necessary, see EN 1366-1 change in wall/floor type see rule See 13.7 of EN 1366-1:1999 change in diameter of cross-section (for circular ducts) increased diameter Worse [-E] Worse [-I] Worse [-S] Additional test necessary, see EN 1366-1 decreased diameter OK [=/+E] OK [=/+I] OK [=/+S] Assume that classification will be maintained, see 13.3 of EN 1366-1:1999 protection material change of material see rule New tests necessary, change of material (chemical composition, density etc.) leads to a different duct system Distance between stiffeners increased distance Worse [-E] Worse [-I] Worse [-S] Additional test necessary, see EN 1366-1 decreased distance OK [=/+E] OK [=/+I] OK [=/+S] Assume that classification will be maintained number of protective layers increased number OK [=/+E] OK [=/+I] OK [=/+S] Assume that classification will be maintained decreased number Worse [-E] Worse [-I] Worse [-S] Additional test necessary, see EN 1366-1 change in penetr
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