HOME   Cart(0)   Quotation   About-Us Tax PDFs Standard-List Powered by Google www.ChineseStandard.net Database: 189759 (27 Oct 2024)

GB 28736-2012 (GB 28736-2019 Newer Version) PDF English


GB 28736-2012 (GB28736-2012) PDF English
Standard IDContents [version]USDSTEP2[PDF] delivered inName of Chinese StandardStatus
GB 28736-2019English130 Add to Cart 0-9 seconds. Auto-delivery. Minimum allowable values of energy efficiency and energy efficiency grades for welding machines Valid
GB 28736-2012English90 Add to Cart 0-9 seconds. Auto-delivery. Minimum allowable values of energy efficiency and energy efficiency grades for arc welding machines Obsolete
Newer version: GB 28736-2019     Standards related to (historical): GB 28736-2019

GB 28736-2012: PDF in English

GB/T 28736-2012 GB ICS 27.010 F 01 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA Minimum allowable values of energy efficiency and energy efficiency grades for arc welding machines ISSUED ON. NOVEMBER 05, 2011 IMPLEMENTED ON. JUNE 01, 2013 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People’s Republic of China; Standardization Administration of the People’s Republic of China. Table of Contents Foreword ... 3  1 Scope ... 4  2 Normative references ... 4  3 Terms and definitions ... 4  4 Technical requirements ... 5  5 Test method ... 7  Foreword Clause 4.3 of this Standard is mandatory; the rest are recommended. This Standard is drafted according to the rules given in GB/T 1.1-2009. This Standard was proposed by Department of Resource Conservation and Environmental Protection of National Development and Reform Commission. This Standard shall be under the jurisdiction of National Technical Committee on Energy Fundamentals and Management Standardization (SAC/TC 20). Drafting organizations of this Standard. Panasonic Welding Systems (Tangshan) Co., Ltd., China National Institute of Standardization, Kaierda Group Co., Ltd., Chengdu Institute for Electrical Inspection, Zhejiang Kende Mechanical & Electrical Co., Ltd., Chengdu Xionggu Electrical Industrial Co., Ltd., Beijing Time Technologies Co., Ltd., Chengdu Southwest Welding Equipment Manufacture Co., Ltd., Shenzhen Riland Industry Co., Ltd., South China University of Technology, Guangzhou City Tongcheng Welding Equipment Technology Co., Ltd., China Quality Certification Center, Zhejiang Provincial Institute for Quality Inspection of Mechanical and Electrical Products, and Chengdu Sanfang Electrical Appliance Co., Ltd. Main drafters of this Standard. Chen Jie, Zhao Yuejin, Chu Hua, Yin Xianhua , Pan Ying, Zhu Yihui, Xiao Jieguang, Bao YunJie, Chen Benlin, Qiu Guang, Huang Shisheng, Wang Zhenmin, Luo Yan, Zhang Zuowen, and Ruan Jianguo. Minimum allowable values of energy efficiency and energy efficiency grades for arc welding machines 1 Scope This Standard specifies the energy efficiency grade, energy efficiency limit value, energy conservation evaluation value and test method of arc welding machines. This Standard applies to arc welding machines that are powered by the voltage specified in Table 1 of GB/T 156, and that are designed for industrial and professional use. This Standard does not apply to AC TIG arc welding machines, AC and DC TIG arc welding machines, arc welding machines that are driven by mechanical equipment, and manual metal arc welding power source with restricted loads that are used by non-professionals. 2 Normative references The following documents are indispensable for application of this document. For the dated documents so quoted, only dated versions apply to this document. For the undated documents so quoted, the latest versions (including all modification sheets) apply to this document. GB/T 156 Standard voltage (IEC 60038) GB/T 2900.22 Electrotechnical terminology - Electric welding machine GB/T 8118 The general specification for arc welding machines GB/T 15579.1 Safety requirements for arc welding equipment - Part 1. Welding power sources (IEC 60974-1) 3 Terms and definitions Those defined in GB/T 2900.22 and GB 15579.1 AND following terms and definitions apply to this document. 3.1 Minimum allowable values of energy efficiency for arc welding machine Under test conditions specified by the standard, the minimum guaranteed value of Table 5 Energy efficiency grades for DC submerged arc welding machine Rated Current Grade/A Efficiency /% Power Factor in Load Conditions Percentage of No-load Current over Rated Input Current/% Grade 3 Grade 2 Grade 1 Grade 2 Grade 1 Grade 1 630~999 78.0 92.0 93.0 0.90 0.95 4.0 1 000~1 300 80.0 93.0 95.0 0.91 0.95 4.0 1 301~2 000 81.0 95.0 96.0 0.92 0.95 4.0 Table 6 Energy efficiency grades for plasma arc welding machine Rated Current Grade/A Efficiency /% Power Factor in Load Conditions Percentage of No-load Current over Rated Input Current/% Grade 3 Grade 2 Grade 1 Grade 2 Grade 1 Grade 1 30~62 78.5 85.0 90.0 0.82 0.90 3.0 63~99 72.5 86.5 90.0 0.85 0.91 3.0 100~159 74.0 88.5 92.0 0.88 0.92 3.0 160~199 82.0 90.0 93.0 0.90 0.92 2.5 200~500 85.0 92.0 95.0 0.90 0.95 2.5 5 Test method Efficiency, power factor and no-load current of electric arc welding machine shall be determined according to the requirements prescribed in GB/T 8118. ......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.