BS EN 1263-1-2014 Temporary works equipment Safety nets Safety requirements test methods《临时工程设备 安全网 安全要求和试验方法》.pdf

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1、BSI Standards PublicationBS EN 1263-1:2014Temporary works equipment Safety netsPart 1: Safety requirements, test methodsBS EN 1263-1:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 1263-1:2014. Itsupersedes BS EN 1263-1:2002 which is withdrawn.The UK partic

2、ipation in its preparation was entrusted to TechnicalCommittee B/514/27, Nets and sheets.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for

3、its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 80841 8ICS 13.340.60Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and

4、Strategy Committee on 31 December 2014.Amendments issued since publicationDate Text affectedBS EN 1263-1:2014EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1263-1 December 2014 ICS 13.340.60 Supersedes EN 1263-1:2002English Version Temporary works equipment - Safety nets - Part 1: Safety requi

5、rements, test methods quipements temporaires de chantiers - Filets de scurit -Partie 1 : Exigences de scurit, mthodes dessai Temporre Konstruktionen fr Bauwerke - Schutznetze (Sicherheitsnetze) - Teil 1: Sicherheitstechnische Anforderungen, Prfverfahren This European Standard was approved by CEN on

6、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 alteration. Up-to-date lists and bibliographical references concerning such national standards may

7、 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 t

8、o 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland,

9、 Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Managemen

10、t 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 1263-1:2014 EBS EN 1263-1:2014EN 1263-1:2014 (E) 2 Contents Page Foreword 4 Introduction .5 1 Scope 6 2 Normative references 6 3 Symbo

11、ls and terms and definitions .6 3.1 Symbols 6 3.2 Terms and definitions .8 4 Classification 9 4.1 Nets .9 4.2 Safety nets 9 4.3 Ropes . 12 5 Designation . 14 5.1 Safety net . 14 5.2 Rope . 14 6 Requirements 14 6.1 Construction 14 6.2 Tensile strength of ropes . 16 6.3 Energy absorption capacity of t

12、he test mesh 16 6.4 Static strength of a net sample . 16 6.5 Dynamic strength of safety net System S (net with border rope) . 17 6.6 Dynamic strength of safety net System T (net attached on brackets for horizontal use). 17 6.7 Dynamic strength of safety net System U (net attached to supporting const

13、ruction for vertical use) . 17 6.8 Dynamic strength of safety net System V (net with border rope attached to a gallow type support) . 17 7 Test methods . 17 7.1 General . 17 7.2 Dimensional inspection of the mesh size 18 7.3 Test method for mesh rope . 19 7.4 Test for the static strength of nets 21

14、7.5 Test for the breaking load of border-, tie- and coupling ropes 23 7.6 Test for the energy absorption capacity of the net mesh 23 7.7 Natural ageing test 23 7.8 Artificial ageing test . 26 7.9 Testing the dynamic strength of safety nets System S (net with border ropes) . 31 7.10 Testing the dynam

15、ic strength of safety nets System T (nets attached on brackets for horizontal use 32 7.11 Testing the dynamic strength of safety nets System U (net attached to supporting framework for vertical use . 35 7.12 Testing the dynamic strength of safety nets System V (net with border rope attached to a gal

16、low type support) . 36 7.13 Test report . 37 8 Marking and labelling . 38 9 Handling instructions . 38 10 Conformity . 38 BS EN 1263-1:2014EN 1263-1:2014 (E) 3 Annex A (informative) Prototype assessment . 39 Annex B (informative) On-going production inspection . 40 B.1 On-going production inspection

17、 40 B.2 Annual inspection of test mesh . 41 Bibliography 42 BS EN 1263-1:2014EN 1263-1:2014 (E) 4 Foreword This document (EN 1263-1:2014) has been prepared by Technical Committee CEN/TC 53 “Temporary works equipment”, the secretariat of which is held by DIN. This European Standard shall be given the

18、 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 some of the elements of this document may be the subje

19、ct of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1263-1:2002. This European Standard is one of a series of standards as listed below: EN 1263-1, Temporary works equipment Safety nets Part 1: Safety requir

20、ements, test methods EN 1263-2, Temporary works equipment Safety nets Part 2: Safety requirements for the erection of safety nets The significant changes incorporated in this revision are: a) replacement of Figure 4; b) addition of a new rope denominated “W” in Table 2; c) deletion of designation fo

21、r nets; d) change of designation for ropes; e) complete revision of Clause 7 (test methods), incorporation of the description of a new vertical test rig and new figures for the mash samples; f) revision of dimensional inspection of the mesh size; g) replacement of Figure 9 and Figure 10 with new fig

22、ures in 7.7.4.2 (interpretation of the results). 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, F

23、ormer 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 the United Kingdom. BS EN 1263-1:2014EN 1263-1:2014 (E) 5

24、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 devices to catch falling persons on working scaffolds, as side protec

25、tion 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 contrast to being secured by personal protective equipment agains

26、t falls from heights 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 plastic deformations of the net.

27、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 carried out over a period betw

28、een 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 subjected to respective loading by

29、 persons falling from height the safety nets should be replaced, if appropriate. BS EN 1263-1:2014EN 1263-1:2014 (E) 6 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 a

30、nd test methods 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 European Standard is not applicable to the installation of safety nets. For a Europea

31、n Standard covering the installation of safety nets, see EN 1263-2. 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 cited applies. For undated references

32、, the latest edition of the referenced document (including any amendments) applies. EN 1263-2:2014, Temporary works equipment Safety nets Part 2: Safety requirements for the erection of safety nets EN ISO 1806, Fishing nets Determination of mesh breaking force of netting (ISO 1806) EN ISO 2307, Fibr

33、e ropes Determination of certain physical and mechanical properties (ISO 2307) EN ISO 4892-1, Plastics Methods of exposure to laboratory light sources Part 1: General guidance (ISO 4892-1) EN ISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression

34、testing machines Verification and calibration of the force-measuring system (ISO 7500-1) ISO 554, Standard atmospheres for conditioning and/or testing Specifications 3 Symbols and terms and definitions 3.1 Symbols The mainly used symbols are given in Table 1. BS EN 1263-1:2014EN 1263-1:2014 (E) 7 Ta

35、ble 1 Main symbols Number Symbol Denomination Unit 1 1general safety factor for production and handling of the material; 1= 1,5 2 2specific coefficient for the deterioration due to ageing, see 7.7 or 7.8, 2never less than 1 and shows at least 12 months service life 3 lMmesh size mm 4 EAaction value

36、of energy for a net of class A (characteristic value) kJ 5 EBaction value of energy for a net of class B (characteristic value) kJ 6 E0value of breaking energy under reference conditions obtained from the recorded data of a net sample in the as new state kJ 7 E12calculated value of breaking energy u

37、nder reference conditions of a net sample after 12 months of ageing kJ 8 E6calculated value of breaking energy as of a net sample after six month of ageing kJ 9 Evifrom recorded test data calculated value of energy capacity of the mesh sample i subjected to ageing adjacent to the maximum tensile for

38、ce FviJ 10 Eojfrom recorded test data calculated value of energy capacity of the mesh sample j in the as new state adjacent to the maximum tensile force FvjJ 11 Avidefinite integral in the interval 0 v vviobtained from the recorded data of the breaking test with the mesh sample i subjected to ageing

39、, see Figure 12 cm212 Aojdefinite integral in the interval 0 v v0j,obtained from the recorded data of the breaking test with the mesh sample j in the as new state, see Figure 13 cm213 Fvirecorded maximum tensile force of the mesh sample i subjected to ageing N 14 Fojrecorded maximum tensile force of

40、 the mesh sample j in the as new state N 15 vviextension at maximum tensile force Fviof the mesh sample i (i = 1,10) subjected to ageing m 16 vojextension at maximum tensile force Fojof the mesh sample j (j = 1,10) in the as new state m NOTE “as new state” means: of the same properties as a new one.

41、 BS EN 1263-1:2014EN 1263-1:2014 (E) 8 3.2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.2.1 mesh series of ropes arranged in a basic geometric pattern (either in squares or diamonds) with four knots or connecting points, forming a net 3.2.2 ne

42、t connection of meshes 3.2.3 safety net net supported by a border rope, other supporting elements or a combination of these designed to 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 connectio

43、ns 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 perimeter 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 couplin

44、g rope rope that joins two or more safety nets together 3.2.9 test mesh section of mesh which is attached into the safety net and which can be removed to determine any deterioration due to ageing without impairing the performance of the net Note 1 to entry: The test mesh should consist of at least t

45、hree meshes. 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 energy absorption capacity and mesh size BS EN 1263-1:2014EN 1263-1:2014 (E) 9 3.2.

46、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 nominated values of energy which may act on the net (EA and

47、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 NOTE The above values EAand EBrepresent the characteristic values of energy and do not include the general safety factor , and not the specific coeffi

48、cient 2for the deterioration due to ageing. These coefficients are described in 6.3. 4.2 Safety nets Four systems of safety net shall be identified: 1) System S: Safety net with border rope (for example, see Figure 1), the smallest size shall be at least 35 m2. For rectangular safety nets the length

49、 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 determined by national regulations where applicable. 2) System T: Safety net attached on brackets for horizontal use (for example, see Figure 2); 3) System U: Safety net attached to supporting framework for vertical use (for example, see Figure 3); 4) System V: Safety net with border rope attached to a gallow type support (for example, see Figure