ASTM E585 E585M-2012 red 8866 Standard Specification for Compacted Mineral-Insulated Metal-Sheathed Base Metal Thermocouple Cable 《压实的矿物绝缘、金属铠装、基底金属热电偶电缆的标准规格》.pdf

1、Designation:E585/E585M09 Designation: E585/E585M 12Standard Specification forCompacted Mineral-Insulated, Metal-Sheathed, Base MetalThermocouple Cable1This standard is issued under the fixed designation E585/E585M; the number immediately following the designation indicates the yearof original adopti

2、on or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification establishes requirements for compacted, mineral-insulat

3、ed, metal-sheathed, base metal thermocouplecable,2with at least two thermoelements.31.2 This specification describes the required material, processing and testing requirements, and also the optional supplementarytesting and quality assurance and verification choices.1.3 The material of construction

4、includes standard base metal thermoelements, austenitic stainless steel or other corrosionresistant sheath material, and either magnesia (MgO) or alumina (Al2O3) insulation.1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in ea

5、chsystem may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is

6、 the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 The following documents of the latest issue form a part of this specification to the extent specified

7、herein. In the event ofa conflict between this specification and other specifications referenced herein, this specification shall take precedence.2.2 ASTM Standards:4A213/A213M Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger TubesA249/A249M Spec

8、ification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser TubesA269 Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General ServiceA632 Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Serv

9、iceB163 Specification for Seamless Nickel and Nickel Alloy (UNS N06845) Condenser and Heat-Exchanger TubesB167 Specification for Nickel-Chromium-Iron Alloys (UNS N06600, N06601, N06603, N06690, N06693, N06025, N06045,and N06696), Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617), and Nickel-Iron-

10、Chromium-Tungsten Alloy(UNS N06674) Seamless Pipe and TubeB516 Specification for Welded Nickel-Chromium-Iron Alloy (UNS N06600, UNS N06603, UNS N06025, and UNS N06045)TubesE220 Test Method for Calibration of Thermocouples By Comparison TechniquesE230 Specification and Temperature-Electromotive Force

11、 (EMF) Tables for Standardized ThermocouplesE235 Specification for Thermocouples, Sheathed, Type K and Type N, for Nuclear or for Other High-Reliability ApplicationsE344 Terminology Relating to Thermometry and HydrometryE608 Specification for Mineral-Insulated, Metal-Sheathed Base Metal Thermocouple

12、sE780 Test Method for Measuring the Insulation Resistance of Mineral-Insulated, Metal-Sheathed Thermocouples andThermocouple Cable at Room TemperatureE839 Test Methods for Sheathed Thermocouples and Sheathed Thermocouple CableE1652 Specification for Magnesium Oxide and Aluminum Oxide Powder and Crus

13、hable Insulators Used in the Manufacture of1This specification is under the jurisdiction of ASTM Committee E20 on Temperature Measurement and is the direct responsibility of Subcommittee E20.04 onThermocouples.Current edition approved JuneMay 1, 2009.2012. Published September 2009.June 2012. Origina

14、lly approved in 1996. Last previous edition approved in 20042009 asE585/E585M-049. DOI: 10.1520/E0585_E0585M-0912.2The terms “metal sheathed thermocouple cable” or “cable” will be used to describe the subject description.3“Wire” is also used to describe “thermoelements.”4For referenced ASTM standard

15、s, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.1This document is not an ASTM standard and is intended only to provide the user of an AS

16、TM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published

17、 by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Metal-Sheathed Platinum Resistance Thermometers, Base Metal Thermocouples, and Noble Metal Thermocouples2.3 ANSI Standard:ANSI B46.1 Su

18、rface Texture53. Terminology3.1 DefinitionsThe definitions given in Terminology E344 shall apply to this specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 adjacent thermoelement configuration, nthermoelement configuration within a multi-pair cable where two or morepositive therm

19、oelements are immediately adjacent to one another around the circular pattern and two or more negativethermoelements are also immediately adjacent to one another around the circular pattern as shown in Fig. 1 (compare withalternating thermoelement configuration in Fig. 2).3.2.1.1 DiscussionBy defaul

20、t, a multi-pair cable with a thermoelement in the center must be considered an adjacentconfiguration.3.2.2 alternating thermoelement configuration, nthermoelement configuration within a multi-pair cable where positivethermoelements and negative thermoelements alternate around the circular pattern as

21、 shown in Fig. 2 (compare with adjacentthermoelement configuration in Fig. 1).3.2.2.1 DiscussionIn an alternating thermoelement pattern, there are never two or more positive thermoelements nor two ormore negative thermoelements immediately adjacent to one another.3.2.3 lot, na quantity of finished m

22、ineral-insulated, metal-sheathed thermocouple cable manufactured from tubing from thesame heat, wire from the same spool and heat, and insulation from the same batch then assembled and processed together undercontrolled production conditions to the required final outside diameter.3.2.4 raw material,

23、 ntubing, insulation, and wires used in fabrication of the sheathed thermocouple cable.4. Significance and Use4.1 Thermocouple Cable may be Used as Follows:4.1.1 Sheathed thermocouple cable for use in manufacturing thermocouples (see Specification E608).4.1.2 Sheathed thermocouple cable for use as e

24、xtension cable in extremely harsh environments.5. Ordering Information and Basis for Purchase5.1 The purchasing documents shall specify the following options:5.1.1 The total length of finished thermocouple cable and the length of each piece of finished thermocouple cable.5.1.2 The type and quantity

25、of thermoelements, the thermoelement configuration (see 3.2.1 and 3.2.2), and the tolerance oninitial values of emf versus temperature if other than standard (see 6.2). Consult individual manufacturers for the number ofthermoelements limited by cable size.5.1.3 The kind of sheath material (see 7.3)

26、and whether it shall be seamless or welded and drawn. Note that other sheath materialmay be used with purchaser and producer agreement.5.1.4 The nominal outside diameter of the sheath (see 6.3).5.1.5 The kind of ceramic insulation (see 7.2). Note that other insulation composition and impurity levels

27、 may be used withpurchaser and producer agreement.5.1.6 The intended operating temperature range of the cable (see 9.8).5.1.7 The kind of end seal applied to the open ends, prior to shipment (see 11.1).5.1.8 Supplementary testing or material requirements (see Supplementary Requirements).5.1.9 The qu

28、ality assurance or verification program requirements or both (see Appendix X1).5.1.10 Any deviations from this specification or the referenced documents.6. General Requirements6.1 Mineral-Insulated, MetalSheathed Thermocouple CableCable shall be in accordance with this specification (see Fig. 3).Thi

29、s figure describes a cable with two thermoelements, but more than two thermoelements may be specified.5Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.FIG. 1 Examples of Adjacent ConfigurationsE585/E585M 1226.2 Tolerances

30、 on Initial Values of Emf versus TemperatureThe standard tolerances of Specification E230 apply unlessotherwise stated in the ordering information.6.3 DimensionsThe dimensional and tolerance requirements for sheath diameter and wall thickness, thermoelement diameter,and insulation thickness depicted

31、 in Fig. 3 shall be based on nominal sheath outside diameters. The preferred cable sizes are listedin Table 1. For any nominal sheath size, the outside diameter tolerance, A, shall be 60.025 mm 0.001 in. or 61 %, whicheveris greater. The wall thickness, B, shall be at least 10 % of the nominal sheat

32、h outside diameter and shall be uniform within 20 %of the minimum required wall thickness. The thermoelement diameters, D, shall be at least 15 % of the nominal sheath outsidediameter if two thermoelements are included, at least 12 % of the nominal sheath outside diameter if four thermoelements arei

33、ncluded, or at least 9 % of the nominal sheath outside diameter if six thermoelements are included. All thermoelement diametersshall be uniform within 20 % of their minimum required diameters. The insulation thickness, C, either thermoelement tothermoelement or thermoelement to inside surface of the

34、 sheath, shall be at least 7 % of the nominal sheath outside diameter iftwo thermoelements are included, at least 5.5 % of the nominal sheath outside diameter if four thermoelements are included, orat least 4 % of the nominal sheath outside diameter if six thermoelements are included. The inside she

35、ath diameter is equal toDiameter A minus two times dimension B. Dimensions shall be measured in accordance with Test Methods E839. The minimumdimensional requirements for sheath wall thickness, thermoelement diameter, and insulation thickness are summarized in Table 2.The purchaser need only specify

36、 the outside diameter and number of thermoelements in the ordering documents.6.4 MaterialsThe thermocouple cable shall be fabricated from component parts specified in Section 7.6.5 Insulation Resistance at Room TemperatureThe minimum electric insulation resistance between thermoelements andbetween e

37、ach thermoelement and the sheath (at room temperature) shall be as specified in Table 3, for the voltages noted. Thevalues of insulation resistance, given in megohms, shall apply to the supplied lengths. See Test Methods E780 and E839.6.6 Minimum Insulation DensityThe minimum density of the compacte

38、d electric insulation shall be 70 % of the maximumtheoretical density which is 3580 kg/m30.129 lb/in.3 for MgO, and 3970 kg/m30.144 lb/in.3 for Al2O3.6See alsoSupplementary Requirement S6.1.6Handbook of Chemistry and Physics, Chemical Rubber Publishing Co., No. 76 (1995) edition.FIG. 2 Examples of A

39、lternating ConfigurationsFIG. 3 Sheathed Thermocouple Material Construction(See Table 1)TABLE 1 Dimensions of Metal Sheathed Thermocouple Cable inSI (Metric) and Inch-Pound UnitsPreferred SizesNominal Outside Diameter, A, in millimetres inchesDiametermillimetres inches0.50 0.020. . . 0.0321.00 0.040

40、1.50 0.0622.00 . . . . . 0.0933.00 0.1254.50 0.1886.00 0.2508.00 0.375E585/E585M 1236.7 Sheath ConditionThe sheath shall be free of visible surface contaminants and oxidation. The sheath shall be in the fullyannealed state for Type E, J, K, and N thermocouple material. For Type T material, the sheat

41、h shall be annealed to the extent thatthe thermoelements will permit. Tests for proving conformance are in Supplementary Requirement S2 or S9.6.8 Sheath IntegrityThe sheath of the finished thermocouple cable shall exclude gases and liquids. There shall be no holes,cracks, or other void defects that

42、penetrate through the sheath wall. Tests for proving conformance to this requirement are inSupplementary Requirement S3.6.9 Quality verification requirements are specified on an optional basis. The purchaser may require material traceability, asdesired (see Appendix X1).6.10 The tests as specified i

43、n the body of this specification are the minimum to determine if the specification requirements havebeen met. Additional optional supplementary requirements are listed in the Supplementary Requirements section and may beincluded in the purchasing order requirements, as desired by the purchaser.7. Ma

44、terial Requirements7.1 Thermoelements:7.1.1 The thermoelements shall be solid wire, round in cross section.7.1.2 The thermoelements shall only be of thermoelectric types: E, J, K, N, or T. All wire used for fabrication shall meet thesupplemental cleanliness requirements of Specification A632, except

45、 that acetone or any other solvents that might leave a harmfulresidue shall not be used for final cleaning.7.1.3 The emf versus temperature relationship shall meet the initial calibration tolerance of 6.2.7.2 Insulation:7.2.1 The insulation shall only be magnesia (MgO) or alumina (Al2O3) conforming

46、to Specification E1652. Unless otherwiseagreed upon between the purchaser and the producer, only Type 1 magnesia or Type 1 alumina shall be used.7.3 Sheath Material:7.3.1 The sheath material may be seamless or welded and drawn tubing of austenitic stainless steel (typically type TP304,TP304L, TP310,

47、 TP310S, TP316, TP316L, TP321, or TP347) or heat-resistant nickel-chrome alloy (typically type Alloy 600,Alloy 601, or Alloy 625).7.3.2 The producers customary tubing specification shall be applicable for the sheath material. See SupplementaryRequirement S8.7.3.3 A nickel-chrome-iron sheath, as in S

48、pecifications B163, B167, or B516, is recommended for fresh water service. Thereare high molybdenum stainless steels that are specifically made for use in salt water, such as type 316 and proprietary alloys.7.3.4 Alternate heat-resistant tubing materials may be specified for the sheath by the produc

49、er, provided the annealingrequirements imposed by 6.7 are satisfied.7.3.5 Each piece of tubing used in the fabrication of thermocouple material shall meet the supplemental cleanlinessrequirements of Specification A632, except that acetone or any other solvents that might leave a harmful residue shall not be usedfor final cleaning.8. Processing Requirements8.1 The producer is responsible for raw materials and all processing to ensure that the overall requirements of this specificationare met. The producer is also responsible for the quality of the finish