1、Designation: F 1836M 97 (Reapproved 2007)An American National StandardStandard Specification forStuffing Tubes, Nylon, and Packing Assemblies (Metric)1This standard is issued under the fixed designation F 1836M; the number immediately following the designation indicates the year oforiginal adoption
2、or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the general requirements fornylon stuffing tubes a
3、nd packing assemblies. Nylon stuffingtubes are intended for making electric cable penetrations inmarine shipboard enclosures for electrical equipment. Thefollowing types are suitable for both thin-wall enclosures up to5mm(316 in.) thick and thick-wall enclosures, bulkheads, anddecks of 5 to 19 mm (3
4、16 to34 in.) thick.1.2 This specification does not cover metal stuffing tubes.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and deter
5、mine the applica-bility of regulatory limitations prior to its use.2. Referenced Documents2.1 ASTM Standards:2D 2000 Classification System for Rubber Products in Auto-motive ApplicationsD 4066 Classification System for Nylon Injection and Ex-trusion Materials (PA)2.2 NEMA Standards:Standard 250 Encl
6、osures for Electrical Equipment (1000 VMax)32.3 ASME Standard:ASME B1.1 Unified Inch Screw Threads (UN and UNRThread Form)42.4 IEC StandardStandard 68-2-6 Environmental TestingPart 2: TestsTestFC: Vibration (Sinusoidal) Sixth Edition53. Terminology3.1 Definitions of Terms Specific to This Standard:3
7、.1.1 nylon stuffng tube, na marine electrical fitting usedfor the sealing of cable penetration into shipboard enclosureswhile maintaining or exceeding the degree of protection forwhich the enclosure is rated.3.1.2 packing assembly, nthe compressible insert for thenylon stuffing tube. It consists of
8、one neoprene bushing andthree nylon washers.3.1.3 enclosure, nan electrical panel, cabinet, junctionbox, light fixture, electrical equipment, control box, or panel.4. Classification4.1 Nylon stuffing tubes shall be of the following types (seeFig. 1):4.1.1 Type 1straightUnified Form Thread.4.1.2 Type
9、 290Unified Form Thread.4.1.3 Type 3NPTAmerican Standard Pipe Thread.4.1.4 Type 4YUnified Form Thread.5. Ordering Information5.1 Orders for stuffing tubes under this specification shallinclude the following:5.1.1 Type (see 4.1).5.1.2 Part number (see Table 1).5.1.3 Packing assembly size (see Fig. 2
10、and Table 2).5.1.4 The O-ring included in the stuffing tube assembly hasa finite shelf life. If the stuffing tube assembly is used after theshelf life has expired, the O-ring should be replaced, using theappropriate size listed in Table 1.6. Materials and Manufacture6.1 Materials:6.1.1 Polyamide (ny
11、lon) molding plastic material shall beGroup 1, Class 8, Grade 1 in accordance with SpecificationD 4066.6.1.2 Synthetic rubber (neoprene) shall be in accordancewith Classification D 2000, M2, BC, 410, A14, B14, C12, andF19.6.2 Manufacture:6.2.1 Molded nylon parts, such as body, washers, locknut,and c
12、ap, shall meet the requirements specified herein.6.2.2 Threads shall be unified form UN 2A or 2B or taperpipe thread (NPT) as specified in ASME Standard B1.1.1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommi
13、ttee F25.10 onElectrical.Current edition approved May 1, 2007. Published June 2007. Originallyapproved in 1997. Last previous edition approved in 2002 as F 1836M - 97(2002).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For A
14、nnual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from National Electrical Manufacturers Association (NEMA), 1300N. 17th St., Suite 1752, Rosslyn, VA 22209, http:/www.nema.org.4Available from the International Electrotechnical
15、Commission, 3 rue deVarembe, Case postale 131, CH-1211, Geneva 20, Switzerland.5Available from American Society of Mechanical Engineers (ASME), ASMEInternational Headquarters, Three Park Ave., New York, NY 10016-5990, http:/www.asme.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C7
16、00, West Conshohocken, PA 19428-2959, United States.6.2.3 Neoprene parts, such as bushing and plug, shall meetthe requirements specified in Classification D 2000, and whenassembled in a stuffing tube, shall meet the performancerequirements specified herein.7. Other Requirements7.1 Performance Requir
17、ements:7.1.1 Vibration resistanceWhen stuffing tubes are testedas specified in 9.1, there shall be no evidence of cracking orloosening of parts.7.1.2 RuggednessWhen stuffing tubes are subjected to amechanical abuse test as specified in 9.2, there shall be nocracking, breaking, distortion, or damage
18、to the sample.7.1.3 Effectiveness of sealWhen stuffing tubes are testedas specified in 9.3, there shall be no evidence of leakagethrough or around the stuffing tubes.8. Workmanship, Finish, and Appearance8.1 Stuffing tubes shall be free from warp, cracks, chippededges or surfaces, blisters, uneven s
19、urfaces, scratches, dents,and heat marks. They shall be free from fins, burrs, andunsightly finish caused by chipping, filing, or grinding withoutsubsequent buffing or polishing. All molded nylon parts shallbe cleaned thoroughly of annealing mediums. Packing assem-blies shall be free of voids, pin h
20、oles, flash, or other imperfec-tions, that may impair their serviceability.FIG. 1 Stuffing Tube TypesF 1836M 97 (2007)29. Test Methods9.1 Conformance testing of a random sample may berequested by the purchaser to verify that selected performancecharacteristics specified herein have been incorporated
21、 in thestuffing tube design and maintained in production.9.1.1 VibrationThe stuffing tubes shall be subjected tovibration testing as specified in IEC Standard 68-2-6. Thefollowing details shall apply:9.1.1.1 The stuffing tubes shall be complete with O-ringsand 1- to 2-m (3- to 6-ft) lengths of cable
22、 of appropriate size.9.1.1.2 The free end of the cables shall be secured to preventexcessive cable whipping action during test.9.1.1.3 Tests are to be carried out in three perpendicularplanes.TABLE 1 Stuffing Tubes Part Numbers and Dimensional DataTube Part Cable Range Packing Clearance Hole Diamete
23、r O-RingSize No. in. mm AssemblyAfor Tube Install Buna-Nmin. max. min. max. in. mm Size1 Type-1-001 0.077 0.300 1.96 7.62 -16 0.885 22.48 2122 -002 0.275 0.472 6.99 11.99 -17 1.010 25.65 2143 -003 0.410 0.472 10.41 11.99 -18 1.135 28.83 216Straight 4 -004 0.450 0.777 11.43 19.74 -19 1.260 32.00 218T
24、ype 1 4T -005 0.450 0.777 11.43 19.74 -19 1.385 35.18 2205 -006 0.752 1.113 19.10 28.27 -20 2.010 51.05 2266 -007 0.806 1.390 20.47 35.31 -21 2.510 63.75 2307 -008 1.433 1.610 36.40 40.89 -22 2.760 70.10 2328 -009 1.625 2.00 41.28 50.80 -23 3.260 82.80 2369 -010 2.030 2.700 51.56 68.58 -24 4.010 101
25、.85 242Tube Part Cable Range Packing Clearance Hole Diameter O-RingSize No. in. mm AssemblyAfor Tube Install Buna-Nmin. max. min. max. in. mm Size1 Type-2-001 0.077 0.300 1.96 7.62 -16 0.885 22.48 21290 2 -002 0.275 0.472 6.99 11.99 -17 0.885 22.48 212Type 2 3 -003 0.410 0.472 10.41 11.99 -18 1.135
26、28.83 2164T -005 0.450 0.777 11.43 19.74 -19 1.260 32.00 2185 -006 0.752 1.113 19.10 28.27 -20 2.010 51.05 2206 -007 0.806 1.390 20.47 35.31 -21 2.510 63.75 230Tube Part Cable Range Packing NPTSize No. in. mm AssemblyAmin. max. min. max.1 Type-3-001 0.077 0.300 1.96 7.62 -16 0.52 -002 0.275 0.472 6.
27、99 11.99 -17 0.753 -003 0.410 0.472 10.41 11.99 -18 1.0NPT 4T -004 0.450 0.777 11.43 19.74 -19 1.0Type 3 5 -005 0.752 1.113 19.10 28.27 -20 1.56 -006 0.806 1.390 20.47 35.31 -21 27 -007 1.433 1.610 36.40 40.89 -22 2.58 -008 1.625 2.00 41.28 50.80 -23 39 -009 2.030 2.700 51.56 68.58 -24 3.5Tube Part
28、Cable Ranges Packing Clearance Hole Diameter O-RingSize No. in. mm AssemblyAfor Tube Install Buna-Nmin. max. min. max. in. mm Size1 Type-4-001 0.077 0.300 1.96 7.62 -16 0.885 22.48 212Y 2 -002 0.275 0.472 6.99 11.99 -17 1.010 25.65 214Type 4 3 -003 0.410 0.472 10.41 11.99 -18 1.135 28.83 2164T -004
29、0.450 0.777 11.43 19.74 -19 1.385 35.18 220ASee Table 2 size selection.FIG. 2 Typical Packing AssemblyF 1836M 97 (2007)39.1.1.4 Duration of the test for no resonance condition shallbe 90 min at 30 Hz. Duration at each resonance frequency atwhich Q 2 is recorded. It is recommended as guidance that Qd
30、oes not exceed 5.9.1.1.5 Test range shall be 2 6 0.3 Hz to 13.2 Hz amplitude 61 mm: 13.2 to 100 Hz acceleration 67g.9.1.1.6 Nonconformance to the requirements of 7.1.1 shallbe cause for rejection.9.2 Mechanical Abuse Test:9.2.1 Mechanical abuse test shall be conducted on thesample stuffing tubes ass
31、embled with packing assembly on theend of a 2-m (6-ft) length of electrical cable of appropriate size.9.2.2 The stuffing tube shall be allowed to swing on aradius, while suspended by the electrical cable, from a verticalsurface and strike against a vertical flat steel plate on thatsurface. The verti
32、cal distance through which the stuffing tube isallowed to fall shall be 1.5 m (5 ft), and the number of impactsshall be ten.9.2.3 The stuffing tube shall be disassembled and examined.Nonconformance to the requirements of 7.1.2 shall be cause forrejection.9.3 Level of EffectivenessA complete stuffing
33、 tube withO-ring installed and properly assembled to a cable or with aplug installed shall conform to the performance requirementsof NEMA 250. The NEMA enclosure-type designation (4, 4X,6, 6P) shall establish the appropriate environmental capability(see NEMA 250) required of the installed stuffing t
34、ube assem-bly.9.3.1 Nonconformance to the requirements of 7.1.3 shall because for rejection.10. Inspection10.1 Visual and Dimensional ExaminationSamples shallbe examined visually to verify that the materials, design,construction, physical dimensions, marking, and workmanshipare as specified in the a
35、pplicable requirements.11. Certification11.1 Plastic Material CertificationMaterial certificationshall be required from the manufacturer of the plastic materialto ensure the material was manufactured, sampled, tested, andinspected in accordance with Specification D 4066. Materialidentity, traceable
36、to this certification, shall be maintainedthroughout the manufacturing process.11.2 Cure date information of all rubber products shall berecorded on the manufacturers certificate of conformance. Theyear and quarter of manufacture shall be listed.11.3 When specified in the purchase order or contract,
37、 thepurchaser shall be furnished certification that samples repre-senting each lot have been either tested or inspected as directedTABLE 2 Packing Assembly SizeNOTE 1Packing assembly selection requires that the packing bushing inner diameter (D) be equal or slightly larger than the cable maximum dia
38、meter(DIA).NOTE 2I.D. column indicates the bushing inner diameter.Cable Range Cable Rangein. mm in. mmTube Part I.D. I.D. Tube Part I.D. I.D.Size No. min. max. min. max. Size No. min. max. min. max.16-001 0.137 0.187 3.48 4.75 21-001 1.119 1.159 28.42 29.44-002 0.077 0.127 1.96 3.23 -002 1.127 1.167
39、 28.63 29.641-003 0.100 0.150 2.54 3.81 -003 1.160 1.200 29.46 30.48-004 0.184 0.234 4.67 5.94 -004 1.204 1.254 30.58 31.85-005 0.228 0.278 5.79 7.066-005 1.255 1.305 31.89 33.15-006 0.244 0.300 6.20 7.62 -006 1.309 1.350 33.25 34.2917-001 0.275 0.325 6.99 8.26 -007 1.350 1.390 34.29 35.112-002 0.31
40、7 0.367 8.05 9.32 -008 0.856 0.886 21.74 22.50-003 0.340 0.390 8.64 9.91 -009 0.926 0.956 23.52 24.28-004 0.375 0.425 9.53 10.80 -010 0.776 0.806 19.71 20.47-005 0.422 0.472 10.72 11.99 22-001 1.418 1.458 36.02 37.033 18-018 0.410 0.472 10.41 11.997-002 1.460 1.500 37.08 38.1019-001 0.450 0.500 11.4
41、3 12.70 -003 1.510 1.566 38.35 39.78-002 0.497 0.547 12.62 13.89 -004 1.570 1.610 39.88 40.89-003 0.534 0.584 13.56 14.83 23-001 1.610 1.641 40.89 41.684 -004 0.559 0.609 14.20 15.47 -002 1.645 1.688 41.78 42.87and -005 0.610 0.665 15.49 16.89 -003 1.695 1.735 43.05 44.074T -006 0.650 0.700 16.51 17
42、.78 8 -004 1.745 1.812 44.32 46.03-007 0.669 0.719 16.99 18.26 -005 1.816 1.859 46.13 47.22-008 0.727 0.777 18.47 19.74 -006 1.860 1.906 47.24 48.41-009 0.710 0.760 18.03 19.30 -007 1.905 1.935 48.39 49.1520-001 0.737 0.777 18.72 19.74 -008 1.940 2.000 49.28 50.80-002 0.772 0.812 19.61 20.63 24-001
43、2.006 2.046 50.95 51.97-003 0.813 0.853 20.65 21.67 -002 2.050 2.093 52.07 53.16-004 0.849 0.889 21.57 22.58 -003 2.100 2.140 53.34 54.36-005 0.889 0.937 22.58 23.80 -004 2.150 2.285 54.61 58.045 -006 0.937 0.980 23.80 24.89 9 -005 2.295 2.385 58.29 60.05-007 0.981 1.021 24.92 25.93 -006 2.375 2.418
44、 60.33 61.42-008 1.000 1.042 25.40 26.47 -007 2.428 2.540 61.67 64.52-009 1.033 1.073 26.24 27.25 -008 2.560 2.700 65.02 68.58-010 1.073 1.113 27.25 28.27F 1836M 97 (2007)4in this specification and the requirements have been met. Whenspecified in the purchase order or contract, a report of the testr
45、esults shall be furnished.12. Product Marking12.1 Each nylon stuffing tube component body, locknut,cap, bushing, and washers shall have permanent marking in3-mm (18-in.) high raised letters as size permits. For size-sensitive components, reduced marking is acceptable. Markingshall indicate the follo
46、wing:12.1.1 Manufacturers name or trademark and tube size.12.1.2 Identification markings of prior or superseded speci-fications or government drawings. These markings are accept-able. New molds or molds that require rework shall contain, ifrequired, the ASTM designation number of this specificationa
47、nd part number. The location of the ASTM marking shallapply to the stuffing tube only and be located on the stuffingtube body. Marking in accordance with 12.1.1 shall apply to allstuffing tube components.13. Packaging13.1 Packaging shall be manufacturers commercial prac-tice and shall be sufficient
48、to afford adequate protection againstdeterioration and physical damage during shipment from themanufacturer or supplier, or both, to the using activity.NOTE 1Bulk packaging for nylon stuffing tubes; unit packaging forpacking assemblies.14. Quality Assurance14.1 Responsibility for InspectionUnless ot
49、herwise speci-fied in the contract or purchase order, the manufacturer isresponsible for the performance of all inspection requirementsas specified herein. Except as otherwise specified in thecontract or purchase order, the manufacturer may use his ownor any other facilities suitable for the performance of theinspection requirements specified.14.2 Responsibility for ComplianceAll items must meetall the requirements of Section 7. The inspection set forth inthis specification shall become a part of the manufacturersoverall inspection system or
