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GB/T 12944-2011 English PDF

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Q: Should I purchase the latest version GB/T 12944-2011?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 12944-2011 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$579.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 12944-2011: High-voltage ceramic wall bushings
Status: Valid

GB/T 12944: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 12944-2011	579	Add to Cart	5 days	High-voltage ceramic wall bushings	Valid
GB/T 12944.1-1991	359	Add to Cart	3 days	High-voltage ceramic wall bushings--Technical specifications	Obsolete

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Basic data

Standard ID: GB/T 12944-2011 (GB/T12944-2011)
Description (Translated English): High-voltage ceramic wall bushings
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K48
Classification of International Standard: 29.080.10
Word Count Estimation: 25,280
Date of Issue: 2011-07-29
Date of Implementation: 2011-12-01
Older Standard (superseded by this standard): GB/T 12944.2-1991
Quoted Standard: GB/T 197-2003; GB 311.1; GB/T 1804-2000; GB/T 2900.8-2009; GB/T 4109-2008; GB/T 5273-1985; GB/T 5585.1-2005; GB/T 5585.2-2005; GB/T 23752-2009; JB/T 4307-2004
Regulation (derived from): Announcement of Newly Approved National Standards No. 12 of 2011
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 high-voltage ceramic wall bushings technical requirements, testing requirements, structure type, dimensions and characteristics. This standard applies to the nominal voltage of 6kV ~ 35kV, frequency 15Hz ~ 60Hz three-phase AC system power station and substation power distribution devices used in indoor, outdoor indoor ceramic wall bushings (hereinafter referred to as casing). Casing for horizontal installation, indoor casing can be installed upright. This standard does not apply to conditions sufficient to reduce the performance under the casing and casing end surface condensation indoors circumstances under casing.

GB/T 12944-2011: High-voltage ceramic wall bushings

---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.
High-voltage ceramic wall bushings ICS 29.080.10 K48 National Standards of People's Republic of China Replacing GB/T 12944.2-1991 High voltage ceramic wall bushings Issued on. 2011-07-29 2011-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 operating conditions, ordering information and identification 1 5 structure type 1 5.1 The basic structure of the sleeve type 1 5.2 sleeve type 1 6 2 Technical Requirements 6.1 general requirements 2 6.2 Dimensions and characteristics 2 6.3 size tolerance 2 6.4 Visible corona voltage 3 Level 3 6.5 creepage distance 7 Test Requirements 3 7.1 general requirements 3 7.2 Visible corona voltage test (type test) 3 Other 4 8 Appendix A (normative) of the sleeve when the ambient temperature is above or below 40 ℃ use 17 A.1 maximum ambient temperature of 40 ℃ ~ 60 ℃ 17 A.2 maximum ambient temperature is below 40 ℃ 17 Annex B (informative) wall bushing installation diagram 18 Annex C (informative) round copper rod guide wall bushing size and features 19 C.1 dimensional characteristics 19 C.2 sleeve Model Description 20 C.3 Installation 20 Annex D (informative) round copper rod guide wall bushing installation diagram 21

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 12944.2-1991 "high voltage ceramic wall bushings - Dimensions and characteristics", and GB/T 12944.2-1991 phase Ratio, in addition to editorial changes outside the main technical changes are as follows. --- Increased "operating conditions, ordering information and identification" section (see Chapter 4); --- Increased "technical requirements" chapter, in addition to the technical conditions GB/T 4109-2008 regulations, the increase in the visible corona voltages and tolerances And other requirements (see Chapter 6); --- Added "Test Requirements" chapter, in addition to the test requirements GB/T 4109-2008 the provisions in the type test increased visibility electricity Halo voltage test requirements, and provides a number of samples for type test (see Chapter 7); --- Press highest voltage for equipment GB 311.1 is revised draft of the provisions of the revised standard rated voltage value (see Tables 2 and 3); --- According to a unified concept creepage distance (USCD) dressing each grade bushing creepage distance, and adds some creepage distance rating And rated current of the product (see Tables 2 and 3); --- Cancel the original structure 8 (see GB/T 12944.2-1991 Figure 8); --- Increased when the maximum ambient temperature is above or below 40 ℃ sleeve use provisions (see Appendix A). Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents. The standard proposed by China Electrical Equipment Industrial Association. This standard by the National Standardization Technical Committee Insulators (SAC/TC80) centralized. This standard was drafted. Suzhou Electric Porcelain Co., Ltd., Xi'an High Voltage Apparatus Research Institute Co., Ltd., the National Insulator arrester Quality Supervision, Inspection Center, State Grid Electric Power Research Institute, Nanjing Electric (Group) Co., Ltd. Tangshan high-voltage porcelain, China Electric Power Division Graduate School. Drafters of this standard. Miss Chau, Yao Junrui, Daiyu Jun, Zhao Hui, Wei Peng, Zhang Rui, Gurui Yun, Yang Ming, TRANSACTIONS OF THE. This standard replaces the standards previously issued as follows. --- GB/T 12944.2-1991; --- GB 1247-1977, GB 770-1988, GB 771-1988. High voltage ceramic wall bushings

1 Scope

This standard specifies the high-voltage ceramic wall bushings - the technical requirements, testing requirements, structure type, size and characteristics. This standard applies to nominal voltage 6kV ~ 35kV, frequency 15Hz ~ 60Hz three-phase AC system in the power station and substation power distribution Within the means used indoor, outdoor - indoor wall bushings (hereinafter referred to as the casing). Sleeve for horizontal installation, the indoor casing can be installed vertically. This standard does not apply under conditions sufficient to reduce the performance of the sleeve and the sleeve at the casing surface condensation client situations.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 197-2003 common thread tolerance GB 311.1 insulation with high-voltage power transmission equipment GB/T 1804-2000 General tolerances Tolerances for linear and angular dimensions without individual tolerance GB/T 2900.8-2009 Electrical insulators term GB/T 4109-2008 AC voltage greater than 1000V insulating sleeve GB/T 5273-1985 transformers, high-voltage electrical terminals and casing GB/T 5585.1-2005 electrician with copper, aluminum and its alloy bus - Part 1. Copper and copper alloy bus GB/T 5585.2-2005 electrician with copper, aluminum and its alloy bus - Part 2. Aluminium and aluminum busbars GB/T 23752-2009 rated voltages greater than 1000V electrical equipment with pressurized and non-pressurized hollow porcelain and glass insulators JB/T 4307-2004 insulators fitted with rubber cement glue

3 Terms and Definitions

Terms and definitions GB/T 2900.8-2009 and GB/T 4109-2008 defined apply to this document. 4 operating conditions, ordering information and identification Operating conditions and ordering information should be consistent with the provisions of GB/T 4109-2008 in Chapter 5 and 6.1, the logo should comply with 10.3. The ambient temperature exceeds or falls below 40 ℃ when the cannula used in Appendix A.

5 structure type

5.1 The basic structure of the sleeve type The basic structure of the sleeve type shown in Figure 1 to 9. 5.2 sleeve models Model a) with conductor ceramic wall bushings are shown below. ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 12944-2011_English be delivered?

Answer: Upon your order, we will start to translate GB/T 12944-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 12944-2011_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 12944-2011_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 12944-2011?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 12944-2011 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.