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GB/T 12970.4-2009 English PDF

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Upon your order, we will start to translate GB/T 12970.4-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

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Q: Should I purchase the latest version GB/T 12970.4-2009?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 12970.4-2009 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 12970.4-2009: Flexible copper stranded conductors for electrical purposes -- Part 4: Copper wires for electric brush
Status: Valid

GB/T 12970.4: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 12970.4-2009	139	Add to Cart	3 days	Flexible copper stranded conductors for electrical purposes -- Part 4: Copper wires for electric brush	Valid
GB/T 12970.4-1991	199	Add to Cart	2 days	Flexible copper stranded conductors for electrical purposes--Part 4: Copper brush wires	Obsolete

Similar standards

GB/T 4910 GB/T 5585.1 GB/T 5585.2 GB/T 12971.1 GB/T 12970.3 GB/T 12970.1

Basic data

Standard ID: GB/T 12970.4-2009 (GB/T12970.4-2009)
Description (Translated English): Flexible copper stranded conductors for electrical purposes -- Part 4: Copper wires for electric brush
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K11
Classification of International Standard: 29.060.10
Word Count Estimation: 6,681
Date of Issue: 2009-03-19
Date of Implementation: 2009-12-01
Older Standard (superseded by this standard): GB/T 12970.4-1991
Quoted Standard: GB/T 3048.4-2007; GB/T 4909.2-2009; GB/T 4909.3-2009; GB/T 12970.1-2009
Regulation (derived from): Announcement of Newly Approved National Standards No. 3, 2009 (No. 143 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the copper brush wire model specifications, technical requirements and testing. This section applies to motor electrical and instrumentation lines connecting the copper brush wire. This part should GB/T 12970. 1-2009 together.

GB/T 12970.4-2009: Flexible copper stranded conductors for electrical purposes -- Part 4: Copper wires for electric brush

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Flexilbe copper stranded conductors for electrical purposes Part 4. Copper wires for electric brush ICS 29.060.10 K11 National Standards of People's Republic of China Replacing GB/T 12970.4-1991 Electrical soft copper wire Part 4. Copper wire brush Posted 2009-03-19 2009-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 12970 "Electrical soft copper stranded" is divided into four parts. --- Part 1. General requirements; --- Part 2. soft copper wire; --- Part 3. Flexible copper antenna; --- Part 4. Copper wire brush. This section GB/T Part of 412,970. This Part replaces GB/T 12970.4-1991 "electrician soft copper stranded Part 4. Copper wire brush." This section compared with the GB/T 12970.4-1991 The main changes are as follows. --- Remove section provides the structure and process requirements (before version 4.1.3 and 4.3.3); --- Part of the process requirements of the structural adjustment (before version 4.3.1 and 4.3.2, 4.1.3 and 4.1.4 of this edition); --- Modify the length of the manufacturing requirements (before version 4.8, this version 4.7). This part is proposed by the China Electrical Equipment Industrial Association. This part of the National Standardization Technical Committee Wire and Cable (SAC/TC213) centralized. This part of the unit responsible for drafting. Shanghai Electric Cable Research Institute. Participated in the drafting of this section. Shenzhen, China Cable Co., Ltd., Shanghai copper metal braid copper plant Jiang Su Jiangrun Copper Co. the company. The main drafters of this section. Liu Bin, party Peng, Zhang Peng, Chenya Fu, Liu Liming. This part of the standard replaces the previous editions are. --- GB/T 12970.4-1991. Electrical soft copper wire Part 4. Copper wire brush

1 Scope

GB/T 12970 provisions of this section copper brush wire model specifications, technical requirements and testing. This section applies to electrical and motor on the instrument line connecting copper wire brush. This section should be used in conjunction with the GB/T 12970.1-2009.

2 Normative references

The following documents contain provisions which, through reference GB/T 12970 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 3048.4-2007 electrical wire and cable performance test methods - Part 4. Conductor DC resistance test GB/T 4909.2-2009 Test methods for bare wires - Part 2. Measure GB/T 4909.3-2009 Test methods for bare wires - Part 3. Tensile Test GB/T 12970.1-2009 Electrical soft copper wire - Part 1. General requirements

3 models and specifications

Copper brush wire models and specifications shown in Table 1. Table 1 copper wire brush type and specifications Model Name Nominal cross-sectional area mm2 TS TSX TSR Copper wire brush Tinned copper wire brush Soft copper wire brush 0.25 to 16 0.25 to 16 0.063 to 6.3 4. Technical Requirements 4.1 Structure 4.1.1 TS-type structure and TSX copper brush wire should meet the requirements of Table 2. Structure 4.1.2 TSR soft copper wire brush should be in accordance with Table 3. 4.1.3 There should be no shortage of brush line stocks, shares or broken strands damage phenomenon, the strands do not allow the entire shares welding. 4.1.4 lack of individual strands of wire should not exceed 3% of the total number of strands in a single line. 4.2 Stranded 4.2.1 wire brush to the outermost layer should be twisted to the right. Unless otherwise supply and demand sides of lay protocol, adjacent layers should contrast, the twisted strands by Specified by the manufacturer. Section 4.2.2 twisted inner diameter ratio should be less than 12, the outer stranding pitch diameter ratio should be 8 to 10. Section 4.2.3 strand diameter ratio should be less than 25. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 12970.4-2009_English be delivered?

Answer: Upon your order, we will start to translate GB/T 12970.4-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 12970.4-2009_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 12970.4-2009_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 12970.4-2009?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 12970.4-2009 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.