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GB/T 3954-2014Aluminium and aluminium alloys rod for electrical purpose (English PDF)

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Issued by

General Administration of Quality Supervision, Inspection and Quarantine

Level / Type

National · Recommended

Issue date

July 24, 2014

Implementation date

February 1, 2015

Scope

GB/T 3954-2014 (Aluminium and aluminium alloys rod for electrical purpose) is available as an English-translated PDF.

GB/T 3954-2014 — 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.

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Document preview — GB/T 3954-2014

National Standard of the People's Republic of China

ICS: 77.150.10
Classification: H 61

Issued by: General Administration of Quality Supervision, Inspection and Quarantine

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 & 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 & 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

......

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 14 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 3048.2 · GB/T 20975

Cited by

GB/T 20840.14-2022Instrument transformers - Part 14: Additional requirements for current transformers for DC applications

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