电弧焊接设备 - 第5部分:送丝机

[中文适用范围]： IEC 60974-5 规定了用于电弧焊及相关工艺（如电弧切割和电弧喷涂）的工业和专业设备的送丝机的安全及性能要求。 本标准适用于独立式送丝机以及与焊接设备同置于一个外壳内或与其他焊接设备同置于一个外壳内的送丝控制系统。送丝机适用于手动或机械引导的焊枪。 本标准不适用于喷枪式送丝装置（此类产品由 IEC 60974-7 覆盖）。 [外文原描述]： IEC 60974-5:2019 specifies safety and performance requirements for industrial and professional equipment used in arc welding and allied processes to feed filler wire. This document is applicable to wire feeders and to wire-feed controls that are stand-alone (separate from the welding equipment), housed together in a single enclosure or housed in a single enclosure with other welding equipment. The wire feeder can be suitable for manually or mechanically guided torches. This fourth edition cancels and replaces the third edition published in 2013 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - changes induced by the publication of IEC 60974-1:2017; - addition of requirements for welding circuit connections in 6.9; - clarification of requirements and conformity in 6.3.1; - clarification of thermal requirements in Clause 9; - addition of requirements in relation to abnormal operation in Clause 10. This International Standard is to be used in conjunction with IEC 60974-1:2017.