GB/T 36016-2018 in English
VALIDSheathed continuous thermocouple cables and sheathed continuous thermocouple
- Issued on:2018-03-15
- Implemented on:2018-10-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$204.00
《GB/T 36016-2018铠装连续热电偶电缆及铠装连续热电偶》由TC419（全国仪表功能材料标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
Interpretation of the core content of the standard
GB/T 36016-2018 specifies the key technical requirements for armored continuous thermocouple cable and its components:
| Technical indicators | Parameter requirements | Test methods |
|---|---|---|
| Working temperature range | 80-800℃ | Appendix A Graduation table |
| Tolerance level | Grade I ±6℃/3%t; Grade II ±10℃/5%t | 5.4 Thermoelectric performance test |
| Uniformity (300℃) | ≤15℃ | 5.5 Uniformity test |
| Minimum bending radius | 20 times the outer diameter | 5.7 Bending test |
Product structure characteristics
The standard defines two typical structures:
- Armored continuous thermocouple cable: a three-layer structure consisting of thermocouple wire, thermal sensitive material and metal protection tube
- Armored continuous thermocouple: a complete temperature measurement component of cable + connector + compensation wire
Detailed explanation of key technical requirements
4.4 Thermoelectric performance and tolerance
Using the Seebeck coefficient mathematical model (Formula A.1), the thermoelectric emf rate of the main temperature points is:
- At 300℃: 41.32μV/℃
- At 600℃: 42.54μV/℃
- At 800℃: 41.10μV/℃
5.4 Thermoelectric performance test
Test equipment requirements:
| Temperature range | Constant temperature box specifications | Electrical measuring instrument requirements |
|---|---|---|
| ≤300℃ | 400×400×300mm, uniformity≤2℃ | Input impedance≥10MΩ, error≤0.05% |
| ＞300℃ | 300×300×200mm, uniformity ≤5℃ | resolution ≥2μV |
Engineering application suggestions
Selection guide
Product marking example: WLKK-211-I-3.0 means:
- W: connected temperature instrument
- L: continuous thermocouple
- KK: armored + K type thermocouple
- 2: double core structure
- 1: inseparable integrated joint
- I: Class I tolerance
- 3.0: outer diameter 3.0mm
Installation precautions
- Bending radius ≥20 times cable outer diameter
- Immersion applications require end sealing (welding/sealant)
- Customized length within the range of 2-40m, positive deviation ≤0.1m
Standard Evolution Analysis
This standard systematically regulates the following for the first time:
- Thermo-electromotive force-temperature characteristic mathematical model
- Complete product marking system
- Protective tube integrity detection method
- Standardized structure based on Inconel600 alloy
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