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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17、the sole and exclusive property of UL.This ANSI/UL Standard for Safety consists of the First Edition including revisions through January 12,2018. The most recent designation of ANSI/UL 486F as an American National Standard (ANSI)occurred on January 12, 2018. ANSI approval for a standard does not inc
18、lude 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) a
19、t https:/.To purchase UL Standards, visit ULs Standards Sales Site at http:/ or 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 Materia
20、ls 86.3 Flammability .86.4 Thermal properties 87 Test Requirements 87.1 General .87.2 Tensile test .8A7.3 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 Gene
21、ral .99.2 Tensile test .109.3 Mold stress test .109.4 Dielectric voltage withstand test .1010 Marking, Labeling, and Packaging 1010.1 General .10JANUARY 12, 2018 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 editi
22、onof CSA C22.2 No. 291 and the first edition of UL 486F. This harmonized standard has been jointly revisedon January 12, 2018.This harmonized standard was prepared by CSA Group and Underwriters Laboratories Inc. (UL). Theefforts and support of the Technical Harmonization Subcommittee, CANENA Technic
23、al HarmonizationCommittee 99 Electrical Connectors on the Harmonization of Electrotechnical Standards of the Nationsof 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 re
24、viewed by the CSA Subcommittee on Wiring Devices for Household 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 sta
25、ndard has been approved by the American National Standards Institute (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 appl
26、ication of this standard is stated in its scope, it is important 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 t
27、o, an IEC standard.This standard is published as an equivalent 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 thoser
28、ecognized 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 thatthe country considers appropriate. Presentation is word for word except for editoria
29、l changes.Reasons for differences from IECAt present there is no IEC standard for bare and covered ferrules. Therefore, this standard does notemploy any IEC standard for base requirements.InterpretationsThe interpretation by the standards development organization of an identical or equivalent standa
30、rd isbased on the 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 beenJANUARY 12, 2018CSA-C22.2 NO. 291-14 UL 486F4identified, a revision is to be proposed
31、 as soon as possible to each of the standards developmentorganizations to more accurately reflect the intent.JANUARY 12, 2018 CSA-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 Nationa
32、l Electrical Code, ANSI/NFPA-70 and Canadian Electrical Code, CSAC22.1.1.2 These ferrules are intended to facilitate the connection 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
33、 be used to attach to one stranded copper conductor or two stranded copperconductors of the same size.1.3 These ferrules are suitable for use with 1/0 20 AWG, 50 0.5 mm2, stranded copper conductors.1.4 These ferrules are intended to be terminated in wire connection devices rated for solid conductors
34、.1.5 Ferrules are not intended for use in IDC (insulation displacement connection) terminal blocks.1.6 This standard does not apply to wire 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 Standa
35、rds, such reference shall be considered to refer to the latesteditions and revisions thereto available at the time of printing, unless otherwise 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 Materials
36、JANUARY 12, 2018CSA-C22.2 NO. 291-14 UL 486F62.1.2 UL StandardsUL 94Tests for Flammability of Plastic Materials for Parts in Devices and AppliancesUL 746CPolymeric Materials Use in Electrical Equipment Evaluations2.1.3 NFPA* StandardANSI/NFPA 70-2011,National Electrical Code (NEC)*National Fire Prot
37、ection Association3 Units of Measurement3.1 The values given in SI (metric) units shall be normative, except for AWG conductor sizes. Any othervalues given are for information only.4 DefinitionsFor the purpose of this Standard, the following terms and definitions apply.4.1 Covered Encased within mat
38、erial of composition or thickness that is not recognized as electricalinsulation.4.1A Covered ferrule A ferrule provided with a plastic sleeve.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-con
39、ductive plastic material used for identification purposes. The termcovering is also referred to in the Standard as a plastic sleeve.5 Symbols 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 b
40、e provided with one opening to accept one or two stranded type copper conductorsapplied with compression tooling.AUGUST 7, 2015 CSA-C22.2 NO. 291-14 UL 486F 76.1.2 A ferrule shall comply with the dimensional requirements in Tables15andFigures15.Intermediate lengths and longer lengths are permissible
41、.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 sleeve shall be colored as defined in Tables 4 and 5.6.3 Flammability6.3.1 The covering material shall comply with one of the following requirements for flammabili
42、ty:a) Have a minimum flammability classification of HB as determined by tests described in UL 94or CAN/CSA-C22.2 No. 0.17. This flammability classification may be determined at theminimum thickness employed in the construction or a nominal thickness of 0.8 mm (0.031 in),whichever is greater.b) Meet
43、the glow wire test as specified in UL 746C or CSA C22.2 No 0.17 for a temperature of650C, orc) Be evaluated and classed with a flammability rating of SC-0, SC-1, SC-TC 0, or SC-TC 1 inaccordance with the Standard for Tests for Flammability of Small Polymeric ComponentMaterials, UL 1694.6.4 Thermal p
44、roperties6.4.1 A polymeric material used for covering shall have a minimum 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 electri
45、cal RTI value maybe determined regardless of the color used for the plastic 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.JANUARY 12, 2018CSA-C22.2 NO. 291-14 UL
46、486F87.2 Tensile test7.2.1 During testing in accordance with 9.2, the conductor shall not visibly move (with normal or correctedto normal vision) within the ferrule or be pulled out of the ferrule.7.3 Mold stress relief7.3.1 As a result of conditioning as specified in 9.3, there shall not be any war
47、page, shrinkage, or otherdistortion that results in interference with the operation, function, or installation of the device.JANUARY 12, 2018 CSA-C22.2 NO. 291-14 UL 486F 8AJANUARY 12, 2018CSA-C22.2 NO. 291-14 UL 486F8BNo Text on This PageUpdate No. 1C22.2 No. 291-14August 2015Note: For information
48、about the Standards Update Service, go to shop.csa.ca or e-mail techsupportcsagroup.org.Title: Bare and covered ferrules originally published March 2014The following revisions have been formally approved and are marked by the symbol delta () in the margin on the attached replacement pages:Revised Title page, Copyright page, Preface, and Clauses 4.3, 6.3.1, and 6.4.1New Clause 4.1A Deleted None Update your copy by inserting these revised pages.Keep the pages you remove for reference.Canadian Standards AssociationCSA-C22.2 No. 291-14First EditionUnderwriters Laboratories Inc.UL 486FFirst Editio
