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1、BRITISH STANDARD BS EN ISO 15236-3:2007 Steel cord conveyor belts Part 3: Special safety requirements for belts for use in underground installations The European Standard EN ISO 15236-3:2007 has the status of a British Standard ICS 53.040.20 ? Licensed Copy: London South Bank University, London Sout
2、h Bank University, Wed Aug 08 04:03:52 GMT+00:00 2007, Uncontrolled Copy, (c) BSI BS EN ISO 15236-3:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2007 BSI 2007 ISBN 978 0 580 54808 6 National foreword This British Standard is t
3、he UK implementation of EN ISO 15236-3:2007. The UK participation in its preparation was entrusted to Technical Committee PRI/67, Conveyor belts. 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 ne
4、cessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University,
5、Wed Aug 08 04:03:52 GMT+00:00 2007, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 15236-3 July 2007 ICS 53.040.20 English Version Steel cord conveyor belts - Part 3: Special safety requirements for belts for use in underground installations (ISO 15236-3:2007) Co
6、urroies transporteuses cbles dacier - Partie 3: Exigences de scurit particulires aux courroies utilises dans des installations souterraines (ISO 15236-3:2007) Stahlseil-Frdergurte - Teil 3: Besondere Sicherheitsanforderungen fr den Einsatz untertage (ISO 15236-3:2007) This European Standard was appr
7、oved by CEN on 2 June 2007. 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 st
8、andards 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 notifie
9、d to the CEN Management Centre has the same status as the official 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
10、, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, 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 2007 CENAll rights of explo
11、itation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 15236-3:2007: E Licensed Copy: London South Bank University, London South Bank University, Wed Aug 08 04:03:52 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Foreword This document (EN ISO 15236-3:2007) has
12、 been prepared by Technical Committee CEN/TC 188 “Conveyor belts“, the secretariat of which is held by BSI, in collaboration with Technical Committee ISO/TC 41 “Pulleys and belts (including veebelts)“. This European Standard shall be given the status of a national standard, either by publication of
13、an identical text or by endorsement, at the latest by January 2008, and conflicting national standards shall be withdrawn at the latest by January 2008. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Euro
14、pean Standard: 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, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kin
15、gdom. EN ISO 15236-3:2007 Licensed Copy: London South Bank University, London South Bank University, Wed Aug 08 04:03:52 GMT+00:00 2007, Uncontrolled Copy, (c) BSI Reference number ISO 15236-3:2007(E) INTERNATIONAL STANDARD ISO 15236-3 First edition 2007-07-01 Steel cord conveyor belts Part 3: Speci
16、al safety requirements for belts for use in underground installations Courroies transporteuses cbles dacier Partie 3: Exigences de scurit particulires aux courroies utilises dans des installations souterraines EN ISO 15236-3:2007 Licensed Copy: London South Bank University, London South Bank Univers
17、ity, Wed Aug 08 04:03:52 GMT+00:00 2007, Uncontrolled Copy, (c) BSI ii Licensed Copy: London South Bank University, London South Bank University, Wed Aug 08 04:03:52 GMT+00:00 2007, Uncontrolled Copy, (c) BSI iii Contents Page Foreword iv 1 Scope . 1 2 Normative references. 1 3 Terms and definitions
18、. 2 4 Symbols and units 3 5 Belt design. 4 6 Design and construction 5 7 Mechanical requirements. 7 8 Sampling 10 9 Designation . 11 10 Ordering data 11 11 Marking 12 Annex A (informative) Helpful information to be supplied by the purchaser 13 Bibliography. 15 EN ISO 15236-3:2007 Licensed Copy: Lond
19、on South Bank University, London South Bank University, Wed Aug 08 04:03:52 GMT+00:00 2007, Uncontrolled Copy, (c) BSI iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International
20、Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, al
21、so take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committ
22、ees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the poss
23、ibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 15236-3 was prepared by the European Committee for Standardization (CEN) in collaboration with Technical Committee ISO/TC 41, P
24、ulleys and belts (including veebelts), Subcommittee SC 3, Conveyor belts, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement). ISO 15236 consists of the following parts, under the general title Steel cord conveyor belts: Part 1: Design, dimensions and mec
25、hanical requirements for conveyor belts for general use Part 2: Preferred belt types Part 3: Special safety requirements for belts for use in underground installations Part 4: Vulcanized belt joints EN ISO 15236-3:2007 Licensed Copy: London South Bank University, London South Bank University, Wed Au
26、g 08 04:03:52 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 1 Steel cord conveyor belts Part 3: Special safety requirements for belts for use in underground installations 1 Scope This part of ISO 15236 specifies the performance and constructional requirements applicable to conveyor belts for undergroun
27、d mining having steel cords in the longitudinal direction as reinforcement. The requirements for design and construction apply to the design of single belts as well as the design of complete type series such as those covered in ISO 15236-2. Steel cord belts in accordance with this part of ISO 15236
28、are intended for use underground in coal mines and in other applications where the highest demands for safety against fire and explosion hazards have to be complied with. NOTE At present the requirements can only be met by the use of compounds based on chloroprene rubber for the covers as well as fo
29、r the bonding rubber. 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 amendments) applies. ISO
30、37, Rubber, vulcanized or thermoplastic Determination of tensile stress-strain properties ISO 703, Conveyor belts Transverse flexibility (troughability) Test method ISO 4649:2002, Rubber, vulcanized or thermoplastic Determination of abrasion resistance using a rotating cylindrical drum device ISO 76
31、23, Steel cord conveyor belts Cord-to-coating bond test Initial test and after thermal treatment ISO 8094, Steel cord conveyor belts Adhesion strength test of the cover to the core layer ISO 7590:2001, Steel cord conveyor belts Methods for the determination of total thickness and cover thickness ISO
32、 7622-2, Steel cord conveyor belts Longitudinal traction test Part 2: Measurement of tensile strength ISO 2062, Textiles Yarns from packages Determination of single-end breaking force and elongation at break EN 13827, Steel cord conveyor belts Determination of the lateral and vertical displacement o
33、f steel cords EN 14973, Conveyor belts for use in underground installations Electrical and flammability safety requirements EN ISO 15236-3:2007 Licensed Copy: London South Bank University, London South Bank University, Wed Aug 08 04:03:52 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 2 3 Terms and defi
34、nitions For the purposes of this document, the following terms and definitions apply. 3.1 edge width bk thickness of rubber between the outer cord and the belt edge See Figure 1. 3.2 breaker transverse reinforcement in the conveyor belt, normally of a textile material, attached both above and below
35、or either above or below the layer of longitudinal cords at a distance of at least 1 mm and considered to be part of the cover See Figure 2. NOTE Adapted from ISO 7590:2001, 2.1. 3.3 weft transverse reinforcement in the conveyor belt, normally of steel wires, attached both above and below or either
36、above or below the layer of longitudinal cords at a distance of less than 1 mm and considered to be part of the belt core See Figure 3. NOTE Adapted from ISO 7590:2001, 2.2. EN ISO 15236-3:2007 Licensed Copy: London South Bank University, London South Bank University, Wed Aug 08 04:03:52 GMT+00:00 2
37、007, Uncontrolled Copy, (c) BSI 3 4 Symbols and units See Table 1. Table 1 Symbols and units Symbol Explanation Unit B Belt width mm Fa Pull-out force of cord per cord length N/mm Fbs Breaking strength of cord taken from cured belt kN Fv Pull-out force of cord per cord length after thermal treatment
38、 N/mm KN Minimum (nominal) breaking strength per width of belt N/mm bk Calculated edge width mm bt Supporting belt width mm d Cord diameter mm e See Figure 4 mm F Deflection (troughability) mm hm Median cord height according to EN 13827 mm n Number of cords s1 Nominal belt thickness (see ISO 7590) m
39、m s2 Cover thickness carrying side mm s3 Cover thickness pulley side mm s4 Thickness of layer between breaker and layer of longitudinal cords mm s5 Thickness of layer between weft and layer of longitudinal cords mm s6 Thickness of belt core mm t Cord spacing/pitch mm h1 Number of cords positioned wi
40、thin a range of hm u 1 mm as a percentage of the total number of cords % h2 Number of cords positioned within a range of hm of from 1,0 mm to 1,5 mm and expressed as a percentage of the total number of cords % h3 Percentage of cords with hm 1,5 mm % EN ISO 15236-3:2007 Licensed Copy: London South Ba
41、nk University, London South Bank University, Wed Aug 08 04:03:52 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 4 5 Belt design 5.1 Standard type Conveyor belts conforming to this part of ISO 15236 contain steel cords surrounded by a layer of core rubber. This belt core is protected on top and bottom by
42、 cover layers (see Figure 1). 5.2 Conveyor belting having transverse reinforcements Requirements for steel cord conveyor belts having breakers are illustrated in Figure 2 and requirements relating to weft are illustrated in Figure 3. 5.3 Belt core The thickness of the belt core (carcass), s6, for al
43、l belt types is defined as follows: s6 = s1 s2 s3 s6 = d Figure 1 Cross section of standard belt s4 = W 1 mm. s6 = d (see Table 1). Key 1 breaker a Including the breaker. Figure 2 Belt cross section with breaker EN ISO 15236-3:2007 Licensed Copy: London South Bank University, London South Bank Unive
44、rsity, Wed Aug 08 04:03:52 GMT+00:00 2007, Uncontrolled Copy, (c) BSI 5 s5 = 500 u 1 000 2 1 000 u 2 000 3 2 000 u 3 500 4 3 500 u 5 000 5 5 000 u 7 000 6 7 000 u 10 000 7 for each additional 5 000 m 1 9 Designation The symbol ST shall signify the material (steel cords) used for the tension member i
45、n the longitudinal direction. This symbol shall be followed by the nominal tensile strength of the belt in newtons per millimetre (N/mm) belt width (see Table 2). Breaker transverse reinforcements shall be designated by the cover thickness followed by T (for textile) or S (for steel). Weft transvers
46、e reinforcements shall be designated by the letter S (for steel) or T (for textile), after the ST sign, to indicate the material of the weft and the place where it is applied. EXAMPLE 1 A 1 400 m steel cord conveyor belt (ST) of 1 600 mm width, a minimum tensile strength of 5 000 N/mm belt width, co
47、ver thickness of 12 mm on the carrying side and 8 mm on the pulley side, of grade V and conforming the safety requirements of EN 14973:2006, class C2: 1400 m steel cord conveyor belt, ISO 15236-3 - 1600 ST 5000/12 + 8 V/class C2 EXAMPLE 2 A 900 m steel cord conveyor belt (ST) of 1 400 mm width, a mi
48、nimum tensile strength of 2 500 N/mm belt width, cover thickness of 10 mm on the carrying side and 8 mm on the pulley side, of grade V, with transverse reinforcements (breaker) in the cover thickness of the carrying and pulley sides, consisting of textile material and conforming the safety requireme
49、nts of EN 14973:2006, class C1: 900 m steel cord conveyor belt, ISO 15236-3 - 1400 ST 2500/10T + 8T V/class C1 EXAMPLE 3 A 1 000 m steel cord conveyor belt (ST) of 800 mm width, a minimum tensile strength of 800 N/mm belt width, cover thickness of 10 mm on the carrying side and 6 mm on the pulley side of grade V, with transverse reinforcements (weft) on the carrying and pulley sides, consisting of steel and conforming the safety r