1、BRITISH STANDARDBS EN 1829-2:2008High-pressure water jet machines Safety requirements Part 2: Hoses, hose lines and connectorsICS 97.080g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g3
2、8g50g51g60g53g44g42g43g55g3g47g36g58IncorporatingcorrigendumFebruary 2011BS EN 1829-2:2008This British Standard waspublished under the authorityof the Standards Policy andStrategy Committee on 30 May 2008 BSI 2011ISBN 978 0 580 74717 5National forewordThis British Standard is the UK implementation o
3、f EN 1829-2:2008,incorporating corrigendum February 2011.The UK participation in its preparation was entrusted to Technical CommitteeMCE/6, Pumps and pump testing.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to inc
4、lude all the necessary provisions of acontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity fromlegal obligations.30 June 2011 Implementation of CEN corrigendumFebruary 2011: Modification of 6.1.1Amendments/corrigenda issued since publi
5、cationDate Comments EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1829-2April 2008ICS 97.080 Incorporating corrigendum February 2011English VersionHigh-pressure water jet machines - Safety requirements - Part 2:Hoses, hose lines and connectorsMachines jet deau haute pression - Prescriptions desc
6、urit - Partie 2 : Tuyaux flexibles, lignes de tuyauteriesflexibles et lments de raccordementHochdruckwasserstrahlmaschinen - SicherheitstechnischeAnforderungen - Teil 2: Schluche, Schlauchleitungen undVerbindungselementeThis European Standard was approved by CEN on 23 February 2008.CEN members are b
7、ound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the C
8、EN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same statu
9、s as theofficial 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, Slo
10、vakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reservedworldwide for
11、 CEN national Members.Ref. No. EN 1829-2:2008: EEN 1829-2:2008 (E) 2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative references 6 3 Terms and definitions .6 4 List of significant hazards 6 5 Safety requirements and/or protective measures7 6 Verification of the safety requirements and/o
12、r protective measures.8 7 Information for use 10 Annex ZA (informative) 12 Annex ZB (informative) 13 Bibliography 14 BS EN 1829-2:2008EN 1829-2:2008 (E) 3 Foreword This document (EN 1829-2:2008) has been prepared by Technical Committee CEN/TC 197 “Pumps”, the secretariat of which is held by AFNOR. T
13、his 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 2008, and conflicting national standards shall be withdrawn at the latest by October 2008. Attention is drawn to the possibility that some of
14、 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 has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and sup
15、ports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative annexes ZA and ZB, which are an integral part of this document. EN 1829 consists of the following parts, under the general title High-pressure water jet machines Safety requirements: Part 1: Machi
16、nes Part 2: Hoses, hose lines and connectors 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, German
17、y, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 1829-2:2008EN 1829-2:2008 (E) 4 Introduction This European Standard is a type C standard as
18、stated in EN ISO 12100-1. The machinery concerned and the extent to which hazards, hazardous situations and hazardous events are covered are indicated in the scope of this European Standard. When provisions of this type C standard are different from those which are stated in type A or B standards, t
19、he provisions of this type C standard take precedence over the provisions of the other standards, for machines that have been designed and built according to the provisions of this type C standard. BS EN 1829-2:2008EN 1829-2:2008 (E) 5 1 Scope This European Standard applies to hoses, hose lines and
20、connectors intended to be used with high-pressure water jet machines within the scope of prEN 1829-1. This European Standard deals with all significant hazards, hazardous situations and events relevant to the equipment in the scope, when it is used as intended and under conditions of misuse which ar
21、e reasonably foreseeable by the manufacturer (see clause 4). This European Standard deals with safety requirements to minimise the significant hazards which can arise from assembling, operating and servicing of hoses, hose lines and connectors for use with high pressure water jet machines (see claus
22、e 5). NOTE 1 This European Standard does not cover leak shields since they are not part of a hose line. The hazard due to scalding from hot liquid or from irritation / burning of any added chemicals is not covered in this European Standard. This European Standard is not applicable to hoses, hose lin
23、es and their accessories, which are manufactured before the date of its publication as EN. NOTE 2 For products of similar application that are outside of the scope of this European Standard and for which there is no alternative document available the relevant Clauses of this European Standard may be
24、 used. BS EN 1829-2:2008EN 1829-2:2008 (E) 6 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any am
25、endments) applies. prEN 1829-1:2007, High-pressure water jet machines Safety requirements Part 1: Machines EN ISO 1402:1996, Rubber and plastics hoses and hose assemblies Hydrostatic testing (ISO 1402:1994) EN ISO 4672:1999, Rubber and plastics hoses Sub-ambient temperature flexibility tests (ISO 46
26、72:1997) EN ISO 6803, Rubber or plastics hoses and hose assemblies Hydraulic-pressure impulse test without flexing (ISO 6803:1994) EN ISO 12100-1:2003, Safety of machinery - Basic concepts, general principles for design Part 1: Basic terminology, methodology (ISO 12100-1:2003) EN ISO 12100-2, Safety
27、 of machinery - Basic concepts, general principles for design Part 2: Technical principles (ISO 12100-2:2003) ISO 7010:2003, Graphical symbols Safety colours and safety signs Safety signs used in workplaces and public areas 3 Terms and definitions For the purposes of this document, the terms and def
28、initions given in EN ISO 12100-1:2003, prEN 1829-1:2007 and the following apply. 3.1 burst pressure static pressure that destroys the hose line and allows the liquid to escape 3.2 interconnected hose lines several hose lines which have been connected to each other 3.3 connector safety devices parts
29、or components to restrain movement of the hose line if the connector fails (e.g. locking collars, hose sleeves, etc.) 4 List of significant hazards 4.1 General This Clause contains all the significant hazards, hazardous situations and events, as far as they are dealt with in this European Standard,
30、identified by risk assessment as significant for this type of machinery and which require action to eliminate or reduce the risk. 4.2 Hazards due to bursting or leaking of hoses Hazards can occur when a hose bursts or leaks. The escaping stream of liquid can cause physical damage and also a sudden r
31、epositioning of the hose line in a dangerous manner (whip). BS EN 1829-2:2008EN 1829-2:2008 (E) 7 4.3 Hazards due to failure of connectors Hazards can occur when a connector fails. The escaping stream of liquid can cause physical damage and also a sudden repositioning of the hose line in a dangerous
32、 manner (whip). 4.4 Hazards due to errors by the operator Hazards can occur if the operator uses incompatible substances or incompatible components. Hazards can also occur if the operator exceeds the limits of use specified by the manufacturer (e.g. too high pressure, too high tensile stress). 4.5 H
33、azards due to change in length of hose line Hazardous situations occur when there is a sudden change of pressure in the hose line causing a change in length resulting in the operators losing their firm hold. 5 Safety requirements and/or protective measures 5.1 General Hoses, hose lines and their con
34、nectors shall comply with the safety requirements and/or protective measures of this Clause. In addition, they shall be designed according to the principles of EN ISO 12100-2 for relevant but not significant hazards, which are not dealt with by this European Standard. Hoses, hose lines, and connecto
35、rs have to feature a certain structure in order to guarantee safe operation when used properly. They must not bear any risks for the operator or for the workplace and its environment. The design of any connector safety devices has to provide safe operational performance to eliminate any risk or haza
36、rd for the operator or their environment. However, improper use of a hose line or the connectors may result in hazardous situations and must be avoided. NOTE Correct assembly of hose lines requires specific knowledge and skills and also specific equipment. 5.2 Requirements for compatibility of compo
37、nents The hoses and connectors combined to hose lines have to match each other in terms of structure, composition, and design. NOTE Hoses of one manufacturer do not necessarily match connectors of another manufacturer. 5.3 Mechanical requirements All components of a hose line as well as the connecto
38、rs and the hose line itself shall not fail under the burst pressure specified by the manufacturer. 5.4 Requirements concerning the maximum allowable working pressure for hose lines For hose lines with maximum allowable working pressure up to or equal to 3 000 bar the burst pressure shall be at least
39、 2,5 times the maximum allowable working pressure. For hose lines with maximum allowable working pressure above 3 000 bar the burst pressure shall be at least two times the maximum allowable working pressure. (See also EN ISO 7751.) 5.5 Thermal requirements The hose lines shall be suitable for opera
40、ting temperatures above -10 C and below +70 C. BS EN 1829-2:2008EN 1829-2:2008 (E) 8 5.6 Requirements concerning change in length of hose lines Any change in length shall not exceed +/- 2 % of the original length when subjected to the maximum allowable working pressure. 5.7 Requirements for tensile
41、strength of hose lines The hose lines shall withstand a tensile force equivalent to that induced by a pressure equal to 1,5 times the maximum allowable working pressure or 1 000 N whichever is the lower value. 5.8 Requirements for loosening connectors Measures shall be taken against the hazards of t
42、he unintentional loosening of connectors whilst the hose line is under pressure. One method is a design where the presence of pressure becomes apparent when starting loosening, for example by the use of swivel nuts with at least two axial relief bores. If sufficient technical measures are not possib
43、le the manufacturer shall provide appropriate warnings and instructions (see Clause 7). NOTE For maximum allowable working pressure under 500 bar, standard hydraulic connectors are considered to satisfy this requirement. Pin nuts (swivel nuts which are fixed with a stainless steel pin) at connectors
44、 are only permissible up to 500 bar maximum allowable working pressure. 5.9 Requirements for connector safety devices The need for connector safety devices to restrain movement of the hose line if the connector fails shall be defined on the basis of an assessment of the related risk, within the limi
45、ts of the intended use of the machines for what the hose lines are intended for. In particular, for applications with an input to the drive for the pressure generator exceeding 40 kilowatts or a working pressure exceeding 500 bar the use of connector safety devices is mandatory for any place where s
46、ignificant presence of persons is foreseeable. Where technically not possible (e.g. pipe cleaning) alternative measures shall be considered and where necessary instructions shall be given in the information for use. The fixing provisions of the connector safety devices shall be designed and construc
47、ted for withstanding the foreseeable mechanical constraints. 6 Verification of the safety requirements and/or protective measures 6.1 Tests for hose lines 6.1.1 General The tests consist of: test 1: Leakage test (see 6.1.2) test 2: Change in length test (see 6.1.3) test 3: Cold-bend test (see 6.1.4)
48、 test 4: Burst pressure test (see 6.1.5) test 5: Impulse test (see 6.1.6) BS EN 1829-2:2008EN 1829-2:2008 (E) 9 test 6: Tensile test (see 6.1.7) test 7: Proof pressure hold test (see 6.1.8) The tests 1 to 6 can be type tests combined with a verification of the conformity of individual products to th
49、e type. 6.1.2 Leakage test The leakage test shall be conducted according to EN ISO 1402:1996, Clause 7.4. 6.1.3 Change in length test The change in length test shall be conducted according to EN ISO 1402. 6.1.4 Cold bend test The cold bend test shall be conducted according to EN ISO 4672:1999, Clause 4. The test temperature shall be -10 C 2 C. 6.1.5 Burst pressure test The burst pressure test shall be conducted according to EN ISO 1402 6.1.6 Impulse test The imp
