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GB 15579.3-2014: [GB/T 15579.3-2014] Arc welding equipment -- Part 3: Arc striking and stabilizing devices
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[GB/T 15579.3-2014] Arc welding equipment -- Part 3: Arc striking and stabilizing devices
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Basic data | Standard ID | GB 15579.3-2014 (GB15579.3-2014) | | Description (Translated English) | [GB/T 15579.3-2014] Arc welding equipment -- Part 3: Arc striking and stabilizing devices | | 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 | | Adopted Standard | IEC 60974-3-2007, 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 professional or safety requirements for industrial arc and stable arc welding and similar devices used in the process. This Standard is applicable to independent and stable arc ignition device. The arc and arc stability device can | GB 15579.3-2014: [GB/T 15579.3-2014] Arc welding equipment -- Part 3: Arc striking and stabilizing devices
---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 eruipment.Part 3. Arc striking and stabilizing devices
ICS 25.160.30
J64
National Standards of People's Republic of China
Welding equipment - Part 3. Arc and Arc Stabilisation Unit
Arcweldingequipment-Part 3. Arcstrikingandstabilizingdevices
(IEC 60974-3.2007, 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 Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 1 Environmental conditions
5 Test 2
5.1 Test conditions 2
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 Insulation 2
6.2 normal use protection against electric shock (direct contact) 4
Protection against electric shock (non-direct contact) 6.3 4 when the accident occurred
7 thermal performance requirements 4
Unconventional run 4 8
Thermal protection 9 4
Connecting 10 power supply 4
11 Output 4
11.1 Rated peak voltage 4
11.2 Pulse Current 5
7 11.3 average energy
11.4 output capacitor discharge circuit 7
Control circuit 8 12
13 electric shock devices 8
14 mechanical requirements 8
15 8 Nameplate
16 to adjust the output 9
17 User's Guide and logo 9
17.1 Manual 9
17.2 9 logo
Appendix A (informative) coupling system and stable arc ignition device Example 10
Annex B (informative) plate example 11
Figure 1 rated peak voltage of 5
Figure 2 Measurement of pulse current charge amount 5
Figure 3 arc voltage and arc stability 6
Measuring line 4 direct contact 6
Measuring line 5 contact 7 series
Figure 6 capacitor discharge test line 8
Example 10 Figure A.1 coupling system and stable arc ignition device
Figure B.1 plate example external arc and arc stabilizing device 11
Table 1 arc and stable arc loop minimum clearances and creepage distance of 3
Table 2 Rated maximum peak voltage of 5
Foreword
Part 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 3 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 60974-3.2007 "welding equipment - Part 3. Arc and Arc Stabilisation Unit."
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. Wuxi Hanshin Electric Co., Ltd., Shenzhen Christie Technology Co., Ltd., Zhejiang Kende Mechanical & Electrical Co. Shares
The company, Tangshan Matsushita Industrial Equipment Co., Ltd. Hangzhou Kai Erda Welder Co., Ltd., Zhejiang Juba Welding Equipment Manufacturing Co., Ltd., Chengdu
Welding Research Institute, Chengdu tripartite Electric Co.
The main drafters of this part. He Xiaoyang, Huai Jiao Zhi, Zhu Xuanhui, Ya group, Hou Boucher, then Cao Hua, Du Wu NATIONAL NATURAL.
Welding equipment - Part 3. Arc and Arc Stabilisation Unit
1 Scope
This part of GB 15579 specifies safety requirements for industrial or professional stable arc and arc welding and similar devices used in the process.
This section applies to an independent and stable arc ignition device. The arc and stable arc device can be placed inside or outside the welding power source.
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 references
The 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)
3 Terms and Definitions
GB 15579.1-2013 and GB 15579.7-2013 defined and the following terms and definitions apply to this document.
3.1
Ignition unit arcstrikingdevice
In the superimposed voltage to ignite the welding arc circuit means.
3.2
Arc Stabilisation Unit arcstabilizingdevice
In the welding circuit in order to maintain the arc voltage superimposing means.
3.3
Arc voltage arcstrikingvoltage
Superimposed on the no-load voltage of the voltage to ignite the arc.
3.4
Stable arc voltage arcstabilizingvoltage
Superimposed on the arc voltage of the voltage to sustain the arc.
3.5
Arc time arcstrikingperiod
Duration of arc voltage is superimposed on a no-load voltage.
4 environmental conditions
Chapter 4 should be consistent with GB 15579.1-2013 provisions.
5 Test
5.1 Test conditions
Shall comply with the provisions of 5.1 GB 15579.1-2013.
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) high voltage probe. ± 5%.
Compliance 5.3 components
GB 5.3 shall comply with the provisions of 15579.1-2013.
5.4 Type inspection
GB 5.4 shall comply with the provisions of 15579.1-2013. In addition, the following additional requirements.
The method of ignition and stable arc rated peak voltage of 11.1 shall be prescribed measurements, the test sequence for the type test project mechanical requirements
In any convenient order tests before the project.
This section of the other types of inspection items can be performed in any convenient order.
5.5 Routine Tests
5.5.1 External and stable arc extinguishing device
Each external arc and stable arc installation should be in the following order by the following routine tests.
a) general visual inspection (see GB 15579.1-2013 3.7);
b) protection circuit continuity (see Chapter 10, and, where applicable, see GB 15579.1-2013 10.4.2);
c) Dielectric strength (see GB 15579.1-2013 6.1.5);
d) high voltage circuit test. according to manufacturer's instructions, in the high-pressure circuit operating voltage is applied to verify the integrity of the insulation;
NOTE. No-load voltage and reflux cable, either ground or isolation will affect the operating voltage.
e) general visual inspection (see GB 15579.1-2013 3.7).
5.5.2 Built-in arc and arc stabilizing means
For each built-in arc and arc stabilizing devices, welding power should be together in any convenient order the following routine tests.
a) high voltage circuit test. according to manufacturer's instructions, in the high voltage circuit operating voltage is applied to verify the integrity of the insulation.
NOTE. Connect load voltage and return cables, whether grounded or isolation, will affect the operating voltage.
6 Protection against electric shock
6.1 Insulation
6.1.1 General
GB 6.1.1 shall comply with the provisions of 15579.1-2013.
6.1.2 CLEARANCE
Shall comply with the provisions of 15579.1-2013 GB 6.1.2 and adds the following requirements.
The minimum clearances high voltage devices should meet the requirements in Table 1.
Compliance check. visual inspection and measurement.
6.1.3 creepage distance
Shall comply with the provisions of 15579.1-2013 GB 6.1.3 and adds the following requirements.
The minimum circuit stable arc and arc creepage distances shall comply with the provisions in Table 1.
Compliance check. visual inspection and measurement.
Table 1 arc and stable arc loop minimum electrical clearance and creepage distances
Rated peak voltage of a
kV
CLEARANCE b
mm
Creepage distance b
mm
33 6.3
6 5.5 10
88 12.5
NOTE. These values are applied to the circuit is determined in accordance with 11.3.
a measure should be based on 11.1 Rated peak voltage.
b allows the use of interpolation.
6.1.4 Insulation resistance
GB 6.1.4 shall comply with the provisions of 15579.1-2013.
6.1.5 Dielectric strength
Isolated output circuit and coupling devices and stable arc ignition device (for example. a coupling transformer or a coupling capacitor) should be able to withstand higher loading
Set at the rated maximum pulse frequency of 120% of rated voltage arc voltage peaks. Alternatively Test. available with the same peak amplitude, frequency
50Hz or 60Hz AC test voltage of approximately sine wave test, but only the coupling device.
Compliance checks. carried out by the following tests.
Coupling device stable arc voltage and arc used in the test shall be subjected to arc voltage or AC test voltage 60s.
Note 1. The interference suppression capacitors are not coupled device.
The test voltage shall be applied arc 60s in the output circuit, the voltage applied to the site of welding electrodes.
a) between the exposed conductive parts;
b) isolation between other circuits.
There should be no breakdown or flashover phenomenon. Not accompanied by any transient discharge voltage drop is negligible.
Note 2. The interference suppression capacitors shall be subjected to the test output circuit.
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
Shall comply with the provisions of 15579.1-2013 GB 6.3, and adds the following requirements.
According to the rated maximum input voltage, double insulation or reinforced insulation output circuit and the common power supply system electrical isolation. Figure A.1
It is an example of the coupled system and stable arc ignition device.
Compliance check. visual inspection.
7 thermal performance requirements
Installed in the arc and stable arc means carrying the device should be able to transfer specified by the manufacturer rated welding current without.
a) a carrier device than the rated temperature;
b) results in a surface temperature exceeds GB 15579.1-2013 specified in Table 7.
For the use of arc and arc stability means liquid cooling, the test should be performed at the manufacturer's recommended minimum coolant flow and maximum temperature.
Compliance check. According to the provisions of 15579.1-2013 GB 7.2 was measured.
8 Unconventional run
Shall comply with GB 15579.1-2013 provisions of Chapter 8, and the following additional requirements.
If applicable, external and stable arc extinguishing device shall be subjected to unusual running test.
If the arc and arc stabilizing device is designed so that when you run the test unconventional stable arc and arc welding power source with a particular device for use with
It should be connected with a specific power.
If the device is neither stable arc welding torch is connected, not connected with the return cable, the test should be a short circuit at the output until hot
balance.
With stable arc and arc protection device inside the device to automatically power down before the emergence of risk factors, it is considered to meet this test of
Claim.
9 Thermal Protection
Shall comply with the provisions of Chapter 9 GB 15579.1-2013 (if applicable).
10 power supply connection
Shall comply with GB 15579.1-2013 provisions of Chapter 10, and the following additional requirements.
If the arc rating and stable arc device input voltage is higher than the safety extra-low voltage (SELV) or the input voltage provided by the welding circuit,
Exposed conductive member is not required to be grounded.
11 Output
11.1 Rated peak voltage
Rated peak arc voltage and arc stabilizing device shall not exceed the maximum value in Table 2 regulations.
Arc voltage and arc stability is obtained by subtracting GB 15579.1-2013 given in Table 13 no-load voltage value obtained (see Figure 1).
Table 2 Rated maximum peak voltage
Torch type rated peak voltage
Hand torch 15kV
Mechanical guide torch or a plasma torch 20kV
Figure 1 rated peak voltage
Compliance Check. high voltage probe and oscilloscope with sufficient bandwidth is measured.
Rated peak voltage and neither should a welding torch (gun) are connected by jumper, not 220pF capacitor is connected to the cable and the return will be
measuring.
11.2 Pulse Current
11.2.1 the amount of charge
In the half cycle of the pulse current (regardless polarity) should not exceed the maximum charge (see Figure 2).
--- For manual arc welding torch and arc stability means, 8μC; and
--- For mechanically stable arc and arc guide torch and plasma torch, 15μC.
a) AC pulse b) DC pulse
Pulse current charge amount measurement Figure 2
Figure 3 arc voltage and arc stability
11.2.2 danger of electric shock
According to the design and stable arc extinguishing device, the risk of electric shock caused by the pulse current will occur under the following circumstances.
--- The human body and the output of ignition and stable arc means of direct contact (11.2.3);
--- The human body and as part of an arc welding circuit series contacts (see 11.2.4).
Select the greatest amount of charge current pulse corresponding test.
11.2.3 direct contact
Press the circuit shown in Figure 4, with a high voltage probe and oscilloscope with sufficient bandwidth is neither connected with the torch cable is not connected to the reflux
Measure the voltage of the cases, for compliance checking.
Explanation.
1 --- welding or cutting power; 4 --- High Voltage Probes;
2 --- arc and arc stability means; 5 --- load as compact as possible;
3 --- oscilloscope;
a cable as short as possible.
Measuring line 4 direct contact
Capacitance characteristic simulation torch has, the value of CT should be.
--- Reflux or connect torch cable length is 10m and below the arc and arc stability means, 220pF; or
--- Reflux or connect torch cable length exceeds 10m arc and stable arc means of, 1000pF.
To simulate the human body resistance, no sense of resistance RB should be.
--- For use in the risk of electric shock or arc is not the environment and stable arc with mechanical guide means torch, 1kΩ; or
--- For use in greater danger of electric shock environment and stable arc extinguishing device, 500Ω.
Measured voltage divided by the resistance value RB to get a pulse current.
11.2.4 contacts in series
Press the circuit shown in Figure 5, with a high voltage probe and oscilloscope with sufficient bandwidth is neither connected with the torch cable is not connected to the reflux
Measure the voltage of the cases, for compliance checking.
The maximum distance between the arc gap (see FIG. 5) is adjusted to be able to discharge continuously.
Capacitance characteristic simulation torch has, the value of CT should be.
--- Reflux or connect torch cable length is 10m and below the arc and arc stability means, 220pF; or
--- Reflux for connecting the torch or arc and cable length exceeds 10m of Arc Stabilisation Unit, 1000pF.
To simulate the human body resistance, no sense of resistance RB should be.
--- For use in the risk of electric shock or arc is not the environment and stable arc with mechanical guide means torch, 1kΩ; or
--- For use in greater danger of electric shock environment and stable arc extinguishing device, 500Ω.
Measured voltage divided by the resistance value RB to get a pulse current.
Explanation.
1 --- welding or cutting power; 4 --- High Voltage Probes;
2 --- arc and arc stability means; 5 --- load as compact as possible;
3 --- oscilloscope; 6 --- arc gap;
a cable as short as possible.
Measuring line 5 series contact
11.3 average energy
The average energy of simulated human resistance, arc and arc stability means in the non-inductive resistor produced within the 1s period shall not exceed.
--- Arc and stable arc for manual welding torch device is connected, 4J; and
--- For arc and stable arc guide means connected mechanically torch and plasma torch, 20J.
Compliance check. the test according to the provisions of 11.2.
Arc and arc stability means the average energy of less than 4J can be considered to meet the energy limits apply to all parts of GB 15579.
Minus GB 15579.1-2013 Table 13 worth of no-load voltage to arc voltage and arc stability (see Figure 3).
11.4 output capacitor discharge circuit
After the output and stable arc extinguishing device is cut off 1s, the output DC voltage should not exceed 113V.
Compliance Check. Press the circuit of Figure 6, with a high voltage probe and oscilloscope with sufficient bandwidth for voltage measurement.
Explanation.
1 --- welding or cutting power; 4 --- High Voltage Probes;
2 --- arc and arc stability means; 5 --- load as compact as possible;
3 --- oscilloscope;
a cable as short as possible.
Figure 6 capacitor discharge test line
Capacitance characteristic simulation torch has, the value of CT should be.
--- Reflux or connect torch cable length is 10m and below the arc and arc stability means, 220pF; or
--- Reflux for connecting the torch or arc and cable length exceeds 10m of Arc Stabilisation Unit, 1000pF.
12 control loops
GB 15579.1-2013 shall comply with the provisions of Chapter 12.
13 electric shock devices
Not applicable.
14 mechanical requirements
Shall comply with the provisions of Chapter 14 of GB 15579.1-2013 (only applies to external and stable arc extinguishing device).
15 Nameplate
Each should be securely mounted or printed clearly and indelibly marked on the nameplate external arc and arc stability means its contents should be at least
include.
No. 1) manufacturer's name and address and, if necessary, gives sellers, importers, trademarks and name the country of origin;
Model Number 2) given by the manufacturer (marker);
Number 3) Serial number of design and manufacturing information (such as a sequence number);
Number 4) of this section the standard number to confirm arc and arc stability means compliance with this requirement;
No. 5) UP Rated peak voltage;
No. 6) X ..% duty cycle (if applicable);
No. 7) I2 Rated Welding Current (if applicable);
No. 8) U1 rated input voltage and frequency;
Rated input current No. 9) I1 maximum loads;
No. 10) IP .. Degree of protection, such as IP21 or IP23;
No. 11) Ⅱ class protection symbol (if applicable).
Compliance check. visual inspection.
If the built-in arc and arc stabilizing devices should be No. 5) was added to the welding power supply nameplate (see the GB 15579.1-2013
Chapter 15).
a) Sign
1) 2)
3) 4)
b) Output
5)
6) X 6a) 6b) 6c)
7) I2 7a) 7b) 7c)
c) energy input
8) 9)
10) Optional 11), if applicable
16 to adjust the output
Chapter 16 should be consistent with GB 15579.1-2013 provisions.
17 User's Guide and logo
17.1 Instructions
Shall comply with the provisions of GB 17.1 15579.1-2013 and increase the following requirements.
Manufacturers should be given in the specification.
--- Rated peak voltage;
--- Arc and arc stabilizing device is designed for manual welding torch or torch mechanical guide.
Since the pulse current will increase the risk of electric shock while using a torch or reflux cable has a longer cable (see Chapter 11), the manufacturer shall
Specify the maximum cable length (m) and the torch type and gives the following warning.
Will increase the risk of electric shock length of the torch cable or reflux cable exceeds the maximum length of time specified by the manufacturer. Warning.
17.2 Logo
Shall comply with the provisions of 17.2 GB 15579.1-2013 (applies only to the external and stable arc extinguishing device).
Appendix A
(Informative)
Coupling system examples arc and arc stabilizing device
a) b)
c) d)
Explanation.
1 --- welding or cutting power; 5 --- voltage generator;
2 --- arc and arc stability means; 6 --- choke means;
3 --- output; 7 --- input coupling winding;
4 --- voltage source; 8 --- isolation diode.
Coupling system example of Figure A.1 and stable arc ignition device
Appendix B
(Informative)
Plate example
a) Sign
1) Manufacturer 2) Model
3) sequence number 4) GB 15579.3
b) Output
5) UP = 8.5kV
6) X 6a) 35% 6b) 60% 6c) 100%
7) I2 7a) 300A 7b) 220A 7c) 180A
c) energy input
8) U1 = 220V 9) I1 = 0.5A
10) IP23 11)
Figure B.1 plate example external arc and arc stabilizing device
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