【UL标准】UL 467Standard for Grounding and Bonding Equipment.doc

UL 467Grounding and BondingEquipmentUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULThis PDF Standard downloaded from SEPTEMBER 21, 2007 UL 467tr1Underwriters Laboratories Inc. (UL)333 Pfingsten RoadNorthbrook, IL 60062-2096UL Standard for Safety for Grounding and Bonding Equipment, UL 467Ninth Edition, Dated September 21, 2007Summary of TopicsThis new edition of ANSI/UL 467 harmonizes UL and CSA requirements for grounding and bonding equipment. The following summarizes the changes: This new edition has been reorganized to be consistent with the harmonized standards for Wire Connectors (UL 486A-486B) and Splicing Wire Connectors (UL 486C), for specific tests applicable to grounding and bonding equipment; Minimum sample requirements for testing have been clarified and organized into a new section; Short time test current table has been expanded to include smaller and larger wire sizes, aluminum conductors, and a formula was added for additional sizes; Flammability requirements for throat liners realigned to correspond with related requirements in the Standard for Conduit, Tubing, and Cable Fittings, UL 514B; The section on ground rod electrodes was reorganized and aligned with present practices and allowances; and The markings on ground clamps are more detailed, including those for re-bar.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 documents structure and purpose, rather than its physical appearance on a page. Due to formatting differences resulting from the use of ULs 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.The new and revised requirements are substantially in accordance with ULs Proposal(s) on this subject dated September 15, 2006 and February 9, 2007.As indicated on the title page (page 1), this UL Standard for Safety is an American National Standard. Attention is directed to the note on the title page of this Standard outlining the procedures to be followed to retain the approved text of this ANSI/UL Standard.The UL Foreword is no longer located within the UL Standard. For information concerning the use and application of the requirements contained in this Standard, the current version of the UL Foreword is located on ULStandardsInfoNet at: New product submittals made prior to a specified future effective date will be judged under all of the requirements in this Standard including those requirements with a specified future effective date, unless the applicant specifically requests that the product be judged under the current requirements. However, ifUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULtr2SEPTEMBER 21, 2007 UL 467This PDF Standard downloaded from the applicant elects this option, it should be noted that compliance with all the requirements in this Standard will be required as a condition of continued Listing and Recognition and Follow-Up Services after the effective date, and understanding of this should be signified in writing.Copyright © 2007 Underwriters Laboratories Inc.This Standard consists of pages dated as shown in the following checklist:PageDate1-42 . September 21, 2007Canadian Standards AssociationCSA C22.2 No. 41-07Fifth EditionUnderwriters Laboratories Inc. UL 467Ninth EditionGrounding and Bonding EquipmentSeptember 21, 2007UL COPYRIGHTED MATERIAL ANNSIO/ULT4A67U-2T00H7ORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULThis PDF Standard downloaded from Commitment for AmendmentsThis standard is issued jointly by the Canadian Standards Association (CSA) and Underwriters Laboratories Inc. (UL). Comments or proposals for revisions on any part of the standard may be submitted to CSA or UL at any time. Revisions to this standard will be made only after processing according to the standards development procedures of CSA and UL. CSA and UL will issue revisions to this standard by means of a new edition or revised or additional pages bearing their date of issue.ISBN 1-55436-022-6© 2007Canadian Standards AssociationAll rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher.To purchase CSA Standards and related publications, visit CSAs Online Store at www.ShopCSA.caor call toll-free 1-800-463-6727 or 416-747-4044.Copyright © 1978, 2007 Underwriters Laboratories Inc.Revisions of this Standard will be made by issuing revised or additional pages bearing their date of issue. A UL Standard is current only if it incorporates the most recently adopted revisions, all of which are itemized on the transmittal notice that accompanies the latest set of revised requirements. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at .The most recent designation of ANSI/UL 467 as an American National Standard (ANSI) occurred onSeptember 21, 2007.This ANSI/UL Standard for Safety, which consists of the Ninth edition is under continuous maintenance, whereby each revision is ANSI approved upon publication.The Department of Defense (DoD) has adopted UL 467 on June 12, 1987. The publication of revised pages or a new edition of this Standard will not invalidate the DoD adoption.SEPTEMBER 21, 2007CSA C22.2 NO. 41-07UL 46741CONTENTSPreface . .51 Scope . .72 Reference publications . .73 Units of measurement . .94 Definitions . .95 Components . .96 Construction . .106.1 General . .106.2 Protective-type ground clamps . .116.3 Protection against corrosion . .126.4 Ground clamps . .136.5 Bushings . .146.6 Fittings . .156.7 Water-meter shunts . .156.8 Armored grounding wire . .156.9 Grounding electrodes . .166.10 Ground mesh . .186.11 Miscellaneous devices . .187 Test requirements . .187.1 Wire connectors . .187.2 Tightening force for ground clamps . .197.3 Pull protective-type ground clamp . .197.4 Flammability throat liners . .197.5 Short-time current . .197.6 Thickness of protective coating . .207.7 Rod electrodes . .207.8 Coating integrity . .207.9 Temperature conditioning (communications strap-type clamp) . .208 Sampling requirements . .208.1 Wire connectors . .208.2 Tightening force for ground clamps . .218.3 Pull protective-type ground clamp . .218.4 Flammability throat liners . .218.5 Short-time current . .218.6 Thickness of protective coating . .218.7 Rod electrodes . .218.8 Coating integrity . .228.9 Temperature conditioning (communications strap-type clamp) . .229 Test methods . .229.1 Wire connectors . .229.2 Tightening force for ground clamps . .229.3 Pull protective-type ground clamp . .229.4 Flammability throat liners . .239.5 Short-time current . .249.6 Thickness of protective coating . .259.7 Rod electrodes . .269.8 Coating integrity . .279.9 Temperature conditioning (communications strap-type clamp) . .2710 Marking, labeling, and packaging . .27UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULThis PDF Standard downloaded from Annex A (Normative United States only) Hospital Grounding EquipmentA.1 General . .37A.2 Construction . .37A.2.1 Cord . .37A.2.2 Field-wiring terminals and leads . .37A.2.3 Grounding jacks . .38A.2.4 Samples . .38A.3 Performance . .38A.3.1 Contact resistance . .38A.3.2 Endurance . .38A.3.3 Strain relief . .39A.3.4 Flame resistance . .39A.3.5 Dielectric voltage withstand . .39A.3.6 Accelerated aging . .40A.4 Marking . .40Annex B (informative) French translations and markings (See Clause 10.)PrefaceThis is the common CSA and UL standard for grounding and bonding equipment. It is the fifth edition of CSA C22.2 No. 41 and the ninth edition of UL 467. This edition of CSA C22.2 No. 41 supersedes the previous edition published in 1987. This edition of UL 467 supersedes the previous edition published in2004.This common standard was prepared by the Canadian Standards Association (CSA) and Underwriters Laboratories Inc. (UL). The efforts and support of the Technical Harmonization Committee for Connectors, of the Council on the Harmonization of Electrotechnical Standards of the Nations of the Americas (CANENA), are gratefully acknowledged.This Standard is considered suitable for use for conformity assessment within the stated scope of theStandard.This standard was reviewed by the CSA Integrated Committee on Electrical Connectors, under the jurisdiction of the CSA Technical Committee on Wiring Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the CSA Technical Committee.This standard will be submitted to the Standards Council of Canada (SCC) for approval as a NationalStandard of Canada.This standard has been approved by the American National Standards Institute (ANSI) as an AmericanNational Standard.Where reference is made to a specific number of samples to be tested, the specified number is to be considered a minimum quantity.Note: Although the intended primary application of this standard is stated in its scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitability for their particular purpose.Level of harmonizationThis standard uses the IEC format but is not based on, nor is it considered equivalent to, an IEC standard. This standard is published as an equivalent standard for CSA and UL.An equivalent standard is a standard that is substantially the same in technical content, except as follows: Technical national differences are allowed for codes and governmental regulations as well as those recognized as being in accordance with NAFTA Article 905, for example, because of fundamental climatic, geographical, technological, or infrastructural factors, scientific justification, or the level of protection that the country considers appropriate. Presentation is word for word except for editorial changes.Reasons for differences from IECThe Technical Harmonization Committee identified one IEC standard, IEC 60364-5-54, that addresses grounding and bonding equipment included in the scope of this Standard, Electrical ins