《BS-EN-1263-1-2002.pdf》由会员分享,可在线阅读,更多相关《BS-EN-1263-1-2002.pdf(40页珍藏版)》请在三一文库上搜索。
1、BRITISH STANDARD BS EN 1263-1:2002 Safety nets Part 1: Safety requirements, test methods The European Standard EN 1263-1:2002 has the status of a British Standard ICS 13.340.99 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 1263-1:2002 This British Standard, having been
2、 prepared under the direction of the Building and Civil Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 13 May 2002 BSI 13 May 2002 ISBN 0 580 39696 7 National foreword This British Standard is the official English
3、 language version of EN 1263-1:2002. It supersedes BS EN 1263-1:1997 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee B/514, Access and support equipment, to Subcommittee B/514/27, Nets and sheets, which has the responsibility to: A list of organizatio
4、ns represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards
5、Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard do
6、es not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and p
7、romulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 36, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since pub
8、lication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1263-1 April 2002 ICS 13.340.99Supersedes EN 1263-1:1997 English version Safety nets - Part 1: Safety requirements, test methods Filets de scurit - Partie 1: Exigences de scurit, mthodes dessai Schutznetze (Sicherhei
9、tsnetze) - Teil 1: Sicherheitstechnische Anforderungen, Prfverfahren This European Standard was approved by CEN on 16 November 2001. 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 sta
10、ndard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other la
11、nguage made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
12、Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of
13、exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1263-1:2002 E EN 1263-1:2002 (E) 2 Contents page Introduction.5 1Scope 5 2Normative references 5 3Symbols and definitions .5 3.1Symbols5 3.2Terms and definitions6 4Classification7 4.1Nets .7 4.2Safety
14、nets8 4.3Ropes10 5Designation.11 5.1Net .11 5.2Safety net12 5.3Rope12 6Requirements.13 6.1Construction.13 6.1.1Mesh rope.13 6.1.2Net 13 6.1.3Border rope.14 6.1.4Other ropes.14 6.1.5Test mesh .14 6.1.6Supporting framework.14 6.2Tensile strength of ropes14 6.2.1Border rope.14 6.2.2Tie rope.14 6.2.3Cou
15、pling rope.15 6.3Emergency absorption capacity of the test mesh15 6.4Static strength of a net sample.15 6.4.1Breaking energy.15 6.4.2Displacement15 6.5Dynamic strength of safety net System S (net with border rope).15 6.6Dynamic strength of safety net System T (net attached on brackets for horizontal
16、 use)15 6.7Dynamic strength of safety net System U (net attached to supporting construction for vertical use)15 6.8Dynamic strength of safety net System V (net with border rope attached to a gallow type support).16 7Test methods16 7.1General16 7.2Dimensional inspection of the mesh size .16 7.3Test m
17、ethod for mesh rope.16 7.3.1Selection of test samples16 7.3.2Test apparatus16 7.3.3Test method16 7.4Test for the static strength of nets.17 7.4.1Selection of test samples17 7.4.2Test mass and test apparatus 17 7.4.3Procedure .18 7.5Test for the breaking load of border-, tie- and coupling ropes.18 7.
18、6Test for the energy absorption capacity of the net mesh18 7.7Natural ageing test.18 7.7.1General18 7.7.2Selection of test samples18 7.7.3Test apparatus18 EN 1263-1:2002 (E) 3 7.7.4Determination of the capacity of the test mesh19 7.8Artificial ageing test.21 7.8.1General21 7.8.2Selection of test sam
19、ples21 7.8.3Chamber for artificial ageing21 7.8.4Determination of the capacity of the net mesh.26 7.9Testing the dynamic strength of safety nets System S (net with border ropes) 26 7.9.1Selection of test samples26 7.9.2Test mass .26 7.9.3Test Procedure.27 7.10Testing the dynamic strength of safety n
20、ets System T (nets attached on brackets for horizontal use.28 7.10.1Selection of test samples28 7.10.2Test mass .28 7.10.3Test Procedure.29 7.11Testing the dynamic strength of safety nets System U (net attached to supporting framework for vertical use .30 7.11.1Selection of test samples30 7.11.2Test
21、 mass and test apparatus30 7.11.3Test Procedure.31 7.12Testing the dynamic strength of safety nets System V (net with border rope attached to a gallow type support)31 7.12.1Selection of test samples31 7.12.2Test mass .31 7.12.3Test Procedure.31 7.13Test report32 8Marking and labelling33 9Handling in
22、structions33 10Conformity33 Annex A (informative) Prototype assessment34 Annex B (informative) Ongoing production inspection 35 Bibliography36 EN 1263-1:2002 (E) 4 Foreword This document (EN 1263-1:2002) has been prepared by Technical Committee CEN /TC 53, “Temporary works equipment“, the secretaria
23、t 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 October 2002, and conflicting national standards shall be withdrawn at the latest by October 2002. This document supersed
24、es EN 1263-1:1997. This European Standard is one of a series of standards as listed below: EN 1263-1, Safety nets Part 1: Safety requirements, test methods. EN 1263-2, Safety nets Part 2: Safety requirements for the erection of safety nets. According to the CEN/CENELEC Internal Regulations, the nati
25、onal standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kin
26、gdom. The annexes A and B are informative. EN 1263-1:2002 (E) 5 Introduction Safety nets for use in construction and other assembly work, e.g. as devices to catch falling persons during the construction of halls and bridges, in open line construction as side protection, as anti-fall devices or devic
27、es to catch falling persons on working scaffolds, as side protection for safety scaffolds at roofs and in tunnelling can be chosen as a technically suitable and economic solution to catch persons falling from a height. They serve to protect from deeper falls even when large areas in plan occur. In c
28、ontrast to being secured by a lanyard and harness the mobility of persons working above the area protected by safety nets is not impaired during all work activity. Moreover, the use of safety nets has the advantage to catch persons falling from a height more softly than lanyards caused by large plas
29、tic deformations of the net. Attention should be paid to the fact that the ageing sensitivity of safety nets due to exposure to UV requires that they are exposed to open air condition a limited time only and then be withdrawn from service. For the evaluation of the ageing behaviour tests have been c
30、arried out over a period between 6 months and 24 months which apply to the most commonly used materials polyamide and polypropylene. The specifications of the limit values of breaking energy are based on these tests and on drop tests with articulated dummies and test spheres. After having been subje
31、cted to respective loading by persons falling from height the safety nets should be replaced, if appropriate. 1 Scope This European Standard applies to safety nets and their accessories for use in construction and assembly work to protect from deeper fall. It specifies safety requirements and test m
32、ethods and is based on the performance characteristics of polypropene and polyamide fibres. Materials used in nets should have no significant reduction in mechanical properties between 10 C and + 40 C. This standard is not applicable to the installation of safety nets. For a European Standard coveri
33、ng the installation of safety nets see EN 1263-2. 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 d
34、ated 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 919, Fibre ropes for
35、general service Determination of certain physical and mechanical properties. EN 1263-2, Safety nets Part 2: Safety requirements for the erection of safety nets. EN ISO 7500-1, Metallic materials - Verification of static uniaxial testing machines - Part 1: Tension/compression testing machines (ISO 75
36、00-1:1999). ISO 554, Standard atmospheres for conditioning and/or testing Specifications. ISO 1806, Fishing nets Determination of mesh breaking load of netting. ISO 4892-1, Plastics Methods of exposure to laboratory light sources Part 1: General guidance. 3 Symbols and definitions 3.1 Symbols The ma
37、inly used symbols are given in Table 1. EN 1263-1:2002 (E) 6 Table 1 Main symbols NumberSymbolDenominationUnit 1?1general safety factor for production and handling of the material; ?1 = 1,5 ? 2?2 specific coefficient for the deterioration due to ageing, see 7.7 and/or 7.8, ?2 never less than 1 and s
38、hows at least 12 months service life ? 3lMmesh sizemm 4EAaction value of energy for a net of class A (characteristic value) kJ 5EBaction value of energy for a net of class B (characteristic value) kJ 6E0value of breaking energy under reference conditions obtained from the recorded data of a net samp
39、le in the as new state kJ 7E12calculated value of breaking energy under reference conditions of a net sample after 12 months of ageing kJ 8E6calculated value of breaking energy as of a net sample after six month of ageing kJ 9Evifrom recorded test data calculated value of energy capacity of a mesh s
40、ample subjected to ageing adjacent to the breaking point at ?vv, min, see line 15 J 10Eojfrom recorded test data calculated value of energy capacity of a mesh sample in the as new state adjacent to the breaking point at ?v0, min, see line 16 J 11Avidefinite integral in the interval 0 ? ?v ? ?vv, min
41、 obtained from the recorded data of the breaking test with the mesh sample i subjected to ageing, see Figure 9 cm2 12Aojdefinite integral in the interval 0 ? ?v ? ?v0, min obtained from the recorded data of the breaking test with the mesh sample j in the as new state, see Figure 10 cm2 13Fvirecorded
42、 tensile force at the breaking point ?vv, min (see line 15) of the sample i subjected to ageing N 14Fojrecorded tensile force at the breaking point ?vo, min (see line 16) of the sample j in the as new state N 15?vv, minsmallest failure elongation (minimum breaking point) of the mesh samples i (i = 1
43、,2,3) subjected to ageing m 16?vo, minsmallest failure elongation (minimum breaking point) of the mesh samples j (j = 1,2,3) in the as new state M NOTE“as new state“ means : of the same properties as a new one. 3.2 Terms and definitions For the purposes of this European Standard, the following terms
44、 and definitions apply: 3.2.1 mesh a series of ropes arranged in a basic geometric pattern (either in squares or diamonds) forming a net 3.2.2 net connection of meshes EN 1263-1:2002 (E) 7 3.2.3 safety net net supported by a border rope, other supporting elements or a combination of these designed t
45、o catch persons falling from a height 3.2.4 mesh size distance between two knots or connections of mesh rope measured from the centre to the centre of these connections 3.2.5 mesh rope rope from which the meshes of a net are manufactured 3.2.6 border rope rope which passes through each mesh at the p
46、erimeter of a net and determines the perimetric dimensions of the safety net 3.2.7 tie rope rope used for securing the border rope to a suitable support 3.2.8 coupling rope rope that joins two or more safety nets together 3.2.9 test mesh mesh which is worked into the safety net and which can be remo
47、ved to determine any deterioration due to ageing without impairing the performance of the net 3.2.10 supporting framework structure to which nets are attached and which contributes to the absorption of kinetic energy in case of dynamic actions 3.2.11 class classification for the net respective to en
48、ergy absorption capacity and mesh size 3.2.12 system assembly of safety net components, which forms an equipment to be used in accordance with the instruction manual 4 Classification 4.1 Nets This standard specifies four classes of net with maximum mesh sizes (lM, see Figure 6) and energy acting on
49、the net (EA and EB) as follows: ? Class A 1:EA = 2,3 kJ;lM = 60 mm ? Class A 2:EA = 2,3 kJ;lM = 100 mm ? Class B 1:EB = 4,4 kJ;lM = 60 mm ? Class B 2:EB = 4,4 kJ;lM = 100 mm NOTEThe above values EA and EB represent the characteristic values of energy and do not include the general safety factor ?, and not the specific coefficient for the deterioration due to ageing ?2. These coefficients are described in 6.3. EN 1263-1:2002 (E) 8 4.2 Safety nets Four systems of safety net shall be identified: System S:Safety net with border rope (see Figure 1) Syste
链接地址:https://www.31doc.com/p-3739250.html