Search result: NB/T 10306-2019
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(Copper tape for cable shielding)
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NB/T 10306-2019
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| Standard ID | NB/T 10306-2019 (NB/T10306-2019) | | Description (Translated English) | (Copper tape for cable shielding) | | Sector / Industry | Energy Industry Standard (Recommended) | | Classification of Chinese Standard | K11 | | Classification of International Standard | 29.060.10 | | Word Count Estimation | 10,197 | | Date of Issue | 2019-11-04 | | Date of Implementation | 2020-05-01 |
NB/T 10306-2019
Copper strip for cable shield
ICS 29.060.10
K11
NB
Energy Industry Standards of the People's Republic of China
Copper tape for cable shielding
2019-11-04 released
2020-05-01 implementation
Issued by National Energy Administration
Table of contents
Foreword...Ⅲ
1 Scope...3
2 Normative references...3
3 Requirements...3
4 Test method...5
5 Inspection rules...6
6 Marking, packaging, transportation and storage...7
Preface
This standard was drafted in accordance with the rules given in GB/T 1.1-2009 "Guidelines for Standardization Work Part 1.Standard Structure and Compilation".
This standard was proposed by China Electrical Equipment Industry Association.
This standard is under the jurisdiction of the National Bare Wire Standardization Technical Committee (SAC/TC 422).
Drafting organizations of this standard. Shanghai Cable Research Institute Co., Ltd., Zhongtian Alloy Technology Co., Ltd., Zhejiang Libo Industrial Co., Ltd.,
Zhuhai Hansen Technology Co., Ltd., Chinalco Huazhong Copper Co., Ltd., Shanghai National Cable Testing Center Co., Ltd., Qingdao Hanlan Co., Ltd.
Company, Chongqing Taishan Cable Co., Ltd., Far East Cable Co., Ltd., Shandong Huaneng Cable Co., Ltd., Shandong Taikai Cable Co., Ltd.,
Jiangsu Zhongli Group Co., Ltd. etc.
The main drafters of this standard. Yao Dawei, Zhang Yuanwang, Zhang Da, Xu Gaolei, Wei Xiaolan, Dong Zhenxing, Ding Zhenpei, Zhang Yanhua, Liang Junling,
Xu Jing, Zhao Hui, Li Zhong, Liu Yanxin, etc.
Copper tape for cable shielding
1 Scope
This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation and storage of copper tape for cable shielding.
This standard applies to copper tape used for shielding power cables, electronic cables, radio frequency cables, communication cables, and control cables.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 228.1-2010 Metallic materials tensile test Part 1.Room temperature test method
GB/T 3048.2 Test methods for electrical properties of wires and cables Part 2.Resistivity test of metallic materials
GB/T 4340.1 Vickers hardness test of metallic materials Part 1.Test method
GB/T 5121 (all parts) Copper and copper alloy chemical analysis methods
GB/T 5231 Processed copper and copper alloy grades and chemical composition
GB/T 8888 Packaging, marking, transportation and storage of heavy non-ferrous metal processing products
GB/T 26303.3 Copper and copper alloy processed material outline dimension test method Part 3.Plate and strip
YS/T 478 Copper and copper alloy conductive eddy current testing method
YS/T 482 Copper and copper alloy analysis method photoelectric emission spectrometry
YS/T 668 Copper and copper alloy physical and chemical testing sampling method
3 requirements
3.1 Product Classification
3.1.1 Brand, status, specification
The brand, state, and specification of the copper tape used for cable shielding should meet the requirements in Table 1.
Note 1.After negotiation between the supplier and the buyer, other grades, conditions and specifications of copper tape for cable shielding can also be supplied.
Note 2.The length of the product is negotiated between the supplier and the buyer.
3.1.2 Representation
The product mark is expressed in the order of product code, specification, and standard number.
3.2 Chemical composition
The chemical composition of TUP0.003 should meet the requirements of Table 2.The chemical composition of other brands should meet the requirements of the corresponding brands in GB/T 5231.
3.3 Dimensions and allowable deviation
3.3.1 The thickness of the copper tape used for cable shielding and its allowable deviation shall meet the requirements of Table 3.
3.3.2 The width and allowable deviation of the copper tape for cable shielding should meet the requirements of Table 4.
3.3.3 The shape of the copper tape for cable shielding should be flat and straight, and its side curvature should not exceed 1.5 mm/m.
3.3.4 The two sides of the copper tape for cable shielding should be cut neatly without burrs, cracks and curling. The unevenness of any two adjacent layers of the coil should not exceed 1
mm, the unevenness of any two layers, the thickness of 0.2 mm and below does not exceed 1 mm, and the thickness above 0.2 mm does not exceed 2 mm.
3.4 Mechanical properties
The mechanical properties of the copper tape for cable shielding should meet the requirements in Table 5.The results of the Vickers hardness test are for reference only.
Note. For strips with a thickness of less than 0.2 mm, the test results are for reference only or negotiated between the supplier and the buyer.
3.5 Electrical performance
When tested at a temperature of 20 ℃, the electrical properties of the copper tape for cable shielding should meet the requirements in Table 6.
3.6 Surface quality
3.6.1 The surface of the copper tape for cable shielding should be smooth, clean, free of oxidation and discoloration, and no defects that may affect the use of it are allowed.
3.6.2 Each strip of strip should be wound tightly and neatly. When there is a core, the size of the core should be negotiated between the supplier and the buyer.
4 Test method
4.1 Chemical composition
The chemical composition analysis of copper tape for cable shielding shall be carried out in accordance with the provisions of GB/T 5121 (all parts) or YS/T 482, and the arbitration analysis method
According to the provisions of GB/T 5121 (all parts).
4.2 Dimensions and allowable deviation
The external dimension test of the copper tape for cable shielding shall be carried out in accordance with the regulations of GB/T 26303.3.
4.3 Mechanical properties
The tensile strength and elongation test of the copper tape for cable shielding shall be carried out in accordance with the provisions of GB/T 228.1-2010.The sample number is GB/T
P02 in Appendix B of 228.1-2010.The Vickers hardness test is carried out in accordance with the regulations of GB/T 4340.1.It is not recommended to test specimens with a thickness less than 0.2 mm
Test the hardness.
4.4 Electrical performance
The electrical performance test of the copper tape for cable shielding shall be carried out in accordance with the provisions of GB/T 3048.2 or YS/T 478.According to GB/T 3048.2 during arbitration
The regulations are tested.
4.5 Surface quality
The surface quality of the copper tape for cable shielding should be inspected visually.
5 Inspection rules
5.1 Inspection
The copper tape used for cable shielding shall be inspected according to Table 7.The copper strip shall be inspected and qualified by the manufacturer before leaving the factory. Each batch of products shipped
The product quality inspection certificate of the manufacturer shall be attached.
5.2 Sampling
The sampling of copper tape for cable shielding should meet the requirements in Table 8.The sampling method is carried out according to YS/T 668.
5.3 Judgment of inspection results
5.3.1 When the chemical composition is unqualified, the batch of strips shall be deemed unqualified.
5.3.2 When the external dimensions and their allowable deviations and surface quality are unqualified, the coil is judged to be unqualified.
5.3.3 When the test results of tensile strength, elongation, Vickers hardness and electrical properties have unqualified samples, the strips (including the
(Including the strip that failed the original inspection), take another double number of samples for repeated testing, and if the repeated test results are all qualified, the whole batch will be judged
The strip is qualified. If the repeated test results still have unqualified samples, the batch of strips shall be deemed unqualified, or the supplier shall inspect the strips one by one and deliver the qualified ones.
6 Marking, packaging, transportation and storage
6.1 Logo
The package of copper tape for cable shielding should be attached with a label indicating.
a) The name, trademark and address of the manufacturer;
b) Product name and specifications;
c) Production batch number;
d) Gross weight and net weight (kg);
e) Date of manufacture;
f) Number of this standard;
g) Pictorial signs for precautions during transportation and storage.
6.2 Packaging, transportation and storage
Packaging, transportation, and storage should comply with GB/T 8888.
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