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

Subject 60974-1 (551)

Bulletin Dated: May 14, 2003

SUMMARY OF TOPICS

This bulletin contains:

1. The comments received on UL's Subject 60974-1 (551) industry bulletin dated September 13, 2002, and our replies to those comments.

2. The following proposed revisions to UL 60974-1:

a) Revision to replace the term "class A" with "class 105"

b) Revision to add requirements for air-cooled mechanically driven, engine powered rotating welding power sources

c) Revision to allow all suitable types of wire connectors

COMMENTS DUE: June 11, 2003

Subject 60974-1 (551)

Bulletin Dated: September 13, 2002

SUMMARY OF TOPICS

This bulletin includes the latest draft of the proposed first edition of the UL/IEC Harmonized Standard for Arc Welding Equipment; Part 1: Welding Power Sources, UL 60974-1.

STP BALLOTS AND ALL COMMENTS DUE: November 12, 2002