1、STD*BSI BS EN IS0 10807-ENGL 1997 1bZLibb7 Ob00ZZb 593 BRITISH STANDARD Pipework - Corrugated flexible metallic hose asemblies for the protection of electrical cables in explosive atmosphere The European Standard EN IS0 10807 : 1996.has the status of a British Standard ICs 23.040.70; 29.260.20 BS EN
2、 IS0 10807 : 1997 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW STD-BSI BS EN IS0 10807-ENGL 1977 m 1bZqbbS Ob00227 qZT m BS EN IS0 10807 : 1997 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee PSW
3、12, Flexible metallic hose and hose assemblies, upon which the foiowing bodies were represented: British Compressed Gases Association British Rubber Manufacturem Association Ltd. Energy Induskies Council Engineering Equipment and Materials Users Association LP Gas Association Ministry of Defence Uni
4、ted Kingdom Petroleum Industry Association Ltd This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 March 1997 O BSI 1997 Amendments issued since publication AmdNo. ID* I
5、Text affected The following BSI references relate to the work on this standard: Committee reference PSW12 Draft for Comment 93/701502 DC ISBN O 680 26660 6 I l STD-BSI BS EN IS0 1OBO7-ENGL 1777 Lb2qbbS 0b00228 3bb = BS EN IS0 10807 : 1997 Contents Page Committees responsible Inside front cover Natio
6、nal foreword ii Foreword 2 Text of EN 10807 3 * * m O BSI 1997 i STD.BS1 BS EN IS0 L0807-ENGL 1997 m Lb2LIbbS Ob00229 2T2 m BS ISN isu IUEIUI : lYY7 National foreword This British Standard has been prepared by Technical Committee BW12 and is the English language version of EN IS0 10807 : 1996 publis
7、hed by the European Committee for Standardization (CEN). It is identical with IS0 10807 : 1994, Pipmorlc - Cormgatedmle rnetall2c hose assembl b) electric welding (MIG, MAG, TIG), microplasma Adhesive bonding and tin soldering are excluded. welding (MP) or impulse welding. 6 Dimensions and performan
8、ce 6.1 The dimensions and performance of corrugated flexible metallic hose complying with this International Standard are given in table 1. 6.2 The dimensions of end fittings and the lengths of hoses are shown in figure 1 and given in table 2. The external shape of the end fitting may be polygonal o
9、r with notches for a sector wrench, 14 18 23 29 37 48 60 270 280 31 O 320 400 500 600 50 70 90 110 130 175 200 7 Inspection and testing 7.1 General The hose assemblies shall be subjected by the manufacturer to the inspections and tests specified in 7.2 to 7.4 (see also annex BI. 7.2 Dimensional insp
10、ection All hose assemblies shall comply with the requi ments of tables 1 and 2. 7.3 Visual examination All hose assemblies shall comply with the require- ments of 8.3. 7.4 Hydraulic test Each hose assembly shall be subjected to a hydraulic test under a minimum pressure of 40 bar with a nonagressive
11、fluid for a period of at least 60 s. There shall be no leakage. - After testing, the hose shall be cleaned and dried. ic U M 1 O00 1 200 - xxx - XXX - - - xxx - xxx I xxx - xxx STD-BSI BS EN IS0 LOBO7-ENGL 1797 m LbZLibbS Ob0023b 432 m EN IS0 10807 : 1996 max. max. 34 60 40 60 50 70 68 80 82 80 120
12、100 145 130 k L1 1 DN 15 20 25 32 3) 40 50 65 3) 80 100 I I R j2 R 314 R1 R1 114 R 1 1/2 R2 R 2 1/2 R3 R4 n I L End titting Figure 1 Table 2 - Dimensions of end fittings and hose lengths Dimensions in millimetres Total hose lengths3 IAIH 600 1) In accordance with IS0 7-1. 2) The overall length of a
13、flexible hose is the length ordered with a tolerance of : %. 31 DN with limited application. 3 STD-BSI BS EN IS0 1OBO7-ENGL 1777 1b24bb7 Ob00237 377 = EN IS0 10807 : 1996 8 Technical delivery conditions 8.1 Types of delivery Corrugated flexible metallic hose assemblies comply- ing with this Internat
14、ional Standard are delivered ready-fitted with two fixed male end fittings. 8.2 Surface protection Stainless steel end fittings are not protected; non- alloyed steel fittings are galvanized or painted with a zinc-epoxy primer. 8.3 Finish The internal surfaces of the hose and fittings shall be free f
15、rom burrs and sharp edges likely to damage the electric cable. 8.4 Thread In accordance with IS0 7-1 9 Marking 9.1 The corrugated flexible metallic hose assem- blies shall be marked indelibly on one of the end fit- tings, on one of the two rings or on a nondetachable metal collar. The marking shall
16、include the following information: 9.2 By agreement between the parties at the tir- of ordering, other marking conditions may be speci- fied see B.4). IO Designation and ordering 10.1 Required information A corrugated flexible metallic hose assembly comply- ing with this International Standard shall
17、 be desig- nated and/or ordered by following information, in the sequence given: a) the group of five letters: TMFAE (Flexible Metallic Hose in Explosive Atmospheres); b) reference to this International Standard; c) nominal size (see table 1); d) total length, L, in millimetres see tablez); e) natur
18、e of the materials used (see clause 5); f) class of location (see A.21, EXAMPLE Designation of a corrugated flexible metallic hose as- sembly of nominal size DN 40 and length 800 mm, of austenitic stainless steel used in a class B location: TMFAE IS0 10807 DN40 - 800 - stainless steel -B - manufactu
19、rers name or factory mark; 10.2 Optional information - reference to this International Standard; - the last two figures of the year of production; - the class of location (see A.2). EXAMPLE XY - IS0 10807 - 94 - B The order for corrugated metallic hose complying wi this International Standard may al
20、so contain a requesr by the purchaser for: - a special type of marking (see 9.2); - documentation in accordance with IS0 404. 4 STD-BSI BS EN IS0 10807-ENGL 1997 Lb24bb9 b00238 205 m EN IS0 10807 : 1996 Annex A (nor mat ive) instructions for use A.l Scope This annex provides some helpful instruction
21、s on the use of corrugated flexible metallic hose for the pro- tection of electrical cables in flame-resistant instal- lations, regarding the local atmosphere and the choice of materials in relation to the conditions of use. A.2 Classification of locations The local atmosphere in which the corrugate
22、d flexible metallic hose is to be used can be categorized into one of the three classes given in A.2.1 to A.2.3. materials of the corrugated flexible metallic hose as- semblies specified in this International Standard and their components: fittings, welding or brazing filler materials, sleeves, brai
23、ding and hose. EXAM PLES An atmosphere in which ammonia is present is in- compatible with all copper alloys. An atmosphere in which hydrochloric acid is present is incompatible with most stainless steels. In this case, subsequent protection of the hoses should be provided. - A.2.1 Class A: Closed or
24、 covered locations such as A.3 Choice of materials industrial premises, sheds protected from atmos- pheric or corrosive agents (sea air, slightly acid at- mosphere, etc.). A.2.2 Class B: Closed or open locations exposed to I E - e - Materials shall be chosen according to the class of location, as sh
25、own below: - for class A, the materials described in clause 5; - _. - I ic Y- “, * corrosive agents (.e. close to the sea, acid atmos- phere, etc.). - for class B, the materials described in 5.1 b), 5.2 b), 5.3 b) and 5.4; A.2.3 Class C: Any other location containing highly corrosive atmospheres. Co
26、rrosive agents are all those likely to corrode the - for class C, the steels of tvpe 19, 20 and 21 in accordance with IS0 683-12 and welding in ac- cordance with 5.4 b). 5 STDmBSI BS EN IS0 LOBO7-ENGL 1997 Lb24bb9 Ob00237 LYL = EN IS0 10807 : 1996 Annex B (normative) Type approval testing B.l Scope
27、This annex specifies the tests required by officially approved agencies for the type approval of corrugated metallic hose for the protection of electrical cables in flameproof installations. The hose shall be returned to position A in the same manner. This movement shall be repeated thirty times, ea
28、ch 180“ movement representing one bend- ing cycle. The test shall be carried out once for each diameter. B.2 Tests B.2.1 General Each type of hose shall successfully undergo the tests described in B.2.2 and 8.2.3. These tests are carried out on hoses assembled in accordance with figure 1 and table 2
29、, taking four sam- ples per diameter, the minimum length of one of these samples being given in table B.1, those of the other three samples being given in tableB.2 for flexural strength and bending fatigue tests, respec- tively. 6.2.2 Flexural strength test of hoses intended for static installation
30、8.2.2.1 The hose, one of the ends of which shall be held firmly at the end fitting, shall be placed (see fig- ure B.l) between two shaping cylinders of diameter given in table B.l. The horizontal axis of the shaping cylinders shall be in the same plane as the first corrugation of the hose. Care shou
31、ld be taken that the corrugation is not flat- tened or otherwise damaged. The corrugated hose shall be bent over one of the shaping cylinders, with contact made over 90“ of its circumference, to attain I the starting position for the test, position A in figure B.l. Taking approximately 10 s, the end
32、 fitting shall be drawn in a smooth movement through a 180“ arc to the mirror position, with contact made over 90“ of the circumference of the cylinder, position 6 in figure B.l. B.2.2.2 After the flexural strength test, the hose shall be subjected to the hydraulic test in accordanc- with 7.4. 8.2.3
33、 Bending fatigue test on hose B1.3.1 Three samples for each diameter, up to and including DN 50, shall be subjected to the fatigue test as shown in figureB.2. The test shall be carried out at a pressure of 1 bar, with the distance between centres being that given in table B.2. The hose shall be subj
34、ected to repeated bending movements at a rate of 40 cycles/min up to 120 cycles/min in a direction parallel to the axis of the hose, the total displacement being 250 mm. The number of cycles before failure shall not be less than 10 000. B.2.3.2 After the fatigue test, the hose shall t subjected to t
35、he hydraulic test in accordance wi 7.4. B.3 Certification Approved hose shall be delivered with the certificates of conformity supplied by the agency authorized to perform the examination of the products. B.4 Marking Approved hose shall bear the symbols given in 9.1 and also the mark required by the
36、 officially approved agency. 6 STD-BSI BS EN IS0 lOBO7-ENGL 1777 m lb24bb ObOD240 7b3 m EN IS0 10807 : 1996 180 Position B Positlon A I End held flrrnly in fitting Figure B.l - Flexural strength test * ., Kn Nominal size ON Table B.l - Flexural strength test Dimensions in millimetres 15 20 25 32 10
37、50 65 80 100 1) See fiaure 1 bngth of hose between rings I ” 150 150 200 250 320 350 400 500 600 Dlamder of shaplng cylinder 38 50 68 80 1 O0 125 170 200 250 7 STDmBSI BS EN IS0 LUBU7-ENGL 1777 m Lb24bb7 Ob00241 BTT m EN IS0 10807 : 1996 Dimensions in millimeh Bend Maximum radius of Curvatu curvatur
38、e 1 I /” . LHose support Figure B.2 - Fatigue test Table B.2 - Fatigue test Dimensions in millimetres Nominal size DN 15 20 25 32 40 50 Maximum radius of curvature 200 200 200 250 250 350 Length of hose between rings r, ) 853 878 903 1 083 1110 1 474 I 1) see figure 1. I 8 STD-BSI BS EN IS0 10807-EN
39、GL 1997 Lb24bb9 Ob00242 73b EN IS0 10807 : 1996 Annex C (informative) Bibliography I IS0 404:1992, Steel and steel products - General technical delivery requirements. 2 IS0 10380: 1994, Corrugated flexible metallic hose and hose assemblies. * * rn 9 STD-BSI ES EN IS0 LUA07-ENGL 1997 lbZqbb9 Ob00243
40、b72 EN IS0 10807 : 1996 Annex ZA (normative) Normative references to international publications with their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate pla
41、ces in the text and the publications are listed hereafter. For dated 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 refe
42、rred to applies. Publication Year Title EN Year 1995 Is0 6708 1995 Pipework cornponenh - Definition and EN IS0 6708 selection of DN (nominal size) O BSI 1997 STD*BSI BS EN IS0 LOBO7-ENGL 1997 m Lb24bb9 Ob00244 507 m BS EN iSV 10807 : 1997 BSI 389 Chiswick High Road London w4 4AL BSI - British Standa
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