GB/T 3954-2014 English PDF (GBT3954-2014)

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GB/T 3954-2014: Aluminium and aluminium alloys rod for electrical purpose
GB/T 3954-2014
GB
NATIONAL STANDARD OF
THE PEOPLE’S REPUBLIC OF CHINA
ICS 77.150.10
H 61
Replacing GB/T 3954-2008
Aluminum and aluminum
alloys rod for electrical purpose
ISSUED ON. JULY 24, 2014
IMPLEMENTED ON. FEBRUARY 1, 2015
Issued by. General Administration of Quality Supervision, Inspection
and Quarantine;
Standardization Administration Committee.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Requirements ... 5 
4 Test methods ... 8 
5 Inspection rules ... 9 
6 Marks, packaging, transport and storage ... 11 
7 Purchase order (or contract) content ... 12 
Annex A (Informative) Comparison on product model ... 13 
Annex B (Informative) Comparison on resistivity and conductivity ... 14 
Foreword
This Standard was drafted in accordance with the rules given in GB/T
1.1-2009.
This Standard replaces GB/T 3954-2008 Aluminium and aluminium alloys rod
for electrical purpose.
Compared with GB/T 3954-2008, the main modifications in this Standard are
as follows.
- added product designations. 1350, 1370, 8A07, 5030; and specified its
physical and chemical properties;
- specified the state of each designation of products;
- made chemical composition of each designation of products as
determination reference, unless otherwise agreed;
- deleted the description on product model from the text; added Annex A
“Comparison on product model”;
- added Annex B “Comparison on resistivity and volume conductivity”.
This Standard shall be under the jurisdiction of National Technical Committee
on Nonferrous Metals of Standardization Administration of China (SAC/TC
243).
Main drafting organizations of this Standard. Baotou Aluminum Co., Ltd.,
General Purpose Cable (China), Yunnan Aluminum Industry Co., Ltd., CLP
Investment Ningxia Qingtongxia Energy Aluminum Group Co., Ltd.
The drafting organizations of this Standard. Fujian Nanping Aluminum
Industry Co., Ltd., Hangzhou Feixiang Aluminum Industry Co., Ltd., China
Aluminum Industry Co., Ltd. Guizhou Branch, Shandong Nanshan Aluminum
Industry Co., Ltd., Foshan Nanhai Antaike Economic and Trade Co., Ltd.
Main drafters of this Standard. Wang Yunli, Zhao Hongsheng, Shen Qinghua,
Xu Jing, Tan Bingwen, Jiang Hua, Tian Yongfeng, Li Quan, Guo Youjun,
Zhang Hui, Wang Tianyu, Wan Hongmei.
Aluminum and aluminum
alloys rod for electrical purpose
1 Scope
This Standard specifies the requirements, test methods, inspection rules,
marks, packaging, storage, quality certificate and purchase order (or contract)
of aluminum and aluminum alloys rod for electrical purpose.
This Standard is applicable to continuous casting and rolling electric
aluminum and aluminum alloys rod for electrical purpose of drawn wire, cable
conductive wire with round aluminum wire, aluminum wire and other electrical
aluminum conductor.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including
any amendments) applies.
GB/T 3048.2, Test methods for electrical properties of electric cables and
wires - Part 2. Test of electrical resistivity of metallic materials
GB/T 3190, Wrought aluminium and aluminium alloy - Chemical
composition
GB/T 4909.2, Test methods for bare wires - Part 2. Measurement of
dimensions
GB/T 4909.3, Test methods for bare wires - Part 3. Tensile test
GB/T 7999, Optical emission spectrometric analysis method of aluminum
and aluminum alloys
GB/T 8170, Rules of rounding off for numerical values and expression and
judgement of limiting values
GB/T 17432, Methods for sampling for analyzing the chemical composition
of wrought aluminum and aluminum alloys
GB/T 20975 (all parts), Methods for chemical analysis of aluminium and
The measurements of tensile strength and elongation rate shall comply with
the provisions of GB/T 4909.3.
4.4 Resistivity
The resistivity test shall be carried out according to the provisions of GB/T
3048.2.
4.5 Heat resistance
The heat resistance inspection method of aluminum and aluminum alloys rod
for electrical purpose with designation of 8A07 shall be carried out according
to the following steps.
a) insulate the 8A07 aluminum alloy rod in the insulation furnace for 1h
according to the requirements of Table 5;
b) inspect the tensile strength after naturally cooling the insulated
aluminum alloy rod to room temperature;
c) 8A07 aluminum alloy rod heat resistance (tensile strength residual rate).
the same designation shall be in accordance with the ratio BETWEEN
tensile strength after method a) insulation treatment AND un-insulated
tensile strength under natural state after production.
4.6 Appearance quality
The appearance quality shall be visually inspected.
4.7 Numerical value rounding and determination
The numerical value rounding and determination shall be carried out
according to the provisions of GB/T 8170.
5 Inspection rules
5.1 Inspection and acceptance
5.1.1 The aluminum and aluminum alloys rod for electrical purpose shall be
inspected by the supplier’s technical supervision department to ensure that
the product quality shall be in accordance with the provisions of this Standard
(or purchase contract). And fill in the quality certificate.
5.1.2 The purchaser shall inspect the product received according to the
provisions of this Standard. If the inspection results do not comply with the
provisions of this Standard and purchase order, the purchaser shall put
forward to the supplier within one month since the date of receipt of the
5.5.2 If any indicator in tensile strength, elongation, resistivity and 8A07
aluminum alloy rod heat resistance fails, for big roll, it shall extract double
samples from the roll represented by the unqualified sample to repeat the test.
If there is still a sample failed, then this roll shall be determined as unqualified.
For small roll, it shall extract double samples from the roll represented by the
unqualified sample to repeat the test. If there is still a sample failed, then
these 2 rolls shall be determined as unqualified. However, the inspection by
rolls shall be carried out after agreement by the supplier and the purchaser.
Qualified delivery.
5.5.3 When the size deviation is unqualified, this roll shall be determined as
unqualified.
5.5.4 When the appearance quality is unqualified, this roll shall be
determined as unqualified. But the supplier is allowed to cut out the
unqualified part for re-inspection. Qualified delivery.
6 Marks, packaging, transport and storage
6.1 Marks
Each roll of qualified aluminum and aluminum alloys rod for electrical purpose
shall be attached with label, at least indicating the following information.
a) supplier’s name;
b) product’s name, designation;
c) diameter;
d) batch number;
e) state;
f) net weight;
g) date of production;
h) reference to this Standard.
6.2 Packaging
The aluminum and aluminum alloys rod for electrical purpose shall be
packaged in rolls and well tied. If purchaser has special requirements for
packaging, it shall be negotiated by the supplier and the purchaser and
indicated in the purchase order (or contract).
6.3 Transport, storage