JB/T 8205-2025 Sheathed Thermocouple Cables Standard
Sheathed base metal thermocouple cables
Standard Details
JB/T 8205-2025 (English Version)
- English translated version
- Sent to your email in 24h
JB/T 8205-2025 (Chinese Version)
- Chinese original version
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Standard Introduction
This document specifies the product classification and technical requirements for sheathed base metal thermocouple cables, describes the corresponding test methods, and stipulates the supply method, packaging and quality certification documents.
This document applies to the manufacture of sheathed thermocouple cables whose thermocouple wires are Chromel‑Alumel, Nicrosil‑Nisil, Chromel‑Constantan, Iron‑Constantan and Copper‑Constantan.
Standard Catalog
The standard consists of the following main sections:
1 Scope
2 Normative References
3 Terms and Definitions
3.1 Sheathed base metal thermocouple cables
3.2 Metal sheath material
3.3 Insulation material
3.4 Thermocouple wire
3.5 Tolerance
3.6 Simplex thermocouple cables
3.7 Duplex thermocouple cables
3.8 Triplex thermocouple cables
4 Product Classification
4.1 Product name, type and thermocouple index
4.2 Number of cores
4.3 Materials
4.4 Recommended maximum operating temperature
4.5 Marking
5 Technical Requirements
5.1 Dimensions
5.2 Surface quality
5.3 Thermoelectric characteristics and tolerances
5.4 Insulation resistance
5.5 Electrical strength
5.6 Bend radius
5.7 Ductility of thermocouple wires
5.8 Sheath integrity
5.9 Electrical continuity
6 Test Methods
7 Inspection Rules
8 Supply Method, Packaging and Quality Certification Documents
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