1、Designation: D 4388 08An American National StandardStandard Specification forNonmetallic Semi-Conducting and Electrically InsulatingRubber Tapes1This standard is issued under the fixed designation D 4388; the number immediately following the designation indicates the year oforiginal adoption or, in
2、the case of revision, 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.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 Th
3、is specification covers nonmetallic semi-conductingand electrical insulating tapes designed for the splicing andrepair of electrical wire and cables operating at voltages up to325 kV, phase to phase.1.2 The SI values are the standard. The values stated ininch-pound units given in parentheses are for
4、 informationpurposes only.2. Referenced Documents2.1 ASTM Standards:2D 4325 Test Methods for Nonmetallic Semi-Conductingand Electrically Insulating Rubber Tapes3. Classification3.1 Types:3.1.1 Type IAlow voltage rubber insulating tape designedfor use on wires and cables operating up to 2000 V phase
5、tophase in dry locations with conductor temperatures up to 80 C(176 F) for continuous operation, up to 95 C (203 F) foremergency overload conditions, and up to 150 C (302 F) forshort-circuit conditions. For outdoor use, protect the tape fromozone attack and ultraviolet radiation by the use of a suit
6、ableoverwrap. Apply the tape to the wire or cable within anambient temperature range of 10 and 40 C (14 and 104 F).3.1.2 Type IIA medium voltage, ozone-resistant, rubberinsulating tape designed for use with wires and cables operat-ing up to 35 000 V phase to phase in either wet or drylocations with
7、conductor temperatures up to 90 C (194 F) forcontinuous operation, up to 130 C (266 F) for emergencyoverload conditions, and up to 250 C (482 F) for short-circuitconditions when installed in accordance with the manufactur-ers instruction. For wet or dry outdoor use, protect the tapefrom ultraviolet
8、radiation by the use of a suitable overwrap.Apply the tape to the wire or cable within an ambienttemperature range of 10 and 40 C (14 and 104 F).3.1.3 Type IIIA high voltage, ozone-resistant, rubber in-sulating tape designed for use with wires and cables operatingup to 138 000 V phase to phase in ei
9、ther wet or dry locationswith conductor temperatures up to 90 C (194 F) for continu-ous operation, up to 130 C (266 F) for emergency overloadconditions, and up to 250 C (482 F) for short-circuitconditions when installed in accordance with the manufactur-ers instructions. This tape is suitable for we
10、t or dry outdooruse. Apply the tape to the wire or cable within an ambienttemperature range of 10 and 40 C (14 and 104 F).3.1.4 Type IVA nonmetallic semi-conducting tape de-signed for shielding various portions of joints and terminationsin electrical wires and cables operating at any voltage underwe
11、t or dry conditions with conductor temperatures up to 90 C(194 F) for continuous operation, or up to 130 C (266 F) foremergency overload conditions. This tape is suitable for wet ordry outdoor use. Apply the tape to the wire or cable within anambient temperature range of 10 and 40 C (14 and 104 F).3
12、.1.5 Type VA higher voltage, ozone-resistant, rubberinsulating tape designed for use with wires and cables operat-ing up to 325 000 V phase to phase in either wet or drylocations with conductor temperatures up to 90 C (194 F) forcontinuous operation, up to 130 C (266 F) for emergencyoverload, and up
13、 to 250 C (482 F) short-circuit conditionswhen installed in accordance with the manufacturers instruc-tions.This tape is suitable for wet or dry outdoor use.Apply thetape to the wire or cable within an ambient temperature of 10and 40 C (14 and 104 F).4. Physical Properties4.1 The tape shall consist
14、of a non-crosslinked or partiallycrosslinked rubber nonmetallic semi-conducting or insulatingcompound. The compound shall be well, evenly, and smoothly1This specification is under the jurisdiction of ASTM Committee D09 onElectrical and Electronic Insulating Materials and is the direct responsibility
15、 ofSubcommittee D09.07 on Flexible and Rigid Insulating Materials.Current edition approved May 1, 2008. Published June 2008. Originallyapproved in 1984. Last previous edition approved in 2002 as D 4388 02.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer S
16、ervice at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 1
17、9428-2959, United States.processed, cut to the specified widths, and tightly wound inrolls with a separator between layers. Where a non-removableseparator is used, the separator will be considered an integralpart of the tape.4.2 The separator shall be parchment paper, glazed orplastic sheeting, or a
18、ny suitable material interposed betweenadjacent layers. The removable or non-removable separatorshall not interfere with the use of the roll during application.Where a removable separator is used, the separator shall bereadily removable from the rubber insulation without tearing ordamaging the tape
19、insulation. The outside end of the roll shallbe securely fastened.4.3 Rubber tapes shall conform to the requirements of Table1.5. Permissible Variations in Dimensions5.1 The tape shall conform to the nominal dimensions foundin Table 2 when tested in accordance with Test MethodsD 4325.5.2 The average
20、 thickness shall not vary from the nominalthickness by more than 60.076 mm (60.003 in.) and theaverage width by more than 60.76 mm (60.03 in.).5.3 The average length of the rolls in any sampling shall beno less than the nominal length.6. Aging and Storage6.1 Tapes shall not become unduly attached to
21、 the separa-tors within the period of time specified in Table 3.6.2 Store the tape in the original boxes, preferably in a cooldark location. Do not keep tapes in close proximity to steampipes, radiators, or other sources of heat.7. Test Methods7.1 Select rolls, conditioning, and testing in accordanc
22、e withTest Methods D 4325.7.2 Unless otherwise stated, measurements are made ontapes from which the removable separator has been removed.8. Rejection and Retest8.1 If only one sample roll fails to meet the specification,take a second set of samples in accordance with Test MethodsD 4325. Failure of t
23、wo sample rolls constitutes grounds forrejection.9. Inspection9.1 Inspection of the material shall be made as agreed uponby the purchaser and seller as part of the purchase contract.TABLE 1 Physical Properties for Rubber Insulating TapeRequirements Type I Type II Type III Type IV Type VTensile stren
24、gth, min, MPa (psi) 1.7 (250) 1.7 (250) 1.7 (250) 0.69 (100) 2.4 (350)Elongation at break, min, % 300 500 700 300 700Dielectric strength, min, kV/mm (V/mil):0.51 mm (0.020 in.) thickness . . 28 (700) . 32 (800)0.76 mm (0.030 in.) thickness 14 (350) 20 (500) 24 (600) . 28 (700)1.016 mm (0.040 in.) th
25、ickness . 16 (400) . .Dissipation factor, max:after water immersion . 0.05 0.05 . 0.01after hot water immersion . 0.05 0.05 . 0.01Permittivity, max:after water immersion . 4.5 4.0 . 2.8after hot water immersion . 4.5 4.0 . 2.8Volume resistivity, (ohm-cm):96hat23Cand50%RH . 1014min 1014min 103max 101
26、6min96hat23Cand96%RH . 1013min 1013min . 1015min168 h at 90 C . . . 5 3 104maxFusionFlags 2 mm (564 in.) max Pass at 200 %elonga-tionPass at 300 %elonga-tionPass at 300 %elonga-tionPass at 300 %elongationPass at 300 %elongationOzone resistance . Pass if no visiblesignsof cracksPass if novisible sign
27、sof cracks. Pass if novisible signsof cracksHeat exposure Pass at 95 C Pass at 110 C Pass at 130 C . Pass at 150CUV resistance . . Pass Pass PassTABLE 2 Typical Nominal DimensionsTypeWidth,mm (in.)Thickness,mm (in.)Length, m(yd)III, V 19 (0.75) 0.508 (0.020) 9.1 (10.0)I, II, III, IV 19 (0.75) 0.762
28、(0.030) 9.1 (10.0)IV 19 (0.75) 0.762 (0.030) 4.6 (5.0)IV 19 (0.75) 0.762 (0.030) 2.7 (3.0)II, V 19 (0.75) 1.016 (0.040) 3.4 (3.7)III 25 (1.00) 0.508 (0.020) 9.1 (10.0)I, II, III 25 (1.00) 0.762 (0.030) 9.1 (10.0)II 25 (1.00) 1.016 (0.040) 3.4 (3.7)III, V 38 (1.50) 0.508 (0.020) 9.1 (10.0)I, II, III
29、38 (1.50) 0.762 (0.030) 9.1 (10.0)II 38 (1.50) 1.016 (0.040) 3.4 (3.7)III, V 51 (2.00) 0.508 (0.020) 9.1 (10.0)I, II, III 51 (2.00) 0.762 (0.030) 9.1 (10.0)II 51 (2.00) 1.016 (0.040) 3.4 (3.7)V 38 (1.50) 0.508 (0.020) 50 (55.0)TABLE 3 Aging and StorageProduct Aging TimeType I 8 monthsType II 8 month
30、sType III 2 yearsType IV 2 yearsType V 2 yearsD43880829.2 If inspection is required, the tape shall be tested andinspected either at the place of manufacture prior to shipmentor at the place of delivery within four weeks from date ofdelivery.10. Packaging and Package Marking10.1 PackagingUnless othe
31、rwise specified, the tape orcarton shall be securely wrapped and sealed in a moisture-proof material to protect the contents.10.2 Package MarkingEach box shall be marked with thename of the manufacturer or trademark, nominal width, thick-ness, and length of tape.11. Keywords11.1 dielectric strength;
32、 dissipation factor; elongation; fu-sion; heat exposure; high voltage; low voltage; medium volt-age; ozone resistance; permittivity; rubber electrical insulatingtape; rubber semi-conducting nonmetallic tape; sheath repair;splicing; tensile strength; ultraviolet and weather exposure;volume resistivit
33、ySUMMARY OF CHANGESCommittee D09 has identified the location of selected changes to this specification since the last issue,D 4388 02, that may impact the use of this specification. (Approved May 1, 2008)(1) Revised 6.1 and Table 3.ASTM International takes no position respecting the validity of any
34、patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revis
35、ion at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your c
36、omments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrig
37、hted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D4388083
