SIST EN 14975:2007+A1:2010

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bodentreppen - Anforderungen, Kennzeichnung und PrüfungEchelles de grenier - Exigences, marquage et essaisLoft ladders - Requirements, marking and testing97.145LestveLaddersICS:Ta slovenski standard je istoveten z:EN 14975:2006+A1:2010SIST EN 14975:2007+A1:2010en,fr,de01-september-2010SIST EN 14975:2007+A1:2010SLOVENSKI
STANDARD



SIST EN 14975:2007+A1:2010



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 14975:2006+A1
July 2010 ICS 91.060.30 Supersedes EN 14975:2006English Version
Loft ladders - Requirements, marking and testing
Echelles de grenier - Exigences, marquage et essais
Bodentreppen - Anforderungen, Kennzeichnung und Prüfung This European Standard was approved by CEN on 25 November 2006 and includes Amendment 1 approved by CEN on 4 June 2010.
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, 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 © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14975:2006+A1:2010: ESIST EN 14975:2007+A1:2010



EN 14975:2006+A1:2010 (E) 2 Contents Page Foreword . 31Scope . 42Normative references . 43Terms and definitions. 44Maximum load . 75Test methods . 75.1General . 75.1.1Tolerances . 75.1.2Test sequence . 85.1.3Test temperature . 85.2Static load test . 85.3Fatigue test . 95.4Torsion test of rungs or treads . 95.5Handrail test . 95.6Ladder stops test . 115.7Rungs or treads bending test . 116Ladder construction and design . 116.1General . 116.2Climbing angle . 136.3Bearing surface . 136.4Handrails . 136.5Anti-slip surface . 136.6Tread or rung pitch . 136.7Free width between stiles . 136.8Depth of bearing surface . 146.9Distance between the floor and the top of the first rung or tread . 146.10Distance between the last rung or tread and the loft floor . 146.11Distance between a rung or tread and the trapdoor . 146.12Operability . 156.12.1Upward pressure . 156.12.2Descent control . 156.13Sharp edges . 156.14Surface finish . 156.15Feet . 156.16Unintentional opening . 156.17Insulating and/or sealing values . 167Marking . 168User instructions . 16 SIST EN 14975:2007+A1:2010



EN 14975:2006+A1:2010 (E) 3 Foreword This document (EN 14975:2006+A1:2010) has been prepared by Technical Committee CEN/TC 93 “Ladders”, the secretariat of which is held by DIN. 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 January 2011, and conflicting national standards shall be withdrawn at the latest by January 2011. 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 European Standard includes Amendment 1 approved by CEN on 4 June 2010. This document supersedes EN 14975:2006. The start and finish of text introduced or altered by amendment is indicated in the text by tags!" 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 14975:2007+A1:2010



EN 14975:2006+A1:2010 (E) 4 1 Scope This European Standard specifies terms and definitions, product requirements and test methods for the construction and performance of loft ladders. 2 Normative references Not applicable. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 loft ladder ladder designed to be permanently fixed at its top end with sliding or hinged sections permitting it to be lowered to and raised from a lower level to provide access to a loft or similar point at a higher level 3.2 types of loft ladder
3.2.1 concertina loft ladder loft ladder with extendable climbing support NOTE See Figure 1.
Figure 1 — Concertina loft ladder 3.2.2 hinged/folding loft ladder loft ladder with hinged or folded climbing support NOTE See Figure 2. SIST EN 14975:2007+A1:2010



EN 14975:2006+A1:2010 (E) 5
Figure 2 — Hinged/folding loft ladder 3.2.3 sliding loft ladder loft ladder with sliding climbing support 3.2.3.1 push-out sliding loft ladder sliding loft ladder with climbing support to be pushed out NOTE See Figure 3. SIST EN 14975:2007+A1:2010



EN 14975:2006+A1:2010 (E) 6
Figure 3 — Push-out sliding loft ladder 3.2.3.2 pull-out sliding loft ladder sliding loft ladder with climbing support to be pulled out NOTE See Figure 4.
Figure 4 — Pull-out sliding loft ladder SIST EN 14975:2007+A1:2010



EN 14975:2006+A1:2010 (E) 7 3.3 parts of a loft ladder
3.3.1 handrail rail fitted to loft ladder to give user support when climbing or descending loft ladder 3.3.2 trapdoor door giving access to loft or similar point at a higher level NOTE The loft ladder may or may not be attached to the trapdoor. 3.3.3 hinge connecting element between loft ladder or trapdoor and loft or trapdoor casing similar point at a higher level 3.3.4 rung climbing support with a standing surface from front to back of less than 80 mm and more than 20 mm 3.3.5 stile side members to which the rungs, treads or cross-members are fitted 3.3.6 stile hinge connecting element between folding ladder parts 3.3.7 locking device mechanism to prevent unintended sliding out, extending or unfolding of the loft ladder 3.3.8 tread climbing support with a standing surface from front to back equal to or greater than 80 mm 4 Maximum load The requirements are based upon a maximum total load of 150 kg. Loft ladders are designed to be used by one person at a time. 5 Test methods 5.1 General 5.1.1 Tolerances For all tests, unless otherwise stated in the particular test, the following tolerances are permitted as uncertaint
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