ASTM D3554-2007 Standard Specification for Track-Resistant Black Thermoplastic High-Density Polyethylene Insulation for Wire and Cable 75 &176 C Operation《工作温度75C的电线和电缆用不留痕迹的黑色高密度聚.pdf

1、Designation: D 3554 07An American National StandardStandard Specification forTrack-Resistant Black Thermoplastic High-DensityPolyethylene Insulation for Wire and Cable, 75 COperation1This standard is issued under the fixed designation D 3554; the number immediately following the designation indicate

2、s the year oforiginal adoption 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. Scope*1.1 This specification covers track-resistant bl

3、ack thermo-plastic high-density polyethylene insulation. Before applica-tion to the conductor, the insulation shall comply with therequirements of Specification D 1248, Type III, Class C,Category 5, Grade E10, J4, or J5. The requirements ofSpecification D 1248 shall not apply to the insulation remov

4、edfrom the conductor.1.2 This type of insulation is considered suitable for use onwire or cable that will be used for continuous operation atconductor temperatures up to 75 C.1.3 This insulation is suitable for use on wire or in cableused for power transmission in overhead spaced-line service,instal

5、led at temperatures above 25 C and exposed to sunlightand other atmospheric environments between 55 and +75 C.1.4 In many instances, the insulation cannot be tested unlessit has been formed around a conductor.Therefore, tests done oninsulated wire in this standard are solely to determine therelevant

6、 property of the insulation and not to test the conductoror completed cable.1.5 Whenever two sets of values are presented, in differentunits, the values in the first set are the standard, while those inparentheses are for information only.2. Referenced Documents2.1 ASTM Standards:2D 1248 Specificati

7、on for Polyethylene Plastics ExtrusionMaterials for Wire and CableD 1693 Test Method for Environmental Stress-Cracking ofEthylene PlasticsD 1711 Terminology Relating to Electrical InsulationD 1928 Practice for Preparation of Compression-MoldedPolyethylene Test Sheets and Test Specimens3D 2132 Test M

8、ethod for Dust-and-Fog Tracking and Ero-sion Resistance of Electrical Insulating MaterialsD 2633 Test Methods for Thermoplastic Insulations andJackets for Wire and Cable3. Terminology3.1 Definitions:3.1.1 For definitions of terms used in this specification, referto Terminology D 1711.3.2 Definition

9、of Term Specific to This Standard:3.2.1 aging, (act of), nexposure of materials to air at atemperature of 100 C for 48 h.4. Physical Properties4.1 When tested for physical and aging requirements, heatdistortion, cold bend, U-bend discharge, and surface resistivityin accordance with Test Methods D 26

10、33, environmentalcracking in accordance with Test Method D 1693, and trackresistance in accordance with Test Method D 2132, the track-resistant black thermoplastic high-density polyethylene insula-tion shall meet the requirements specified in Table 1.5. Electrical Requirements Electrical Requirement

11、s5.1 Subject cable specimens to a 5 min ac or dc voltagewithstand test at voltages which are based on the nominalthickness of the insulation. Conduct tests in accordance withTest Methods D 2633 using 125 V/mil (5 kV/mm) for ac testsor 375 V/mil (15 kv/mm) for dc tests.6. Sampling6.1 Sample the insul

12、ation in accordance with Test MethodsD 2633 and Test Method D 1693.7. Test Methods7.1 Test the insulation in accordance with Test MethodsD 2633 and Test Method D 1693, modified as noted in Table 1,and noted as follows.7.2 To test for environmental cracking in accordance withTest Method D 1693, test

13、specimens shall be molded in1This specification is under the jurisdiction of ASTM Committee D09 onElectrical and Electronic Insulating Materials and is the direct responsibility ofSubcommittee D09.18 on Solid Insulations, Non-Metallic Shieldings and Coveringsfor Electrical and Telecommunication Wire

14、s and Cables.Current edition approved Oct. 1, 2007. Published October 2007. Originallyapproved in 1977. Last previous edition approved in 2001 as D 3554 01.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of AST

15、MStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.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 19428-2959, United States.accordance wi

16、th Procedure C of Practice D 1928 and the testreagent shall be 10 % Igepal CO-630.47.3 Test the track resistance in accordance with Test MethodD 2132.8. Keywords8.1 ac test; cold bend; dc test; elongation; environmentalcracking; heat distortion; high-density polyethylene; surfaceresistivity; tensile

17、 strength; thermoplastic; track-resistant;u-bend dischargeSUMMARY OF CHANGESCommittee D09 has identified the location of selected changes to this specification since the last issue,D 3554 01, that may impact the use of this specification. (Approved October 1, 2007)(1) Revised 1.1 and 1.4.(2) Moved t

18、he text of 3.1 into new 3.1.1.(3) Revised track resistance requirement in Table 1.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the v

19、alidity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your c

20、omments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments ha

21、ve not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multipl

22、e 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).4The sole source of supply of Igepal CO-630 known to the committee at thistime is Rhone-Poulenc Inc

23、. If you are aware of alternative suppliers, please providethis information to ASTM International Headquarters. Your comments will receivecareful consideration at a meeting of the responsible technical committee,1whichyou may attend.TABLE 1 Physical Requirements for Track-Resistant Black Thermoplast

24、ic High-Density Polyethylene InsulationPhysical requirements (unaged):Tensile strength, min, psi (MPa) 2500 (17.2)Elongation at rupture, min, % 300Physical requirements after aging in an air oven at 100 6 1 C for 48 h:Tensile strength, min, % of unaged value 75Elongation at rupture, min, % of unaged

25、 value 75Heat distortion at 906 1 C, max, % of unaged thickness:4/0 AWG (107 mm2) and smaller (insulation on cable) 30Larger than 4/0 AWG (107 mm2) (buffed sample of insulation) 10Cold bend, at 256 1C for 1 h no cracksEnvironmental cracking, 48 h no cracksU-bend discharge, 125 V/mil (5 kV/mm) no cable failures or cracks in insulation surfaceSurface resistivity, min, MV 200 000Track Resistance:Average time to failure, min (h) 200 (3.33)D3554072