|
US$1554.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 17215.9311-2017: Electricity metering equipment -- Dependability -- Part 311: Accelerated reliability testing -- Elevated temperature and humidity
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 17215.9311-2017 | English | 1554 |
Add to Cart
|
6 days [Need to translate]
|
Electricity metering equipment -- Dependability -- Part 311: Accelerated reliability testing -- Elevated temperature and humidity
| Valid |
GB/T 17215.9311-2017
|
PDF similar to GB/T 17215.9311-2017
Basic data | Standard ID | GB/T 17215.9311-2017 (GB/T17215.9311-2017) | | Description (Translated English) | Electricity metering equipment -- Dependability -- Part 311: Accelerated reliability testing -- Elevated temperature and humidity | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N22 | | Classification of International Standard | 17.220.20 | | Word Count Estimation | 82,861 | | Date of Issue | 2017-12-29 | | Date of Implementation | 2018-07-01 | | 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 | GB/T 17215.9311-2017: Electricity metering equipment -- Dependability -- Part 311: Accelerated reliability testing -- Elevated temperature and humidity
---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.
Electricity metering equipment-Dependability-Part 311. Accelerated reliability testing-Elevated temperature and humidity
ICS 17.220.20
N22
National Standards of People's Republic of China
Electrical measurement equipment credibility
Part 311. Accelerated Reliability Tests for Temperature and Humidity
Part 311.Accelerated reliability test-Elevatedtemperatureandhumidity
(IEC 62059-31-1.2008, Electricitymeteringequipment-
Dependability-Part 31-1.Accelerated reliability test-
Published on.2017-12-29
2018-07-01 Implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration released
Directory
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Symbols and Abbreviations 5
5 Description of quantitative accelerated life testing 7
5.1 Preface 7
5.2 Lifetime Distribution 7
5.3 Life-stress model 7
6 Weibull distribution 8
6.1 Introduction 8
6.2 Graphical representation 8
6.3 Calculation of Distribution Parameters 11
6.3.1 Input data used 11
6.3.2 Pre-failure time series 11
6.3.3 Reliability/unreliability estimation 12
6.3.4 Parameter Calculation 13
6.3.4.1 Overview 13
6.3.4.2 Calculation of parameters A, B and correlation coefficient 13
6.3.4.3 Calculation of Weibull Distribution Parameters 14
7 Life-stress model 16
7.1 Overview 16
7.2 Linear Equation of Acceleration Factor 17
7.3 Calculation of parameters n and Ea 17
8 Quantitative Accelerated Life Test 18
8.1 Sample Selection 18
8.2 Steps to Estimate Product Lifetime Characteristics 18
8.3 Procedure for Terminating the Maximum Stress Level Test 19
8.4 Procedure for collecting pre-failure time data and repairing instruments 19
9 Definition of normal use conditions 19
9.1 Temperature and Humidity Conditions 19
9.1.1 Outdoor Installations 19
9.1.2 indoor installation device 21
9.2 Temperature Corrections Due to Voltage and Current Changes 21
9.2.1 Definition of normal use voltage and current profile 22
9.2.2 Measurement of the internal temperature of the instrument at each current and voltage 22
9.2.3 Calculation of the average internal temperature of the instrument 22
9.3 Other conditions 24
10 Classification of root causes of failure 24
11 Expression of results 24
11.1 Required Information 24
11.2 Example 24
12 Special Case 24
12.1 Simplified Case 24
12.1.1 Small Changes in Product Design 25
12.1.2 Batch Verification of Products 25
12.2 Cases that Need Additional Information 25
12.2.1 Significant Changes in β Parameters from the Maximum Stress Level to the Medium or Low Stress Level 25
12.2.2 Differences in Failure Modes at Different Stress Levels 25
Appendix A (Informative) Basic Statistical Background 26
Appendix B (Informative) Characteristics of Weibull Distribution 28
Appendix C (Informative Appendix, see IEC 62308) Life-Stress Model 31
Appendix D (Normative) Rank Table 33
Appendix E (Normative) Value of Γ(n) 37
Appendix F (Normative) Calculation of Minimum Duration at Maximum Stress Level 38
Appendix G (Informative Appendix) Example 42
Foreword
GB/T 17215 consists of several parts, of which GB/T 17215.9 "The credibility of electrical measuring equipment" consists of the following components.
--- Part 11. General Concepts (GB/T 17215.911);
---Part 21. Collection of on-site instrument credibility data (GB/T 17215.921);
--- Part 311. Accelerated reliability test for temperature and humidity (GB/T 17215.9311);
--- Part 321. Durability accelerated test (GB/T 17215.9321);
--- Part 41. Reliability Prediction (GB/T 17215.941);
--- Part 51. Software Trust (GB/T 17215.951).
This part is part 311 of GB/T 17215.9.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
This section uses the translation method identical to the use of IEC /T R62059-31-1.2008 "Electrical Measurement Equipment Credibility Part 31-1. Temperature
And humidity accelerated reliability test."
This section made the following editorial changes.
--- Change the standard name to "Electrical Measurement Equipment Reliability Part 311. Accelerated Reliability Test for Temperature and Humidity".
Please note that some of the contents of this document may involve patents. The issuing agency of this document does not assume responsibility for identifying these patents.
This part is proposed by China Machinery Industry Federation.
This part is under the jurisdiction of the National Electrical Instrumentation Standardization Technical Committee (SAC/TC104).
This section was drafted by. Harbin Institute of Electrical Instrumentation, State Grid Chongqing Power Company Electric Power Research Institute, Holley Instrument Group
Co., Ltd., Jiangsu Linyang Electronics Co., Ltd., Hangzhou Baifu Electronic Technology Co., Ltd., Wasion Group Co., Ltd., National Electrician
Instrumentation Quality Supervision and Inspection Center, Xi'an Yuqi Electronic Co., Ltd., Zhengtai Instrument and Meter Co., Ltd., and Ningbo Samsung Electric Co., Ltd.
Co., Ltd., Jiangsu Kaouwan Electronics Co., Ltd., Shenzhen Kelu Electronics Technology Co., Ltd., Shenzhen Aerospace Tairui Jie Electronics Co., Ltd.
Limited Company, Harbin Huixin Instruments & Meters Co., Ltd., Shanghai Infinity Electronic Technology Co., Ltd., Heilongjiang Province Electrician Instruments & Meters Co., Ltd.
Cheng Technology Research Center Co., Ltd., Shenzhen Jiangji Industrial Co., Ltd., Jiangsu Provincial Institute of Metrology, Yunnan Electric Power Test Institute
Group) Electric Power Research Institute, Hangzhou Xili Electric Energy Meter Manufacturing Co., Ltd.
The main drafters of this section. Zheng Ke, Zhang Lihua, Li Wanhong, Xue Dejin, Zhu De, Chen Bo, Zhang Clarification, Cao Min, Xu Maolin, Chen Wenxin,
Zheng Xiaoping, Dai Guangdong, Zhou Zhongxiang, Chen Hongbo, Yu Gaobo, Sheng Quangen, Zhao Yumei, Li Lin, Zhu Kao, Xu Renheng, Ou Xiyang, Sun Shijie, Zhou Xiaolei.
Introduction
The design of electrical measuring equipment requires high reliability and long service life under normal operating conditions and can be performed unattended
Work continuously without interruption. Therefore, in order to effectively manage measurement equipment, appropriate methods are used to predict and estimate different types of lifespans.
The levy becomes very important.
GB/T 17215.941 provides a method for predicting the failure rate (assuming a constant) of a metering device based on the component stress method.
This section provides another way to estimate life characteristics by accelerating reliability tests.
In practice, it is not possible to obtain data on the life characteristics by conducting tests under normal operating conditions. Therefore, it should be used
Speed reliability test method.
In accelerated reliability testing, samples obtained from a defined population run outside their normal operating conditions by providing
Stress is used to shorten the time before failure, but new failure mechanisms cannot be introduced.
The estimation is performed by the following method. by recording and analyzing the product failure under accelerated test conditions, the loss under test conditions is established.
The effect distribution, and the life-stress model, predicts the failure distribution under accelerated test conditions to normal use conditions.
This method provides quantitative results and can be applied to products from different suppliers or the same supplier but different batches
Comparison of life characteristics above.
Electrical measurement equipment credibility
Part 311. Accelerated Reliability Tests for Temperature and Humidity
1 Scope
This part of GB/T 17215 provides a method for estimating product life characteristics by accelerating reliability tests.
Acceleration is achieved through increased constant temperature and humidity stress. This method also takes into account the effects of voltage and current changes. others
Factors like temperature changes, vibrations, dust, voltage dips and short interruptions, electrostatic discharges, fast transient bursts, surges, etc., although they can
Can affect the life characteristics of the instrument, but did not take into account.
This section applies to all types of electrical energy metering and load control devices in the SAC/TC104 range. This section gives
The method can be used to estimate (with a certain degree of confidence) the lifetime characteristics of such equipment before mass production and in batch production. This method is also
Can be used to compare different design options.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 5080.1-2012 reliability test part 1. test conditions and principles of statistical inspection (IEC 60300-3-5.2001,
IDT)
GB/T 17215.911-2011 Reliability of electrical measurement equipment Part 11. General concepts (IEC 62059-11.2002, IDT)
GB/T 17215.921-2012 Reliability of electrical measurement equipment Part 21. Collection of on-site credibility data (IEC 62059-
21.2002, IDT)
GB/T 17215.941-2012 Reliability of electrical measurement equipment Part 41. Reliability prediction (IEC 62059-41.2006,
IDT)
IEC 60050-191.1990 International Electrotechnical Vocabulary, Chapter 191. Credibility and Quality of Service (International Electrotechnical
Vocabulary (IEV)-Chapter 191. Dependability and quality of service)
IEC 61649.2008 Goodness-of-fit tests of goodness-of-fit tests, confidence intervals, and confidence limits for Weibull distribution data
confidenceintervalsandlowerconfidencelimitsforWeibuldistributeddata)
IEC 61703.2001 Mathematical expressions of the terms reliability, availability, maintainability and maintenance guarantee (Mathematical expressions
Forreliability,availability,maintainabilityandmaintenancesupportterms)
IEC 62308Ed.1.0.2006 Equipment reliability reliability assessment method (Equipment reliability-Reliabilityas-
Sessmentmethods)
3 Terms and Definitions
The terms and definitions defined in GB/T 17215.911 apply to this document.
3.1
Accelerated life test acceleratedlifetest
In order to shorten the duration of time required to observe the product's stress response or to amplify the stress response for a given time, the applied stress level is selected.
Take a test that exceeds the stress level specified under the baseline conditions.
Note. For the test to be effective, the accelerated test should not change the basic failure mode and failure mechanism or their relative primary and secondary relationship.
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 17215.9311-2017_English be delivered?Answer: Upon your order, we will start to translate GB/T 17215.9311-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 17215.9311-2017_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 17215.9311-2017_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+ countriesQuestion 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 [email protected]. 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.
|