1、BRITISH STANDARD Dimensions of low- voltage switchgear and controlgear - Standardized mounting on rails for mechanical support of electrical devices in switchgear and controlgear installations The European Standard EN 60715:2001 has the status of a British Standard ICs 29.130.20 BS EN 60715:2001 IEC
2、 60715:1981: +Al : 1 99 5 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 60715:2001 National foreword This British Standard is the official English language version of EN 60715:2001. It is identical with IEC 60715:1981:+A1:1995. The UK participation in its preparation w
3、as entrusted by Technical Committee PEUl7,Switchgear controlgear and HV-LV Co-ordination, to Subcommittee PEL117/2, Low voltage switchgear and controlgear, which has the responsibility to: - - aid enquirers to understand the text; present to the responsible internationalEuropean committee any enquir
4、ies on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented on this subcommittee can be obtained on request to its secretary. From 1 January 1997,
5、all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Stan
6、dards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standa
7、rd does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. This British Standard, having been prepared under the dir
8、ection of the Electrotechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 August 2001 Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 25 and a back cover. The BSI copyright da
9、te displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. IDate I Comments O BSI 08-2001 ISBN O 580 37895 O EUROPEAN STANDARD NORME EUROPENNE EN 60715 EUROPISCHE NORM May 2001 ICs 29.120.60 English version Dimensions of low-voltage switch
10、gear and controlgear - Standardized mounting on rails for mechanical support of electrical devices in switchgear and controlgear installations (IEC 60715:1981 + Al:1995) Dimensions de lappareillage Montage normalis sur profils-supports pour le support mcanique des appareils lectriques dans les insta
11、llations dappareillage basse tension (CE1 60715:1981 + Al:1995) Abmessungen von Genormte Tragschienen fr die mechanische Befestigung von elektrischen Gerten in Schaltanlagen (IEC 60715:1981 + Al:1995) 0 basse tension - Niederspannungsschaltgerten - This European Standard was approved by CENELEC on 2
12、000-04-01. CENELEC members are bound to comply with the CENICENELEC 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 standards may b
13、e 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 is own language and notified to the
14、 Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerla
15、nd 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 O 2001 CENELEC - All rights of exploitation in any form a
16、nd by any means reserved worldwide for CENELEC members. Ref. No. EN 60715:2001 E EN 60715:2001 Foreword The text of the International Standard IEC 6071 51981 and its amendment 1 :I 995, prepared by SC 17B, Low-voltage switchgear and controlgear, of IEC TC 17, Switchgear and controlgear, was submitte
17、d to the formal vote and was approved by CENELEC as EN 60715 on 2000-04-01 without any modification. 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 - latest date by which the nat
18、ional standards conflicting with the EN have to be withdrawn (dop) 2001-10-01 (dow) 2003-04-01 Endorsement notice The text of the International Standard IEC 60715:1981 and its amendment 1:1995 was approved by CENELEC as a European Standard without any modification. 2 EN 60715:2001 O CONTENTS Page Pr
19、eface . 4 Introduction . 5 Clause 1 Scope . 5 2 Object . 6 3 Functional requirements . 6 4 Standard dimensions 6 Appendix A . Steel mounting rails . 12 Appendix B . Application guide 19 O BSI 08-2001 3 EN 60715:2001 INTERNATIONAL ELECTROTECHNICAL COMMISSION DIMENSIONS OF LOW-VOLTAGE SWITCHGEAR AND C
20、ONTROLGEAR STANDARDIZED MOUNTING ON RAILS FOR MECHANICAL SUPPORT OF ELECTRICAL DEVICES IN SWITCHGEAR AND CONTROLGEAR INSTALLATIONS PREFACE This standard has been prepared by Sub-committee i7B: Low-voltage Switchgear and Controlgear, of I EC Technical Committee No. 17: Switchgear and Controlgear. As
21、a result of the decision taken at the meeting held in The Hague in September 1975, a first draft was circulated in December 1976 and discussed at the meeting held in Moscow in June 1977. A second draft was circulated in March 1978 and discussed at the meeting held in Sofia in October 1978. The third
22、 draft, Document 17B(Central Office)108, was submitted to the National Committees for approval under the Six Months Rule in December 1979. The National Committees of the following countries voted explicitly in favour of publication : Australia Austria Belgium Bulgaria Canada Denmark France Germany H
23、ungary Italy Japan Netherlands Poland Romania South Africa (Republic of) Spain Sweden Switzerland Turkey Union of Soviet United Kingdom Socialist Republics 4 O BSI 08-2001 EN 60715:2001 DIMENSIONS OF LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR STANDARDIZED MOUNTING ON RAILS FOR MECHANICAL SUPPORT OF ELEC
24、TRICAL DEVICES IN SWITCHGEAR AND CONTROLGEAR INSTALLATIONS o INTRODUCTION The problem of mounting devices, that is switches, circuit-breakers, relays, contactors, terminal blocks, etc., within an assembly in such a manner that they may be easily initially fmed, removed or rearranged, has been studie
25、d during the last few years by an increasing number of groups of manufacturers and users. A solution which has already found a degree of “natural standardization” in a number of highly industrialized countries is rail mounting, for example steel or aluminium sections onto which is attached any devic
26、e of any group within a certain physical size. Using the rail method, initial fixing, removal or rearrangement of components within an assembly is readily carried out. Two methods are used for fixing a device on a rail: “G” rails) ; - either directly by clipping on the rail (this method is particula
27、rly suitable for “Top hat” rails or - or by means of a variety of accessories such as sliding nuts and hooked or “T” headed bolts (this method is particularly suitable for “C” rails). In the case of “G” rails, the first of these methods has been mainly used for mounting terminal blocks which snap in
28、 and out of position and are clamped in rows by adjustable end stops. One or more rails can be used as necessary for fixing devices. The rail may take the form of a standard section as an integral part of the enclosure. Rails are also available of composite sections which combine, for example, “Top
29、hat” and “C” Since rail mounting may affect the performance of equipment, it may be advisable for equipment section sizes thus accepting devices with various arrangements for mounting. manufacturers to give guidance in their literature on the suitability for this form of mounting. 1. scope This stan
30、dard specifies dimensional and functional requirements for the compatible mounting of varied electrical devices on some types of rails in switchgear and controlgear assem blies. Appendices deal with specific steel mounting rails satisfying the requirements of this standard, and give additional dimen
31、sional data and loading requirements applicable to such rails. O BSI 08-2001 5 EN 60715:2001 2. Object The object of this standard is to specify those dimensions which are critical for the correct design of rails and equipment. The following sections are covered by this standard: - ?Top hat? section
32、; - ?C? section; - ?G? section. Notes 1. - The detailed design and material of specific steel rails is given in the appendices. 2. - Mounting compatibility does not imply functional interchangeability. 3. - Other types of rails and relevant mountings which are not covered by this standard can be use
33、d. 3. Functional requirements The basic functional requirement of mounting rails is that they shall adequately support the electrical equipment. The rail itself, in combination with the distance between the points of support and the nature of these supports, shall be of sufficient mechanical strengt
34、h and stiffness to endure the static and dynamic load of the equipment. Nore. - The performance of the equipment mounted on rail should be verified to ensure correct operation. Because of the great variety of equipment, and of combinations of equipment, and the spatial distribution of such equipment
35、, it is not possible to state specific requirements that ensure proper performance under all conditions; however the detailed dimensions and the strength requirements given in Appendix A and Appendix B have been shown by experience to be suitable for use with a variety of equipment such as contactor
36、s, fuses, switches, terminal blocks and circuit-breakers. The responsibility for the correct construction and choice of materiais lies with the manufacturer of the complete assembly. 4. Standard dimensions 6 The dimensions given in millimetres are those which are critical for the correct design of t
37、he rail and the equipment to be mounted thereon. O BSI 08-2001 EN 60715:2001 4.1 Top hat section Reference plane I Reference plane p-24-64 I I +3.08 I I Reference plane R = 0.2 rnax. Burr free edges I Reference plane 423/8J Size of the rail TH 35 I 3 *0.08-r-J4- I“ R = 0.3 max. Burr free edges 1“ rn
38、ax. 7E 3.5 6 max. 4.?4/81 FIGURE 1 FIGURE 2 The reference plane is a plane touching the front of the rail. TH 75 O BSI 08-2001 7 EN 60715:2001 Reference plane IEC 874M Figure 1 Reference plane TH 15 R = 0.4 i 0,1 IEC 87995 Figure 2 In Figure 1, page 11, the cross-hatched area shows the maximum space
39、 available for the rail,. its supporting structure and fixing means. The remaining space is the maximum space which can be counted on as available for the equipment to be mounted on the rails. Figure 2, page 11, shows magnified details of the edge of the rails, including the manufacturing tolerances
40、. The rails are symmetrical within the given tolerances. The angular tolerances indicated are one-sided and shall remain between zero and the values indicated. They include design tolerances. O 8 O BSI 08-2001 EN 60716:2001 4.2 “C” section Reference plane Reference plane Reference plane 12.65 11 I0.
41、3 1 IO.1 $7 3 max. 43/W 1.5*0.1 Reference plane I FIGURE 3 FIGURE 4 Size of the rail c 20 C 30 O BSI 08-2001 9 EN 60715:2001 Reference plane pl 9.65 4 - 1.2 x45“ Reference plane ry+ 1.8 x45 FIGURE 5 Reference plane I 5.5*1.2 J? 7/s I Reference plane Size of the rail C 40 C 50 The reference plane is
42、a plane touching the front of the rail. In Figure 3, page 13, and in Figure 5, the cross-hatched area shows the maximum space available for the rail and its supporting structure; it does not take into account the fixing means for the rail. The remaining space is the maximum space which can be counte
43、d on as available for the equipment to be mounted on the rail. O 10 O BSI 08-2001 EN 60716:2001 Figures 4 and 6, pages 13 and 15 respectively, show magnified details of the edge of the rail, including the manufacturing tolerances. The rails are symmetrical within the given tolerances. The angular to
44、lerances indicated are one-sided and shall remain between zero and the values indicated. They include design tolerances. 4.3 “G” section Reference plane 11.55 Reference plane Size of the rail R= Burr 1.5*0.05-11 G 32 FIGURE 7 , FIGURE 8 The reference plane is a plane touching the front of the rail.
45、In Figure 7, the cross-hatched area shows the maximum space available for the rail and its supporting structure; it does not take into account the fixing means for the rail. The remaining space is the maximum space which can be counted on as available for the equipment to be mounted on the rail. Fig
46、ure 8 shows magnified details of the edge of the rail, including the manufacturing tolerances. The angular tolerances indicated are one-sided and shall remain between zero and the values indicated. They include design tolerances. O BSI 08-2001 11 EN 60715:2001 APPENDIX A STEEL MOUNTING RAILS This an
47、nex gives guidance for the selection of steel and finis, and specifies the standard dimensions and manufacturing tolerances of steel mounting rails which meet the require- ments of this standard. A suitable material is a coid-rolled carbon steel sheet having the following characteristics: - skin pas
48、sed after annealing; - bright surface finish; - tensile strength between 320 N/mm2 and 420 N/rnm2; - elongation at least 30 %; - 180“ bend test horizontally and transversally with regard to the direction of rolling. A suitable finish is zinc-plating and chromating, with a layer having a thickness of
49、 at least 6 pm, except for the cut surfaces resulting from cutting to length. Other qualities of steel and other finishes may be used by agreement between manu- facturer and user. 12 O BSI 08-2001 EN 60716:2001 Al. Top hat section rail TH 35-7.5 and TH 35-15 A 1.1 Dimensions Dimensions stated for such rails are indicated in Figure Al. These dimensions apply over the whole length of the top hat rail but shall not be verified at less than 10 mm from the ends. Dimensions in millimetres Top hat rail TH 35-7.5 Top hat rail TH 35-15 Burr free edge 7.524 l-7 - 1 53.* 1
