GB 15579.12-2012 English PDFUS$339.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB 15579.12-2012: [GB/T 15579.12-2012] Arc welding equipment -- Part 12: Coupling devices for welding cables Status: Valid GB 15579.12: Historical versions
Basic dataStandard ID: GB 15579.12-2012 (GB15579.12-2012)Description (Translated English): [GB/T 15579.12-2012] Arc welding equipment -- Part 12: Coupling devices for welding cables Sector / Industry: National Standard Classification of Chinese Standard: J64 Classification of International Standard: 25.160.30 Word Count Estimation: 13,174 Older Standard (superseded by this standard): GB 15579.12-1998 Quoted Standard: GB 4208; GB 15579.1; IEC 60050-151 Adopted Standard: IEC 60974-12-2005, MOD Regulation (derived from): National Standards Bulletin No. 41 of 2012 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 Chinese standard specifies the safety coupling device and performance requirements. This standard applies to welding and allied processes cable coupling device. The vehicle should be designed to fit devices can be connected or disconnected without to GB 15579.12-2012: [GB/T 15579.12-2012] Arc welding equipment -- Part 12: Coupling devices for welding cables---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 12. Coupling devices for welding cables ICS 25.160.30 J64 National Standards of People's Republic of China Replacing GB 15579.12-1998 Welding equipment - Part 12. Coupling devices for welding cables (IEC 60974-12.2005, MOD) Issued on.2012-12-31 2013-12-01 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 type inspection 2 6 design requirements 2 7 Protection against electric shock 3 8 Thermal Rating 4 Mechanical requirements 9 5 10 6 Flag 11 Owner's Manual 6 Appendix A (informative) size 7 Test apparatus of Figure 1 Resistance welding spatters 4 Figure A.1 convex device 7 Figure A.2 concave device 7 Table 1 Relationship between the coupling device rated current value and welding cable 2 Table 2 Voltage Rating 3 Table 3 extrusion pressure of 5 Table A.1 Figure A.1 and A.2 of size 7ForewordThis part of Chapter 3, "Terms and definitions" are recommended, the rest are mandatory. "Arc welding equipment" ranging from electric arc welder for its auxiliary equipment, is expected to be divided into 13 parts, which are. --- Part 1. Welding power sources; --- Part 2. Cooling system; --- Part 3. Arc and Arc Stabilisation Unit; --- Part 4. Inspection and testing during use; --- Part 5. Wire feeders; --- Part 6. Load limits for manual metal arc welding power source; --- Part 7. torch (gun); --- Part 8. 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 section "arc welding equipment" in Section 12. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB 15579.12-1998 "Safety requirements for arc welding equipment - Part 12. Coupling devices for welding cables." This portion GB 15579.12-1998 compared to the main changes are as follows. --- Increasing the rated voltage limit protection class requirements; --- Increasing the DC rated current tolerance applied during temperature rise test; --- Requirement increases the size of the coupling means; --- For insulation resistance and dielectric strength values has been modified; --- Cancel direct contact with the anti-protection requirements; --- Canceled heating rods into the insulating layer depth limit; --- Increase the rated peak demand stable arc voltage and arc in the flag, eliminating additional marking requirements symmetric coupling device. This section uses redrafted Law Amendment uses IEC 60974-12.2005 "welding equipment - Part 12. Coupling devices for welding cables." This part of the reason for modification using the IEC 60974-12.2005, is based on the following reasons. a) increase in the definition of "self-locking device" in 3.5, and added the corresponding content in 9.1. b) China's vast territory, the southern summer, more typical hot and humid climate, so this part of the press GB/T 2423.3 requirements to the wet The heat treatment temperature is 40 ℃. In this way, in line with national conditions, but also with the welding machine industry GB/T 8118 and other relevant standards coordination Consistent. c) welding cable coupling device is supporting the use of electric arc welder, if the welding current rating level and the nominal current rating discrepancies, Misleading. So this part of the nominal current rating according to GB/T 8118 provisions of sub-file, IEC 60974-12 current Grade retention in the form of brackets. 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 is drafted. Welding Nantong-Hong Electrical Co., Ltd., Nanjing Coney Technology Industrial Co. Ltd., Wenzhou City is special welding equipment Factory, Zhejiang Kende Mechanical & Electrical Co., Ltd. Yueqing Cheng Feng Electrical and Mechanical Manufacturing Co., Ltd., Shenzhen Ruiling Industrial Co., Ltd., Chengdu three Fang Electric Co., Ltd., Chengdu Electric and Inspection. The main drafters of this section. Tangzai Kang, Ma Tao, items have pass, Zhuxuan Hui, Qiu light, Xing Jun, Zheng broken ground NATIONAL NATURAL. This part of the standard replaces the previous editions are. --- GB 15579.12-1998. Welding equipment - Part 12. Coupling devices for welding cables1 ScopeThis part of GB 15579 specifies safety and performance requirements of coupling devices. This section applies to cable coupling means of welding and allied processes. The coupling device shall be designed to be connected or disconnected without tools. This section does not apply to the coupling means of underwater welding.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 4208 housing protection (IP Code) (GB 4208-2008, IEC 60529.2001, IDT) GB 15579.1 welding equipment - Part 1. Welding power sources (GB 15579.1-2004, IEC 60974-1.2000, IDT) IEC 60050-151 International Electrotechnical terminology (IEV) Chapter 151. electromagnetic device (InternationalElectrotechnical Vocabulary-Part 151. Electricalandmagneticdevices)3 Terms and DefinitionsGB 15579.1 and IEC 60050-151 and the following definition of terms and definitions apply to this document. 3.1 Welding clamp electrodeholder Gripping and manipulation electrodes, welding wire and welding circuit is connected to an operator and welding circuit insulation handpiece. 3.2 Coupling means couplingdevice Connect two welding cable, welding cable or to a device that connects a welding device. 3.3 Stop means retainingmeans When connected correctly enables the coupling device is positioned, and to prevent accidental loosening and added a mechanical structure. 3.4 Arc voltage and arc stability arcstrikingandstabilizingvoltage The dimension arc or arc welding needs in the loop superimposed voltage. 3.5 Self-locking device self-retainingmeans No additional locking member or similar accessories, rely solely on spin insertion force connector can be applied to make their own produce and holding means locking action.4 environmental conditionsCoupling device shall be able to run under the following conditions. a) Ambient temperature. --- During welding. -10 ℃ ~ 40 ℃; --- In the transport and storage process. -25 ℃ ~ 55 ℃; b) Relative humidity. less than 90% 20 ℃ when.5 type inspection5.1 Test conditions All types of tests should be carried out on a new, complete installation of the coupling device. All types of tests should be carried out at an ambient temperature of 10 ℃ ~ 40 ℃. Precision measuring instruments. a) electrical measuring instruments. 0.5 (of full scale ± 0.5%); Insulation resistance and dielectric strength measurement exceptions for measuring insulation resistance and dielectric strength of the accuracy of the instrument is not specified, but the measure Should consider the amount of accuracy problems; b) temperature measurement devices. ± 2K. 5.2 Test order Here are the type of inspection shall be in the following order. a) general visual inspection; b) temperature (see 8.1); c) crushing strength (see 9.5); d) Insulation resistance (see 7.2); e) Dielectric strength (see 7.3). It said another type inspection items not mentioned may be any convenient order.6 design requirementsCoupling device shall be 60% of the rated load current when sustained rate design. This corresponds to the value specified in Table 1 welding cable assembly The minimum cross-sectional area of the range. Table 1 Relationship between the coupling device rated current value and welding cables Rated continuous current rate of 60% when the load Welding cable assembly range minimum cross-sectional area mm2 125 ≤10 160 (150) 10 - 16 20016 ~ 25 25025 ~ 35 315 (300) 35 - 50 40050 ~ 70 50070 ~ 95 NOTE. The ambient temperature exceeds 40 ℃ case, the coupling means in said rated current use, will make welding cable conductor temperature of 85 ℃, lead Induced outer insulation can not withstand damage. By measuring is checked or not.7 Protection against electric shock7.1 Voltage Rating Coupling device shall determine its rated limits and stable arc and arc voltage value based on process conditions in Table 2 requirements (if any). Table 2 Voltage Rating Crafts Voltage rating (peak) Insulation resistance MΩ Dielectric strength (rms) Enclosure rating GB 4208 In addition to the plasma arc cutting process and all except 113 2.5 1000 IP3X Plasma arc cutting 500 2.5 2100 IP3X 7.2 Insulation resistance The new coupling means after moist heat treatment the insulation resistance should not be less than 2.5MΩ. Through its qualified or not following test. a) heat treatment. Indoor temperature hot and humid effective work space should be maintained between (40 ± 2) ℃, relative humidity maintained within (93 ± 3)% range. The coupling means without cable first hot and humid indoor 40 ℃ preheating, when the coupling device reaches a steady temperature before humidifier to To prevent condensation on the coupling device. Coupling means in Damp indoor 48h heat treatment. b) insulation resistance measurement. Coupling means after heat treatment, surface water and immediately dry it, and then use a metal foil tightly wrapped in an outer surface of the insulator. It is applied between the coupling means and the metal foil conductor 500V DC voltage, insulation resistance measurement, a reading at the stable. 7.3 Dielectric strength Insulating part should be able to withstand the effective value of the AC test voltage of 1000V without breakdown or flashover phenomenon. Do not make any voltage drop Instantaneous discharge is negligible. If the coupling device is superimposed stable arc voltage and arc welding power supply supporting the use of insulating the coupling device manufacturer should be able to withstand Predetermined rated peak arc voltage and arc stability. When the test high-frequency pulse voltage is applied to a pulse width of 0.2μs ~ 8μs, frequency 50Hz ~ 300Hz, the voltage value of 20% higher than the rated peak arc voltage and arc voltage stability. Through its qualified or not following test. Dry water coupling surface of the device, and then use a metal foil tightly wrapped in an outer surface of the insulator. AC test voltage sine wave approximation, the peak is not more than 1.45 times the RMS frequency of 50Hz or 60Hz, is applied to the charging unit Between the partition and the metal foil, Length 1min. If the coupling device is superimposed stable arc voltage and arc welding power supply supporting the use of the coupling device shall be able to withstand high-frequency test voltage. Full value of the time-frequency voltage shall continue 2s, part of a high frequency voltage is applied to the electrodes and circuit. a) the surface of the conductive body; b) Other isolation circuit. During the test should not be breakdown or flashover phenomenon. Discharge is not accompanied by any voltage drop is negligible. Replace test. If the coupling device is superimposed stable arc voltage and arc welding power supply supporting the use of a frequency of 50Hz or 60Hz, approximately sinusoidal AC voltage test. 7.4 protection against accidental contact with live parts Transmission welding current, and after disconnecting potentially live parts, the design requirements of the recessed depth of at least 10% of the inner diameter of the insulator, the most Little is 2mm. The lifetime of the coupling device, the length of the portion protruding insulation should be guaranteed, in order to withstand the normal conditions of use. By length measurement and visual inspection, inspection or not.8 Thermal Rating8.1 Temperature Rise Coupling device assembly specified in Table 1 of the largest cross-sectional area of not tinned copper cable, plug in normal and with the rated current, the temperature rise Does not exceed the following limits. a) the outer surface of the hottest. 40K; b) welding cables and junction coupling device. 45K. Note. The temperature rise is relative to the ambient air temperature (up to 40 ℃). By the following test to check whether or not qualified. The coupling means normal docking and fitted at least 2m long welding cable. Coupling means by a welding cable itself supported at a distance 1m between two wooden supports, and 200mm from the ground in a horizontal state, the test site should be no air flow. Direct current is passed through the coupling means 75% of the rated current value (approximately equal to 60% duty cycle), until the rate of temperature rise of no more than 2K/h when reached. Throughout the test period, the DC current rating should remain constant, tolerance of ± 2%. 8.2 Resistance welding spatter Insulated coupling means should be able to withstand the hot object and the normal amount of welding spatter, it would not burn or become unsafe. Means for checking whether or not qualified as shown in Figure 1. Millimeters Explanation. 1 --- 8 chrome-nickel steel; 2 --- coupling means; θ --- test temperature. Figure 1 Resistance welding spatters of test device The heating rod is passed through a current of approximately 25A to reach 300 5 0 ℃ thermally stable state. During the test, the temperature should be maintained, And it is measured with a thermometer or thermocouple. While in a horizontal position after the heating rods placed insulation weakness in the coupling device (for example. the thinnest insulating layer, closest to the charged body Site), sustained 2min. Heating rods should not penetrate the insulating layer and the contact with live parts. With a small spark or flame try to ignite the escaping gas contact point, if the gas is flammable, so leave a heating rod, the flame should stand That is extinguished.9 mechanical requirements9.1 stop means Actuating means or self-locking device should prevent the coupling device due to axial tension and accidental release only. NOTE. If possible, should be shown markers, such as relative two lines can visually ascertain the stopping device is functioning. Compliance is checked by manual and visual inspection or not. 9.2 Welding cable entry Cable entry cable coupling device shall be designed to prevent cable damage due to bending. By visual inspection whether or not qualified. 9.3 welding cable insulation embedded depth Cable coupler shall be designed such that the cable insulation into the depth of at least twice the diameter of cables, a minimum of 30mm. Measured with the manufacturer of the largest cross-sectional area of the welding cable, check whether or not qualified. 9.4 Welding cable The coupling device shall be designed in cross-sectional area within the range specified by the manufacturer of welding cable can be replaced. After the connection can withstand the mechanical tensile test Experience without isolation. Compliance is checked by visual inspection and the following test or not. Plugs, description connector or plug connector in accordance with the manufacturer's, the largest cross-sectional area of the assembly welding cable. Connections should be able to withstand 10 applied to the tensile test welding cables. The force to the cable cross-section 40N/mm2 calculated maximum 2000N, each within the pull 1s Force gradually increased from zero to a predetermined value, and continues 1s or more. After the test conductor shall be no displacement. With manufacturer's specified minimum cross-sectional area of the welding cable, repeat the test. If more than one method of assembling the cable, the assembly method to deal with each test. 9.5 crushing strength Coupling device shall withstand the test without showing extruded insulation breakage or mechanical damage. By the following test, with manual and visual inspection of its qualified or not. The one by the manufacturer's instructions provided with the largest cross-sectional area of the cable welding cable couplers placed between two parallel plate, its cable coupler Axis should be perpendicular to the direction of pressure. Applied pressure should be gradually increased to the value given in Table 3. Table 3 compression pressure Welding cable cross-sectional area mm2 pressure ≤25 1200 25 ~ 501500 > 502 000 Install the manufacturer's specified minimum cross section of welding cables after the test is repeated. 9.6 Dimensions Size example of the coupling means in Appendix A. 10 logo The following should be clearly and permanently marked on each of the coupling device. a) the manufacturer, seller, importer's name or trademark; b) the maximum permissible welding cable cross-sectional area; c) allow the welding cable minimum cross-sectional area; d) stable arc voltage and arc rated peak (if applicable); e) The part number and confirm the coupling device complies with its provisions. For the rated current is 125A or 160A (150A) of the coupling means, due to the size it is not clearly marked all tags, C items may be omitted), and expressed or text on the package. Check mark, check whether or not qualified. 11 User's Guide Each deputy coupling device shall provide a copy of the manual contains the following. a) coupling means correct insertion and disengagement; b) the welding cable is connected properly; c) selection of welding cable types and sizes; d) the relationship between the allowable current and duty cycle rate. Read the instruction manual to check whether or not qualified.Appendix A(Informative) size The size of the coupling device shown in Figure A.1, A.2 Figure and Table A.1. Note. The shape of the locking pin may be cylindrical, conical or prismatic. Figure A.1, Table A.1 and Figure A.2 unspecified portion size specified by the manufacturer themselves. Figure A.1 convex device Figure A.2 concave device Table A.1 Figure A.1 and A.2 in size size Dimensions are in millimeters or degrees Type 1 Type 2 Type 3 α 4 5 1 ° 40 ' r 0.4 0.4 0.4 d 9 0.08 0.02 13 0.08 0.02 15 0.08 0.02 R Maximum 6 8.7 10 N maximum of 162 730 M maximum of 264 045 Maximum H 11 15.5 17.5 Table A.1 (CONTINUED) size Dimensions are in millimeters or degrees Type 1 Type 2 Type 3 G minimum 6.5 77 F minimum 2 2.5 6 E r 4.65 0.1 0 10.04 0.1 0.1 D 9-0.01-0.1 13-0.01-0.1 15-0.01-0.1 C max 4.5 5.2 6 B Max 4.5 5.2 6 L maximum of 122 026 ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 15579.12-2012_English be delivered?Answer: Upon your order, we will start to translate GB 15579.12-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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