JIS-C-2812-1998-R2003-ENG.pdf

c JAPANESE I N D U STR I AL STAN DAR D Translated and Published by Japanese Standards Association Mounting rails for devices . 4 1 ICs 29.120.260 Descriptors : rails, fitting, electrical equipment, switchgear Reference number : JIS C 2812 : 1998 (E) 12 s Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:18:56 MDTNo reproduction or networking permitted without license from IHS -,-,- C 2812 : 1998 Foreword This translation has been made based on the original Japanese Industrial Standard revised by the Minister of International Trade and Industry through deliberations at Japanese Industrial Standards Committee in accordance with the Industrial Standardization Law. Consequently JIS C 2812 : 1988 is replaced with JIS C 2812 : 1998. In this revision, conformance of provisions between JIS C 2812 and IEC 60715 was taken into consideration. Date of Establishment: 1988-12-01 Date of Revision: 1998-03-20 Date of Public Notice in Official Gazette: 1998-03-20 Investigated by: Japanese Industrial Standards Committee Divisional Council on Electricity JIS C 2812 : 1998, First English edition published in 1999-03 Translated and published by: Japanese Standards Association 4-1-24, Akasaka, Minato-ku, Tokyo, 107-8440 JAPAN In the event of any doubts arising as to the contents, the original JIS is to be the final authority. rt- Q JSA 1999 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. Printed in Japan Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:18:56 MDTNo reproduction or networking permitted without license from IHS -,-,- JAPANESE INDUSTRIAL STANDARD JIS C 2812 : 1998 Mounting rails for devices Introduction This Japanese Industrial Standard has been prepared based on IEC 60715 Dimensions of low-voltage switchgear and controlgear-Standardized mounting on rails for mechanical support of electrical devices in switchgear and controlgear installations published in 1981 as the first edition and Amendment 1 (1995), without any modification in technical contents. The portions underlined with dotted lines show the matters not given in the cor- responding International Standard. 1 Scope This Japanese Industrial Standard specifies mounting rails for such elec- trical devices as relays, contactors, switches and industrial terminal blocks to be used at voltages not exceeding 1 O00 V a.c. or 1 500 V d.c. (hereafter referred to as “rails”). The rails dealt with here are mainly used for mechanical support of electrical de- vices inside switchgear, controlgear, etc., and are not applicable to the use intended for current carrying. Remarks : The standard given below is the International Standard correspond- ing to this Standard. IEC 60715 : 1981 Dimensions of low-voltage switchgear and Amendment 1 : 1995 controlgear-Standardized mounting on rails for mechanical support of electrical devices in switchgear and controlgear installations 2 Normative references The following standards contain provisions which, through reference in this Standard, constitute provisions of this Standard. The most recent editions of the standards indicated below shall be applied. JIS B 7502 Micrometer callipers JIS B 7503 Dial gauges JIS B 7507 JIS B 7524 Feeler gauges JIS G 3141 Cold-reduced carbon steel sheets and strip JIS H 0401 Methods of test for hot dip galvaniz . . Vernier, dial and digital callipers . . JIS . H. 4 !?O. A!umini um. .anda!urninium. .aW. .extruded. .shaPes JIS Z 2371 Methods of neutral salt spray testing 3 Classification and symbolization The rails are classified according to the shapes of section, and the classes and symbols shall be as given in Table 1. Further, di- mensional classification by width and height of Table 2 and classification by mate- rial of Table 3 are provided. The type designation shall be formed by arranging the appropriate symbols in Tables 1 to 3. Example : TH 35-7.5 Fe Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:18:56 MDTNo reproduction or networking permitted without license from IHS -,-,- STDOJIS C 2812-ENGL 1798 4733b08 0553b50 7b7 W C section 2 C 2812 : 1998 75-25 20 Table 1 Class and symbol Classification Top hat section rail C section rail G section rail Symbol I Shape of section Table 2 Classification by width and height a Classification by Classification symbol by shape of section I width and height Top hat section 15-5.5 I 35-15 I 30 I 40 a G section 32 I Remarks : For C section and G section rail classification by width is employed. Table 3 Classification by material I Classification bymaterial I Symbol I I Fe I Steel I I A! .I Aluminium I Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:18:56 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS C 28L2-ENGt 1998 D q933b08 0553b51 8T3 D 3 C 2812 : 1998 b) Chromate treatment For the resistance to corrosion of metals electrically gal- vanized and then chromated, no white corrosion product shall be produced on the surface when the test is carried out in accordance with 8.3 b ) . . . c) Rust preventive treatment other than galvanization For the resistance to corrosion of metals treated deterrent to rusting other than galvanized one, no blister, peeling nor rust shall appear on the surface when the test is carried out in accordance with 8.3 c). . . . 4.2 Resistance to loading When the test for resistance to loading is carried out as specified in 8.4, the amount of deformation due to deflection shall not exceed 3 mm and no deformation detrimental to service shall appear. . rails of TH75-25 .,. C40 . L . . C50 and G sections Thissub:clause. .is . not. aEPlicable. to. .resista.!ce. .toloadin.of.alumi.!um.railsand . * 6 Appearance The appearance shall comply with the following requirements: a) The rails shall be free from scratch, rust, burr, crack and other defects detri- mental to service. b) The symmetry (=), straightness (-), flatness (D) and parallelism (/I of top hat section, C section and G section shall be as shown in Fig. 1, Fig. 2 and Fig. 3 respectively . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:18:56 MDTNo reproduction or networking permitted without license from IHS -,-,- 4 C 2812 : 1998 u TH 15-5.5 TH 35-7.5 I I I I TH35-15 TH 75-25 a- Fig. l Symmetry, straightness, flatness and parallelism of top hat section Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:18:56 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS C 2812-ENGL 1998 D 4933b08 0553b53 b7b W D 2/rooo - - D 2/1000 / 2.5/1000 5 C 2812 : 1998 - C20.C30 C4OeC50 Fig. 2 Symmetry, straightness, flatness and parallelism of C section 7 7 G 32 Fig. 3 Straightness, flatness and parallelism of G section 6 Dimensions 6.1 in Table 4. Top hat section rail The dimensions of top hat section rails shall be as given Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:18:56 MDTNo reproduction or networking permitted without license from IHS -,-,- 6 C 2812 : 1998 +-+value of slant 0.3rnax Table 4 Dimensions of top hat section rail I A 7 rwithout burr I P w ,I I, Reference I. /7 A i l plane I Magified drawing of A Plate thickness Reference plane H 4 ermissible value Unit: mm Reference plane H 4 1.0 k 0.04 - - -Without burr TH 35- 15Fe Reference plane of slant - 15“max Permissible value of slant 3'rnax -Without burr TH 15-5.5Al TH35-7.5AI Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:18:56 MDTNo reproduction or networking permitted without license from IHS -,-,- Tme designation W Z H W, I TH15-5.5Fe _. % Mounting hole -.-_._ Plate r thickness _._- I TH15-5-5A1 35I0.3 TH35-7.5Fe TH35-7.5A1 ._._._ TH35-15Fe 27k0.2 O lI0.05 0.8 _._-.- 7.5 - 0.4 '- I TH75-25Fe _. Table 4 (concluded) 7 C 2812 : 1998 Unit: mm I I I I I : ; 15+0.5 O h 6k0.1 Plate thickness Remarks 1 2 Each dimension of the section is not applicable to the parts within 10 mm from both ends of products. As regards dimensional tolerances in the table, they mean the recommended values and may be determined subject to agreement between the parties con- cerned with acceptance. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:18:56 MDTNo reproduction or networking permitted without license from IHS -,-,- 10 C 2812 : 1998 7 Materials The materials for rails shall comply with the following requirements: a) The material for steel rail shall be the cold rolled carbon steel specified as SPCC- SD in JIS G 3141, or those at least equivalent in tensile strength and elonga- tion. . b) The material for aluminum rail shall be the aluminum extruded shape specified . as A6063S-T5 in JIS H 4100, or those at least equivalent in tensile strength and elongation. . 8 Test methods In the ap-pearance test, examine the matters specified in 8 . 1 Appearance test 5 a) and 10 visually, and examine those in 5 b) by means of a surface plate, the feeler gauge specified in JIS B 7524 and the dial gauge specified in JIS B 7503. . . In the dimension test, examine the matters specified in 6 by 8 . 2 Dimension test means of the vernier calliper with a minimum reading of 0.05 mm specified in JIS B 7507, the micrometer specified in JIS B 7502, or gauges having least equiva- lent accuracy. . 8 . 3 sion as follows: . Sample specimens of about 100 mm long from the galvanized a) Galvanization metal (excluding *. electrically . galvanized and then chromated ones), repeat the operation specified in 4 of J . H 0401 twice J and then examine whether or not the reaction on the surface r ches the end point. Test for resistance to corrosion Carry out the test for resistance to corro- . . b) Chromate treatment . Sample specimens of about 150 mm long from the metal electrically galvanized and then chromated, repeat such an operation twice that . salt mist is sprayed continuously for 8 h in.accordance with the method specified . in JIS Z 2371 and rested for 16 h, sprayed further for 8 h ? and then examine whether white corrosion product is produced or no . arious parts of the surface. . Rust preventive treatment other than galvanization c) Sample specimens of about 150 mm long from the metal treated deterrent to rusting other than gal- vanized one, repeat such an operation twice that salt mist is sprayed continu- ously for 8 h in accordance with the method specified in JIS Z 2371 and rested for . 16 h ? sprayed further for 8 h ? and then examine whether blister ? . . peeling, rust, . . etc. are produced or not on various parts of the surface. 8.4 as follows: a) Cut the rail so that the distance between the fixing points becomes the appropri- ate dimension shown in Table 7 to prepare a specimen. Fix the top hat section specimen as illustrated in Fig. 4, and the C section specimen as illustrated in Fig. 5. Test for resistance to loading Carry out the test for resistance to loading b) Attach a jig to almost center of rail fixing points so that the loading is possible at a point 50 mm from the rail face for top hat section rail, or a point 100 mm from the rail face for C section rail, and consider this point as the reference point. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:18:56 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-JIS C 2812-ENGL 1998 4733b08 0553157 O9q Type designation Distance between fixing points of rail mm 11 C 2812 : 1998 Load N c) Obtain the amount of vertical deformation from the reference point due to de- flection when the appropriate load of Table 7 is applied. THl5-5.5Fe 250 d) Examine whether deformation detrimental to service exists or not after removal of the load. 7.5 C20Fe C30Fe 200 7 300 24 TH35-7.5Fe I 400 I l5 I Distance between fixing points 4 TH35-15Fe I 700 I 115 I t of ation Load I Distance between fixing points I - , I - Fig. 4 Test for resistance to loading of top hat section rail t- 100 rnrn Load Amount of deformation Fig. 5 Test for resistance to loading of C section rail Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:18:56 MDTNo reproduction or networking permitted without license from IHS -,-,- 12 C 2812 : 1998 9 Inspection 9.1 Type inspection When the inspection is carried out for the items below in accordance with the methods specified in 8, the specimens shall comply with the provisions of 4, 5, 6, 7 and 11. a!. .&J?earance b) Dimensions c) Resistance to corrosion d) Resistance to loading . . . . 9.2 Acceptance inspection When the inspection is carried out for the items below in accordance with the method specified in 8, the specimens shall comply with the provisions of 5, 6 and 11. . . . . a) Appearance b?. .D!.mlensi9?.?s 10 Designation of product The product shall be designated by the name, type designation and length. Example 1 : Mounting rail for devices TH35-7.5Fe . 1 O00 Example 2 : Mounting rail for devices C30A1 _._ 1 O00 11 position . of each product: Marking The following items shall be indelibly marked on an easily visible Type designation (determined by the manufacturer) a) b) Manufacturers name or abbreviation . Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/15/2007 22:18:56 MDTNo reproduction or networking perm