1、BRITISH STANDARDBS EN 61386-21:2004Conduit systems for cable management Part 21: Particular requirements Rigid conduit systemsICS 29.120.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g
2、3g38g50g51g60g53g44g42g43g55g3g47g36g58+A 1:20101National forewordThis British Standard is the UK implementation of EN 61386-21:2004+A11:2010. It is identical to IEC 61386-21:2002. It supersedes BS EN 61386-21:2004, which is withdrawn.The UK participation in its preparation was entrusted to Technica
3、l Committee PEL/213, Cable management.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 necessary provisions of a contract. Users are responsible for its correct application. Compliance with a Britis
4、h Standard cannot confer immunity from legal obligations. BS EN 61386-21:2004+A11:2010This British Standard was published under the authority of the Standards Policy and Strategy Committee on 19 May 2004 BSI 2011Amendments/corrigenda issued since publicationDate Comments 30 June 2011 Implementation
5、of CENELEC amendment A11:2010: modification of CENELEC forewordISBN 978 0 580 71475 7EUROPEAN STANDARD EN 61386-21:2004+A11A11NORME EUROPENNE EUROPISCHE NORM December 2010 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komi
6、tee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61386-21:2004 E ICS 29.120.10 Supersedes EN 50086-2-1:1995 + A11:1998Incorporates Cor
7、rigendum April 2004English version Conduit systems for cable management Part 21: Particular requirements Rigid conduit systems (IEC 61386-21:2002) Systmes de conduits pour la gestion du cblage Partie 21: Rgles particulires Systmes de conduits rigides (CEI 61386-21:2002) Elektroinstallationsrohrsyste
8、me fr elektrische Energie und fr Informationen Teil 21: Besondere Anforderungen fr starre Elektroinstallationsrohrsysteme (IEC 61386-21:2002) This European Standard was approved by CENELEC on 2003-09-23. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate th
9、e 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 be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exist
10、s in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electr
11、otechnical committees of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. For
12、eword The text of the International Standard IEC 61386-21:2002, prepared by SC 23A, Cable management systems, of IEC TC 23, Electrical accessories, was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 61386-21 on 2003-09-23. This European Standard supersedes EN 50086-2-
13、1:1995 + corrigendum February 2001 + A11:1998 + A11:1998/corrigendum February 2001. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2004-10-01 latest date by which the nationa
14、l standards conflicting with the EN have to be withdrawn (dow) 2008-06-30 This part 21 supplements or modifies the corresponding clauses of EN 61386-1. Where a particular clause or subclause of part 1 is not mentioned in this part 21, that clause or subclause applies as far as is reasonable. Where t
15、his part 21 states “addition“, “modification“ or “replacement“, the relevant text of part 1 is to be adapted accordingly. Subclauses, tables and figures which are in addition to those in part 1 are numbered starting with 101. Additional annexes are lettered AA, BB, etc. A conduit system which compli
16、es with this standard is deemed safe for use when installed in accordance with national wiring regulations, whilst applying the manufacturers installation instructions and conduit classification. In this standard, the following print types are used: - requirements: in roman type; - test specificatio
17、ns: in italic type; - notes: in smaller roman type. Annexes ZAA and ZBB have been added by CENELEC. The contents of the corrigendum of April 2004 have been included in this copy. _ Endorsement notice The text of the International Standard IEC 61386-21:2002 was approved by CENELEC as a European Stand
18、ard without any modification. _ Page 2This part 21, which specifies particular requirements for rigid conduit systems, is to be used in conjunction with EN 61386-1:2008; it may also be used in conjunction with EN 61386-1:2004 until EN 61386-1:2004 is withdrawn, the date of the withdrawal being no la
19、ter than 2011-06-01. BS EN 61386-21:2004+A11:2010EN 61386-21:2004+A11:2010 (E)This amendment (affecting only the foreword) has been issued to allow the use of EN 61386-21:2004 in conjunction with EN 61386-1:2008. Attention is drawn to the possibility that some of the elements of this document may be
20、 the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement (d
21、op) 2011-12-01 ywhrsofngwith the amendment have to be withdrawn (dow) 2013-12-01 Page 3BS EN 61386-21:2004+A11:2010EN 61386-21:2004+A11:2010 (E)Foreword to amendment 1 This amendment to the European Standard EN 61386-21:2004 was prepared by the Technical Committee CENELEC TC 213, Cable management sy
22、stems. It was submitted to the Unique Acceptance Procedure and was accepted by CENELEC as amendment A11 to EN 61386-21:2004 on 2010-12-01. CONTENTS 1 Scope.5 2 Normative references5 3 Definitions 5 4 General requirements .5 5 General conditions for tests 5 6 Classification 5 7 Marking and documentat
23、ion 5 8 Dimensions.6 9 Construction .7 10 Mechanical properties.7 11 Electrical properties 9 12 Thermal properties .9 13 Fire hazard .10 14 External influences .10 15 Electromagnetic compatibility10 Annex ZA (normative) Normative references to international publications with their corresponding Euro
24、pean publications16 Annex ZAA (normative) Special national conditions 16 Annex ZBB (informative) A-deviations .17 Figure 101 Bending apparatus for metallic and composite conduits.11 Figure 102 Gauge for checking the minimum inside diameter of the conduit system after impact, bending, collapse and re
25、sistance to heat tests.12 Figure 103 Bending apparatus for non-metallic and composite conduit13 Figure 104 Arrangement for collapse test .14 Table 101 Thread lengths.6 Table 102 Maximum entry diameter and minimum entry length details 7 Page 4BS EN 61386-21:2004+A11:2010EN 61386-21:2004+A11:2010 (E)C
26、ONDUIT SYSTEMS FOR CABLE MANAGEMENT Part 21: Particular requirements Rigid conduit systems 1 Scope This clause of part 1 is applicable, except as follows: Addition: This part of IEC 61386 specifies the requirements for rigid conduit systems. 2 Normative references This clause of part 1 is applicable
27、. 3 Definitions This clause of part 1 is applicable. 4 General requirements This clause of part 1 is applicable. 5 General conditions for tests This clause of part 1 is applicable. 6 Classification This clause of part 1 is applicable, except as follows: 6.1.1 1, 6.1.2 1, 6.1.3 2, 6.1.3 3, 6.1.3 4, 6
28、.1.4 1 and 6.1.5 1 are not applicable. NOTE Rigid conduit systems according to 6.1.1 2 and 6.1.2 2 and classification 1X from 6.2.1, table 1 are not allowed in France. 7 Marking and documentation This clause of part 1 is applicable, except as follows: Addition: 7.1.101 The conduit shall be marked in
29、 accordance with 7.1 along its entire length at regular intervals of preferably 1 m but not longer than 3 m and each length shall be marked at least once. Compliance is checked by inspection. Page 5BS EN 61386-21:2004+A11:2010EN 61386-21:2004+A11:2010 (E)7.1.102 The manufacturer shall document for t
30、he system the minimum inside diameter and the classification in accordance with clause 6. Compliance is checked by inspection. 8 Dimensions Replacement: 8.1 Threads and outside diameters shall comply with IEC 60423. Compliance is checked by means of the gauges specified in IEC 60423. 8.2 Threadable
31、conduits and threadable conduit fittings, except terminating conduit fittings, shall comply with table 101. Non-threadable conduit fittings, except fittings which are part of a conduit system declaring tensile strength, shall comply with table 102. The minimum inside diameter of the conduit system s
32、hall be as declared by the manufacturer. Compliance is checked by measurement. Table 101 Thread lengths External thread Internal thread Size Minimum length mm Minimum length mm 6 8 10 12 16 20 25 32 40 50 63 75 05,5 06,5 08,5 10,5 12,5 14,0 17,0 19,0 19,0 19,0 19,0 19,0 06,5 07,5 09,5 11,5 13,5 15,0
33、 18,0 20,0 20,0 20,0 20,0 20,0 Page 6BS EN 61386-21:2004+A11:2010EN 61386-21:2004+A11:2010 (E)Table 102 Maximum entry diameter and minimum entry length details External thread Internal thread Size Maximum entry diameter mm Minimum entry length mm 6 8 10 12 16 20 25 32 40 50 63 75 06,5 08,5 10,5 12,5
34、 16,5 20,5 25,5 32,6 40,7 50,8 63,9 75,9 06,0 08,0 10,0 12,0 16,0 20,0 25,0 30,0 32,0 42,0 50,0 50,0 9 Construction This clause of part 1 is applicable. 10 Mechanical properties This clause of part 1 is applicable, except as follows: 10.4 Bending test Replacement: Conduits which are declared by the
35、manufacturer as being bendable are tested in accordance with 10.4.101, 10.4.102 or 10.4.103. 10.4.101 Metallic conduits 10.4.101.1 Conduit sizes 16, 20 and 25 are subjected to a bending test by means of the apparatus shown in figure 101. Testing of other sizes is in accordance with the manufacturers
36、 instructions. 10.4.101.2 Samples having a length equal to 30 times the nominal diameter, are bent so that when released, they have an angle of (90 5), so that the inside radius of the bend is equal to six times the nominal diameter. 10.4.101.3 For conduits with welded seams, six samples are tested,
37、 three with the seam on the outside of the bend, three with the seam on the side. Page 7BS EN 61386-21:2004+A11:2010EN 61386-21:2004+A11:2010 (E)10.4.101.4 After the test: the basic material of the conduits and the protective coating of the conduits shall show no cracks visible to normal or correcte
38、d vision without magnification; seams, if any, shall not have opened; the section of the conduit shall not have distorted unduly. The distortion of the section is checked as follows: When the bent conduit is held in such a position that the straight portions are at an angle of approximately 45 to th
39、e vertical, one end of the sample pointing upwards and the other downwards, it shall be possible to pass the appropriate gauge as shown in figure 102 through the sample under its own weight and without any initial speed. 10.4.102 Non-metallic conduits 10.4.102.1 Conduit sizes 16, 20 and 25 are subje
40、cted to a bending test by means of the apparatus shown in figure 103. The length of the sample is approximately 500 mm. Testing of other sizes is in accordance with the manufacturers instructions. 10.4.102.2 A bending aid, in the form of a coiled spring of square section metal wire, without burrs an
41、d having an overall diameter between 0,7 mm and 1,0 mm less than the specified minimum inside diameter of the conduit, or a bending aid recommended by the manufacturer, is inserted into each sample before bending. 10.4.102.3 Before the test, the sample with the bending aid inserted is conditioned fo
42、r at least 2 h in a refrigerator within which the temperature is maintained at the declared temperature as given in table 1 with a tolerance of +2 C. The bending apparatus is placed beside the refrigerator and the test is carried out within 10 s after the removal of the sample from the refrigerator.
43、 10.4.102.4 Each sample is placed in position as shown in figure 103, and held lightly in the groove of the former by means of the clamp. The sample is bent round the former by moving the bending rollers so that, when released, it has an angle of (90 5), In this position, it shall be possible to rem
44、ove the bending aid without damage to the sample or the aid. After the test, the sample shall show no cracks visible to normal or corrected vision without magnification and it shall be possible to pass the appropriate gauge, as shown in figure 102, through the sample under its own weight and without
45、 any initial speed. 10.4.103 Composite conduits Composite conduits which are declared by the manufacturer as being bendable are tested both in accordance with 10.4.101 and 10.4.102, using new samples for each test. The test is carried out at the declared temperature as given in table 1 with a tolera
46、nce of +2 C. Page 8BS EN 61386-21:2004+A11:2010EN 61386-21:2004+A11:2010 (E)10.5 Flexing test This subclause of part 1 is not applicable. 10.6 Collapse test Replacement: 10.6.101 Metallic conduits Metallic conduits are not subjected to a collapse test. 10.6.102 Non-metallic and composite conduits 10
47、.6.102.1 Conduits which are declared by the manufacturer as being bendable shall be tested in accordance with 10.4.102 with the exception of 10.4.102.3. 10.6.102.2 The samples are fixed to a rigid support by means of four straps, as shown in figure 104, after having removed the bending spring or any
48、 other bending aids recommended by the manufacturer. The support with the sample in position is kept for 24 h 15 min in a heating cabinet at the declared temperature as given in table 2 with a tolerance of +2 C. After this period, with the support in such a position that the straight portions of the
49、 sample are at an angle of approximately 45 to the vertical, one end of the sample pointing upwards and the other downwards, it shall be possible to pass the appropriate gauge, as shown in figure 102, through the sample under its own weight and without any initial speed. 10.7 Tensile strength This subclause of part 1 is applicable, except as follows: 10.7.3 Not applicable. 11 Electrical properties This clause of part 1 is applicable. 12 Thermal properties This clause of part 1 is applicable, except as f
