1、Designation:F1837M97(Reapproved 2012)1An American National StandardStandard Specification forHeat-Shrink Cable Entry Seals(Metric)1This standard is issued under the fixed designation F1837M;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revi
2、sion,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEReapproved with editorial changes in October 2012.1.Scope1.1 This specification covers the general requirements
3、forheat-shrink cable entry seals.Cable entry seals are intended formaking electrical cable penetrations into connection boxes,bulkheads,or other enclosures.These devices are suitable forboth thin wall enclosures up to 5 mm(316in.)thick andthick-wall enclosures of 5 mm to 19 mm(316in.to34in.)thick.1.
4、2 Cable entry seals shall have factory-applied adhesivethat provides the seal to wire and cable jackets.1.3 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.4 This standard does not purport to address all of thesafety concerns,
5、if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to its use.2.Referenced Documents2.1 ASTM Standards:2D149 Test Method for Dielectric Breakdown Vo
6、ltage andDielectric Strength of Solid Electrical Insulating Materialsat Commercial Power FrequenciesD257 Test Methods for DC Resistance or Conductance ofInsulating MaterialsD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD570 Test Method for Water Absorption of PlasticsD6
7、35 Test Method for Rate of Burning and/or Extent andTime of Burning of Plastics in a Horizontal PositionD747 Test Method for Apparent Bending Modulus of Plas-tics by Means of a Cantilever BeamD792 Test Methods for Density and Specific Gravity(Rela-tive Density)of Plastics by DisplacementD2240 Test M
8、ethod for Rubber PropertyDurometer Hard-nessD2671 Test Methods for Heat-Shrinkable Tubing for Elec-trical UseD2863 Test Method for Measuring the Minimum OxygenConcentration to Support Candle-Like Combustion ofPlastics(Oxygen Index)D3149 Specification for Crosslinked Polyolefin Heat-Shrinkable Tubing
9、 for Electrical InsulationD4572 Test Method for Rubber ChemicalsWet SieveAnalysis of SulfurD4732 Specification for Cool-Application Filling Com-pounds for Telecommunications Wire and Cable2.2 ASME StandardASME B1.1 Unified Inch Screw Threads(UN and UNRThread Form)32.3 NEMA Standards:4NEMA250 Enclosu
10、res for Electrical Equipment(1000 VoltsMax)2.4 IEC Standard:IEC 68-2-6 Environmental TestingPart 2:TestsTest FC:Vibration(Sinusoidal)Sixth Edition53.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 heat-shrink cable entry seal,nheat-shrinkable tubemaking a watertight,fume-tight se
11、al where cable connectionsboxes,bulkheads,or other enclosures.3.1.2 polyolefin,na polymer made by the polymerizationof hydrocarbon olefins or copolymerization olefins.1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technologyand is the direct responsibility of
12、Subcommittee F25.10 onElectrical.Current edition approved Oct.1,2012.Published October 2012.Originallyapproved in 1997.Last previous edition approved in 2007 as F1837M-97(2007).DOI:10.1520/F1837M-97R12E01.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Serv
13、ice at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Three Park Ave.,New York,NY 10016-5990,http:/www.asme.org.4Availabl
14、e from National Electrical Manufacturers Association(NEMA),1300N.17th St.,Suite 1752,Rosslyn,VA 22209,http:/www.nema.org.5Available from International Electrotechnical Commission(IEC),3,rue deVarembe,Case Postale 131,CH-1211,Geneva 20,Switzerland.Copyright ASTM International,100 Barr Harbor Drive,PO
15、 Box C700,West Conshohocken,PA 19428-2959.United States1 4.Classification4.1 Heat-shrink cable entry seals shall be of the followingtypes:4.1.1 Type 1,standard cable entry seals for thin-wall enclo-sures shall consist of the three part assembly;a rigid plasticnut,O-ring,and heat-shrinkable molded ar
16、ea.4.1.1.1 Type I1,molded area configured with one openingfor a single wire or cable entry.4.1.1.2 Type I2,molded area configured with two equalsize openings to seal two wires or cables.4.1.1.3 Type I3,molded area configured with three equalsize openings to seal three wires or cables.4.1.1.4 Type I4,molded area configured with four equalsize openings to seal four wires or cables.4.1.1.5 Type I5,molded area configured with six equal sizeopenings to seal six wires or cables.4.1.1.6 Type I6,molded
