GB 15579.2-2014 English PDFUS$419.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 15579.2-2014: [GB/T 15579.2-2014] Arc welding equipment -- Part 2: Liquid cooling systems Status: Valid
Basic dataStandard ID: GB 15579.2-2014 (GB15579.2-2014)Description (Translated English): [GB/T 15579.2-2014] Arc welding equipment -- Part 2: Liquid cooling systems Sector / Industry: National Standard Classification of Chinese Standard: J64 Classification of International Standard: 25.160.30 Word Count Estimation: 16,116 Date of Issue: 12/5/2014 Date of Implementation: 10/16/2015 Quoted Standard: GB 15579.1-2013; GB 15579.7-2013; IEC 60974-10 Adopted Standard: IEC 60974-2-2007, IDT Regulation (derived from): Announcement of Newly Approved National Standards 2014 No. 27 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 safety requirements and structural requirements for arc welding and similar processes for cooling torch (gun) used by industrial or professional liquid cooling systems. This Standard applies to stand-alone liquid cooling system GB 15579.2-2014: [GB/T 15579.2-2014] Arc welding equipment -- Part 2: Liquid cooling systems---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.Arc welding equipment.Part 2. Liquid cooling systems ICS 25.160.30 J64 National Standards of People's Republic of China Welding equipment - Part 2. Liquid cooling systems (IEC 60974-2.2007, IDT) Issued on. 2014-12-05 2015-10-16 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Table of ContentsIntroduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 1 Environmental conditions 5 Test 1 5.1 Test conditions 1 5.2 Measuring Instruments 2 5.3 Compliance component 2 5.4 Type test 2 5.5 Routine Tests 2 6 Protection against electric shock 2 6.1 Overview 2 6.2 normal use protection against electric shock (direct contact) 3 Protection against electric shock (non-direct contact) 6.3 3 when the accident occurred Connecting 6.4 Power supply 3 6.5 welding circuit leakage current and protective ground 3 Mechanical requirements 7 4 7.1 Basic requirements 4 7.2 coolant overflow 4 7.3 hose connection and hose coupling means 4 8 Cooling System 4 8.1 rated maximum pressure of 4 8.2 Thermal performance requirements 4 Pressure and temperature 8.3 5 9 Unconventional run 5 9.1 General requirements 5 9.2 Stall Test 5 10 cooling power 5 10.1 Test Procedure 5 7 11 Nameplate 11.1 Basic requirements 7 11.2 Description 7 11.3 Content 7 11.4 Tolerance 8 12 Owner's Manual 8 Documents and information provided 12.1 8 13 marks 8 13.1 universal identification 8 Import and export of 13.2 9 13.3 9 pressure warning Schematic Annex A (informative) built-in liquid cooling system and independent external liquid cooling system 10 Nameplate Examples Appendix B (informative) independent external liquid cooling system 11 Figure 1 Measurement of leakage current structural layout 4 Figure 2 a cooling power test circuit 6 Principle 3 composed of freestanding liquid cooling system nameplate Figure 7 Figure A.1 built-in liquid cooling system diagram 10 Figure A.2 independent external liquid cooling system diagram 10 Table 1 Coolant index at 60 ℃ state 6ForewordPart 3 of this chapter are recommended, the rest are mandatory. GB 15579 "arc welding equipment" is divided into 13 parts. --- Part 1. Welding power sources; --- Part 2. Liquid cooling systems; --- Part 3. Arc and Arc Stabilisation Unit; --- Part 4. Periodic inspection and testing; --- Part 5. Wire feeders; --- Part 6. Load limits for manual metal arc welding power source; --- Part 7. torch (gun); --- Part 8. Welding and plasma cutting system gas path means; --- Part 9. Installation and Use; --- Part 10. Electromagnetic compatibility (EMC) requirements; --- Part 11. Electrode holders; --- Part 12. Coupling devices for welding cables; --- Part 13. Welding clamp. This is Part 2 GB 15579's. This section drafted in accordance with GB/T 1.1-2009 given rules. This section uses the translation method is equivalent to using IEC 60974-2.2007 "Arc welding equipment - Part 2. Liquid cooling systems." Correspondence between the consistency of the standards of international documents and normative references of the following documents. --- GB 15579.10-2008 welding equipment - Part 10. Electromagnetic compatibility (EMC) requirements (IEC 60974-10.2007, IDT) This part is proposed by the China Electrical Equipment Industrial Association. This part of the National Welding Standardization Technical Committee (SAC/TC70) centralized. This section drafted by. Kai Erda Welder Co., Ltd., Hangzhou, Chengdu tripartite Electric Co., Ltd., Zhejiang Juba Welding Equipment Manufacturing Limited, Shenzhen Christie Technology Co., Ltd., Zhejiang Kende Mechanical & Electrical Co., Ltd., Beijing Times Technology Co., Ltd., Shanghai Positive special welding equipment Manufacturing Co., Ltd., Tangshan Matsushita Industrial Equipment Co., Ltd., Chengdu Institute of electric welding. The main drafters of this section. Hou Boucher, Pan Ying, Cao then China, Jiao Zhi Huai, Zhuxuan Hui, Zhao Zhijiang, item very, Yangxue Wu, Wu Du. Welding equipment - Part 2. Liquid cooling systems1 ScopeGB 15579 of the provisions of this part of the arc welding and similar processes for cooling torch (gun) used by industrial or professional liquid cooling system System security requirements and structural requirements. This section applies to stand-alone liquid cooling systems. The cooling system may be provided inside or outside the welding power source. This section does not apply to the refrigeration system. Note 1. The typical similar processes such as plasma arc cutting and spraying. Note 2. This section does not include electromagnetic compatibility (EMC) requirements.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB 15579.1-2013 welding equipment - Part 1. Welding power sources (IEC 60974-1.2005, IDT) GB 15579.7-2013 welding equipment - Part 7. torch (gun) (IEC 60974-7.2005, IDT) IEC Part 1060974-10 arc welding equipment. Electromagnetic compatibility (EMC) requirements [Arcweldingequipment-Part 10. Electromagneticcompatibility (EMC) requirements]3 Terms and DefinitionsGB 15579.1-2013 and GB 15579.7-2013 defined and the following terms and definitions apply to this document. 3.1 Cooling power coolingpower Cooling energy under the rated flow. 3.2 Liquid cooling system liquidcoolingsystem For reducing the cooling liquid circulation system for arc welding and similar processes the temperature of the device is used with.4 environmental conditionsChapter 4 should be consistent with GB 15579.1-2013 provisions.5 Test5.1 Test conditions Shall comply with the provisions of 5.1 GB 15579.1-2013. Independent external liquid cooling system can not be tested welding power supply. Built-in liquid cooling system shall be tested together with the welding power source. 5.2 Measuring Instruments Measuring instrument accuracy or precision requirements. a) electrical measuring instruments. 0.5 (± 0.5% of full scale), insulation resistance and dielectric strength measurement exceptions for measuring insulation Precision resistance and dielectric strength of the instrument does not require, but shall be tested for accuracy problems; b) temperature measurement devices. ± 2K; c) pressure measuring instruments. 2.5; d) flow measurement instruments. 2.5. Compliance 5.3 components GB 5.3 shall comply with the provisions of 15579.1-2013. 5.4 Type inspection Unless otherwise specified, all type of inspection should be carried out under the same cooling system. Type test according to the following order. a) general visual inspection (see GB 15579.1-2013 3.7); b) Enclosure protection (see GB 15579.1-2013 6.2.1); c) mechanical requirements (see Chapter 7); d) Insulation resistance (see 6.1.4); e) Dielectric strength (see 6.1.5). Above in this section may be other tests that are not mentioned in any convenient order. 5.5 Routine Tests Each cooling system should be followed by the following routine tests. a) general visual inspection (see GB 15579.1-2013 3.7); b) protection circuit continuity (see GB 15579.1-2013 10.4.2); c) Dielectric strength (see 6.1.5); d) general visual inspection (see 3.7 GB 15579.1-2013, such as liquid leakage inspection and checks the traffic regulations according to the manufacturer's Action or pressure sensor).6 Protection against electric shock6.1 Overview 6.1.1 General GB 6.1.1 shall comply with the provisions of 15579.1-2013. 6.1.2 CLEARANCE GB 6.1.2 shall comply with the provisions of 15579.1-2013. 6.1.3 creepage distance GB 6.1.3 shall comply with the provisions of 15579.1-2013. 6.1.4 Insulation resistance GB 6.1.4 shall comply with the provisions of 15579.1-2013. Test may be carried out when impassable coolant. 6.1.5 Dielectric strength GB 6.1.5 shall comply with the provisions of 15579.1-2013. Test may be carried out when impassable coolant. 6.2 normal use protection against electric shock (direct contact) GB 6.2 shall comply with the provisions of 15579.1-2013. Protection against electric shock (non-direct contact) 6.3 when the accident occurred 6.3.1 protective measures GB 6.3.1 shall comply with the provisions of 15579.1-2013. 6.3.2 input isolation circuit and the welding circuit GB 6.3.2 shall comply with the provisions of 15579.1-2013. 6.3.3 input circuit winding insulation and welding circuit between the windings GB 6.3.3 shall comply with the provisions of 15579.1-2013. 6.3.4 Internal conductors and connections GB 6.3.4 shall comply with the provisions of 15579.1-2013. 6.3.5 Primary leakage current GB 6.3.7 shall comply with the provisions of 15579.1-2013. Connecting 6.4 Power supply Chapter 10 should be consistent with GB 15579.1-2013 provisions. In addition, the power supply of 125V, rated current plug shall not be less than 70% of the input current, measured the fan motor or pump set In the stall state, the measured value, whichever is higher. 6.5 welding circuit leakage current between the protective earth According to the manufacturer's instructions in the liquid cooling system, fill the coolant [see 12.1e)], between the torch and protective earthing system of cooling DC leakage current should not exceed 10mA. Torch design structure will affect the leakage current value, therefore, compliance checks should be used when conventional analog brass torch. Compliance check. at room temperature, in the protection of ground and through a hose length of not more than 0.5m and cooling systems connected to the brass Applying a direct current of 500V (analog torch) between the test, see Figure 1. The minimum diameter of the hose is 5mm. It should not be shorter than the length of copper pipe 10cm, the minimum inner diameter of 5mm. During the test, the cooling system should be filled and simulation torch coolant pump should run correctly. Explanation. 1 --- liquid cooling system; 2 --- hose; 3 --- brass. Figure 1 Measurement of leakage current structural layout7 mechanical requirements7.1 Basic requirements Chapter 14 should be consistent with GB 15579.1-2013 provisions. During the test, the cooling system should be filling coolant. 7.2 coolant overflow When filling in accordance with the manufacturer's coolant spilled liquid should not cause electric shock. Compliance check. a container filled with a liquid coolant, and then 15% of the container capacity of the cooling liquid coolant or 0.25L (both Whichever is the greatest) in not more than 60s time continuously into the container. Then, immediately between the input circuit and the conductive member exposed by 6.1.5 dielectric strength test, the cooling system should be able to withstand the test. 7.3 hose couplings and hose connections If the hose connecting means coupling device or hoses require frequent removal and placed on top of or close to live parts live parts bit Set these live parts shall be protected by splash-proof housing, drains or other suitable means. Except the welding circuit live parts.8 Cooling System8.1 The maximum rated pressure The manufacturer shall determine the maximum rated pressure of the cooling system can be achieved [see 11.3c) number 12)]. Compliance check. block coolant outlet, pressure was measured. 8.2 Thermal performance requirements 8.2.1 heating test Liquid cooling system should be able to work properly without causing any member exceeding its rated temperature at rated cooling power. Compliance Check. Press the Chapter 10 requirements. 8.2.2 tolerance test parameters a) p Pressure. p 10% -2% b) qV Flow. qV 10% -2% c) T temperature. T ± 2K 8.2.3 Test duration of fever GB 7.1.3 shall comply with the provisions of 15579.1-2013. 8.3 Pressure and temperature Maximum pressure and coolant temperature is 70 ℃, the liquid cooling system should work without leakage. Compliance check. After the heating test immediately blocked coolant outlet of the cooling system, the cooling system to run 120s or to protect the system from Turn off automatically.9 Unconventional run9.1 General requirements Cooling System 9.2 under operating conditions should not be electrical breakdown or fire hazard. When these tests do not take into account any part reached Temperature, and the cooling system is able to continuously work properly. The only requirement is that the cooling system should not become unsafe. These tests It may be performed on other cooling systems. For the cooling system with a protective device (such as circuit breakers and thermal protection), and if the protective device in the cooling system unsafe Factors before action should be considered to achieve this requirement. Compliance check. a) At the bottom of the cooling system put a layer of dry absorbent cotton, cotton extend the cooling system each side 150mm. b) cooling system started from cold, according to the requirements of 9.2. c) During the test the cooling system does not appear flames, molten metal, or other material to ignite absorbent cotton phenomenon. d) After the test within 5min cooling system should be able to withstand the dielectric strength test 6.1.5. 9.2 Stall test By cooling fan or pump to achieve the required cooling system 8.2, the next generation of the maximum heat output 8.2.1 condition fan or pump blocked Turn, the cooling system runs 4h at rated input voltage or a rated load speed. NOTE. The purpose of this test is to test the cooling system running under the fan stationary condition. The fan should not be connected to a mechanical or stall. 10 cooling power 10.1 Test Procedure Shall be given an ambient temperature of 25 ℃ (see 8.2.2 test parameter tolerance), the coolant flow is 1L/min, 100% duty cycle Cooling power value (the coolant recommended by the manufacturer), expressed as kW. The test shall be performed on a separate cooling system. Built-in liquid cooling system may be supplied with welding power heating. In this case, the test shall be welded together into power Line, and should be in the welding power supply is at the maximum heating situation. Compliance check. a) a liquid cooling system is recommended by the manufacturer's instructions and fill in the amount of category Fill the Coolant; b) a liquid cooling system should be connected to the test circuit in accordance with FIG. 2; c) adjusting the flow rate of coolant 1L/min ± 0.1L/min; d) adjusting the electrical heater so that the liquid cooling system inlet temperature above ambient temperature 40K ± 2K; e) direct measurement of the liquid cooling system of the inlet and outlet temperature, should minimize heat loss test apparatus; f) the duration of the test is not less than 60min, and to a liquid cooling system temperature does not exceed 2K h time/date. Cooling power calculated by the following formula. P = (T1-T2) qmC qm = qVρ Where. P --- cooling power, kW; T1 --- liquid inlet temperature, K; T2 --- liquid temperature at the outlet, K; Temperature difference T1-T2 ---, K; --- of qm medium flow, kg/s; --- qV volume flow, L/s; C --- heat capacity (see Table 1), kJ/(kg · K); p --- coolant density (see Table 1), kg/L. Explanation. 1 --- liquid cooling system; 4 --- thermometer (T2); 7 --- electric heater; 2 --- liquid inlet; 5 --- regulating valve; 8 --- thermometer (T1). 3 --- liquid outlet; 6 --- flowmeter; 2 a cooling power test circuit of FIG. Table 1 Coolant state index at 60 ℃ liquid Heat capacity C kJ/(kg · K) Density ρ kg/L Water/ethanol (50/50) 3.85 0.88 Water/glycol (50/50) 3.44 1.07 Water/propylene glycol (50/50) 3.69 1.04 Water/glycol (10/90) 2.670 1.10 Water/propylene glycol (10/90) 2.846 1.02 Note. Figures in brackets in the first column volume ratio. 11 Nameplate 11.1 Basic requirements GB 15579.1-2013 shall comply with the provisions of Chapter 15. 11.2 Description Plate should be divided into three parts. a) flag independent external liquid cooling system; b) energy independent external liquid cooling system input; c) a liquid cooling system. Order data should be as shown in Figure 3 (see example in Appendix B) will be shown in principle. Plate size is not specified, you can choose. Note. If desired, you can give additional information on the dedicated nameplate. Some useful technical information can be incorporated into the manufacturer's technical documentation, see Chapter 12. For internal liquid cooling system, Figure 3 c) should be added to the contents of the welding power supply nameplate, see the GB 15579.1-2013 Chapter 15. a) Sign 1) twenty three) 4) b) energy input 5) 6) 7) 8) 9), if any c) a liquid cooling system 10) 11) 12) 3 stand-alone liquid cooling system nameplate diagram consisting principle 11.3 Content a) Sign No. 1) manufacturer's name and address and, if necessary, gives sellers, importers, trademark name and country of origin No. 2) model given by the manufacturer (marker) No. 3) design and manufacturing information (such as serial number) No. 4) number of this standard part of the cooling system in order to confirm compliance with this requirement b) energy input No. 5) Power supply symbol No. 6) U1V/1 (3) ~ Hz rated supply voltage, number of phases (such as single-phase or three-phase), and the amount of alternating current symbol ~ Fixed frequency (eg 50Hz or 60Hz) No. 7) I1maxA maximum rated input current No. 8) IP protection class, such as IP21S or IP23S No. 9) Ⅱ class protection symbol (if applicable) c) a liquid cooling system No. 10) was cooled symbol No. 11) P1L/minkW temperature is 25 ℃, coolant flow is the rated cooling power 1L/min when No. 12) pmaxPa (bar) rated maximum pressure Compliance check. visual and data checking. 11.4 Tolerance The manufacturer shall devices and precision control of the cooling system to meet the nameplate tolerance specified value. a) P cooling power, kW, not less than the value specified on the nameplate; b) pmax rated maximum pressure, Pa (bar), can not exceed the value of nameplate. Compliance check. comparison of data. 12 User's Guide 12.1 documents and information provided by Each liquid cooling system should provide contain the following information (if any) Description. a) Overview; b) the weight of independent external liquid cooling system and the correct connection method; c) a variety of indicator and graphical symbols explanation; d) of the welding power source interface requirements. The control power supply, control signal, static characteristics and connections; e) the liquid cooling system proper use, such as coolant, cooling conditions, placed, the characteristics of the pump, the cooling power characteristics, antifreeze Agents, additives recommended pressure range; f) thermal protection restrictions and instructions (if applicable); g) the degree of protection provided by restrictions on the use (for example, protection class IP21S cooling system suitable for rain or snow Storage and use); h) welding and cutting should be of particular concern to the working conditions, such as greater danger of electric shock environment; i) maintain the liquid cooling system; j) the necessary circuit diagram and a list of recommended spare parts; k) does not apply to the ...... |
