1、ASTM D339L 80 2595532 0027572 5+-0-/5 Designation:D 3391-80 AMERICAN SOCIETY FOR TESTING AND MATERIALS 1916 Race St.,Philadelphia.Pa.19103 Reprintedfrom the Annual Book of ASTM Sfandards,Copyright ASTM If not listed in the current combined index,will appear in the next edition.Standard Specification
2、 for RUBBER INSULATING TAPE FOR HIGH-VOLTAGE APPLICATIONS This standard is issued under the fixed designation D 3391;the number immediately following the designation indicates the year of original adoption or,in thecase of revision,theyear of last revision.A number in parentheses indicates theyear o
3、f last reapproval.1.scope 1.1 This specification covers high-voltage,ozone-resistant rubber insulating tape designed for splicing electrical wires and cables operating up to 138 O00 V phase-to-phase under hoth wet and dry locations with conductor temper-atures up to 90C(194OF)for continuous op-erati
4、on,to 130C(266F)for emergency over-load conditions,and to 250C(482F)for short-circuit conditions and for other icsulating purposes.This tape is suitable for wet or dry out-of-door use and for applications under an ambient temperature range of-10 to+4OoC(14 to 104F).2.Appcable Documents 2.1 ASTM Stan
5、dards:D 149 Tests for Dielectric Breakdown Volt-age and Dielectric Strength of Electrical Insulating Materials at Commercial Power Frequencies2 D 150 Tests for A-C Loss Characteristics and Permittivity(Dielectric Constant)of Solid Electrical Insulating Maferials2 D 257 Tests for D-C Resistance or Co
6、nduct-ance of Insulating Materials D412 Tests for Jackefed Wire and Cable4 D 618 Conditioning Plastics and Electrical Insulating Materials for Testing5 D 750 Recommended Practice for Rubber Deterioration in Carbon-Arc or Weather-ing Apparatus3 3.Compound 3.1 Thetape shaiconsist of an unvulcanized-OL
7、 partially vulcanized rubber insulating com-I_ pound.The compound shali be well,evenly,and smoothly processed,cut to the specified widths and tightly wound in rolls wih a sepa-rator between layers.4.Separator 4.I The separator shall be parchment paper,glazed or plastic sheeting,or any suitable ma-te
8、rial inferposed between adjacent layers.The removable or nonremovable separator shalt not interfere with the use of the roll during appli-cation.Where a removable separator is used,the separator shall show no undue tendency to stick to the rubber or to raveI.The oufside end of the roll shall be secu
9、rely fastened.5.Tensile Strength and Elongation 5.1 The tensile strength of the tape,when tesfed in accordance with Section 21,shall be not less than 250 psi(1.7 mPa).5.2 The elongation of a 2-in.(50-mm)gage length determined simultaneously with the ten-sile strength test shali be not less than 700%
10、.6.Dielectric Strength 6.1 The dielectric strengfh of the tape,when tested in accordance with Section 22,shall be not less than 700 Y/mil(28 mV/m)of thick-ness.T h i s specificchon i s under the jurisdiction of ASTM Committee D-9 on Electrical Insulating Materials and is the direct responsibility of
11、 Subcommittee DW.18 on Elastomeric insulation on Cahles.Current editionapproved Oct.31,1980.Published Janu-ary 1981.Ongnaiiy published as D 3391-75.Last previous edition D 339L-75.Annual Book ofASTM Sfandards,Part 39.Annual Book o f ASTM Standards,Pan 37.Annual Book of ASTM Siandards,Part 4 0.Annual
12、 Book of ASTM Stundardr,Parts 22,35,and 39.-NOTICE:This standard has either been superseded and replaced by a new version or discontinued.Contact ASTM International(www.astm.org)for the latest information.ASTM D3393 80 W 2595532 0027573 7 D3391 7.Dissipation Factor and Permittivity 7.1 When the tape
13、 is tested in accordance with Section 23,the maximum average dissi-pation factor and permittivity shall be less than 0.05 and 4.0,respectively.7.2 This is a performance test and is to be conducted by the manufacturer when any change is made.The manufacturer shall submit a copy of the test result whe
14、n requested by the purchaser.8.Volume Resistivity 8.1 When the fused tape is tested as specified in Section 24,the average volume resistivity shall not be less than 1014 Q-cm after Condition 96/23+des and not less than lOI3 Q-cm after Condition 96/23/96.9.Frision specified in Section 25.10.Ozone Res
15、istance 10.1 The tape shall show no injury after exposure for 3 h when tested in accordance with Section 26.9.1 The tape shall meet the fusion test as 11.Heat Resistance Il.I The sample shall be prepared in ac-cordance with Section 27.Support the entire mandrel in a circulating-air oven for 7 days a
16、t 130C(266F)after which the sample shall exhibit no visual porosity,blisters,delamina-tion,cracking.or visible sag.12.Ultraviolet Resistance 12.1 The sample shall be prepared and tested in accordance with Section 28.The weatherometer aged sample shall exhibit no cracking,crazing,or general physical deterio-ration after 1500 h.This is a performance test and is to be conducted by the manufacturer initially on each grade of tape and subsequently when any change is made.The manufacturer shall submit
