AS 60974.1 pdf download
AS 60974.1 pdf download.Arc welding equipment
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60050-1 51 , 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 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 to entry: 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 to entry: This entry revises IEV 851 -1 3-01 , 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 -1 1 -1 2] 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 1 to entry: 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 -1 1 -1 0] 3.1 .4 instructed person person informed about the tasks assigned and about the possible hazards involved in neglectful behaviour Note 1 to entry: If necessary, the person has undergone some training. [SOURCE: IEC 60050-851 :2008, 851 -1 1 -1 3] 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 -1 2-05] 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 -1 2-06] 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 -1 1 -1 1 ] 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 7 V/1 00 A Note 1 to entry: This entry revises IEV 851 -1 2-34, 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 7 V/1 00 A or increases by less than 1 0 V/1 00 A [SOURCE: IEC 60050-851 :2008, 851 -1 2-35] 3.1 .1 0 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 1 to entry: This entry revises IEV 851 -1 2-32, which will be updated. 3.1 .1 1 welding circuit conductive material through which the welding current is intended to flow Note 1 to entry: In arc welding, the arc is a part of the welding circuit. Note 2 to entry: 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 -1 4-1 0] 3.1 .1 2 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 1 to entry: This entry revises IEV 851 -1 4-1 1 , which will be updated.
