EN 1263-2-2014 en Temporary works equipment - Safety nets - Part 2 Safety requirements for the positioning limits《临时工作设备 安全网 第1部分：安全要求 试验方法》.pdf

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1、BSI Standards PublicationBS EN 1263-2:2014Temporary works equipment Safety netsPart 2: Safety requirements for thepositioning limitsBS EN 1263-2:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 1263-2:2014. It supersedes BS EN 1263-2:2002 which is withdrawn.

2、The UK participation in its preparation was entrusted to Technical Committee B/514/27, Nets and sheets.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are

3、responsible for its correct application. The British Standards Institution 2014.Published by BSI Standards Limited 2014ISBN 978 0 580 80842 5ICS 13.340.60Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the St

4、andards Policy and Strategy Committee on 31 December 2014.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 1263-2:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1263-2 December 2014 ICS 13.340.60 Supersedes EN 1263-2:2002English Version Temporary works equipm

5、ent - Safety nets - Part 2: Safety requirements for the positioning limits quipement temporaires de chantiers - Filets de scurit - Partie 2 : Exigences de scurit concernant les limites de montage Temporre Konstruktionen fr Bauwerke - Schutznetze (Sicherheitsnetze) - Teil 2: Sicherheitstechnische Anf

6、orderungen fr die Errichtung von Schutznetzen This European Standard was approved by CEN on 8 November 2014. 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 altera

7、tion. 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

8、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

9、, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDAR

10、DIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1263-2:2014 EBS EN 1263-2:2014EN 1263-2:20

11、14 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Safety requirements 4 4.1 Instruction manual .4 4.2 Fall height .4 4.3 Catching width .5 5 Positioning of system S safety nets 7 5.1 Size of system S safety nets .7 5.2 Positioning fixings .7 5.3 Safety

12、 net linkage 8 5.4 Deformation of the safety net .8 6 Positioning of system T safety nets 9 6.1 Positioning .9 6.2 Safety net linkage 9 6.3 Support frame positioning . 10 7 Positioning of system U safety nets . 10 8 Positioning of system V safety nets . 10 8.1 Position of the upper edge of the safet

13、y net 10 8.2 Safety net linkage . 11 8.3 Positioning 11 Annex A (informative) A-deviations . 12 Bibliography . 13 BS EN 1263-2:2014EN 1263-2:2014 (E) 3 Foreword This document (EN 1263-2:2014) has been prepared by Technical Committee CEN/TC 53 “Temporary works equipment”, the secretariat of which is

14、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 June 2015 and conflicting national standards shall be withdrawn at the latest by June 2015. Attention is drawn to the possibility that

15、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 supersedes EN 1263-2:2002. This European Standard is one of a series of standards as listed below: EN 1263-1, Tempo

16、rary works equipment Safety nets Part 1: Safety requirements, test methods EN 1263-2, Temporary works equipment Safety nets Part 2: Safety requirements for the positioning limits The significant changes incorporated in this revision are: a) revision of Figures 1, 2, 4, and 5; b) complete editorial r

17、evision. 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, Former Yugoslav Republic of Macedonia, Fr

18、ance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 1263-2:2014EN 1263-2:2014 (E) 4 1 Scope This European Standard specifies

19、 safety requirements for the positioning of safety nets in accordance with the manufacturers instruction manual and with the product specifications and for the testing of system S, system T, system U and system V safety nets in accordance with EN 1263-1. Small safety nets of system S according to EN

20、 1263-1 (less than 35 m2and 5,0 m on the shortest side) are not dealt with in this European Standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cit

21、ed applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1263-1:2014, Temporary works equipment Safety nets Part 1: Safety requirements, test methods 3 Terms and definitions For the purposes of this document, the terms and definitions g

22、iven in EN 1263-1:2014 apply. 4 Safety requirements 4.1 Instruction manual For the use and application of safety nets an instruction manual (guidance) in accordance with EN 1263-1:2014, Clause 9 shall be included with each consignment of safety net. This instruction manual shall be available in the

23、language of the user. It shall contain at least the following information: required anchorage forces; maximum fall height; minimum catching width; safety net linkage; minimum distance below the safety net; storage; examination; replacement. In addition to these instructions, special installation ins

24、tructions shall be followed according to the specific application of the net. 4.2 Fall height The fall heights Hi, Heand Hrare defined in Table 1. BS EN 1263-2:2014EN 1263-2:2014 (E) 5 Table 1 Definitions of fall heights Figure Definition Comment Hi1 The vertical distance between the working level b

25、eing safeguarded and the safety net The maximum permissible fall height into a safety net is 6 m from the working level, which means that the maximum nominal fall height from the centre of gravity of a person is 7 m. He1, 2 and 5 The vertical distance between the edge of a working level being safegu

26、arded and the safety net This dimension is to be used to calculate the horizontal projection of the safety net beyond the working level above it. See Table 2. Hr1 The vertical distance between the working level being safeguarded and the 2 m wide border edge of the safety net. Safety nets are less ab

27、le to carry an impact load near the edges of the net. Therefore, the vertical distance at this point shall not exceed 3,0 m. Safety nets should be erected as close as possible below the working level. Each of the fall heights Hiand Heshall not exceed 6,0 m (see Figure 1, Figure 2 and Figure 5). In a

28、ddition to this, the reduced fall height Hrwithin 2 m of the border shall not exceed 3,0 m (see Figure 1). 4.3 Catching width The catching width b is the horizontal distance between the edge of the working area and the edge of the safety net (see Figure 1 and Figure 2). Dependent on the fall height,

29、 the catching width b of the safety net shall not be less than the values given in Table 2. Table 2 Fall heights and required catching widths Fall height He 1,0 m 3,0 m 6,0 m Catching width b 2,0 m 2,5 m 3,0 m BS EN 1263-2:2014EN 1263-2:2014 (E) 6 Dimensions in centimetres Key 1 safety net Figure 1

30、Fall heights and required catching widths of working areas inclined between 0 and 20 If the working area is inclined by more than 20: the catching width b shall be at least 3,0 m; the distance t between the outermost working point and the lowest point of the edge of the safety net shall not exceed 3

31、,0 m (see Figure 2). BS EN 1263-2:2014EN 1263-2:2014 (E) 7 Dimensions in centimetres Key 1 safety net 2 lowest point of the edge of the safety net Figure 2 Fall heights and required catching widths of working areas inclined by more than 20 5 Positioning of system S safety nets 5.1 Size of system S s

32、afety nets For the positioning of system S safety nets the smallest size shall be at least 35 m2. For rectangular safety nets the length of the shortest side shall be at least 5,0 m. Small safety nets (less than 35 m2and 5,0 m on the shortest side) are not part of this standard and should be determi

33、ned by national regulations where applicable. 5.2 Positioning fixings System S safety nets shall be positioned with tie ropes or other devices on anchorage points capable of bearing the characteristic load. For attachment devices other than tie ropes a safety factor of 2 shall be used. The distance

34、between the anchorage points shall be less than 2,5 m. To calculate each anchorage point, the characteristic load P used shall be at least 6 kN with the fall height being 6,0 m. The assumed angle of this load shall be = 45 (see Figure 3). For the calculation of the supporting framework only three ch

35、aracteristic loads of 4 kN, 6 kN and 4 kN shall be considered applied in the most unfavourable way (see Figure 3). BS EN 1263-2:2014EN 1263-2:2014 (E) 8 Figure 3 Examples of characteristic loads at the anchorage points 5.3 Safety net linkage For the linkage of single safety nets, coupling ropes in a

36、ccordance with EN 1263-1 shall be used. The linkage shall be made in such a way that gaps greater than 100 mm do not develop between the edges of the nets. When system S safety nets are linked by overlapping, the minimum overlap shall be at least 2,0 m. 5.4 Deformation of the safety net The maximum

37、deformation of the safety net when rigged according to the test conditions given in EN 1263-1:2014, Clause 7, is shown in Figure 4. NOTE Safety distances below the deformed safety net are not covered by this European Standard. BS EN 1263-2:2014EN 1263-2:2014 (E) 9 Key l span of the safety net (small

38、est side) h vertical distance between anchorage point of the safety net and the working level above Hivertical distance between the safety net and the working level above f0deformation caused by the self-weight of the safety net fmaxmaximum deformation caused by the self-weight of the safety net plu

39、s dynamic load The curves only apply if: f0 0,1 l Hi= h + f0 6,0 m Figure 4 Maximum deformation of the safety net 6 Positioning of system T safety nets 6.1 Positioning System T safety nets shall be erected according to the instruction manual supplied with the consignment. 6.2 Safety net linkage For

40、the linkage of single safety nets, coupling ropes in accordance with EN 1263-1 shall be used. The linkage shall be made in such a way that gaps greater than 100 mm do not develop between the edges of the nets. When system T safety nets are linked by overlapping, the minimum overlap shall be 0,75 m.

41、BS EN 1263-2:2014EN 1263-2:2014 (E) 10 6.3 Support frame positioning The support frame shall be positioned so that the person falling into the safety net does not impact with the frame. 7 Positioning of system U safety nets For positioning limits of system U safety nets, see EN 13374. 8 Positioning

42、of system V safety nets 8.1 Position of the upper edge of the safety net The upper edge of the safety net shall be located at least 1,0 m above the working level (see Figure 5). Dimensions in centimetres Figure 5 Position of the upper edge of the safety net BS EN 1263-2:2014EN 1263-2:2014 (E) 11 8.2

43、 Safety net linkage For the linkage of single safety nets, coupling ropes in accordance with EN 1263-1 shall be used. The linkage shall be made in such a way that gaps greater than 100 mm do not develop between the edges of the nets. For system V safety nets, overlapping shall not be used. 8.3 Posit

44、ioning The safety net shall be attached to “gallow” type system supports at its upper edge and to the building or supporting framework at its lower edge. For the positioning of the net, the following points shall be taken into account: the distance between any two top supports shall not exceed 5,0 m

45、; the supports shall be secured against turning; the distance between the bottom edge anchorage devices for the attachment of the net to the building shall not exceed 0,50 m (see Figure 6); the distance between the anchorage points and the edge of the building shall be at least 0,1 m (see Figure 6);

46、 Dimensions in centimetres Figure 6 Anchorage points for the attachment of the lower edge of the safety net to the building by a border rope the upper edge of the safety net shall be attached to a “gallow” type support by a tie rope (see Figure 7). Figure 7 Attachment of the upper edge of the safety

47、 net to a “gallow” type support with a tie rope BS EN 1263-2:2014EN 1263-2:2014 (E) 12 Annex A (informative) A-deviations A-deviation: National deviation due to regulations, the alteration of which is for the time being outside the competence of the CEN-CENELEC national member. This European Standar

48、d does not fall under any Directive of the EU. In the relevant CEN-CENELEC countries these A-deviations are valid instead of the provisions of the European Standard until they have been removed. Clause Deviation Denmark 4.3 Catching width, Figure 1 Danish Ministry of Labour, Order on the conditions

49、of construction sites and similar work places (Order 589, 22 June 2001, Clauses 19 and 21.1) 4.3 Catching width, Figure 2 Danish Ministry of Labour, Order on the conditions of construction sites and similar work places (Order 589, 22 June 2001, Clauses 19 and 21.1) Clause 6 Positioning of system T safety nets Danish Ministry of Labour, Order on the conditions of construction sites and similar work places (Order 589, 22 June 2001, Clauses 19 and 21.1) Clause 8 Positioning of system V sa