This standard specifies the product classification, technical conditions, test methods, and inspection rules for five types of deer metal armored thermocouple cables. This standard applies to armored thermocouple cables with nickel chromium nickel silicon, nickel chromium silicon nickel silicon magnesium, nickel chromium copper nickel, iron copper nickel, and key copper cymbals as thermocouple wires. For multi-core or single core low metal armored thermocouple cables, certain specific provisions (such as size) of this standard may not be adopted. This standard is not applicable to precious metal armored thermocouple cables and armored thermocouple cables for nuclear power plants. 2. The provisions contained in the following standards constitute the provisions of this standard by reference in this standard. At the time of publication of this standard, all versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T 2614-1998 Nickel Chromium Nickel Silicon Thermocouple Wire CB/T 2903-1998 Copper Nickel (Constantan) Thermocouple Wire CB/T 3090-1982 Stainless Steel Small Diameter Steel Pipe CB/T 4993-1998 Iron Copper Nickel (Constantan) Thermocouple Wire GB/T 494-19989 Iron Copper Nickel (Constantan) Thermocouple Wire CB/T 14957-1994 Stainless Steel Seamless Steel Pipe for Structural Use GB/T 15062-1994 General Purpose High Temperature Alloy Pipe CB/T 16839.1-1997 Thermocouple Part 1: Index Table GB/T 16839.2-1997 Thermocouple Part 2: Tolerance CB/T 17615-1998 Nickel Silicon Nickel Magnesium Thermocouple Wire JB/T 6819.2-1993 Instrument Materials Terminology Temperature Measurement Materials 3 Definitions 3.1 Terminology specified in JB/T 6819.2 are applicable to this standard. 3.2 Sheathed base metal thermocouple cables are made by encapsulating and compacting the gold chip thermocouple wires with inorganic insulation and metal tubes into a flexible and solid combination, abbreviated as armored thermocouple cables. 3.3 Sheathed base metal thermocouple is a thermocouple made of low metal armored thermocouple cable, abbreviated as armored thermocouple. 3.4 Raw material: The material used to manufacture metal armored thermocouple cables. 3.4.1 Metal sheath material is a metal tube used to protect the thermocouple wire from direct contact with the tested object or surrounding atmosphere, abbreviated as a sheath. 3.4.2 Insulation material is a powdery inorganic material that insulates the external tube from the thermocouple wire and between the thermocouple wire
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