{"id":418143,"date":"2024-10-20T06:19:35","date_gmt":"2024-10-20T06:19:35","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-60974-12021\/"},"modified":"2024-10-26T11:47:58","modified_gmt":"2024-10-26T11:47:58","slug":"bs-en-iec-60974-12021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-60974-12021\/","title":{"rendered":"BS EN IEC 60974-1:2021"},"content":{"rendered":"

This part of IEC 60974 is applicable to power sources for arc welding and allied processes designed for INDUSTRIAL AND PROFESSIONAL USE, and supplied by a voltage not exceeding 1 000 V, 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 100 V and 1 000 V are given in Table 1 of IEC 60038:2009. NOTE 3 This document does not include electromagnetic compatibility (EMC) requirements.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
4<\/td>\nEuropean foreword
Endorsement notice <\/td>\n<\/tr>\n
6<\/td>\nBlank Page <\/td>\n<\/tr>\n
7<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
12<\/td>\nFOREWORD\u200a <\/td>\n<\/tr>\n
14<\/td>\n1 Scope\u200a
2 Normative references\u200a <\/td>\n<\/tr>\n
15<\/td>\n3 Terms and definitions\u200a <\/td>\n<\/tr>\n
16<\/td>\nTables
Table 1 \u2013 Alphabetical list of terms <\/td>\n<\/tr>\n
17<\/td>\n3.1 General terms\u200a and definitions <\/td>\n<\/tr>\n
26<\/td>\n3.2 Terms and definitions related to battery systems\u200a <\/td>\n<\/tr>\n
28<\/td>\n3.3 Terms and definitions related to efficiency and idle state power measurement\u200a <\/td>\n<\/tr>\n
30<\/td>\n4 Environmental conditions\u200a
5 Tests\u200a
5.1 Test conditions\u200a
5.2 Measuring instruments\u200a <\/td>\n<\/tr>\n
31<\/td>\n5.3 Conformity of components\u200a
Figure 1 \u2013 Flow chart for conformity methods of 5.3\u200a <\/td>\n<\/tr>\n
32<\/td>\n5.4 Type tests\u200a
5.5 Routine tests\u200a
Figures <\/td>\n<\/tr>\n
33<\/td>\n6 Protection against electric shock\u200a
6.1 Insulation\u200a <\/td>\n<\/tr>\n
34<\/td>\nFigure 2 \u2013 Example of insulation configuration for Class I equipment\u200a <\/td>\n<\/tr>\n
35<\/td>\nTable 2 \u2013 Minimum clearances for overvoltage category III <\/td>\n<\/tr>\n
37<\/td>\nTable 3 \u2013 Minimum creepage distances <\/td>\n<\/tr>\n
38<\/td>\nTable 4 \u2013 Insulation resistance <\/td>\n<\/tr>\n
39<\/td>\nTable 5 \u2013 Dielectric test voltages <\/td>\n<\/tr>\n
40<\/td>\n6.2 Protection against electric shock in normal service (direct contact)\u200a <\/td>\n<\/tr>\n
42<\/td>\nFigure 3 \u2013 Measurement of welding circuit touch current\u200a
Figure 4 \u2013 Measurement of touch current in normal condition \u200a <\/td>\n<\/tr>\n
43<\/td>\n6.3 Protection against electric shock in case of a fault condition (indirect contact)\u200a
Table 6 \u2013 Minimum distance through insulation <\/td>\n<\/tr>\n
45<\/td>\n7 Thermal requirements\u200a
7.1 Heating test\u200a <\/td>\n<\/tr>\n
46<\/td>\n7.2 Temperature measurement\u200a <\/td>\n<\/tr>\n
48<\/td>\n7.3 Limits of temperature rise\u200a
Table 7 \u2013 Temperature limits for windings, commutators and slip-rings <\/td>\n<\/tr>\n
49<\/td>\n7.4 Loading test\u200a
Table 8 \u2013 Temperature limits for external surfaces <\/td>\n<\/tr>\n
50<\/td>\n7.5 Commutators and slip-rings\u200a
8 THERMAL PROTECTION
8.1 General requirements\u200a
8.2 Construction\u200a
8.3 Location\u200a <\/td>\n<\/tr>\n
51<\/td>\n8.4 Operating capacity\u200a
8.5 Operation\u200a
8.6 Resetting\u200a
8.7 Indication\u200a
9 Abnormal operation\u200a
9.1 General requirements\u200a <\/td>\n<\/tr>\n
52<\/td>\n9.2 Stalled fan test\u200a
9.3 Short circuit test\u200a
Table 9 \u2013 Cross-section of the output short-circuit conductor <\/td>\n<\/tr>\n
53<\/td>\n9.4 Overload test\u200a
9.5 Capacitors short circuit\u200a
10 Connection to the supply network\u200a
10.1 Supply voltage\u200a <\/td>\n<\/tr>\n
54<\/td>\n10.2 Multi-supply voltage\u200a
10.3 Means of connection to the supply circuit\u200a
10.4 Marking of terminals\u200a <\/td>\n<\/tr>\n
55<\/td>\nTable 10 \u2013 Current and time requirements for protective circuits <\/td>\n<\/tr>\n
56<\/td>\n10.6 Cable anchorage\u200a
Table 11 \u2013 Minimum cross-sectional area of the external protective copper conductor
Table 12 \u2013 Verification of continuity of the protective circuit <\/td>\n<\/tr>\n
57<\/td>\n10.7 Inlet openings\u200a
10.8 Supply circuit on\/off switching device\u200a
Table 13 \u2013 Pull <\/td>\n<\/tr>\n
58<\/td>\n10.9 Supply cables\u200a <\/td>\n<\/tr>\n
59<\/td>\n10.10 Supply coupling device (attachment plug)\u200a
11 Output\u200a
11.1 Rated no-load voltage \u200a <\/td>\n<\/tr>\n
61<\/td>\nFigure 5 \u2013 Measurement of RMS values\u200a
Table 14 \u2013 Summary of allowable rated no-load voltages <\/td>\n<\/tr>\n
62<\/td>\n11.2 Type test values of the conventional load voltage\u200a
Figure 6 \u2013 Measurement of peak values\u200a <\/td>\n<\/tr>\n
63<\/td>\n11.3 Mechanical switching devices used to adjust output\u200a <\/td>\n<\/tr>\n
64<\/td>\n11.4 Welding circuit connections\u200a <\/td>\n<\/tr>\n
65<\/td>\n11.5 Power supply to external devices connected to the welding circuit\u200a
11.6 Auxiliary power supply\u200a
11.7 Welding cables\u200a <\/td>\n<\/tr>\n
66<\/td>\n12 Control circuits\u200a
12.1 General requirement\u200a
12.2 Isolation of control circuits\u200a
12.3 Working voltages of remote control circuits\u200a
13.1 General requirements\u200a <\/td>\n<\/tr>\n
67<\/td>\n13 HAZARD REDUCING DEVICE
13.2 Types of hazard reducing devices\u200a
13.3 Requirements for hazard reducing devices\u200a
Table 15 \u2013 Hazard reducing device requirements <\/td>\n<\/tr>\n
68<\/td>\n14 Mechanical provisions\u200a
14.1 General requirements\u200a
14.2 Enclosure\u200a <\/td>\n<\/tr>\n
69<\/td>\n14.3 Handling means\u200a
14.4 Drop withstand\u200a <\/td>\n<\/tr>\n
70<\/td>\n14.5 Tilting stability\u200a
15.1 General requirements\u200a
15.2 Description\u200a <\/td>\n<\/tr>\n
71<\/td>\n15 RATING PLATE
15.3 Contents\u200a
Figure 7 \u2013 Principle of the rating plate \u200a <\/td>\n<\/tr>\n
74<\/td>\n15.4 Tolerances\u200a <\/td>\n<\/tr>\n
75<\/td>\n15.5 Direction of rotation\u200a
16 Adjustment of the output\u200a
16.1 Type of adjustment\u200a
16.2 Marking of the adjusting device\u200a <\/td>\n<\/tr>\n
76<\/td>\n16.3 Indication of current or voltage control\u200a
17 Instructions and markings\u200a
17.1 Instructions\u200a <\/td>\n<\/tr>\n
77<\/td>\n17.2 Markings\u200a <\/td>\n<\/tr>\n
78<\/td>\nAnnexes
Annex A (normative) Nominal voltages of supply networks\u200a
Table A.1 \u2013 Nominal voltages for supply networks with protective overvoltage control <\/td>\n<\/tr>\n
79<\/td>\nTable A.2 \u2013 Single-phase three-wire or two-wire AC or DC systems <\/td>\n<\/tr>\n
80<\/td>\nTable A.3 \u2013 Three-phase four-wire or three-wire AC systems <\/td>\n<\/tr>\n
81<\/td>\nAnnex B (informative) Example of a combined dielectric test\u200a
Figure B.1 \u2013 Combined high-voltage transformers\u200a <\/td>\n<\/tr>\n
82<\/td>\nAnnex C (normative) Unbalanced load in case of AC tungsten inert-gas welding power sources\u200a
C.1 General\u200a
Figure C.1 \u2013 Voltage and current during AC tungsten inert-gas welding\u200a <\/td>\n<\/tr>\n
83<\/td>\nC.2 Unbalanced load\u200a
C.3 Example for an unbalanced load\u200a
Figure C.2 \u2013 Unbalanced voltage during AC tungsten inert-gas welding\u200a <\/td>\n<\/tr>\n
84<\/td>\nFigure C.3 \u2013 AC welding power source with unbalanced load\u200a <\/td>\n<\/tr>\n
85<\/td>\nAnnex D (informative) Extrapolation of temperature to time of shutdown\u200a <\/td>\n<\/tr>\n
86<\/td>\nAnnex E (normative) Construction of supply circuit terminals\u200a
E.1 Size of terminals\u200a
E.2 Connections at the terminals\u200a
Table E.1 \u2013 Range of conductor dimensions to be accepted by the supply circuit terminals <\/td>\n<\/tr>\n
87<\/td>\nE.3 Construction of the terminals\u200a
E.4 Fixing of the terminals\u200a <\/td>\n<\/tr>\n
88<\/td>\nAnnex F (informative) Cross-reference to non-SI units\u200a
Table F.1 \u2013 Cross-reference for mm2 to American wire gauge (AWG) <\/td>\n<\/tr>\n
89<\/td>\nAnnex G (informative) Suitability of supply network for the measurement of the true RMS value of the supply current\u200a <\/td>\n<\/tr>\n
90<\/td>\nAnnex H (informative) Plotting of static characteristics\u200a
H.1 General\u200a
H.2 Method\u200a
H.3 Analysis of the results\u200a <\/td>\n<\/tr>\n
91<\/td>\nAnnex I (normative) Test methods for a 10 Nm impact\u200a
I.1 Pendulum impact hammer\u200a
I.2 Free fall spherical steel weight\u200a
Figure I.1 \u2013 Test set-up\u200a
Table I.1 \u2013 Angle of rotation ( to obtain 10 Nm impact <\/td>\n<\/tr>\n
92<\/td>\nTable I.2 \u2013 Mass of the free fall weight and height of the free fall <\/td>\n<\/tr>\n
93<\/td>\nAnnex J (normative) Thickness of sheet metal for enclosures\u200a
Table J.1 \u2013 Minimum thickness of sheet metal for steel enclosures <\/td>\n<\/tr>\n
94<\/td>\nTable J.2 \u2013 Minimum thickness of sheet metal for enclosures of aluminium, brass or copper <\/td>\n<\/tr>\n
95<\/td>\nAnnex K (informative) Examples of rating plates\u200a
Figure K.1 \u2013 Single-phase transformer\u200a <\/td>\n<\/tr>\n
96<\/td>\nFigure K.2 \u2013 Three-phase rotating frequency converter\u200a <\/td>\n<\/tr>\n
97<\/td>\nFigure K.3 \u2013 Subdivided rating plate: single-\/three-phase transformer rectifier\u200a <\/td>\n<\/tr>\n
98<\/td>\nFigure K.4 \u2013 Engine-generator-rectifier\u200a <\/td>\n<\/tr>\n
99<\/td>\nFigure K.5 \u2013 Single-\/three-phase inverter type\u200a <\/td>\n<\/tr>\n
100<\/td>\nFigure K.6 \u2013 Batterypowered welding power source with integral battery\u200a <\/td>\n<\/tr>\n
101<\/td>\nFigure K.7 \u2013 Batterypowered welding power source with detachable \/ separable battery\u200a <\/td>\n<\/tr>\n
102<\/td>\nAnnex L (informative) Graphical symbols for arc welding equipment\u200a
L.1 General\u200a
L.2 Use of symbols\u200a <\/td>\n<\/tr>\n
103<\/td>\nL.3 Symbols\u200a
Table L.1 \u2013 Letters used as symbols <\/td>\n<\/tr>\n
121<\/td>\nL.4 Examples of combinations of symbols\u200a <\/td>\n<\/tr>\n
123<\/td>\nL.5 Examples of control panels\u200a
Figure L.1 \u2013 Input voltage power switch
Figure L.2 \u2013 Arc force control potentiometer
Figure L.3 \u2013 Remote receptacle and selector switches <\/td>\n<\/tr>\n
124<\/td>\nFigure L.4 \u2013 Terminals with inductance selector for MIG\/MAG welding
Figure L.5 \u2013 Process switch (MMA, TIG, MIG)
Figure L.6 \u2013 Selector switch on AC\/DC equipment
Figure L.7 \u2013 Panel indicator lights (overheat, fault, arc striking, output voltage) <\/td>\n<\/tr>\n
125<\/td>\nFigure L.8 \u2013 Setting pulsing parameters using digital display <\/td>\n<\/tr>\n
126<\/td>\nAnnex M (informative) Efficiency and idle state power measurement\u200a
M.1 General conditions for measurement\u200a <\/td>\n<\/tr>\n
127<\/td>\nM.2 Measurements\u200a
Table M.1 \u2013 Typical nominal electricity supply details for some regions <\/td>\n<\/tr>\n
128<\/td>\nTable M.2 \u2013 Load conditions for the arc welding power source <\/td>\n<\/tr>\n
130<\/td>\nM.3 Test report\u200a
Figure M.1 \u2013 Measurement procedure \u200a <\/td>\n<\/tr>\n
131<\/td>\nTable M.3 \u2013 Required reported data (measured and calculated) <\/td>\n<\/tr>\n
132<\/td>\nM.4 Test report template <\/td>\n<\/tr>\n
134<\/td>\nAnnex N (normative) Touch current measurement \u200a
Figure N.1 \u2013 Measuring network, touch current weighted for perception or startlereaction\u200a <\/td>\n<\/tr>\n
135<\/td>\nFigure N.2 \u2013 Measuring network, touch current weighted for letgo-immobilization \u200a <\/td>\n<\/tr>\n
137<\/td>\nFigure N.3 \u2013 Diagram for touch current measurement on fault condition at operating temperature for single-phase connection of appliances other than those of class II\u200a <\/td>\n<\/tr>\n
139<\/td>\nFigure N.4 \u2013 Diagram for touch current measurement on fault condition for three-phase four-wire system connection of appliances other than those of class II\u200a <\/td>\n<\/tr>\n
140<\/td>\nAnnex O (normative) Battery-powered welding power sources\u200a
O.1 General\u200a <\/td>\n<\/tr>\n
141<\/td>\nO.4 Environmental conditions\u200a
O.5 Tests\u200a <\/td>\n<\/tr>\n
143<\/td>\nO.6 Protection against electric shock\u200a <\/td>\n<\/tr>\n
145<\/td>\nO.7 Thermal requirements\u200a <\/td>\n<\/tr>\n
147<\/td>\nO.8 Thermal protection\u200a
O.9 Abnormal operation\u200a <\/td>\n<\/tr>\n
151<\/td>\nO.10 Connection to the supply network\u200a <\/td>\n<\/tr>\n
153<\/td>\nO.14 Mechanical provisions\u200a <\/td>\n<\/tr>\n
154<\/td>\nO.15 Rating plate\u200a <\/td>\n<\/tr>\n
156<\/td>\nO.17 Instructions and markings\u200a <\/td>\n<\/tr>\n
157<\/td>\nFigure O.1 \u2013 Marking of battery voltage class B electric components\u200a <\/td>\n<\/tr>\n
158<\/td>\nBibliography\u200a <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Arc welding equipment – Welding power sources<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2022<\/td>\n162<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":418152,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-418143","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/418143","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/418152"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=418143"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=418143"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=418143"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}