IEC 61515-2016 pdf download.Mineral insulated metal-sheathed thermocouple cables and thermocouples.
This International Standard establishes the requirements for simplex, duplex and triplex mineral-insulated metal-sheathed thermocouple cables and thermocouples, which are intended for use in general industrial applications. The abbreviation MIMS (for “mineral-insulated metal-sheathed”) will be used hereafter. It covers thermocouple cables and thermocouples with only base-metal conductors of Types T, J, E, K and N. The specifications in this standard apply to new thermocouple cables and thermocouple units as delivered to the user. They do not apply to the product after use. External seals, terminations, connections and other accessories are not within the scope of this International Standard. This standard does not apply to precious metal thermocouple cables and thermocouples. The special requirements for nuclear primary loop applications are dealt with in the other standards.
2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60068-2-6, Environmental testing – Part 2-6: Tests – Test Fc: Vibration (sinusoidal) IEC 60584-1 , Thermocouples: Part 1 – EMF specifications and tolerances ISO 1 302, Geometrical Product Specifications (GPS) — Indication of surface texture in technical product documentation
3 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 60584-1 and the following apply.
3.1 mineral insulated metal-sheathed thermocouple cable bendable cable consisting of one or more pairs of thermocouple conductors encapsulated in a metal protecting sheath, insulated from each other and from the sheath by a compacted mineral material Note 1 to entry: Abbreviation MIMS for “mineral insulated metal-sheathed” is used hereafter.
3.2 MIMS thermocouple thermocouple manufactured from mineral-insulated metal-sheathed thermocouple cable Note 1 to entry: This note applies to the French language only.
3.3 simplex thermocouple
thermocouple unit comprising one pair of thermocouple conductors
3.4 duplex thermocouple
thermocouple unit comprising two pairs of thermocouple conductors
3.5 triplex thermocouple
thermocouple unit comprising three pairs of thermocouple conductors
3.6 measuring junction
junction of the thermocouple conductors which is subjected to the temperature to be measured
3.7 grounded junction
bonded junction earthed junction measuring junction electrically connected to the metal sheath
3.8 insulated junction
ungrounded junction measuring junction electrically insulated from the metal sheath
3.9 thermal response time
time a thermocouple takes to respond at a specified percentage to a step change in temperature
Note 1 to entry: The time to register 50 % of the step change, for example, is written τ 0,5 .
Note 2 to entry: The test medium and its flow conditions shall be specified (usually flowing water or flowing air).
3.1 0 type test
test conducted on one or more samples of the production to verify that the product is compliant with the requirements of IEC 61 51 5 following the introduction or change of material specification, design or manufacturing process
3.1 1 routine test
test to which each individual product is subjected during or after manufacture to ascertain whether it complies with the requirements of IEC 61 51 5
3.1 2 optional test
test that is performed upon agreement between a supplier and a user to ensure compliance with the user’s specific application
4 General principles
4.1 A MIMS thermocouple
A MIMS thermocouple specified in this standard shall be made of a MIMS thermocouple cable that complies with this standard.IEC 61515 pdf download.