1、STDDBSI BS EN 50212-ENGL L997 Lb24bb7 Ob33b25 75 BRITISH STANDARD Connectors for thermoelectric sensors * * cn The European Standard EN 50212 : 1996 has the status of a British Standard ICs 17.200.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW m BS EN 50212 : 1997 STD*BSI
2、BS EN 50212-ENGL 1777 Lb24bb7 Ob33bZb b73 W BS EN 50212 : 1997 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee GEL/, Measurement and control, upon which the following bodies were represented British Gas plc British Nuclea
3、r Fuels plc Electricai Contractors Association Electricity Association Energy Industries Council GAMEXCA (EEAMA Ltd.) Health and Safety Executive Institution of Gas Engineers Institute of Measurement and Control The following bodies were also represented in the dratting of the standard, through subc
4、ommittees and panels: British Cable Makers Confederation British Pressure Gauge Manufacturers Association Department of Bade and Industry (National Physical Laboratory) Engineering Industries Association Institute of Materials Society of Environmental Engineers Institution of Electrical Engineers Th
5、is British Standard, having been prepared under the direction of the Electrot,echnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 May 1997 O BSI 1997 The following BSI references relate to the work on this standard Committee reference GEL65 Dra
6、ft for comment 95209650 DC ISBN O 680 27116 3 Amendments issued since publication I Amd. No. I Text affected - - STD*BSI BS EN 50212-ENGL I797 Lb2Libb7 Ob33b27 52T BS EN 60212 : 1997 Contents Commitkes responsible Page Inside front cover Nationai foreword ii Foreword 2 Text of EN 50212 3 O BSI 1997
7、1 BS EN 50212 : 1997 National foreword This British Standard has been prepared by Technical Committee GEL6 and is the English hguage veision of EN 50212 Connectors for ULemLoelectrie sensors, published by the European Committee for Electrotmhnical St+uidardization (CENELEC). Cross-references Publica
8、tion referred to IEC 584 series HD 446.3 S1: 1993 Corresponding British Standard BS 4937 International ULemtOcoupe wfme tubh BS 4937 : Part 30 : 1993 Exhwion and compensating cables. Tolerances and identification sgstem Compliance with a British Standard does not of itself confer immunity from legal
9、 obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and U, pages 1 to 8, an inside back cover and a back cover. O BSI 1997 EUROPEAN STANDARD NORIME EUROPENNE EXJROP- NORM EN 50212 May 1996 ICs 17.200.20 Descriptors: Thermoelecbic sensor, compensated c
10、onnectors English version Connectors for themoelectric senson connecteurs pour couples thmolecttiiques Steckverbindurigen fur Thmoelement This European Standard was approved by CENELEC on 1996-0305. CENELEC members are bound to comply with the CENKENELEC Internal Regulations which stipuhk the condit
11、ions for giving this European Standard the status of a national standard without any alteration. Upbdate lists and bibliographical references concerning such national standards may be obtained on application in the Centrai Secretariat or to any CENELEC member. This European Standard exists in three
12、official versions (English, French, German). A version in any other language made by !mnslation under the responsibiity of a CENELEC member into its own ianguage and notified to the Central Secretaria has the me status as the official versions. CENELEC members are the national electrotechnical commi
13、ttees of Ausria, Belgium, Denmark, Finland, France, Germanyj Greece, Iceland, Ireland, Ialy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENEIIEC European Committee for Electrotechnical Standarmon Comit Europen de Normalisation Electrotechnique Europaisc
14、hes Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 36, B-1060 Brussels O 1996 Copyright reserved to CENELEC members Ref. No. EN 50212 : 1996 E STD.BS1 BS EN 50212-ENGL L777 LbZLibb Ob33b30 OLV Page 2 ENml2:1996 Foreword This European Standard was prepared by BTWG 69-2, Com
15、pensated nnectors for thermoelechic sensors. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50212 on 1996-0345. The folowing dates were fixed: - latest date by which the EN has to be implemented at national level by publication of an identica
16、l national standard or by - laiest date by which the national endorsement (dop) 1997-0301 standards conflicting with the EN have to be withdrawn (dow) 1997-0341 Contents Foreword 1 Object and scope 2 General 2.1 Connector types 2.2 Marking for identinication and polarities 3 Electrical characteristi
17、cs 3.1 Maximum dowable error when a temperature gradient is present 3.2 Contact quality stability test 3.3 Insulation resistance 3.4 Earth connection continuity 4 Dimensional characteristics 6 Physical chasacteMa 6.1 Housing 6.2 Metal parts (pin, socket contact) connected to the cables to be linked
18、together 6.3 Connections Figures 1 2 3 4 Test set up for insertion error verification A type connector with 2 pins A type connector with 3 pins B type connector with 2 pins page 2 3 3 3 3 3 4 4 O BSI 1997 STD-BSI BS EN 502LZ-ENGL 1997 Lb2Ybb9 Ob33b3L T50 E * 1,5“C 1 Object and scope The object of th
19、is standard is to determine composition, nature of materiais, manufactwing tests and thermoelectric behaviour of connedors for senson using thermocouples according to HD 446.31. The latter standard does not cover such spechi thermocouples as U, L and W types; nevertheless the user of such special th
20、ermocouples may use the connectors described hereafter with some restrictions mentioned in the relevant paragraphs. J KorN RorS T B f 1,5“C * 1,5“C * 0,5“C f 0,5“C not relevant 2 General 2.1 Connector types 2.1.1 Connectors with specified dimensional characteristics They are defined in this standard
21、 by their dimensional, physical, electrical and chemical charactensti cs. The types retained in this standard are: - A type: connectors with cyindricai pins and cylindrical sockets; - B type: connedors with fiat pins and flat sockets. 2.1.2 Other connectors The electrical characteristics are identic
22、al to those defined for connectom described in 3.1.1. Withdrawal tests, waterproof and dustproof tests, corrosion tests, tests for resistance to heat, will be stated by the manufacturer as a list of technicai charactens . tia. The dimensional, physical and chemicai characteristics peculiar to each m
23、anufacturer are not specified. 2.2 Marking for identification and polarities The connectors shall comprise a permanent colour marking, e.g. either indelible superciai or mass colouring, or recessed coloured dots or coloured rings, etc. At least the positive poiarity shall be indicated by permanent m
24、arking. Though not compulsow, to avoid confusion with previous markings, or markings in other standards, the thermocouple type may be also additionally indicated. Code T J E K S R B N Colour brown black violet green orange orange grey Pa Page 3 EN 5u212 : 1996 To measure them, the following method s
25、hall be used: Refer to figure 1. NOTE. 0, - i = 40 K * 2 K (see subclause 4.1) a) Schematic representation ooc I el 5 ioooc a) Results The measurements shall be made using a millivoltmeter having a metrological quality related to the error to be measured. The temperaturdmillivolt correspondence is s
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