UL UL 5B ⑧ Underwriters Laboratories Inc . Standard for Safety Strut-Type Channel Raceways and Fittings This PDF Standard downloaded from . . uLY29,2009 UL 5B UL Standard for Safety for Strut-Type Channel Raceways and Fittings ,UL 5B Second Edition ,Dated April 14 ,2004 Summary of Topics The following revision being issued for UL 5B : Correction to Table 14.1 ,Maximum resistance of individual sections and fittings Text that has been changed in any manner or impacted by UL's electronic publishing system is marked with a vertical line in the margin .Changes in requirements are marked with a vertical line in the margin and are followed an effective date note indicating the date of publication or the date on which the changed requirement bees effective The revised requirements are substantially accordance with Proposal (s)onthis subject dated May 22 2009. All rights reserved .No part of this publication may be reproduced ,stored in a retrieval system ,or transmitted in any form by any means ,electronic ,mechanical photocopying ,recording ,or otherwise without prior permission of UL . UL provides this Standard " asis "without warranty of any kind ,either e...