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1、 J I S C*l1bO5 95 4933608 0529734 55b = JI$ t JAPANESE INDUSTRIAL STANDARD Mineral insulated thermocouples JIS C 1 6 0 5 - 1 9 9 5 Translated and Published by Japanese Standards Association UDC 621.362:536.5 Printed in Japan 18 S Copyright Japanese Standards Association Provided by IHS under license
2、 with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 22:15:39 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S C*:1605 95 4933608 0529735 492 = In the event of any doubt arising, the original Standard in Japanese is to be final autho
3、rity. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 22:15:39 MDTNo reproduction or networking permitted without license from IHS -,-,- JIS C*LbO5 95 M 4933608 0529716 329 UDC 621.362:536.
4、5 JAPANESE INDUSTRIAL STANDARD J I S Mineral insulated thermocouples C 1605-1995 1. Scope This Japanese Industrial Standard specifies mineral insulated ther- mocouples to be used for thermometry. Remarks 1. The following Standards are cited in this Standard: JIS B 7502 JIS C 1302 JIS C 1602 JIS C 16
5、10 JIS Z 8703 JIS Z 8704 JIS Z 8710 Micrometer callipers Insulation resistance testers Thermocouples Compensating lead wires Standard atmospheric conditions for testing Temperature measurement - Electrical methods Temperature measurement - General requirement 2. The International Standard correspond
6、ing to this Standard is given below. IEC 1515 (1995) Mineral insulated thermocouple cables and thermocouples Definitions For the purpose of this Standard, the following definitions apply: mineral insulated thermocouple construction that powdery inorganic insulation is filled up between metallic shea
7、th and thermocouple element wires and sealed. thermocouple An assembly in which two kind conductors are electrically connected for the purpose of generating thermoelectromotive force. thermocouple element wires legs of thermocouple. inorganic insulation Powdery substance of superior quality to insul
8、ate electrically metallic sheath and thermocouple element wires (for example, magnesium oxide of purification 96 % or more). metallic sheath wires from directly contacting with the article under thermometry or atmo- sphere by enclosing the thermocouple element wires together with inorganic insulator
9、. A thermocouple with such integrated Metal wires or alloy wires to form both A metallic tube to prevent the thermocouple element measuring junction placed at a temperature measuring position. grounded measuring junction with metallic sheath. A junction point of thermocouple element wires to be A me
10、asuring junction connected electrically non-grounded measuring junction lated from metallic sheath. reference junction or compensating cable and conductor to be kept at a constant temperature (for example, ice point). A measuring junction electrically insu- A junction of thermocouple and conductor o
11、f extension Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 22:15:39 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 C 1605-1995 - Alloy mainly consists of nicke
12、l and SK I chromium (10) referenc therm which is general SE ctromotive force )y an ideal thermocouple (reference thermocouple) corre- A certain thermoelectromotive force Alloy mainly consists of nickel and chromium and nickel Alloy mainly consists of copper sponding to the temperature of measuring j
13、unction when the reference junction is at 0C. This means an insulated pair of conduc- tors having almost equal thermoelectric characteristics to that of the thermo- couple to be used in combination, within an appropriate temperature range including ordinary temperaure, and used to compensate the tem
14、perature difference between the junciton of thermocouple and the reference junction by connecting it between the thermocouple and the reference junction. (11) extension or compensating cable 3. Classification 3.1 Classification of mineral insulated thermocouples Mineral insulated thermocouples are c
15、lassified as given in Table 1, in acordance with the component of thermocouple element wires. Table 1. Classification of mineral insulated thermocouple Symbol of kind chromium and silicon Duple element wires - Leg l) Alloy mainly consists of nickel and silicon Alloy mainly consists of nickel Alloy m
16、ainly consists of copper and nickel Alloy mainly consists of copper and nickel Note (l) The + leg means a leg to be connected to + terminal of measuring instrument for measurement of the thermoelectromotive force, and - leg means the opposite side. 3.2 Metallic sheath accordance with the quality of
17、materials. Metallic sheaths are classified as given in Table 2, in Table 2. Material of metallic sheath Symbol I Quality of material A I Austenitic stainless steel B I Corrosion and heat resistant super alloy (2) Note (2) Based on JIS Z 8704. 3.3 in accordance with the shape illustrated in Fig 1. Me
18、asuring junction Measuring junctions are classified as given in Table 3, Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 22:15:39 MDTNo reproduction or networking permitted without license
19、from IHS -,-,- 3 C 1605-1995 Fig. 1. Shape of measuring junction (1) Grounded type (2) Non-grounded type Inorganic in sul a tion Metallic sheath Thermocouple/ element wire Table 3. Symbol of measuring junction Symbol I Shape G I Grounded type U I Non-grounded type 4. Tolerances shown in Table 4. The
20、 tolerances are classified in each kind of thermocouple as Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 22:15:39 MDTNo reproduction or networking permitted without license from IHS -,-,-
21、 J I S (61605 95 m 4933b08 0527739 036 m Class 1 -40C S T 7 aio = - 1.632 269 748 6 X n i=1 E=h-tZ bit-ic, expcl (t-126.9886)2 (pV) Where, bo = - 1.760 041 368 6 x 101 bi= 3.892 1204975X101 b2= 1.855 877 3 2 x 10-2 b3= -9.945 759 287 4X lo-, b,= 3.184 094 571 9 x lo- b5= -5.607 284 488 9X be= 5.607
22、505 905 9 x 10-13 b7= -3.202 072 O00 3X be= 9.715 114 715 2 x ba= - 1.210 472 127 5 x 10-23 co = 1.185 976 X lo2 cl = - 1.183 432 X lo- Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 22:15
23、:39 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S CtLb05 95 4933b08 0529744 293 = 29 C 1605-1995 Symbol E Temperature range O C -270 to O o to 1000 Interpolation equation E=E n ait (pV) i=l Where, ai = 5.866 550 870 8 x 10, a2= 4.541 097 712 4X a3= -7.799 804 868 6
24、x -2.580 016 W 3 X lo- a5=-5.9452583057X10-7 as= -9.321 4 5 866 7 X 10-9 a,= - 1 .O28 760 553 4 x an= -8.037 O12 362 1 X lo- a9= -4.397 949 739 1 X 10-l a i , = - 1.641 477 635 5 X 10-I -3.967 361 951 6X lo- aI2=-5.582732872 1X10-23 ai3= -3.%5 784 201 3X R E = 2 i=l ait (pV) Where, a, = 5.866 550 87
25、1 Ox 10, az= os= 2.890847212X10-5 4.503 227 558 2 X a,= - 3.305 689 665 2X us= us= - 1.919 749 550 4 X a7= - 1.253 660 049 7X us= 6.502 440 327 OX IO-1o 2.14 921 756 9 X 10-l8 U, = - 1.438 84 178 2 X lo- a, = 3.596 089 948 1 X Copyright Japanese Standards Association Provided by IHS under license wi
26、th JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 22:15:39 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S CXLbO5 7s 4933608 0529745 L2T = Symbol J 30 C 1605-1995 Temperature range O C Interpolation equation -210 to 760 n i= 1 E=E a
27、ft (pv) Where, ao= 2.964 562 568 1 x 105 ai= - 1.497 612 778 6 x lo3 I 2= 3.1787103924 . as= -3.184 768 670 i x 10-3 a,= 1.572081900410- U, = - 3.069 136 905 6 x 10-10 Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie
28、Not for Resale, 03/13/2007 22:15:39 MDTNo reproduction or networking permitted without license from IHS -,-,- 3 1 . C 1605-1995 Symbol T Temperature r m e “C -270 to O O to 400 Interpolation equation E = 3 i=l %ti (pV) Where, al= a, = a3 = a , = a , = Us = a7 = a , = a9 = aio = ail= aiz= ai3 = a14=
29、3.874 810 636 4X 10 4.419 443 434 7X lo-* 1.184 432 310 5 x lo- 2.0032973554x10-5 9.013 801 955 9 x 2.265 115 659 3 x 3.607 115 420 5 x 3.849 393 988 3 x 10-l2 2.821 352 192 5 x lo- 1.425 159 477 9 x 4.876 866 228 6 x 10-19 1 .O79 553 927 Ox 1.394 502 706 2 x 7.979 515 392 7 x 10-28 n i=l E = Z aiti
30、 (pv) Where, al = 3.874 810 636 4 x 10 a, = &= 2.0618243404XlO- a, = -2.188 225 684 6 X as= 1.099688092810- a,=-3.081 5758772x1O-l1 a,= 4.547913 52!90X10-14 as=-2.751290167310-17 3.329 222 788 OX Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/11
31、11111001, User=Wing, Bernie Not for Resale, 03/13/2007 22:15:39 MDTNo reproduction or networking permitted without license from IHS -,-,- J I S C+LbOS 75 = 4733608 052L17 TT2 = C 1605-1995 Edition 1 Japanese Text Established by Minister of International Trade and Industry Date of Establishment: 1982
32、-11-01 Date of Revision: 1995-07-01 Date of Public Notice in Official Gazette: Investigated by: 1995-07-03 Japanese Industrial Standards Committee Divisional Council on Electricity This English translation is published by: Japanese Standards Association 1-24, Akasaka 4, Minato-ku, Tokyo 107 Japan O JSA, 1996 Printed in Tokyo by Hohbunsha Co., Ltd. Copyright Japanese Standards Association Provided by IHS under license with JSALicensee=IHS Employees/1111111001, User=Wing, Bernie Not for Resale, 03/13/2007 22:15:39 MDTNo reproduction or networking permitted without license from IHS -,-,-