GB/T 25312-2010 English PDFUS$439.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 25312-2010: The standardization for the evaluation of welder exposure to electromagnetic field of welding equipment Status: Valid
Basic dataStandard ID: GB/T 25312-2010 (GB/T25312-2010)Description (Translated English): The standardization for the evaluation of welder exposure to electromagnetic field of welding equipment Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J64 Classification of International Standard: 25.160.30 Word Count Estimation: 19,161 Date of Issue: 2010-11-10 Date of Implementation: 2011-05-01 Regulation (derived from): National Standard Approval Announcement 2010 No.8 (Total No.163) 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 fields of welding equipment and assistive devices under normal welding conditions have on -site operator impact assessment. This standard applies to welding equipment and assistive devices. This standard does not involve the assessment of electromagnetic compatibility welding equipment products. GB/T 25312-2010: The standardization for the evaluation of welder exposure to electromagnetic field of welding equipment---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. The standardization for the evaluation of welder exposure to electromagnetic field of welding equipment ICS 25.160.30 J64 National Standards of People's Republic of China Electromagnetic welding equipment operator Evaluation criteria affect the degree of Issued on. 2010-11-10 2011-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Table of ContentsPreface Ⅰ 1 Scope 1 2 Terms and definitions 1 3 2 exposure limits 3.1 Exposure Limits 2 3.2 The basic limit of 3 3.3 Exposure electric field of 3 3.4 Comprehensive Evaluation Method 3 4 Test and Evaluation Program 3 4.1 welding environment electromagnetic field measurements 3 4.2 electromagnetic radiation field monitoring quality assurance 4 4.3 Test Equipment 4 4.4 welding electromagnetic exposure assessment program 4 Appendix A (normative) Welding worker electromagnetic exposure limit values and assessment limits 6 Annex B (informative) General information on welding EMF protection 9 Annex C (informative) current density and internal electric field calculation method of the human body in a magnetic field induced --- human body Two-dimensional model 10ForewordThe standard reference to the World Health Organization recommended by the International Commission on Non-Ionizing Radiation Protection (ICNIRP) "varying electric, magnetic and electrical Limitations Magnetic fields (300GHz or less) exposure guidelines, 1998, "Institute of Electrical and Electronics Engineers/International Committee on Electromagnetic Safety (IEEE / ICES) "on human exposure to electromagnetic fields 0 ~ 3kHz safety level (IEEEC95.6-2002)" and existing domestic standards, and Combined with China's national conditions, the implementation of the method proposed in the welding environment operator electromagnetic field exposure limits of detection and evaluation. Appendix A of this standard is a normative appendix, Appendix B, Appendix C is informative appendix. The standard proposed by China Electrical Equipment Industrial Association. This standard by the National Standardization Technical Committee Welder (SAC/TC70) centralized. This standard was drafted. Beijing University of Technology, Tangshan Matsushita Industrial Equipment Co., Ltd., Shenzhen Ruiling Industrial Co., Ltd., Chengdu Bear Valley Electric Industrial Co., Ltd., Chengdu tripartite Electric Co., Ltd., Shenzhen Christie Technology Development Co., Ltd., Chengdu Electric and Inspection. The main drafters of this standard. Song Yonglun, Chen Jie, Qiu light, Xiaojie Guang, Yinxian Hua, Pan Lei, Yang Qingxuan, Xiao wave, branched Nan Zhang. Electromagnetic welding equipment operator Evaluation criteria affect the degree of1 ScopeThis standard specifies electromagnetic welding equipment and auxiliary equipment under normal welding conditions have on-site operators affected Evaluation. This standard applies to the welding equipment and auxiliary devices. This standard does not involve the assessment of welding equipment product electromagnetic compatibility. Note 1. The welding equipment covered by this standard include electric arc welding equipment, welding equipment and its peripheral auxiliary equipment, including welding power source, wire feeder, water Cold box, output cable, welding torch, arc and arc stability and so on. Note 2. This standard does not include the detection and assessment of all known welding equipment electromagnetic environment.2 Terms and definitionsThe following terms and definitions apply to this standard. 2.1 Basic limits basiclimit Direct basis for determining the health effects and health effects of uncertainty has taken the precautionary principle and the development of exposure in time-varying electric field, Magnetic and electromagnetic fields of the physical limits. In this standard, according to the frequency of the field, the basic physical limits of current density (J), specific absorption Rate (SAR), power density (S). The basic physical limits are often difficult to be measured directly. 2.2 Derived limit referencelimit For the assessment of actual exposure under conditions substantially limits the possibility of being exceeded. Derived limit represents electric, magnetic, electromagnetic field exposure and a The maximum coupling state body, which substantially limits by using the mathematical model and the experimental results at a particular frequency will be deduced from the Limit of electric field strength (E), magnetic field intensity (H), the magnetic induction (B), pulsed field than energy absorption (SA), the power density and other physical scale S Shown. Because of its ease of direct measurement, typically used to measure the actual value comparison and safety assessment. When the actual measured value is lower than the export limit Can guarantee the basic limit is not exceeded; and when the measured value exceeds the export limit does not mean that it must go beyond the basic restrictions, the need for basic limit Value for further detailed assessment. Thereby providing the most effective protection. 2.3 Systemic exposure to whole-bodyexposure Body as a whole in the electromagnetic field exposure. 2.4 Local exposure partialexposure Local body surface in electromagnetic field exposure. 2.5 Field electricfield Part of the electric field strength and power flux density characterization of electromagnetic fields. 2.6 Field magneticfield Component of the magnetic field strength and the magnetic flux density of the electromagnetic field characterization. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 25312-2010_English be delivered?Answer: Upon your order, we will start to translate GB/T 25312-2010_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 25312-2010_English with my colleagues?Answer: Yes. 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