GB/T 29310-2012 English PDF

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GB/T 29310-2012: Guide for the statistical analysis of electrical insulation breakdown data
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 29310-2012	794	Add to Cart	3 days	Guide for the statistical analysis of electrical insulation breakdown data	Valid

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Basic data

Standard ID: GB/T 29310-2012 (GB/T29310-2012)
Description (Translated English): Guide for the statistical analysis of electrical insulation breakdown data
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K15
Classification of International Standard: 29.035.01
Word Count Estimation: 40,464
Quoted Standard: ASTM D149-1997A (2004); BS 2918-2; IEC 60243-1; IEC 60243-2; IEC 60243-3
Adopted Standard: IEC 62539-2007, IDT
Regulation (derived from): National Standards Bulletin No. 41 of 2012
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 statistical analysis methods to analyze data.

GB/T 29310-2012: Guide for the statistical analysis of electrical insulation breakdown data

---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.
Guide for the statistical analysis of electrical insulation breakdown data ICS 29.035.01 K15 National Standards of People's Republic of China Electrical insulation breakdown statistical analysis Guide (IEC 62539.2007, IDT) Issued on. 2012-12-31 2013-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 Step 13 the data required for the analysis Breakdown 3.1 Data Collection 1 3.1.1 Common testing techniques 1 3.1.2 Additional data 2 3.1.3 Data Requirements 2 3.1.4 Data collection process practical precautions 2 3.2 Characterization data using probability function 2 3.2.1 Types of failure distribution 2 3.2.2 Distribution of full test 3 3.2.3 parameter estimates and confidence intervals 3 3.3 Assuming the experiment 3 4 breakdown probability distribution of the data 3 4.1 Weibul Distribution 3 4.2 Gumbel distribution 4 4.3 pairs lognormal 4 4.4 Mixture Distribution 5 4.5 Other terms 5 Adequacy test 55 Distribution 5.1 Weibul probability data 5 5.1.1 estimate the complete data plotted point position 5 5.1.2 Estimation painted censored data points separate positions 5 5.1.3 Estimation progressively censored data plotting positions 6 5.2 pairs of three-parameter distributions using probability plots Weibul 6 The shape of the distribution curve 6 5.3 Weibul probability plot 5.4 Distribution of a simple test Weibul technical adequacy 6 6 Weibul distribution parameter estimation graphics 7 Calculation Method 7 Weibul parameter estimation 7 7.1 large database 7 7.2 smaller databases 8 8 Weibul estimated 8 percent 9 Weibul confidence interval estimation function 9 Graphics 9.1 complete with censored data 9 9.1.1 shape parameter β confidence interval 9 9.1.2 The location parameter α confidence interval of 9 9.1.3 Weibul 10 percent confidence interval 9.2 Confidence limits of 10 draw 10 parameter estimates and their confidence limit for normal function of the number 10 10.1 pairs lognormal distribution parameter estimation 10 10.2 lognormal distribution parameter estimation confidence interval 10 11 11 Comparative Test 11.1 Comparative simple way Weibul percentile 11 12 with sample data to estimate the system parameters 11 Weibul Appendix A (informative) Least Squares Regression 12 Annex B (informative) References 34

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard uses the translation method identical with IEC 62539.2007 "Electrical insulation breakdown statistical analysis guidelines." Consistency correspondence with this standard Normative documents of the following documents. --- GB/T 1408.1-2006 electrical insulating materials strength test methods - Part 1. Tests at power frequencies (IEC 60243-1. 1998, IDT) --- GB/T 1408.2-2006 electrical insulating materials strength test methods - Part 2. Additional tests using direct voltage Requirements (IEC 60243-2.2001, IDT) --- GB/T 1408.3-2007 electrical insulating materials strength test methods - Part 3. 1.2/50μs impulse tests Additional requirements (IEC 60243-3.2001, IDT) The standard proposed by China Electrical Equipment Industrial Association. This standard by the National Electrical insulation materials and insulation systems assessment Standardization Technical Committee (SAC/TC301) centralized. This standard was drafted. Harbin Polytechnic University, Shandong Qilu Motor Manufacturing Co., Ltd., Shunde quality and technical supervision standards And coding, Shanghai Electrical Apparatus Research Institute (Group) Co., Ltd., Beijing Electrical Machinery Industry Technology Research Institute of Economy, Cooper Power System National R & D center. The main drafters of this standard. Liu column, Weng Ling, Zhao Chao, Liu Yali, Ouyang Dan SCENCE Zhang Shengde, Rui, Wei Jingsheng, Shi Hui, Yang, Wang Kun.

Introduction

This standard is described with examples statistical method used to analyze the breakdown of time to get from the electrical testing of solid insulating material and The breakdown voltage of the data, the purpose of characterizing the system compared with other insulation system of relations, and the forecast is for a given time or voltage breakdown The probability. Electrical insulation breakdown statistical analysis Guide

1 Scope

Electrical insulation systems and materials may be constant stress and step stress test test. In constant stress test, the test data for the promise Multi-sample breakdown time; in step stress test, the test data for the breakdown voltage of the sample. In both cases, for each test Samples will differ from experimental data obtained, but under the given experimental conditions, the experimental data obtained show a certain statistical distribution. this Criteria to analyze these data by statistical analysis method instance. The purpose of this standard is to define the statistical methods used to analyze the breakdown of time to get from the electrical testing of solid insulating material and strike Breakdown voltage, to characterize the system compared with other insulation system of relations, and predicted probability at a given time and voltage breakdown. The method used to analyze the complete data and censored data, censored data, not all samples are breakdown. This standard includes the following Methods, and there are examples of. determining whether the data is suitable for fitting distribution; optimal distribution parameter estimation method based on graphics and computer; computer-based Estimating the statistical confidence interval; and a method of comparative databases and case studies. These can be presented as fully Weibul distribution methods but also show some other analysis methods such as Gumbel distribution and normal distribution. This standard does not involve determining short-withstand voltage or insulation system working voltage. Mathematical methods in this standard can not be directly used Assess the life of the device.

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. Dielectric ASTMD149-97a (2004) in the case of using the frequency of solid electrical insulating materials and dielectric breakdown voltage strength standard Standard Test Method (Standardtestmethodfordielectricbreakdownvoltageanddielectricstrengthofsolid electricalinsulatingmaterialsatcommercialpowerfrequencies) Test methods BS2918-2 electric strength of solid insulating materials (Methodsoftestforelectricstrengthofsolid insulatingmaterials) IEC 60243 (all parts), electrical insulating materials strength testing method (Electricalstrengthofinsulatingmaterials- Testmethods) Data analysis step 3 Breakdown required 3.1 Data Collection 3.1.1 Common testing techniques There are two common electrical insulation breakdown test. constant stress and step stress test test. In both tests, a plurality of identical test Subjected to the same kind of electrical breakdown test. In constant stress test, the breakdown voltage is applied to the same time in each sample was measured. breakdown Time distribution range is very wide, the longest breakdown time may be twice the shortest time. In step stress test, gradually increasing the voltage applied To each sample, typically measured breakdown voltage. Voltage may continually increase or a slight increase over time. In accordance with other standards, e.g. Impact test may also be used. Breakdown voltage distribution is small, sometimes only the highest voltage of 2% larger than the minimum voltage. Different standards [such as BS2918-2 and IEC 60243 (all parts)] lists the constant stress and step stress test test program. This standard is intended to provide a more rigorous way to deal with the breakdown of data methods. ......

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