GB/T 11019-2021 in English
VALIDNickel coated round copper wire
- Issued on:2021-10-11
- Implemented on:2022-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$243.00
《GB/T 11019-2021镀镍圆铜线》由TC422（全国裸电线标准化技术委员会）归口，主管部门为中国电器工业协会。
Introduction
Interpretation of the core content of the standard
As the authoritative standard in the field of nickel-plated round copper wire, GB/T11019-2021 systematically specifies the technical requirements for nickel-plated round copper wire. Compared with the 2009 version, the new version of the standard has significant updates in terms of grade classification, performance indicators, etc.:
Key Innovations
- Added a 5-level nickel content system: Grade 2 (≥2%), Grade 4 (≥4%), Grade 7 (≥7%), Grade 10 (≥10%), Grade 27 (≥27%)
- Association between coating thickness and diameter: Establish a three-dimensional correspondence between nominal diameter-grade-minimum thickness
- Resistivity grading control: The resistivity of grade 27 products is relaxed to 0.024284Ω·mm²/m
Comparative Analysis of Technical Parameters
| Performance Indicators | Requirements of the 2009 Version | Requirements of the 2021 Version | Range of Change |
|---|---|---|---|
| Elongation (d＞0.5mm) | ≥15% | Grade 2-10≥20%, Grade 27≥15% | +5%/- |
| Resistivity (20℃) | ≤0.018342Ω·mm²/m | Grade control (Grade 2≤0.017960) | Optimization 2.1% |
| Coating detection method | Chemical method only | Add electronic method (chemical method for arbitration) | Method +1 |
Implementation points
Typical application scenarios
In the manufacture of high-temperature cables, it is recommended to use grade 27 nickel-plated round copper wire (nominal diameter 1.5mm), the coating thickness of which must be ≥30.1μm, which can meet the requirements of a 300℃ long-term working environment.
Key to quality control
- Diameter measurement requires 6 measuring points according to the standard
- Coating adhesion test adopts equal diameter winding method
- Nickel content arbitration must adopt chemical method
Background of standard evolution
This revision responds to the requirements of international standards such as IEC62368-1, and mainly solves the following problems:
- The original nickel content classification cannot meet the needs of high-end applications
- Insufficient correlation between coating thickness and actual anti-corrosion performance
- The detection method is not in line with international standards
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