{"id":275456,"date":"2024-10-19T18:31:40","date_gmt":"2024-10-19T18:31:40","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-60974-12018\/"},"modified":"2024-10-25T14:56:32","modified_gmt":"2024-10-25T14:56:32","slug":"bs-en-iec-60974-12018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-60974-12018\/","title":{"rendered":"BS EN IEC 60974-1:2018"},"content":{"rendered":"

This part of IEC 60974 is applicable to power sources for arc welding and allied processes designed for industrial and professional use<\/strong>, 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<\/strong>. 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. This fifth edition cancels and replaces the fourth edition published in 2012 and constitutes a technical revision. The significant changes with respect to the previous edition are the following: \u2013   improvement of Figure 1 (6.1.1); \u2013   modification of Table 3 (6.1.4); \u2013   description of energy efficiency measurements in Annex M; \u2013   inclusion of battery supplied welding power sources in the scope. Requirements therefore are described in Annex O.<\/p>\n

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PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
5<\/td>\nAnnex ZA(normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
7<\/td>\nEnglish
CONTENTS <\/td>\n<\/tr>\n
14<\/td>\nFOREWORD <\/td>\n<\/tr>\n
16<\/td>\n1 Scope
2 Normative references <\/td>\n<\/tr>\n
17<\/td>\n3 Terms and definitions
3.1 General terms <\/td>\n<\/tr>\n
26<\/td>\n3.2 Terms related to battery systems <\/td>\n<\/tr>\n
29<\/td>\n4 Environmental conditions <\/td>\n<\/tr>\n
30<\/td>\n5 Tests
5.1 Test conditions
5.2 Measuring instruments
5.3 Conformity of components <\/td>\n<\/tr>\n
31<\/td>\n5.4 Type tests
5.5 Routine tests <\/td>\n<\/tr>\n
32<\/td>\n6 Protection against electric shock
6.1 Insulation
6.1.1 General <\/td>\n<\/tr>\n
33<\/td>\n6.1.2 Clearances
Figures
Figure 1 \u2013 Example of insulation configuration for Class I equipment <\/td>\n<\/tr>\n
34<\/td>\nTables
Table 1 \u2013 Minimum clearances for overvoltage category III <\/td>\n<\/tr>\n
35<\/td>\n6.1.3 Creepage distances <\/td>\n<\/tr>\n
36<\/td>\nTable 2 \u2013 Minimum creepage distances <\/td>\n<\/tr>\n
37<\/td>\n6.1.4 Insulation resistance
6.1.5 Dielectric strength
Table 3 \u2013 Insulation resistance <\/td>\n<\/tr>\n
38<\/td>\nTable 4 \u2013 Dielectric test voltages <\/td>\n<\/tr>\n
39<\/td>\n6.2 Protection against electric shock in normal service (direct contact)
6.2.1 Protection provided by the enclosure
6.2.2 Capacitors <\/td>\n<\/tr>\n
40<\/td>\n6.2.3 Automatic discharge of supply circuit capacitors
6.2.4 Isolation of the welding circuit
6.2.5 Welding circuit touch current <\/td>\n<\/tr>\n
41<\/td>\n6.2.6 Touch current in normal condition
Figure 2 \u2013 Measurement of welding circuit touch current
Figure 3 \u2013 Measurement of touch current in normal condition <\/td>\n<\/tr>\n
42<\/td>\n6.3 Protection against electric shock in case of a fault condition (indirect contact)
6.3.1 Protective provisions
6.3.2 Isolation between windings of the supply circuit and the welding circuit
6.3.3 Internal conductors and connections
Table 5 \u2013 Minimum distance through insulation <\/td>\n<\/tr>\n
43<\/td>\n6.3.4 Additional requirements for plasma cutting systems
6.3.5 Movable coils and cores
6.3.6 Touch current in fault condition <\/td>\n<\/tr>\n
44<\/td>\n7 Thermal requirements
7.1 Heating test
7.1.1 Test conditions
7.1.2 Tolerances of the test parameters <\/td>\n<\/tr>\n
45<\/td>\n7.1.3 Duration of test
7.2 Temperature measurement
7.2.1 Measurement conditions
7.2.2 Surface temperature sensor
7.2.3 Resistance <\/td>\n<\/tr>\n
46<\/td>\n7.2.4 Embedded temperature sensor
7.2.5 Determination of the ambient air temperature
7.2.6 Recording of temperatures
7.3 Limits of temperature rise
7.3.1 Windings, commutators and slip-rings <\/td>\n<\/tr>\n
47<\/td>\n7.3.2 External surfaces
Table 6 \u2013 Temperature limits for windings, commutators and slip-rings <\/td>\n<\/tr>\n
48<\/td>\n7.3.3 Other components
7.4 Loading test
Table 7 \u2013 Temperature limits for external surfaces <\/td>\n<\/tr>\n
49<\/td>\n7.5 Commutators and slip-rings
8 Thermal protection
8.1 General requirements
8.2 Construction
8.3 Location
8.4 Operating capacity <\/td>\n<\/tr>\n
50<\/td>\n8.5 Operation
8.6 Resetting
8.7 Indication
9 Abnormal operation
9.1 General requirements <\/td>\n<\/tr>\n
51<\/td>\n9.2 Stalled fan test
9.3 Short circuit test
Table 8 \u2013 Cross-section of the output short-circuit conductor <\/td>\n<\/tr>\n
52<\/td>\n9.4 Overload test
10 Connection to the supply network
10.1 Supply voltage
10.2 Multi-supply voltage
10.3 Means of connection to the supply circuit <\/td>\n<\/tr>\n
53<\/td>\n10.4 Marking of terminals
10.5 Protective circuit
10.5.1 Continuity requirement <\/td>\n<\/tr>\n
54<\/td>\n10.5.2 Type test
10.5.3 Routine test
Table 9 \u2013 Current and time requirements for protective circuits
Table 10 \u2013 Minimum cross-sectional area of the external protective copper conductor <\/td>\n<\/tr>\n
55<\/td>\n10.6 Cable anchorage
Table 11 \u2013 Verification of continuity of the protective circuit <\/td>\n<\/tr>\n
56<\/td>\n10.7 Inlet openings
10.8 Supply circuit on\/off switching device
Table 12 \u2013 Pull <\/td>\n<\/tr>\n
57<\/td>\n10.9 Supply cables
10.10 Supply coupling device (attachment plug) <\/td>\n<\/tr>\n
58<\/td>\n11 Output
11.1 Rated no-load voltage
11.1.1 Rated no-load voltage for use in environments with increased risk of electric shock
11.1.2 Rated no-load voltage for use in environments without increased risk of electric shock
11.1.3 Rated no-load voltage for the use with mechanically held torches with increased protection for the operator
11.1.4 Rated no-load voltage for special processes for example plasma cutting <\/td>\n<\/tr>\n
59<\/td>\n11.1.5 Additional requirements
Table 13 \u2013 Summary of allowable rated no-load voltages <\/td>\n<\/tr>\n
60<\/td>\n11.1.6 Measuring circuits
Figure 4 \u2013 Measurement of r.m.s. values
Figure 5 \u2013 Measurement of peak values <\/td>\n<\/tr>\n
61<\/td>\n11.2 Type test values of the conventional load voltage
11.2.1 Manual metal arc welding with covered electrodes
11.2.2 Tungsten inert gas
11.2.3 Metal inert\/active gas and flux cored arc welding
11.2.4 Submerged arc welding
11.2.5 Plasma cutting
11.2.6 Plasma welding
11.2.7 Plasma gouging
11.2.8 Additional requirements <\/td>\n<\/tr>\n
62<\/td>\n11.3 Mechanical switching devices used to adjust output
11.4 Welding circuit connections
11.4.1 Protection against unintentional contact
11.4.2 Location of coupling devices
11.4.3 Outlet openings
11.4.4 Three-phase multi-operator welding transformer <\/td>\n<\/tr>\n
63<\/td>\n11.4.5 Marking
11.4.6 Connections for plasma cutting torches
11.5 Power supply to external devices connected to the welding circuit
11.6 Auxiliary power supply <\/td>\n<\/tr>\n
64<\/td>\n11.7 Welding cables
12 Control circuits
12.1 General requirement
12.2 Isolation of control circuits
12.3 Working voltages of remote control circuits <\/td>\n<\/tr>\n
65<\/td>\n13 Hazard reducing device
13.1 General requirements
13.2 Types of hazard reducing devices
13.2.1 Voltage reducing device
13.2.2 Switching device for AC to DC
13.3 Requirements for hazard reducing devices
13.3.1 Disabling the hazard reducing device
Table 14 \u2013 Hazard reducing device requirements <\/td>\n<\/tr>\n
66<\/td>\n13.3.2 Interference with operation of a hazard reducing device
13.3.3 Indication of satisfactory operation
13.3.4 Fail to a safe condition
14 Mechanical provisions
14.1 General requirements
14.2 Enclosure
14.2.1 Enclosure materials <\/td>\n<\/tr>\n
67<\/td>\n14.2.2 Enclosure strength
14.3 Handling means
14.3.1 Mechanised handling
14.3.2 Manual handling <\/td>\n<\/tr>\n
68<\/td>\n14.4 Drop withstand
14.5 Tilting stability
15 Rating plate
15.1 General requirements <\/td>\n<\/tr>\n
69<\/td>\n15.2 Description
Figure 6 \u2013 Principle of the rating plate <\/td>\n<\/tr>\n
70<\/td>\n15.3 Contents <\/td>\n<\/tr>\n
73<\/td>\n15.4 Tolerances
15.5 Direction of rotation
16 Adjustment of the output
16.1 Type of adjustment <\/td>\n<\/tr>\n
74<\/td>\n16.2 Marking of the adjusting device
16.3 Indication of current or voltage control <\/td>\n<\/tr>\n
75<\/td>\n17 Instructions and markings
17.1 Instructions <\/td>\n<\/tr>\n
76<\/td>\n17.2 Markings <\/td>\n<\/tr>\n
77<\/td>\nAnnexes
Annex A (informative) Nominal voltages of supply networks <\/td>\n<\/tr>\n
78<\/td>\nAnnex B (informative) Example of a combined dielectric test
Figure B.1 \u2013 Combined high-voltage transformers <\/td>\n<\/tr>\n
79<\/td>\nAnnex C (normative) Unbalanced load in case of AC tungsten inert-gas welding power sources
C.1 General
C.2 Unbalanced load
Figure C.1 \u2013 Voltage and current during AC tungsten inert-gas welding <\/td>\n<\/tr>\n
80<\/td>\nC.3 Example for an unbalanced load
Figure C.2 \u2013 Unbalanced voltage during AC tungsten inert-gas welding
Figure C.3 \u2013 AC welding power source with unbalanced load <\/td>\n<\/tr>\n
81<\/td>\nAnnex D (informative) Extrapolation of temperature to time of shutdown <\/td>\n<\/tr>\n
82<\/td>\nAnnex E (normative) Construction of supply circuit terminals
E.1 Size of terminals
E.2 Connections at the terminals
Table E.1 \u2013 Range of conductor dimensions to be accepted by the supply circuit terminals <\/td>\n<\/tr>\n
83<\/td>\nE.3 Construction of the terminals
E.4 Fixing of the terminals <\/td>\n<\/tr>\n
84<\/td>\nAnnex F (informative) Cross-reference to non-SI units
Table F.1 \u2013 Cross-reference for mm2 to American wire gauge (AWG) <\/td>\n<\/tr>\n
85<\/td>\nAnnex G (informative) Suitability of supply network for the measurement of the true r.m.s. value of the supply current <\/td>\n<\/tr>\n
86<\/td>\nAnnex H (informative) Plotting of static characteristics
H.1 General
H.2 Method
H.3 Analysis of the results <\/td>\n<\/tr>\n
87<\/td>\nAnnex I (normative) Test methods for a 10 Nm impact
I.1 Pendulum impact hammer
Figure I.1 \u2013 Test set-up
Table I.1 \u2013 Angle of rotation \u03b8 to obtain 10 Nm impact <\/td>\n<\/tr>\n
88<\/td>\nI.2 Free fall spherical steel weight
Table I.2 \u2013 Mass of the free fall weight and height of the free fall <\/td>\n<\/tr>\n
89<\/td>\nAnnex J (normative) Thickness of sheet metal for enclosures <\/td>\n<\/tr>\n
90<\/td>\nTable J.1 \u2013 Minimum thickness of sheet metal for steel enclosures <\/td>\n<\/tr>\n
91<\/td>\nTable J.2 \u2013 Minimum thickness of sheet metal for enclosures of aluminium, brass or copper <\/td>\n<\/tr>\n
92<\/td>\nAnnex K (informative) Examples of rating plates
Figure K.1 \u2013 Single-phase transformer <\/td>\n<\/tr>\n
93<\/td>\nFigure K.2 \u2013 Three-phase rotating frequency converter <\/td>\n<\/tr>\n
94<\/td>\nFigure K.3 \u2013 Subdivided rating plate: single-\/three-phase transformer rectifier <\/td>\n<\/tr>\n
95<\/td>\nFigure K.4 \u2013 Engine-generator-rectifier <\/td>\n<\/tr>\n
96<\/td>\nFigure K.5 \u2013 Single-\/three-phase inverter type <\/td>\n<\/tr>\n
97<\/td>\nFigure K.6 \u2013 Battery powered welding power source with integral battery <\/td>\n<\/tr>\n
98<\/td>\nFigure K.7 \u2013 Battery powered welding power source with detachable \/ separable battery <\/td>\n<\/tr>\n
99<\/td>\nAnnex L (informative) Graphical symbols for arc welding equipment
L.1 General
L.2 Use of symbols
L.2.1 General
L.2.2 Selection of symbols
L.2.3 Size of symbols
L.2.4 Use of colour <\/td>\n<\/tr>\n
100<\/td>\nL.3 Symbols
L.3.1 General
L.3.2 Letter symbols
Table L.1 \u2013 Letters used as symbols <\/td>\n<\/tr>\n
101<\/td>\nL.3.3 Graphical symbols <\/td>\n<\/tr>\n
121<\/td>\nL.4 Examples of combinations of symbols <\/td>\n<\/tr>\n
123<\/td>\nL.5 Examples of control panels <\/td>\n<\/tr>\n
124<\/td>\nFigure L.2 \u2013 Arc force control potentiometer
Figure L.1 \u2013 Input voltage power switch
Figure L.3 \u2013 Remote receptacle and selector switches
Figure L.4 \u2013 Terminals with inductance selector for MIG\/MAG welding <\/td>\n<\/tr>\n
125<\/td>\nFigure L.6 \u2013 Selector switch on AC\/DC equipment
Figure L.5 \u2013 Process switch (MMA, TIG, MIG)
Figure L.7 \u2013 Panel indicator lights (overheat, fault, arc striking, output voltage)
Figure L.8 \u2013 Setting pulsing parameters using digital display <\/td>\n<\/tr>\n
126<\/td>\nAnnex M (informative) Efficiency and idle state power measurement
M.1 Measuring efficiency
M.2 Measuring idle state power <\/td>\n<\/tr>\n
128<\/td>\nAnnex N (normative) Touch current measurement in fault condition
Figure N.1 \u2013 Measuring network for weighted touch current <\/td>\n<\/tr>\n
130<\/td>\nFigure N.2 \u2013 Diagram for touch current measurement on fault condition at operating temperature for single-phase connection of appliances other than those of class II <\/td>\n<\/tr>\n
132<\/td>\nFigure N.3 \u2013 Diagram for touch current measurement on fault condition for three-phase four-wire system connection of appliances other than those of class II <\/td>\n<\/tr>\n
133<\/td>\nAnnex O (normative) Battery-powered welding power sources
O.1 General <\/td>\n<\/tr>\n
134<\/td>\nO.4 Environmental conditions
O.5 Tests
O.5.1 Test conditions <\/td>\n<\/tr>\n
135<\/td>\nO.5.3 Conformity of components <\/td>\n<\/tr>\n
136<\/td>\nO.6 Protection against electric shock
O.6.1 Insulation
O.6.1.1 General
O.6.1.4 Insulation resistance <\/td>\n<\/tr>\n
137<\/td>\nO.6.1.5 Dielectric strength
O.6.2 Protection against electric shock in normal service <\/td>\n<\/tr>\n
138<\/td>\nO.7 Thermal requirements
O.7.1 Heating test
O.7.1.1 Test conditions <\/td>\n<\/tr>\n
139<\/td>\nO.7.1.3 Duration of test
O.7.2 Temperature measurement
O.7.2.1 Measurement conditions
O.7.4 Loading test
O.7.201 Normal charging of lithium-ion systems <\/td>\n<\/tr>\n
140<\/td>\nO.8 Thermal protection
O.8.1 General requirements
O.8.4 Operating capacity
O.9 Abnormal operation
O.9.1 General requirements <\/td>\n<\/tr>\n
141<\/td>\nO.9.2 Stalled fan test
O.9.3 Short circuit test
O.9.4 Overload test
O.9.201 Welding power source \u2013 abnormal conditions <\/td>\n<\/tr>\n
142<\/td>\nO.9.202 Welding circuit components \u2013 abnormal conditions
O.9.203 Lithium-ion charging systems \u2212 abnormal conditions <\/td>\n<\/tr>\n
143<\/td>\nO.9.204 Lithium-ion battery short circuit <\/td>\n<\/tr>\n
144<\/td>\nO.9.205 Batteries other than lithium-ion \u2013 overcharging
O.9.206 Battery pack disconnection
O.9.207 General purpose batteries
O.10 Connection to the supply network <\/td>\n<\/tr>\n
145<\/td>\nO.10.5 Protective circuit
O.10.8 Supply circuit on\/off switching device <\/td>\n<\/tr>\n
146<\/td>\nO.14 Mechanical provisions
O.14.1 General requirements
O.14.2 Enclosure
O.14.4 Drop withstand <\/td>\n<\/tr>\n
147<\/td>\nO.15 Rating plate
O.15.3 Contents <\/td>\n<\/tr>\n
149<\/td>\nO.17 Instructions and markings
O.17.1 Instructions <\/td>\n<\/tr>\n
150<\/td>\nO.17.2 Markings
Figure O.1 \u2013 Marking of battery voltage class B electric components <\/td>\n<\/tr>\n
151<\/td>\nBibliography <\/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>\n2018<\/td>\n154<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":275462,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-275456","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\/275456","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\/275462"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=275456"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=275456"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=275456"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}