GB/T 15579.1-2024 Arc welding equipment—Part 1: Welding power sources
1 Scope
This document is applicable to power sources for arc welding and allied processes designed for INDUSTRIAL AND PROFESSIONAL USE, and supplied by a voltage not exceeding 1?000V, BATTERY supplied or driven by mechanical means.
This document specifies safety and performance requirements of WELDING POWER SOURCES and PLASMA CUTTING SYSTEMS.
This document is not applicable to limited duty arc welding and cutting power sources which are designed mainly for use by laymen and designed in accordance with IEC 60974-6. This document includes requirements for battery-powered WELDING POWER SOURCES and BATTERY packs, which are given in Annex O.
This document is not applicable to testing of power sources during periodic maintenance or after repair.
Note 1: Typical allied processes are electric arc cutting and arc spraying.
Note 2: AC systems having a nominal voltage between 100V and 1 000V are given in Table 1 of GB/T 156-2017.
Note 3: This document does not include electromagnetic compatibility (EMC) requirements.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 16935.1-2023 Insulation coordination for equipment within low-voltage systems - Part 1: Principles requirements and tests (IEC 60664-1:2020, IDT)
GB/T 35758-2017 Household electrical appliances - Measurement of standby power (IEC 62301:2011, IDT)
ISO 7010:2019 Graphical symbols - Safety colours and safety signs - Registered safety signs
Note: GB/T 31523.1-2015 Safety information identification systems - Part 1: Signs (ISO 7010:2011, MOD)
IEC 60050-151 International Electrotechnical Vocabulary - Part 151: Electrical and magnetic devices
Note: GB/T 2900.83-2008 Electrotechnical terminology - Electrical and magnetic devices (IEC 60050-151:2001, IDT)
IEC 60050-851 International Electrotechnical Vocabulary (IEV) — Part 851: Electric welding
IEC 60245-6 Rubber insulated cables - Rated voltages up to and including 450/750V - Part 6: Arc welding electrode cables
Note: GB/T 5013.6-2008 Rubber insulated cables of rated voltages up to and including 450/750V - Part 6: Arc welding electrode (IEC 60245-6:1994, IDT)
IEC 60445 Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals ,conductor terminations and conductors
Note: GB/T 4026-2019 Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals, conductor terminations and conductors (IEC 60445:2017, IDT);
IEC 60529 Degrees of protection provided by enclosure (IP code)
Note: GB 4208-2017 Degrees of protection provided by enclosure (IP code) (IEC 60529:2013, IDT)
IEC 60664-3 Insulation coordination for equipment within low-voltage systems - Part 3: Use of coating ,potting or moulding for protection against pollution
Note: GB/T 16935.3-2016 Insulation coordination for equipment within low-voltage systems - Part 3: Use of coating, potting or moulding for protection against pollution (IEC 60664-3:2010, IDT)
IEC 60695-11-10 Fire hazard testing - Part 11-10: Test flames 50W horizontal and vertical flame test methods
Note: GB/T 5169.16-2017 Fire hazard testing for electric and electronic products - Part 16: Test flames - 50 W horizontal and vertical flame test methods (IEC 60695-11-10:2013, IDT)
IEC 60974-7 Arc welding equipment - Part 7: Torches
Note: GB 15579.7-2023 Arc welding equipment - Part 7: Torches (IEC 60974-7:2019, IDT)
IEC 60974-10 Arc welding equipment - Part 10: Electromagnetic compatibility (EMC) requirements
Note: GB 15579.10-2020 Arc welding equipment - Part 10: Electromagnetic compatibility (EMC) requirements (IEC 60974-10:2015, IDT)
IEC 61140 Protection against electric shock - Common aspects for installation and equipment
Note: GB/T 17045-2020 Protection against electric shock - Common aspects for installation and equipment (IEC 61140:2016, IDT);
IEC 61558-2-4 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1100V - Part 2-4: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers
Note: GB/T 19212.5-2011 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1100 V - Part 5: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers (IEC 61558-2-4:2009, IDT)
IEC 61558-2-6 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1100 V - Part 2-6: Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers
Note: GB/T 19212.7-2012 Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1100 V - Part 7: Particular requirements and tests for safety isolating transformers and power supply units incorporating safety isolating transformers (IEC 61558-2-6:2009, IDT)
IEC 62133-1:2017 Secondary cells and batteries containing alkaline or other non-acid electrolytes - Safety requirements for portable sealed secondary cells ,and for batteries made from them, for use in portable applications - Part 1: Nickel systems
IEC 62133-2:2017 Secondary cells and batteries containing alkaline or other non-acid electrolytes - Safety requirements for portable sealed secondary lithium cells, and for batteries made from them, for use in portable applications – Part 2: Lithium systems
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-151, IEC 60050-851, IEC 60664-1 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1 General terms?and definitions
3.1.1
welding power source/arc welding power source
equipment for supplying current and voltage and having the required characteristics suitable for arc welding and allied processes
Note 1: A WELDING POWER SOURCE can also supply services to other equipment and auxiliaries for example auxiliary power, cooling liquid, consumable arc welding electrode and gas to shield the arc and the welding area.
Note 2: This entry revises IEC 60050-851:2008, 851-13-01, which will be updated.
3.1.2
industrial and professional use
use intended only for EXPERTS or INSTRUCTED PERSONS
[SOURCE: IEC 60050-851:2008, 851-11 -12]
3.1.3
expert (competent person, skilled person)
person who can judge the work assigned and recognize possible hazards on the basis of professional training, knowledge, experience and knowledge of the relevant equipment
Note: Several years of practice in the relevant technical field can be taken into consideration in assessment of professional training.
[SOURCE: IEC 60050-851:2008, 851-11-10]
3.1.4
instructed person
person informed about the tasks assigned and about the possible hazards involved in neglectful behaviour
Note: If necessary, the person has undergone some training.
[SOURCE: IEC 60050-851:2008, 851-11-13]
3.1.5
type test
test of one or more devices made to a given design to check if these devices comply with the requirements of the standard concerned
[SOURCE: IEC 60050-851:2008, 851-12-05]
3.1.6
routine test
test made on each individual device during or after manufacture to check if it complies with the requirements of the standard concerned or the criteria specified
[SOURCE: IEC 60050-851:2008, 851-12-06]
3.1.7
visual inspection
inspection by eye to verify that there are no apparent discrepancies with respect to provisions of the standard concerned
[SOURCE: IEC 60050-851:2008, 851-11-11]
3.1.8
drooping characteristic
external STATIC CHARACTERISTIC of a WELDING POWER SOURCE which, in its normal welding range, is such that the negative slope is greater than or equal to 7V/100A
Note: This entry revises IEC 60050-851:2008, 851-12-34, which will be updated.
3.1.9
flat characteristic
external STATIC CHARACTERISTIC of a WELDING POWER SOURCE which, in its normal welding range, is such that, as the current increases, the voltage either decreases by less than 7V/100A or increases by less than 10V/100A
[SOURCE: IEC 60050-851:2008, 851-12-35]
3.1.10
static characteristic
relationship between the voltage and the current at the output terminals of a WELDING POWER SOURCE when connected to a CONVENTIONAL LOAD
Note: This entry revises IEC 60050-851:2008, 851-12-32, which will be updated.
3.1.11
welding circuit
conductive material through which the WELDING CURRENT is intended to flow
Note 1: In arc welding, the arc is a part of the WELDING CIRCUIT.
Note 2: In certain arc welding processes, the welding arc can be established between two electrodes. In such a case, the workpiece is not necessarily a part of the WELDING CIRCUIT.
[SOURCE: IEC 60050-851:2008, 851-14-10]
3.1.12
control circuit
internal or external circuit for the operational control of the equipment or for protection of the power circuits, or both
EXAMPLE 1: CONTROL CIRCUITS intended for interface between the WELDING POWER SOURCE and external equipment designed by the manufacturer.
EXAMPLE 2: CONTROL CIRCUITS intended for interface between the WELDING POWER SOURCE and other types of ancillary equipment.
Note: This entry revises IEC 60050-851:2008, 851-14-11, which will be updated.
Foreword I
Introduction V
1 Scope
2 Normative references
3 Terms and definitions
3.1 General terms?and definitions
3.2 Terms and definitions related to BATTERY SYSTEMS
3.3 Terms and definitions related to efficiency and IDLE STATE power measurement
4 Environmental conditions
5 Tests
5.1 Test conditions
5.2 Measuring instruments
5.3 Conformity of components
5.4 TYPE TESTS
5.5 ROUTINE TESTS
6 Protection against electric shock
6.1 Insulation
6.2 Protection against electric shock in normal service (direct contact)
6.3 Protection against electric shock in case of a fault condition (indirect contact)
7 Thermal requirements
7.1 Heating test
7.2 Temperature measurement
7.3 Limits of TEMPERATURE RISE
7.4 Loading test
7.5 Commutators and slip-rings
8 THERMAL PROTECTION
8.1 General requirements
8.2 Construction
8.3 Location
8.4 Operating capacity
8.5 Operation
8.6 Resetting
8.7 Indication
9 Abnormal operation
9.1 General requirements
9.2 Stalled fan test
9.3 Short circuit test
9.4 Overload test
9.5 Capacitors short circuit
10 Connection to the supply network
10.1 Supply voltage
10.2 Multi-supply voltage
10.3 Means of connection to the SUPPLY CIRCUIT
10.4 Marking of terminals
10.5 PROTECTIVE CIRCUIT
10.6 Cable anchorage
10.7 Inlet openings
10.8 SUPPLY CIRCUIT on/off switching device
10.9 Supply cables
10.10 Supply coupling device (attachment plug)
11 Output
11.1 RATED NO-LOAD VOLTAGE
11.2 TYPE TEST values of the CONVENTIONAL LOAD VOLTAGE
11.3 Mechanical switching devices used to adjust output
11.4 WELDING CIRCUIT connections
11.5 Power supply to external devices connected to the WELDING CIRCUIT
11.6 Auxiliary power supply
11.7 Welding cables
12 CONTROL CIRCUITS
12.1 General requirement
12.2 Isolation of CONTROL CIRCUITS
12.3 WORKING VOLTAGE s of remote CONTROL CIRCUITS
13 HAZARD REDUCING DEVICE
13.1 General requirements
13.2 Types of HAZARD REDUCING DEVICES
13.3 Requirements for HAZARD REDUCING DEVICES
14 Mechanical provisions
14.1 General requirements
14.2 Enclosure
14.3 Handling means
14.4 Drop withstand
14.5 Tilting stability
15 RATING PLATE
15.1 General requirements
15.2 Description
15.3 Contents
15.4 Tolerances
15.5 Direction of rotation
16 Adjustment of the output
16.1 Type of adjustment
16.2 Marking of the adjusting device
16.3 Indication of current or voltage control
17 Instructions and markings
17.1 Instructions
17.2 Markings
Annex A (Normative) Nominal voltages of supply networks
Annex B (Informative) Example of a combined dielectric test
Annex C (Normative) Unbalanced load in case of AC tungsten inert-gas welding power sources
C.1 General
C.2 Unbalanced load
C.3 Example for an unbalanced load
Annex D (Informative) Extrapolation of temperature to time of shutdown
Annex E (Normative) Construction of supply circuit terminals
E.1 Size of terminals
E.2 Connections at the terminals
E.3 Construction of the terminals
E.4 Fixing of the terminals
Annex F (Informative) Cross-reference to non-SI units
Annex G (Informative) Suitability of supply network for the measurement of the true RMS value of the supply current
Annex H (Information) Plotting of static characteristics
H.1 General
H.2 Method
H.3 Analysis of the results
Annex I (Normative) Test methods for a 10Nm impact
I.1 Pendulum impact hammer
I.2 Free fall spherical steel weight
Annex J (Normative) Thickness of sheet metal for enclosures
Annex K (Informative) Examples of rating plates
Annex L (Informative) Graphical symbols for arc welding equipment
L.1 General
L.2 Use of symbols
L.3 Symbols
L.4 Examples of combinations of symbols
L.5 Examples of control panels
Annex M (Informative) Efficiency and IDLE STATE power measurement
M.1 General conditions for measurement
M.2 Measurements
M.3 Test report
M.4 Test report template
Annex N (Normative) TOUCH CURRENT measurement
Annex O (Normative) Battery-powered WELDING POWER SOURCES
O.1 General
O.4 Environmental conditions
O.5 Tests
O.6 Protection against electric shock
O.7 Thermal requirements
O.8 THERMAL PROTECTION
O.9 Abnormal operation
O.10 Connection to the supply network
O.14 Mechanical provisions
O.15 RATING PLATE
O.17 Instructions and markings
Bibliography
