1、C22.2 No. 291-14Bare and covered ferrulesLegal Notice for StandardsCanadian Standards Association (operating as “CSA Group”) develops standards through a consensus standards development process approved by the Standards Council of Canada. This process brings together volunteers representing varied v
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16、63-6727 or 416-747-4044.Copyright 2015 Underwriters Laboratories Inc.ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standardshould be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regardingthose Standards shall remain
17、the sole and exclusive property of UL.This ANSI/UL Standard for Safety consists of the First Edition including revisions through August 7,2015. The most recent designation of ANSI/UL 486F as an American National Standard (ANSI)occurred on August 7, 2015. ANSI approval for a standard does not include
18、 the Cover Page,Transmittal Pages, Title Page (front and back), or the Preface.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 StandardsDevelopment System (CSDS) at ht
19、tp:/.To purchase UL Standards, visit Comm 2000 at http:/m- call toll-free 1-888-853-3503.CONTENTSPreface .41 Scope .62 Reference Publications 62.1 Normative references .63 Units of Measurement .74 Definitions 75 Symbols and Abbreviations 76 Construction 76.1 General .76.2 Materials 86.3 Flammability
20、 .86.4 Thermal properties 87 Test Requirements 87.1 General .87.2 Tensile test 87.3 Mold stress relief 8A7.4 Dielectric voltage-withstand 98 Sampling Requirements .98.1 General .98.2 Tensile test 98.3 Mold stress test 98.4 Dielectric voltage-withstand 99 Test Methods .99.1 General .99.2 Tensile test
21、 .109.3 Mold stress test .109.4 Dielectric voltage withstand test .1010 Marking, Labeling, and Packaging 1010.1 General .10AUGUST 7, 2015 CSA-C22.2 NO. 291-14 UL 486F 3PrefaceThis is the harmonized CSA Group and UL standard for Bare and Covered Ferrules. It is the first editionof CSA C22.2 No. 291 a
22、nd the first edition of UL 486F. This harmonized standard has been jointly revisedon August 7, 2015.This harmonized standard was prepared by the CSA Group and Underwriters Laboratories Inc. (UL). Theefforts and support of the Technical Harmonization Committee for Connectors, of the Council on theHar
23、monization of Electrotechnical Standards of the Nations of the Americas (CANENA), are gratefullyacknowledged.This Standard is considered suitable for use for conformity assessment within the stated scope of theStandard.This standard was reviewed by the CSA Subcommittee on Wiring Devices for Househol
24、d and GeneralUse, under the jurisdiction of the CSA Technical Committee on Wiring Products and the CSA StrategicSteering Committee on Requirements for Electrical Safety, and has been formally approved by the CSATechnical Committee.This standard has been approved by the American National Standards In
25、stitute (ANSI) as an AmericanNational Standard.Application of StandardWhere reference is made to a specific number of samples to be tested, the specified number is to beconsidered a minimum quantity.Note: Although the intended primary application of this standard is stated in its scope, it is import
26、ant to note that it remainsthe 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 equivalen
27、t standard for CSA Group 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 thoserecognized as being in accordance with NAFTA Article 905, for
28、example, because of fundamental climatic,geographical, technological, or infrastructural factors, scientific justification, or the level of protection thatthe country considers appropriate. Presentation is word for word except for editorial changes.Reasons for differences from IECAt present there is
29、 no IEC standard for bare and covered ferrules. Therefore, this standard does notemploy any IEC standard for base requirements.AUGUST 7, 2015CSA-C22.2 NO. 291-14 UL 486F4InterpretationsThe interpretation by the standards development organization of an identical or equivalent standard isbased on the
30、literal text to determine compliance with the standard in accordance with the proceduralrules of the standards development organization. If more than one interpretation of the literal text has beenidentified, a revision is to be proposed as soon as possible to each of the standards developmentorgani
31、zations to more accurately reflect the intent.CSA Effective DateThe effective date for CSA International will be announced through CSA Informs or a CSA certificationnotice.UL Effective DateA UL effective date is one established by UL LLC and is not part of the ANSI approved standard.AUGUST 7, 2015 C
32、SA-C22.2 NO. 291-14 UL 486F 51 Scope1.1 These requirements cover bare and covered ferrules intended for field wiring and factory wiring foruse in accordance with the National Electrical Code, ANSI/NFPA-70 and Canadian Electrical Code, CSAC22.1.1.2 These ferrules are intended to facilitate the connec
33、tion of stranded wire on to devices, such asterminal blocks. Their purpose is to treat stripped wire and prevent turned back strands during installation.They are intended to be used to attach to one stranded copper conductor or two stranded copperconductors of the same size.1.3 These ferrules are su
34、itable for use with 1/0 20 AWG stranded copper conductors.1.4 These ferrules are intended to be terminated in wire connection devices rated for solid conductors.1.5 Ferrules are not intended for use in IDC (insulation displacement connection) terminal blocks.1.6 This standard does not apply to wire
35、connectors such as pin adapters covered in CSA C22.2 No. 65or UL 486A-486B.2 Reference Publications2.1 Normative referencesWhere reference is made to any Standards, such reference shall be considered to refer to the latesteditions and revisions thereto available at the time of printing, unless other
36、wise specified.2.1.1 CSA StandardsC22.1-12Canadian Electrical Code, Part I (CEC)CAN/CSA-C22.2 No. 0.17-00 (R2009)Evaluation of Properties of Polymeric MaterialsMARCH 21, 2014CSA-C22.2 NO. 291-14 UL 486F62.1.2 UL StandardsUL 94Tests for Flammability of Plastic Materials for Parts in Devices and Appli
37、ancesUL 746CPolymeric Materials Use in Electrical Equipment Evaluations2.1.3 NFPA* StandardANSI/NFPA 70-2011,National Electrical Code (NEC)*National Fire Protection Association3 Units of Measurement3.1 The values given in SI (metric) units shall be normative, except for AWG conductor sizes. Any othe
38、rvalues given are for information only.4 DefinitionsFor the purpose of this Standard, the following terms and definitions apply.4.1 Covered Encased within material of composition or thickness that is not recognized as electricalinsulation.4.1A Covered ferrule A ferrule provided with a plastic sleeve
39、.4.2 Ferrule A conductive sleeve used to facilitate the termination of stranded wire in devices used toterminate solid conductors.4.3 Plastic sleeve A non-conductive plastic material used for identification purposes. The termcovering is also referred to in the Standard as a plastic sleeve.5 Symbols
40、and Abbreviations5.1 Degree5.2 AWG American Wire Gage/gauge5.3 C Celsius5.4 mm2 Squared millimeters5.5 V Volts6 Construction6.1 General6.1.1 A ferrule shall be provided with one opening to accept one or two stranded type copper conductorsapplied with compression tooling.AUGUST 7, 2015 CSA-C22.2 NO.
41、291-14 UL 486F 76.1.2 A ferrule shall comply with the dimensional requirements in Tables15andFigures15.Intermediate lengths and longer lengths are permissible.6.2 Materials6.2.1 A ferrule shall be of copper or a copper alloy containing at least 80% copper and be coated with tin.6.2.2 A plastic sleev
42、e shall be colored as defined in Tables 4 and 5.6.3 Flammability6.3.1 The covering material shall have a minimum flammability classification of HB as determined by testsdescribed in UL 94 or CAN/CSA-C22.2 No. 0.17. As an alternative, the covering shall meet the glow wiretest as specified in UL 746C
43、or CSA C22.2 No 0.17 for a temperature of 650 C. This flammabilityclassification may be determined at the minimum thickness employed in the construction or a nominalthickness of 0.8 mm (0.031 in), whichever is greater.6.4 Thermal properties6.4.1 A polymeric material used for covering shall have a mi
44、nimum relative thermal index (RTI) of 80 C(176F) (electrical only). The material shall be evaluated using the specimen thickness employed in thecovering or a nominal thickness of 0.8 mm (0.031 in), whichever is greater. The electrical RTI value maybe determined regardless of the color used for the p
45、lastic sleeve.7 Test Requirements7.1 General7.1.1 All ferrules shall comply with the test requirements in 7.2. Covered ferrules shall additionally complywith the test requirements in 7.3 7.4.7.2 Tensile test7.2.1 During testing in accordance with 9.2, the conductor shall not visibly move (with norma
46、l or correctedto normal vision) within the ferrule or be pulled out of the ferrule.AUGUST 7, 2015CSA-C22.2 NO. 291-14 UL 486F87.3 Mold stress relief7.3.1 As a result of conditioning as specified in 9.3, there shall not be any warpage, shrinkage, or otherdistortion that results in interference with t
47、he operation, function, or installation of the device.AUGUST 7, 2015 CSA-C22.2 NO. 291-14 UL 486F 8AAUGUST 7, 2015CSA-C22.2 NO. 291-14 UL 486F8BNo Text on This PageStandards Update ServiceC22.2 No. 291-14March 2014Title: Bare and covered ferrulesPagination: 20 pages, each dated March 2014To register
48、 for e-mail notification about any updates to this publicationgo to shop.csa.caclick on CSA Update ServiceThe List ID that you will need to register for updates to this publication is 2422689.If you require assistance, please e-mail techsupportcsagroup.org or call 416-747-2233.Visit CSA Groups polic
49、y on privacy at csagroup.org/legal to find out how we protect your personal information.CSA GroupCSA-C22.2 No. 291-14First EditionUnderwriters Laboratories Inc.UL 486FFirst EditionBare and Covered FerrulesMarch 21, 2014ANSI/UL 486F-2014Commitment for AmendmentsThis standard is issued jointly by the Cana
