《UL_1678》.pdfVIP

UL 1678 ISBN 0-7629-0729-0 Household, Commercial, and Professional-Use Carts and Stands for Use with Audio/ Video Equipment SEPTEMBER 16, 2003 − UL 1678 tr1 Underwriters Laboratories Inc. (UL) 333 Pfingsten Road Northbrook, IL 60062-2096 UL Standard for Safety for Household, Commercial, and Professional-Use Carts and Stands for Use with Audio/Video Equipment, UL 1678 Fourth Edition, Dated December 21, 2001 Revisions: This Standard contains revisions through and including September 16, 2003. SUMMARY OF TOPICS This revision is being issued to incorporate revised supporting surface loading and marking requirements. UL Standards for Safety are developed and maintained in the Standard Generalized Markup Language (SGML). SGML -- an international standard (ISO 8879-1986) -- is a descriptive markup language that describes a document’s structure and purpose, rather than its physical appearance on a page. Due to formatting differences resulting from the use of UL’s new electronic publishing system, please note that additional pages (on which no requirements have been changed) may be included in revision pages due to relocation of existing text and reformatting of the Standard. Text that has been changed in any manner is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective date note indicating the date of publication or the date on which the changed requirement becomes effective. The new and/or revised requirements are substantially in accordance with UL’s Bulletin(s) on this subject dated May 21, 2003 and August 8, 2003. The bulletin(s) is now obsolete and may be discarded. The revisions dated September 16, 2003 include a reprinte