1、 BRITISH STANDARD BS EN 50086-1:1994 Incorporating Amendment No. 1 and Corrigenda Nos. 1 and 2 Specification for Conduit systems for cable management Part 1: General requirements The European Standard EN 50086-1:1993 has the status of a British Standard ICS 29.120.10 Licensed Copy: Wang Bin, na, Thu
2、 May 26 07:50:42 BST 2005, Uncontrolled Copy, (c) BSIBS EN 50086-1:1994 This British Standard, having been prepared under the direction of the Power Electrical Engineering Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 April 1994 BSI
3、31 March 2005 The following BSI references relate to the work on this standard: Committee reference PEL/80 Draft for comment 91/27458 DC ISBN 0 580 23070 8 Cooperating organizations The European Committee for Electrotechnical Standardization (CENELEC), under whose supervision this European Standard
4、was prepared, comprises the national committees of the following countries: Austria Italy Belgium Luxembourg Denmark Netherlands Finland Norway France Portugal Germany Spain Greece Sweden Iceland Switzerland Ireland United Kingdom Amendments issued since publication Amd. No. Date Comments 12052 Nove
5、mber 2000 In National foreword, supersession details updated 13548 Corrigendum No. 1 26 February 2002 Correction to title of standard 15466 Corrigendum No. 2 31 March 2004 In National foreword, supersession details updated. Licensed Copy: Wang Bin, na, Thu May 26 07:50:42 BST 2005, Uncontrolled Copy
6、, (c) BSIBS EN 50086-1:1994 BSI 31 March 2005 i National foreword This British Standard has been prepared under the direction of the Power Electrical Engineering Standards Policy Committee and is the English language version of EN 50086-1:1993, Conduit systems for cable management Part 1: General re
7、quirements, including corrigendum February 2001, published by the European Committee for Electrotechnical Standardization (CENELEC). It supersedes BS 731-1:1952, which is withdrawn. Further to publication of BS EN 61386-1:2004, a harmonized standard, it supersedes BS 50086-1:1994 which will be withd
8、rawn on 30 June 2008. The foreword of EN 50086-1 makes reference to the “date of withdrawal” (dow) of the relevant national standard. In this case the relevant national standards are BS 6099-1:1981 which was withdrawn on 31 January 1996, and BS 4568-2:1970 which was withdrawn on 31 May 2000. This pu
9、blication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front c
10、over, pages i and ii, the EN title page, pages 2 to 27 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: Wang Bin, na, Thu May 26 07:50:42 BST 2005, Uncontrolled Copy, (c) BSIii blank Licensed Copy: Wang Bin, na, Thu May
11、 26 07:50:42 BST 2005, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 50086-1 December 1993 UDC 615.315.2 Incorporating corrigendum February 2001 Descriptors: Electric wiring system, insulating conduit, dimension, mechanical characteristics, electrical characteristics
12、, test English version Conduit systems for cable management Part 1: General requirements Systmes de conduits pour la gestion du cblage Partie 1: Rgles gnrales Installationsrohrsysteme zum Fhren von Leitungen fr elektrische Energie und fr Information Teil 1: Allgemeine Anforderungen This European Sta
13、ndard was approved by CENELEC on 1993-07-06. CENELEC 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 concer
14、ning such national standards may be obtained on application to the Central Secretariat or to any CENELEC 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 CENELEC member into i
15、ts own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain
16、, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1993 Copyright reserved to CENELEC membe
17、rs Ref. No. EN 50086-1:1993 E Licensed Copy: Wang Bin, na, Thu May 26 07:50:42 BST 2005, Uncontrolled Copy, (c) BSIEN 50086-1:1993 BSI 31 March 2005 2 Foreword This European Standard has been prepared by CENELEC Technical Committee TC 113, Cable Management Systems. This Part 1, which specifies gener
18、al requirements for all conduit systems, is to be used in conjunction with the appropriate Part 2, which contains clauses to supplement or modify the corresponding clauses in Part 1, to provide the relevant particular requirements for each type of product. A conduit system which conforms to this sta
19、ndard is deemed safe for use. The text of this standard was approved by CENELEC as EN 50086-1 on 1993-07-06. The following dates were fixed. For products which have complied with the relevant national standard before 1996-01-31, as shown by the manufacturer or by a certification body; this previous
20、standard may continue to apply for production until 2001-01-31. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 4 General requirements 5 5 General conditions for tests 5 6 Classification 6 7 Marking and documentation 8 8 Dimensions 8 9 Construction 8 10 Mechanical propert
21、ies 9 11 Electrical properties 12 12 Thermal properties 13 13 Fire effects 15 14 External influences 15 15 Electro-magnetic compatibility 17 Annex A (normative) 25 Figure 1 Arrangement for compression test 17 Figure 2 Impact-test apparatus 18 Figure 3 Assembly of conduit and conduit fittings for bon
22、ding test 19 Figure 4 Arrangement for insulation resistance and electric strength test Rigid conduit 20 Figure 5 Arrangement for insulation resistance and electric strength test Pliable and flexible conduit 21 Figure 6 Enclosure for test for resistance to flame propagation 22 Figure 7 Arrangement fo
23、r test for resistance to flame propagation 23 Figure 8 Test apparatus for resistance to heat 24 Table 1 7 Table 2 7 Table 3 Torque values for screw tests 9 Table 4 Compression force 10 Table 5 Impact test values 11 Table 6 Tensile force 11 Table 7 Suspended load 12 Table 8 Times of exposure of the s
24、ample to the flame 14 Table 9 Load for heating test 15 Table 10 Resistance to corrosion classification 16 latest date of publication of an identical national standard (dop) 1994-07-01 latest date of withdrawal of conflicting national standards (dow) 1994-07-01 Licensed Copy: Wang Bin, na, Thu May 26
25、 07:50:42 BST 2005, Uncontrolled Copy, (c) BSIEN 50086-1:1993 BSI 31 March 2005 3 1 Scope This standard specifies requirements and tests for conduit systems, including conduits and conduit fittings, for the protection and management of insulated conductors and/or cables in electrical installations o
26、r in communication systems up to 1 000 V a.c. and/or 1 500 V d.c. This standard applies to metallic, non-metallic and composite conduit systems including threaded and non-threaded entries which terminate the system. This standard does not apply to enclosures and connecting boxes which come within th
27、e scope of IEC 670. This Part 1 shall be used in conjunction with the relevant Part 2 for particular requirements. NOTE 1 Certain conduit systems may also be suitable for use in hazardous atmospheres. Regard should then be taken of the extra requirements necessary for equipment to be installed in su
28、ch conditions. NOTE 2 Earthing conductors may or may not be insulated. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are lis
29、ted 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 referred to applies. EN 60423 (in preparation),
30、Outside diameters of conduits for electrical installations and threads for conduits and fittings. (IEC 423 future ed. 2) EN 60529:1991, Degrees of protection provided by enclosures (IP Code). (IEC 529:1989) EN 60695-2-4/1:1993, Fire hazard testing Part 2: Test methods Section 4/sheet 1 : 1 kW nomina
31、l pre-mixed test flame and guidance. (IEC 695-2-4/1:1991) HD 243 S10:1993, Graphical symbols for use on equipment Index, survey and compilation of the single sheets. (IEC 417:1973 + supplements A:1974 to K:1991) IEC 670:1989, General requirements for enclosures for accessories for household and simi
32、lar fixed electrical installations. IEC 695-2-1:1991, Fire hazard testing Part 2: Test methods Section 1: Glow-wire test and guidance. 3 Definitions For the purposes of this standard, the following definitions apply. 3.1 conduit system a closed wiring system consisting of conduits and conduit fittin
33、gs for the protection and management of insulated conductors and/or cables in electrical or communication installations, allowing them to be drawn in and/or replaced, but not inserted laterally 3.2 conduit a part of a closed wiring system of general circular cross-section for insulated conductors an
34、d/or cables in electrical or communication installations, allowing them to be drawn in and/or replaced 3.3 conduit fitting a device designed to join or terminate one or more components of a conduit system, or change direction 3.4 metallic conduit and/or conduit fitting conduit or conduit fitting whi
35、ch consists of metal only Licensed Copy: Wang Bin, na, Thu May 26 07:50:42 BST 2005, Uncontrolled Copy, (c) BSIEN 50086-1:1993 4 BSI 31 March 2005 3.5 non-metallic conduit and/or conduit fitting conduit or conduit fitting which consists uniquely of non-metallic material and has no metallic component
36、s whatsoever 3.6 composite conduit and/or conduit fitting conduit or conduit fitting comprising both metallic and non-metallic materials 3.7 non-flame propagating conduit and/or conduit fitting conduit or conduit fitting which is liable to catch fire as a result of an applied flame, in which the fla
37、me does not propagate and which extinguishes itself within a limited time after the flame is removed 3.8 plain conduit a conduit in which the profile is even in the longitudinal section (see note to 3.9) 3.9 corrugated conduit a conduit in which the profile is corrugated in the longitudinal section
38、NOTE Both annular and helical corrugated conduits are permissible and a combination of both corrugated and plain conduit is possible. 3.10 rigid conduit a conduit which cannot be bent, or only be bent with the help of a mechanical aid and with or without special treatment 3.11 pliable conduit a cond
39、uit which can be bent by hand, with a reasonable force and is not intended for frequent flexing 3.12 flexible conduit a conduit which can be bent by hand, with a reasonable small force, and which is intended to flex frequently throughout its life 3.13 self-recovering conduit a pliable conduit which
40、deforms when a transverse force is applied for a short time and which after removal of this force returns close to its original shape within a further short time 3.14 material thickness of a plain conduit the average difference between the outside and inside diameter divided by two 3.15 material thi
41、ckness of a corrugated conduit the average thickness of material measured at any point along the shape of one corrugation 3.16 material thickness of a combined plain and corrugated conduit the sum of the plain conduit material thickness and the corrugated material thickness 3.17 threadable conduit a
42、nd conduit fitting conduit and conduit fitting which carry a thread for connection; or in or on which a thread, can be formed 3.18 non-threadable conduit and conduit fitting conduit and conduit fitting which are suitable for connection only by means other than threads Licensed Copy: Wang Bin, na, Th
43、u May 26 07:50:42 BST 2005, Uncontrolled Copy, (c) BSIEN 50086-1:1993 BSI 31 March 2005 5 3.19 conduit joint an interface between two or more components of a conduit system, or between a conduit system and other equipment 3.20 external influence factors which may affect the conduit system NOTE Examp
44、les of such factors are, a presence of water, oil or building materials, low and high temperatures and corrosive or polluting substances. 3.21 hot dip galvanising a coating of zinc, and zinc-iron alloy layers, obtained by dipping prepared iron or steel articles in molten zinc NOTE Under some circums
45、tances the whole coating may consist of zinc-alloy layers. 3.22 sheradizing a diffusion process in which articles are heated in close contact with zinc dust and inert operating media NOTE The process is normally carried out in a slowly rotating closed container at a temperature in the region of 385
46、C. The corrosion resistance is proportional to the coating thickness which can be controlled. 4 General requirements 4.1 Conduit and conduit fittings within the scope of this standard shall be so designed and constructed that in normal use their performance is reliable and without danger to the user
47、 or surroundings. When assembled in accordance with manufacturers instructions as part of a conduit system, they shall provide mechanical and, where required, electrical protection of the insulated conductors and cables contained therein. 4.2 The protective properties of the joint between the condui
48、t and conduit fitting shall be not less than that declared for the conduit system. 4.3 Conduit and conduit fittings shall withstand the stresses likely to occur during transport, storage, recommended installation practice and application. 5 General conditions for tests 5.1 Tests in accordance with t
49、his standard are type tests. 5.2 Unless otherwise specified, the tests shall be carried out at an ambient temperature of (23 +/ 2) C. 5.3 Unless otherwise specified each test shall be made on three new samples. NOTE Certain tests, for instance the checking of dimensions, do not affect a change in the property of the samples and therefore these samples are considered as new samples and can be used for further tests. 5.4 Samples of
