SIST EN 13561:2004+A1:2009
(Main)External blinds - Performance requirements including safety
External blinds - Performance requirements including safety
This European Standard specifies the performance requirements which external blinds shall fulfil when fitted to a building. It deals also with the significant hazards for construction, transport, installation, operation and maintenance of the external blinds (see list of significant machine hazards in annex B).
It applies to all external blinds as well as similar products whatever their design and nature of the materials used, as follows and defined in EN 12216:
- folding arm awning, trellis arm awning, pivot arm awning, slide arm awning, vertical roller awning, marquisolette, façade awning, skylight awning, conservatory awning, Dutch awning, insect screen;
- solar screen.
This European Standard does not cover the wind resistance of fixed nor semi-fixed products, e.g. Dutch awnings, fixed or mobile and solar screen. They are not exempt from wind resistance requirements although no test methods have been established at the present time.
The products covered by this European Standard may be operated manually, with or without compensating springs or by means of electric motors (power operated products).
This document is not applicable to external blinds which are manufactured before the date of publication of this document.
Noise aspects are not treated in the standard because this is not considered a safety issue.
Markisen - Leistungs- und Sicherheitsanforderungen
Diese Europäische Norm legt die Leistungsanforderungen fest, die an einem Gebäude befestigte Markisen erfüllen müssen.
Diese Norm behandelt auch signifikante Gefährdungen für Konstruktion, Transport, Einbau, Bedienung und Wartung der Markisen (siehe Liste der signifikanten Gefährdungen in Anhang B).
Diese Norm gilt wie folgt für alle Markisen und ähnliche Produkte, unabhängig von deren Konstruktion und der Art der verwendeten Werkstoffe und wie in EN 12216 definiert:
Gelenkarmmarkise, Kastenmarkise, Scherenarmmarkise, Fallarmmarkise, Senkrechtmarkise,
Markisolette, Fassadenmarkise, Dachflächenfenstermarkise, Wintergartenmarkise, Korbmarkise, Insektenschutz;
Sonnenblende.
Diese Europäische Norm behandelt nicht den Windwiderstand von festen oder teilweise festen Produkten,
z. B. Korbmarkisen, fest oder beweglich, und Sonnenblende. Sie sind nicht von Anforderungen gegen Windwiderstand ausgenommen, obwohl es zz. keine Prüfverfahren dafür gibt.
Die Produkte, die in dieser Europäischen Norm behandelt werden, können manuell bedient werden, mit oder ohne Ausgleichfedern oder mit Elektromotoren (kraftbetätigte Produkte).
Das Dokument gilt nicht für Markisen, die vor dem Ausgabedatum dieses Dokumentes hergestellt wurden.
Lärmschutzaspekte werden in der Norm nicht behandelt, da sie die Sicherheit nicht betreffen.
Stores extérieurs - Exigences de performance, y compris la sécurité
La présente Norme européenne spécifie les exigences de performance que doivent remplir les stores extérieurs
équipant les bâtiments. Elle traite également des risques significatifs liés aux machines relatifs aux opérations de
fabrication, transport, installation, utilisation et de maintenance des stores extérieurs (voir la liste des phénomènes
dangereux significatifs en Annexe B).
Elle s’applique à tous les stores extérieurs dont la liste est donnée ci-après, ainsi qu’aux produits similaires suivants,
quelles que soient leur conception et la nature des matériaux utilisés et définis dans l’EN 12216 :
— store banne, store à projection par pantographe, store à projection à l’italienne, store de façade, store vertical
guidé, store de véranda ou de verrière, store extérieur pour fenêtre de toit, store corbeille, moustiquaire ;
— brise-soleil.
La présente Norme européenne ne traite pas de la résistance au vent des produits fixes ou semi-fixes, comme par
exemple les stores corbeilles, fixes ou mobiles, ou les brise-soleil. Ces produits ne sont pas exemptés d’exigences
relatives à la résistance au vent bien qu’il n’existe pas actuellement de méthode d’essai.
EN 13561:2004+A1:2008 (F)
5
Les produits traités dans la présente Norme européenne peuvent être manoeuvrés manuellement, avec ou sans
ressorts de compensation, ou au moyen de moteurs électriques (produits motorisés).
Le présent document n’est pas applicable aux stores extérieurs fabriqués avant sa date de publication.
!Les aspects relatifs au bruit ne font pas l’objet de la présente norme car le bruit n’est pas considéré comme un
problème de sécurité."
Zunanja senčila - Zahtevane lastnosti, vključno z varnostjo
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Markisen - Leistungs- und SicherheitsanforderungenStores extérieurs - Exigences de performance, y compris la sécuritéExternal blinds - Performance requirements including safety91.060.50Vrata in oknaDoors and windowsICS:Ta slovenski standard je istoveten z:EN 13561:2004+A1:2008SIST EN 13561:2004+A1:2009en,fr,de01-maj-2009SIST EN 13561:2004+A1:2009SLOVENSKI
STANDARD
SIST EN 13561:2004+A1:2009
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13561:2004+A1
October 2008 ICS 91.060.50 Supersedes EN 13561:2004 English Version
External blinds - Performance requirements including safety
Stores extérieurs - Exigences de performance, y compris la sécurité
Markisen - Leistungs- und Sicherheitsanforderungen This European Standard was approved by CEN on 9 February 2004 and includes Amendment 1 approved by CEN on 18 August 2008.
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 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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: rue de Stassart, 36
B-1050 Brussels © 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13561:2004+A1:2008: ESIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 2 Contents Page Foreword.3 Introduction.4 1 Scope.5 2 Normative references.5 3 Terms and definitions.6 4 Wind resistance.7 5 Resistance to water pocket.14 6 Resistance to snow load.15 7 Operating effort.15 8 Design of the operating mechanism — Diagrams HPV ("Human Pull Value").16 9 Misuse.18 10 Mechanical endurance (repeated operation cycles).21 11 Operation in frosty conditions.22 12 Safety in use.22 13 Hygiene, health and environment.26 14 Thermal resistance.26 15 Durability.26 16 Appearance performances.29 17 Handling and storage.30 18 Information for use.30 19 Evaluation of conformity.33 Annex A (normative)
Fabrics - Determination of the elongation of awnings fabrics under a static load - Test method.35 Annex B (normative)
List of significant machine hazards.41 Annex ZA (informative)
Clauses of this European Standard addressing the provisions of EU Construction Products Directive.42 Annex ZB (informative)
!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 98/37/EC"""".46 Annex ZC (informative) !!!!Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC"""".47 Bibliography.48
SIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 3 Foreword This document (EN 13561:2004+A1:2008) has been prepared by Technical Committee CEN/TC 33 “Doors, windows, shutters, building hardware and curtain walling”, the secretariat of which is held by AFNOR. 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 April 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. NOTE Annex ZB is applicable until December 28th, 2009 and Annex ZC is applicable from December 29th, 2009. This document supersedes EN 13561:2004. This document includes Amendment 1, approved by CEN on 2008-08-18. The start and finish of text introduced or altered by amendment is indicated in the text by tags !". This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). !For relationship with EU Directive(s), see informative Annexes ZA, ZB and ZC which are integral parts of this document." This European Standard is a part of a series of standards dealing with blinds and shutters for buildings as defined in EN 12216. This European Standard specifies the requirements for external blinds, the levels of performances and where applicable, the associated classes. It is completed by test standards as well as by standards referring to specific performance requirements. The annexes A and B are normative. This document includes a Bibliography. 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, 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 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 4 Introduction The performances given in this European Standard which illustrate suitability for use, are required for every type of external blind (intrinsic performances). Other performances are only required as a complement (specific performances) and result in specific products. Some of them are described in European Standards (e.g. EN 1522, EN 1523). Others are described in prEN 14500 and prEN 14501 in the process of preparation and deal with important subjects such as thermal comfort, i.e.: solar factor; shading factor; direct solar transmittance; secondary heat transfer factor; solar radiation reduction factor. and visual comfort, i.e.: light control; night privacy; visual contact with the outside; glare control; rendering of colours. NOTE Health and Safety regulations require that the workplace receives as much natural light as is reasonably practical (see EU Directive 89/654/EEC) and protection of operators working with VDV screens against glare control and reflected light (see EU Directive 87/391/EEC). The list of these documents is given in the Bibliography. With the aim of clarifying the intentions of the standard and avoiding doubts when reading it, following assumptions were made related to power operated products while producing it: Negotiations occur between the manufacturer and the purchaser concerning particular conditions for use and places for use such as for nursery schools or for buildings for disabled people which need specific risk analysis; The risk analysis carried out in this European Standard and the significant hazards listed in annex B suppose a normal use or normally predictable use e.g. which excludes deliberate and conscious risks taken by the user (see Interpretative Document “Safety in use” of EU Construction Products Directive). SIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 5 1 Scope This European Standard specifies the performance requirements which external blinds shall fulfil when fitted to a building. It deals also with the significant hazards for construction, transport, installation, operation and maintenance of the external blinds (see list of significant machine hazards in annex B). It applies to all external blinds as well as similar products whatever their design and nature of the materials used, as follows and defined in EN 12216: folding arm awning, trellis arm awning, pivot arm awning, slide arm awning, vertical roller awning, marquisolette, façade awning, skylight awning, conservatory awning, Dutch awning, insect screen; solar screen. This European Standard does not cover the wind resistance of fixed nor semi-fixed products, e.g. Dutch awnings, fixed or mobile and solar screen. They are not exempt from wind resistance requirements although no test methods have been established at the present time. The products covered by this European Standard may be operated manually, with or without compensating springs or by means of electric motors (power operated products). This document is not applicable to external blinds which are manufactured before the date of publication of this document. !Noise aspects are not treated in the standard because this is not considered a safety issue." 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 1050:1996, Safety of machinery – Principles for risk assessment. EN 1070:1998, Safety of machinery – Terminology. EN 1670, Building hardware – Corrosion resistance – Requirements and test methods. EN 1932, External blinds and shutters – Resistance to wind loads – Method of testing. EN 1933, Exterior blinds – Resistance to load due to water accumulation – Test method. EN 12045, Shutters and blinds power operated – Safety in use – Measurement of the transmitted force. EN 12194, Shutters, external and internal blinds – Misuse – Test methods. EN 12216:2002, Shutters, external blinds, internal blinds – Terminology, glossary and definitions. EN 13125, Shutters and blinds – Additional thermal resistance – Allocation of a class of air permeability to a product. EN 13527, Shutters and blinds – Measurement of operating force – Test methods. EN 14201, Blinds and shutters – Resistance to repeated operations (mechanical endurance) – Methods of testing. SIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 6 EN 20105-A02, Textiles – Tests for colour fastness – Part A02: Grey scale for assessing change in colour (ISO 105-A02:1993). EN 20139, Textiles – Standard atmospheres for conditioning and testing (ISO 139:1973). EN 20811, Textiles – Determination of resistance to water penetration – Hydrostatic pressure test. EN 60335-1, Household and similar electrical appliances – Safety – Part 1: General requirements (IEC 60335-1:2001, modified). EN 60335-2-97, Safety of household and similar electrical appliances – Part 2-97: Particular requirements for drives for rolling shutters, awnings, blinds and similar equipment (IEC 60335-2-97:1998, modified). EN 61310-1, Safety of machinery – Indication, marking and actuation – Part 1: Requirements for visual, auditory and tactile signals (IEC 61310-1:1995).
EN ISO 105-B04, Textiles – Tests for colour fastness – Part B04: Colour fastness to artificial weathering – Xenon arc fading lamp test (ISO 105-B04:1994). EN ISO 1421, Rubber- or plastic-coated fabrics – Determination of tensile strength and elongation at break (ISO 1421:1998). EN ISO 10077-1, Thermal performance of windows, doors and shutters – Calculation of thermal transmittance – Part 1: Simplified method (ISO 10077-1:2000). EN ISO 12100-2:2003, Safety of machinery – Basic concepts, general principles for design – Part 2: Technical principles (ISO 12100-2:2003). ISO 9227, Corrosion tests in artificial atmospheres – Salt spray tests. 3 Terms and definitions For the purposes of this European Standard, the terms and definitions in EN 1070:1998 and EN 12216:2002 and the following apply. 3.1 intrinsic performance overall performances of the blind regardless of its application as opposed to specific performance 3.2 specific performance performance which may be additional and complementary to the intrinsic performances and refers to a specific product (for example thermic, etc.) 3.3 curtain part of the product which is set in motion by the operating mechanism and ensures its function 3.4 extension/retraction movement of the curtain resulting in an increase/decrease in the surface area covered 3.5 opening/closing terms used to describe the increase in light (opening) or reduction of light (closing) in an extended position for products with laths, slats or louvres which can be tilted or adjusted SIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 7 3.6 rough operation sharp action on the operating mechanism or directly on the curtain, resulting in excessive speed at the beginning and a sudden stop at the end NOTE Rough operation is only possible if the moving part has significant inertia (mass and speed). 3.7 forced operation excessive force exerted on the operating mechanism or directly on the curtain with the aim of causing movement in spite of resistance to the travel of the curtain 3.8 reversed operation extension or retraction of the curtain occurring in the opposite direction to that intended without use of abnormal force 3.9 winch handle operating mechanism consisting of a reel rotated by an operation handle which allows accumulation of a cord, cable or chain 3.10 gear with crank handle operating mechanism consisting of a gear attached to an axle, a drive shaft, an universal joint, a rotating rod and a crank handle 3.11 one direction movement of the operating mechanism operating mechanism operated by a single cord, belt, etc., extension / retraction being effected by relying on gravity or the potential energy stored up during retraction / extension (respectively) 3.12 endless movement of the operating mechanism operating mechanism operated by a loop, movement in one direction extends the curtain (or tilts the laths) and in the reverse retracts the curtain (or tilts the laths) in the opposite direction 3.13 determination of performance means of verification of the performance relating to the corresponding requirement 4 Wind resistance 4.1 General Under the action of wind, resulting in positive or negative pressure, the blind shall not: a) under the nominal load FN, sustain deformation or deterioration which is detrimental to its correct operation; b) under the safety load FS, cause safety hazard, e.g. be dislodged from its guiding tracks in the case of guided blinds. 4.2 Determination Shall be in accordance with the test methods specified in EN 1932. SIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 8 4.3 Performance requirement 4.3.1 General According to the type of blind, the performance criteria as specified in Tables 1 to 5 shall be met under the action of the nominal load FN and the safety load FS. 4.3.2 Nominal load FN The nominal load FN is specified as follows:
FN = ββββ ×××× p ×××× L ×××× H
(1) where L, H
is the width and height of blind as specified in EN 1932. p is the threshold value of wind test pressure in N/m2 corresponding to the class of wind resistance under consideration (see 4.4). β
is the conversion of the effect of distributed loading relative to those of test loads. It depends on the type of awning (see Tables 1 to 5). β = 0,5 in the case of folding arm awning, trellis arm awning, projecting awning and marquisolette (see Tables 1 to 3). β = 1 in the case of blind with lateral guiderail with or without tension system (see Tables 4 and 5). 4.3.3 Safety load FS For folding arm awning, trellis arm awning, pivot arm awning and marquisolette, a test shall be carried out using a safety load FS, 20 % greater than the nominal load FN, and for which no rupture of the product shall occur. FS = γγγγ ×××× FN with γγγγ = 1,20
(2) The value γ of 1,20 is judged to be representative of the extra load that the product shall be able to support between the appearance of allowable residual deformations (under the nominal load) and the risk of breaking. It takes into consideration that a retractable external blind is not supposed to be extended permanently and shall be retracted if the wind speed becomes higher than the value stated in the technical instructions of the manufacturer corresponding to the class of wind resistance of the blind. Tables 1 to 5 give, for the different blinds, the sequences of loading and the corresponding performances criteria required. SIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 9 Table 1 — Folding and trellis arm awnings — Performance criteria
LOAD PERFORMANCE CRITERIA
FN
= ββββ ×××× p ×××× L ×××× H (ββββ = 0,5) Sequences
Appearance
Operation
Safety 1 Set in horizontal position (tolerance ± 5°)
______
______
______ 2 Extension at ½ H load ½ FN
then load released
______
manual operating effort maintained inside the class
______ 3 Extension at H Measure of reference Zl0, Zr0 (see Table 2)
______
______
______ 4 Direct nominal load FN
Then load released residual vertical movement allowed after releasing load
| Zl1 - Zl0 | ≤ 10 % H
| Zr1 - Zr0 | ≤ 10 % H
| (Zl1 - Zl0) - (Zr1 - Zr0) | ≤ 1 % L
manual operating effort maintained inside the class
for folding arm awning with box, correct closing of box shall be ensured
______ 5 Inversed nominal load -FN
Then load released residual vertical movement allowed after releasing load
| Zl2 - Zl0 | ≤ 10 % H
| Zr2 - Zr0 | ≤ 10 % H
| (Zl2 - Zl0) - (Zr2 - Zr0) | ≤ 1 % Lmanual operating effort maintained inside the class
for folding arm awning with box, correct closing of box shall be ensured
______ SIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 10
Table 1 — Folding and trellis arm awnings — Performance criteria (concluded)
LOAD PERFORMANCE CRITERIA
FN
= ββββ ×××× p ×××× L ×××× H (ββββ = 0,5) Sequences
Appearance
Operation
Safety 6 Safety load FS = 1,2 ×××× FN
______
______
no rupture
Table 2 — Folding and trellis arm awnings — Measurement of reference for sequence 3
Plane of reference
Zl ; Zr: vertical distances taken from the front profile to the horizontal plane of reference at the connection points
Zl0 ; Zr0: measurement of the reference before loading (sequence 3)
Zl1 ; Zr1: measurement after load is released (sequence 4)
Zl2 ; Zr2: distances measured after load is released (sequence 5)
SIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 11 Table 3 — Projecting awning and marquisolette — Performance criteria
LOAD PERFORMANCE CRITERIA
FN = ββββ ×××× p ×××× L ×××× H or FN
= ββββ ×××× p ×××× L (H1 + H2) (ββββ = 0,5) Sequences
Appearance
Operation
Safety 1 Direct nominal load FN
Then load released
no onset of tearing no localised splitting of seams
manual operating effort maintained inside the class
______ 2 Inverse nominal load -FN (blinds with obstructed articulation)
Then load released x obstruction
residual movement allowed after release of load
| Zl2 - Zl0 | ≤ 2% H or 2% H2
| Zr2 - Zr0 | ≤ 2% H or 2% H2 | (Zl2 - Zl0) - (Zr2 - Zr0) | ≤ 1% L
manual operating effort maintained inside the class
______ 3 Direct safety load FS = 1,2 x FN
______
______
no tearing
no rupture 4 Inverse safety load (blocked articulation blinds) -FS = -1,2 x FN
x obstruction
______
______
no tearing
no rupture
SIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 12 Table 4 — Blind with lateral guiderail without tension system a — Performance criteria
LOAD PERFORMANCE CRITERIA
FN
= ββββ ×××× p ×××× L ×××× N (ββββ = 1) Sequences
Appearance
Operation
Safety 1
Direct nominal load FN
Then load released
x obstruction
no onset of tearing the fabric
no rupture of seams
no permanent damage to front profile or guiderails
manual operating effort maintained inside the class
the front profile shall not come out of its guiderails
2
Lifting of front profile by 31 H Alternately block one side and release the other side
x obstruction
no onset of tearing the fabric
no rupture of seams
no permanent damage to front profile or guiderails
manual operating effort maintained inside the class
the front profile shall not come out of its guiderails a
Vertical roller blind, conservatory and façade blind.
SIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 13 Table 5 — Blind with lateral guiderail with tension system a — Performance criteria
LOAD PERFORMANCE CRITERIA
FN
= ββββ ×××× p ×××× L ×××× H (ββββ = 1) H = greatest available height Sequences
Appearance
Operation
Safety 1
Direct nominal load FN
Then load released
no onset of tearing
no rupture of seams
no permanent damage to front profile or guiderails
manual operating effort maintained inside the class
no blocking of the moving part in the side guides
the front profile shall not come out of its guiderails
2
Raise test bar with FN, releasing one end of the test bar alternatively.
no onset of tearing
no rupture of seams
no permanent damage to front profile or guiderails
operation effort maintained inside the class
no blocking of the moving part in the side guides
the front profile shall not come out of its guiderails a
Facade awning, rooflight awning, verandah awning or conservatory awning.
4.4 Classes of wind resistance The classes of wind resistance are given by the threshold values of nominal test pressure p, specified in Table 6; Table 6 — Classes of wind resistance Classes 0 1 2 3 Nominal test pressure p (N/m²) < 40 40 70 110 Safety test pressure 1,2 p (N/m²) < 48 48 84 132
SIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 14 NOTE 1 The classes may be expressed according to the Beaufort scale.
Beaufort scale 4 5 6 V (km/h) (maximum values)
28
38
49 Pressure p (N/m²)
40
70
110
NOTE 2 Class 0 corresponds to either performance not required or not declared or a product that does not fulfil the requirements of class 1. NOTE 3 The test pressure p is linked to the dynamic pressure q due to the wind to be considered by the following relation.
p = αααα q
with αααα = Cpe - Cpi
(3) and Cpe is the pressure coefficient on external face of blind. Cpi is the pressure coefficient on internal face of blind. The coefficient α depends on the type of product and its position. For folding arm awnings, α = 0,6 NOTE 4 For folding blinds, the maximum dynamic pressure q under consideration corresponds to the maximum wind speed compatible with the extended position of the blind. NOTE 5 The conditions to be met in order to fulfil the performance requirement are defined for static loads and do not consider the dynamic effect of repeated loads to which the fabric and the arms are submitted in a real situation. For these reasons, class 2 or class 3 is a general recommendation. 5 Resistance to water pocket 5.1 General This applies to folding arm awning, trellis arm awning and Dutch awning. Under the action of precipitation, the external blind is susceptible to the retention of water forming a pocket of water and shall withstand the corresponding load. 5.2 Determination Shall be in accordance with the test method specified in EN 1933. 5.3 Performance requirement For an incline of 14° corresponding to a slope of 25 % (or for a lesser incline specified by the manufacturer), the fully extended blind shall withstand the force created by a possible retention of water by the fabric (no rupture), or the water shall drain off to avoid forming a pocket of water. After releasing the load and drying of the fabric, the operating force shall be maintained inside the class. SIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 15 The instructions for use supplied by the manufacturer will remind of the necessity of retracting the folding arm awning in the instance of rain if the slope is less than 25 % or less than the value recommended by the manufacturer. 5.4 Performance classes The performance classes are given in Table 7. Table 7 — Resistance to water pocket — Performance classes CLASSES 1 2 Flow 17 l/m²×h 56 l/m²×h
6 Resistance to snow load Apart from fixed products (fixed Dutch awnings) for which the resistance to snow load is justified by calculation according to regulations existing in individual countries, products concerned in this standard are not designed to withstand snow load. 7 Operating effort 7.1 General Does not apply for power operated products. The effort FC necessary to set the curtain in motion in retraction or extension, and tilting the laths (for tilting louvre arrays) is a function of the type of operation. 7.2 Determination Shall be in accordance with the test methods specified in EN 13527. 7.3 Performance requirement and operating effort classes Operating effort FC shall not exceed the values in Table 8. Table 8 — Maximum values Fc for operating effort TYPES OF OPERATION Fc N
Class 1 Class 2 Crank or winch handle a 30 15 Belt, cord or chain a,b 90 50 Rod, vertical plane 90 50 hand
horizontal or sloping plane 50 30 For spring loaded systems, 1,5 Fc may be reached for locking in the fully extended or retracted position. A blind belongs to class 2 if both the operations of moving the blind and tilting the laths belong to class 2. Otherwise the blind is class 1. a
Operation mechanism shall also fulfill the requirements in clause 9. b
One direction movement and endless movement of the operating mechanism.
Particular case for folding arm awning (see Figure 1) SIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 16 The class of operating effort Fc shall be specified by two values: FC = {FCP , FCN}
(4) where FCP
is the maximum value of the peak force, needed to unlock the arms during the first round of the roller tube in retraction, the folding arm awning being in the fully extended position. FCN is the maximum value of the operating force, needed during the rest of travel (retraction and extension). The maximum values for Fc are given in Table 9.
Table 9 — Maximum values for Fc for particular case of folding arm awning
Fc = {FCP , FCN} N CRANK HANDLE Class 1 Class 2 Class 3 Class 4 OPERATION {90 , 30} {60 , 15} {30 , 30} {15 , 15}
NOTE Class 3 and class 4 characterize operations without peak force.
Key 1 Rounds of roller tube 2 FCN value 3 FCP value Figure 1 — Folding arm awning — Characterization of a class of operating force with peak 8 Design of the operating mechanism — Diagrams HPV ("Human Pull Value") 8.1 General Geometrical characteristics of operating mechanisms taking into account the comfort of the operation. SIST EN 13561:2004+A1:2009
EN 13561:2004+A1:2008 (E) 17 8.2 Performance requirement Gear operation Gear with crank or winch handle shall have: a handle R of length less or equal to 0,20 m (R ≤ 0,20 m); a reduction ratio r of the gear less than 1 : 10 (average or mean reduction ratio when, for the same gear, several reductions exist). NOTE A reduction ratio of 1 : 10 means it is necessary to make ten turns of the crank to achieve one rotation of the roller tube or axle. Belt, cord or chain
...
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