GB/T 4796-2017 English PDFUS$519.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 4796-2017: Classification of environmental conditions -- Environmental parameters and their severities Status: Valid GB/T 4796: Historical versions
Basic dataStandard ID: GB/T 4796-2017 (GB/T4796-2017)Description (Translated English): Classification of environmental conditions -- Environmental parameters and their severities Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: A21 Classification of International Standard: 19.040 Word Count Estimation: 26,247 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 4796-2017: Classification of environmental conditions -- Environmental parameters and their severities---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. Classification of environmental conditions - Environmental parameters and their severities ICS 19.040 A21 National Standards of People's Republic of China Replacing GB/T 4796-2008 Environmental conditions classification Environmental parameters and their severity Classification of environmentalconditions- (IEC 60721-1..2002, Classification of environmental conditions - Part 1. Environmental parameters and theirseverities, IDT) 2017-12-29 Posted 2018-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 environmental factors and parameters 2 4.1 Overview 2 4.2 List of individual environmental factors and their severity 2 4.3 Combination of environmental factors 18 4.4 The order of environmental factors 18 Appendix NA (Informative) Metals and Polymers Environmental Corrosion and Aging Severity 19 Appendix NB (informative) Severity classification based on measured values of characteristic changes of standard samples 20 References 21 ForewordThis standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 4796-2008 "Environmental classification of electrical and electronic products Part 1. Environmental parameters and the severity." This standard compared with GB/T 4796-2008, the main changes are as follows. --- The standard name changed to "environmental conditions classification of environmental parameters and the severity of"; --- Adjust the format and content of Form 1 --- Increase the information appendix NA "Metal and polymer materials, environmental corrosion and aging severity grading"; --- Increase the information appendix NB "According to the standard sample changes in the measured value of the severity of grading"; --- Increase the reference. This standard uses the translation method identical with IEC 60721-1..2002 "Environmental conditions - Part 1. Environmental parameters and classification." This standard made the following editorial changes. --- Modify the standard name; --- Added information appendix NA "metal and polymer materials, environmental corrosion and aging severity grading"; --- Increasing the informative appendix NB "according to the standard sample changes in the characteristics of the severity of grading." This standard by the National Electrical and Electronic Environmental and Environmental Testing Standardization Technical Committee (SAC/TC8) and focal point. This standard was drafted. China Electric Apparatus Research Institute Co., Ltd., Sichuan University, Fujian Province to new offshore wind power research and development limited the company. The main drafters of this standard. Wang Jun, Liu Xin, Li Guangxian, Huang Kaiyun, Tao You quarter, Huang Yajiang, Tu Chuanqun. This standard replaces the standards previously issued as follows. --- GB/T 4796-1984, GB/T 4796-2001, GB/T 4796-2008. Environmental conditions classification Environmental parameters and their severity1 ScopeThis standard lists the electrical and electronic products in the transport, storage, installation and use of environmental conditions encountered in the parameters and the severity.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 2423.5-1995 Environmental testing for electric and electronic products Part 2. Test methods Test Ea and guidelines. Impact (idt IEC 60068-2-27. 1987) GB/T 4798.6-2012 Classification of environmental conditions Environmental parameter group classification and its severity classification Marine (IEC 60721-3-6. 1987, IDT) IEC 60079-0. 1983 Explosive atmospheres - Part 0. Equipment requirements (Electricalapparatusforexplosive gasatmospheres-Part 0. Generalrequirements) IEC 60721-2-2. 1988 Environmental classification - Part 2. Natural conditions Precipitation and wind (Classificationofenvi- ronmentalconditions-Part 2. Environmentalconditionsappearinginnature-Precipitationandwind) ISO 2041. 1975 Vibration and Shock Vocabulary (Vibrationandshock-Vocabulary)3 Terms and definitionsThe following terms and definitions apply to this document. 3.1 Environmental conditions environmentalcondition The external physical, chemical and biological conditions that the product is exposed to at a given time. Note. Environmental conditions generally include the natural environment and the product itself or the external environmental conditions. 3.2 Environmental factor environmentalfactor A physical, chemical or biological influence (such as heat and vibration) of an environmental condition alone or in combination. 3.3 Environmental parameters environmentalparameter Describe one or more physical, chemical or biological characteristics of the environmental factor (eg temperature, acceleration). For example. Environmental factors Vibrations are characterized by parameters such as vibration type (sinusoidal, random), acceleration and frequency. 3.4 Severity of environmental parameters severityofenvironmentalparameter Characterize the magnitude of each environmental parameter. For example. Severity of sinusoidal vibration Values are characterized by acceleration (m/s2) and frequency (Hz). ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 4796-2017_English be delivered?Answer: Upon your order, we will start to translate GB/T 4796-2017_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 4796-2017_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 4796-2017_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. 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