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UL 60974-1

SUPERSEDED

Subject 60974-1

UL Bulletin Published Date: April 30, 2004 Last Revision: September 28, 2015

Scope

uliec-60974-1.1

Arc Welding Equipment; Part 1: Welding Power Sources

UL 60974-1

1 Scope

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 that specified in table 1 of IEC 60038, or driven by mechanical means.This standard is not applicable to welding power sources for manual metal arc welding with limited duty operation which are designed mainly for use by laymen.This part of IEC 60974 specifies safety requirements for construction and performance requirements of welding power sources and PLASMA CUTTING SYSTEMS. - Typical allied processes are electric arc cutting and arc spraying. - This standard does not include electromagnetic compatibility (EMC) requirements.

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Summary of Topics m60974-1_1,551_7,_20040430_sum.html

Subject 60974-1 (551)

Bulletin Dated: April 30, 2004

SUMMARY OF TOPICS

This bulletin contains:

1. The comments received on UL's Subject 60974-1 (551) comment matrix dated May 14, 2003, and replies to those comments.

2. The following proposed revisions to UL 60974-1:
a) Revision to the requirements for engine powered rotating welding power sources.
b) Revision to add the word "terminal" to the national difference for wire connectors.

COMMENTS DUE: May 28, 2004

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