GB/T 32514.3-2016 English PDFUS$354.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 32514.3-2016: Resistance welding -- Welding current measurement for resistance welding -- Part 3: Current sensing coil Status: Valid
Basic dataStandard ID: GB/T 32514.3-2016 (GB/T32514.3-2016)Description (Translated English): Resistance welding -- Welding current measurement for resistance welding -- Part 3: Current sensing coil Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J64 Classification of International Standard: 25.160.30 Word Count Estimation: 18,119 Date of Issue: 2016-02-24 Date of Implementation: 2016-09-01 Quoted Standard: ISO 669; ISO 17657-4 Adopted Standard: ISO 17657-3-2005, IDT Regulation (derived from): National Standard Announcement No 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 current sensing coils for toroidal sensors for the measurement of resistance welding current for welding current meters or welding current measurement systems and is suitable for single-phase alternating current (50 Hz or 60 Hz) and direct current. GB/T 32514.3-2016: Resistance welding -- Welding current measurement for resistance welding -- Part 3: Current sensing coil---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. Resistance welding - welding current measurement for resistance welding - Part 3. Current sensing coil ICS 25.160.30 J64 National Standards of People's Republic of China Measurement of welding current of resistance welding Part 3. current sensing coils Part 3. Currentsensingcoil (ISO 17657-3..2005, IDT) 2016-02-24 released 2016-09-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released Directory Preface I 1 Scope 1 2 normative reference document 1 3 Terms and definitions 1 4 Environmental conditions 2 Classification and identification of current - sensing coils 5.1 Level of current sensing coil 2 5.2 Standard value of conversion factor 2 5.3 Identification 2 6 requirements for current sensing coils 2 6.1 Current sensing coil and connecting wire 2 6.2 conversion factor 3 6.3 Accuracy of measurement 3 6.4 Mechanical strength 3 6.5 positioning error 3 6.6 Impact of Ambient Temperature 3 6.7 Thermal properties of covering materials 3 6.8 Test 3 7 Test procedure 4 7.1 conversion factor 4 7.2 Measurement accuracy 5 7.3 Mechanical tests 5 7.4 Location deviation test 6 7.5 Thermal performance test 7 7.6 Contact with heat resistance test 7 8 mark 7 Appendix A (normative) Design of current sensing coils Appendix B (normative) Control parameters for conversion factors 10 Appendix C (informative) Types of current sensing coils and recommended specifications Appendix D (informative) Frequency response of current sensing coils 14 ForewordGB/T 32514 "resistance welding welding current measurement" is divided into five parts. - Part 1. Measurement guidelines; Part 2. welding current measuring instrument with current sensing coil; Part 3. Current sensing coils; - Part 4. Calibration system; Part 5. Confirmation of welding current measurement systems. This part is Part 3 of GB/T 32514. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part uses the translation method equivalent to ISO 17657-3..2005 "Resistance welding welding current measurement Part 3. Current sensing Coil ". And the normative reference in this standard international documents are consistent with the relationship between China's documents are as follows. GB/T 8366-2004 Mechanical and electrical requirements for solder resist welding machines (ISO 669..2000, MOD) Measurement of welding current for resistance welding - Part 4. Calibration system (ISO 17657-4..2005, IDT) This part is made by China Electrical Equipment Industry Association. This part of the National Welding Technology Standardization Technical Committee (SAC/TC70) centralized. This part of the drafting unit. Chengdu tripartite Electric Co., Ltd., Guangzhou Songxing Electric Co., Ltd., Shenzhen Peng Yu Wei Technology Co., Ltd. Jin seven high-tech Co., Ltd., Zhejiang Ken was Electrical Co., Ltd., Tian Tian Miaji Trade (Shanghai) Co., Ltd. The main drafters of this part. Chen Kai, Liu Guoying, Liu Xingwei, Huang Hong, Liu Yankuo, Zhu Xuanhui, Ni Yufeng. Measurement of welding current of resistance welding Part 3. current sensing coils1 ScopeThis part of GB/T 32514 specifies the resistance current used for welding current measuring instruments or welding current measurement systems. The current sensor coil of the ring sensor is suitable for single phase AC (50Hz or 60Hz) and DC current.2 normative reference documentsThe following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. ISO 669 resistance welding resistance machine mechanical and electrical requirements (Resistancewelding-Resistanceweldingequipment -Mechanicalandelectricalrequirements ISO 17657-4 Resistance welding welding current measurement - Part 4. Calibration system (Resistancewelding-Weldingcur- rentmeasurementforresistancewelding-Part 4. Calibrationsystem)3 terms and definitionsISO 669 and the following terms and definitions apply to this document. 3.1 Current induced coil (toroidal coil) currentsensingcoil (toroidalcoil) A multi-roll coil in which the wire is wound on a non-magnetic skeleton with a constant cross-section for detecting the magnetic flux generated by the current. Note. The coil is wound around a skeleton and the measured current will pass through the skeleton. 3.2 Reference current sensing coil referencecurrentsensingcoil Used for calibration, with a higher current accuracy than the high accuracy accuracy specified in this section. 3.3 Conversion coefficient conversioncoefficient The ratio of the output voltage of the current sensing coil to the welding current. The unit is millivolts per kilo (mV/kA). Note. This value is proportional to the frequency of the current measured and uses 50Hz full-wave current as the test current. 3.4 Frequency response frequencyresponse The influence of the frequency characteristics of the test current on the conversion factor. 3.5 Accuracy accuracy The dispersion and deviation of the conversion factor. The output load of the current sensing coil has a large effect on the conversion coefficient value. If the output load and/or the integrator input impedance change , The conversion factor may still be biased, even if both devices have been calibrated at high accuracy levels, respectively. ...... |
