ICEA S-70-547-2007 Weather-Resistant Polyethylene Covered Conductors《抗风化聚烯烃包覆电线和电缆》.pdf

1、ANSIjICEA 5-70-547-2007 -!I . . IV:I STANDARD FOR WEATHER-RESISTANT POLYETHYLENE COVERED CONDUCTORS Approved by AMERICAN NATIONAL STANDARDS INSTITUTE September 27, 2007 Publication # ANSIIICEA S 70-547-2007 2007 by leEA INSULATED CABLE ENGINEERS ASSOCIATION, Inc. Approved as an American National Sta

2、ndard ANSI Approval Date: September 27, 2007 AN51/1CEA Publication 5-70-547-2007 standard For Weather-Resistant Polyethylene Covered Conductors Developed and Published By Insulated Cable Engineers Association, Inc. Post Office Box 1568 Carrollton, Georgia, 30112, USA Copyright 2007 by the Insulated

3、Cable Engineers Association, Incorporated. All rights including translation into other languages, reserved under the Universal Copyright Convention, the Berne Convention for the Protection of Literary and Artistic Works, and the International and Pan American Copyright Conventions. NOTICE AND DISCLA

4、IMER The information in this publication was considered technically sourid by the consensus of persons engaged in the development and approval of the document at the time it was developed. Consensus does not necessarily mean that there is unanimous agreement among every person participating in the d

5、evelopment of this document. The Insulated Cable Engineers Association, Inc. (ICEA) standards and guideline publications, of which the document contained herein is one, are developed through a voluntary consensus standards development process. This process brings together persons who have an interes

6、t in the topic covered by this publication. While ICEA administers the process and establishes rules to promote fairness in the development of consensus, it does not independently test, evaluate, or verify the accuracy or completeness of any information or the soundness of any judgements contained i

7、n its standards and guideline publications. ICEA disclaims liability for personal injury, property, or other damages of any nature whatsoever, whether special, indirect consequential, or compensatory, directly or indirectly resulting from the publication, use of, application, or reliance on this doc

8、ument. ICEA disclaims and makes no guaranty or warranty, expressed or implied, as to the accuracy or completeness of any information published herein, and disclaims and makes no warranty that the information in this document will fulfill any of your particular purposes or needs. ICEA does not undert

9、ake to guarantee the performance of any individual manufacturer or sellers products or services byvirtue of this standard or guide. In publishing and making this document available, ICEA is not undertaking to render professional or other services for or on behalf of any person or entity, nor is ICEA

10、 undertaking to perform any duty owed by any person or entity to someone else. Anyone using this document should rely on his or her own independent judgement or, as appropriate, seek the advice of a competent professional in determining the exercise of reasonable care in any given circumstances. Inf

11、ormation and other standards on the topiC covered by this publication may be available from other sources, which the user may wish to consult for additional views or information not covered by this publication. ICEA has no power, nor does it undertake to police or enforce compliance with the content

12、s of this document. ICEA does not certify, test, or inspect products, designs, or installations for safety or health purposes. Any certification or other statement of compliance with any health or safety-related information in this document shall not be attributable to ICEA and is solely the respons

13、ibility of the certifier or maker of the statement. Section I 1.1 1.2 1.3 1.4 1.5 Section 2 2.0 2.1 2.2 2.3 2.4 2.5 Section 3 3.1 3.2 3.3 3.4 Section 4 4.1 4,2 Section 5 5.1 5.2 5.3 5.4 ICEA S-70-547-2007 Page i Contents Page Foreword iii General Scope 1 Design Options 1 Operating Conditions 2 Testi

14、ng and Test Frequency 2 Test Methods 2 Conductors General 3 Physical and Electrical Properties 3 2.1.1 Copper Conductors 3 2.1.2 Aluminum Conductors 3 2.1.3 Aluminum Conductor, Coated-Steel Reinforced. 4 2.1.4 Aluminum Conductor, Aluminum-Clad Reinforced 4 2.1.5 Copper and Copper-Clad Steel Composit

15、e 4 Conductor Size Units. 4 Conductor dc Resistance Per Unit Length 4 2.3.1 Direct Measurement of dc Resistance Per Unit Length 5 2.3.2 Calculation of dc Resistance Per Unit Length 5 Conductor Rated Strength 5 Conductor Diameter 6 Covering Material 7 3.1.1 Requirements for 75C Covering for Normal Se

16、rvice Operation 7 3.1.2 Requirements for 90C Covering for Normal Service Operation 7 Covering Thickness Requirements 7 Covering Physical Requirements 7 Separator T Performance Requirements For Finished Conductors General 16 Strength of Covered Conductors 16 Test Methods For Coverings Method for Meas

17、uring Covered Physical and Air Oven Aging Properties 17 Method for Measuring Covering Heat Deformation 17 (Distortion) Method for Measuring Covering Hot Creep 17 Method for Measuring Absorption Coefficient 17 2007 by the Insulated Cable Engineers Association, Incorporated -.-.-? ICEA S-70-547-2007 P

18、age ii Section 6 6.1 6.2 6.3 APPENDICES A B C LIST OF TABLES 3-1 3-1 (Metric) 3-2 3-2 (Metric) 3-3 3-3 (Metric) 3-4 3-4 (Metric) 3-5 6-1 Qualification Tests General Method for Determining Resistance to Environmental Stress Cracking Sunlight Resistance of Covering Materials with Less than 2 Percent C

19、arbon Black 6.3.1 Qualification . 6.3.2 Sunlight Resistance 6.3.2.1 Carbon-Arc Weather-O-Meter 6.3.2.2 Xenon-Arc Weather-O-Meter Titles and Dates of Industry Standards Referenced in this Document Recommended Bending Radii for Covered Conductors English/Metric Conversion Aluminum 1350 Conductor Const

20、ructions Aluminum 1350 Conductor Constructions Aluminum Conductors, Coated-Steel Reinforced (ACSR), and Aluminum Clad Steel Reinforced (ACSRlAW) Constructions Aluminum Conductors, Coated-Steel Reinforced (ACSR), and Aluminum Clad Steel Reinforced (ACSRlAW) Constructions Aluminum-Alloy 6201-T81 Condu

21、ctor Constructions Aluminum-Alloy 6201-T81 Conductor Constructions Copper Conductor Constructions. Copper Conductor Constructions Covering Physical Requirements Qualification Test Requirements 2007 by the Insulated Cable Engineers Association, Incorporated 18 18 18 18 18 18 18 20 22 22 8 9 10 11 12

22、12 13 14 15 19 Foreword ICEA S-70-547-2007 Page iii ICEA standards and guides are adopted in the public interest and are designed to eliminate misunderstanding between the manufacturer and user and to assist the user in selecting and obtaining proper products for his particular need. Existence of an

23、 ICEA standard or guide does not in any respect preclude the manufacture or use of products not conforming to the standard or guide. The user of this Standard is cautioned to observe any applicable health or safety regulations and rules relative to the manufacture and use of cable made in conformity

24、 with this Standard. This Standard hereafter assumes that manufacture, testing, installation and maintenance of cables defined by this publication will be performed only by properly trained personnel using suitable equipment. Requests for interpretation of this Standard must be submitted in writing

25、to the Insulated Cable Engineers Association at the address below. An official written interpretation will be provided. Suggestions for improvements gained in the use of this Standard will be welcomed by the Association. Copyrighted by the ICEA Contents may not be reproduced in any form without perm

26、ission of the INSULATED CABLE ENGINEERS ASSOCIATION, INC. Post Office Box 1568 Carrollton, GA 30112, USA Telephone: (770) 830-0369 2007 by the Insulated Cable Engineers Association, Incorporated ICEA S-70-547-2007 Page iv 2007 by the Insulated Cable Engineers Association, Incqrporated 1.1 SCOPE Sect

27、ion 1 GENERAL ICEA S-70-547-2007 Page 1 This standard applies to the materials, constructions, and testing of weather-resistant thermoplastic and crosslinked polyethylene covered conductors, rated for 75C or 90C normal service temperature. These conductors are intended primarily for the distribution

28、 of electrical energy under normal conditions of overhead (aerial) installations and service outdoors. The coverings carry no voltage rating, and the conductors must be installed on insulators adequate for the service voltage. The user may want to give consideration to the dielectric compatibility o

29、f the covering, insulator, and conductor/insulator tie. When reference is made in this publication to an industry standard, that reference is to the standard with the title and date of issue listed in Appendix A. Where a conflict exists between the requirements of this standard and those of a refere

30、nced standard, the requirements of this standard shall apply. The recommended bending radii for conductors is given in Appendix B. U.S. Customary units, except for temperature, are specified throughout this standard and are the controlling units. ApproXimate International System of Units (51) equiva

31、lents are included for information only. The rounding-off method of ASTM E 29 shall be used for determining conformance with requirements. To convert from an English unit to the appropriate SI unit, multiply the value of the English unit by the appropriate number from Appendix C. 1.2 DESIGN OPTIONS

32、The user of this standard should recognize that it covers many options. The user should select the necessary options required for a complete description of the covered conductors. This standard covers constructions with substantially different rated strengths. The user of this standard should determ

33、ine that the rated breaking strength of each conductor used for each application is adequate for that application, as determined by paragraph 4.2 and the relevant ASTM standard for the bare version of that conductor, and the requirements of the latest edition of the National Electrical Safety Code.

34、The Aluminum Association Publication No. 50 “Code Words for Overhead Aluminum Electrical Conductors“, lists the code words that have been registered for aluminum conductors. Code words in Tables 3-1 through 3-3 are for information only. 2007 by the Insulated Cable Engineers Association, Incorporated

35、 ICEA S-70-54 7 -2007 Page 2 1.3 OPERATING CONDITIONS The design and construction of the cable shall be such that the cable will operate satisfactorily under the normal conditions of overhead line (aerial) service maximum conductor temperatures as follows: Covering Normal Type Service Thermoplastic

36、75 Polyethylene Crosslinked 90 Polyethylene Conductor Operating Temperature, C Emergency Overload 95 130 Short Circuit 150 250 * Exception: When adequate knowledge of the thermal characteristics of a cable environment is lacking, the permissible conductor temperature should be reduced by 10C or in a

37、ccordance with available data. The 75C or 90C “Normal Service Operation“ temperature is the highest allowable temperature attained by the hottest portion of a cable line during daily operating load cycles. It shall be used in ampacity calculations where adequate information is known about the overal

38、l thermal characteristics of the cable environment to ensure that the normal service temperature will not be exceeded. The 95C or 130C “Emergency Overload Operation“ temperature is the highest allowable temperature attained by the hottest portion of a cable line during an emergency. Operation at tha

39、t overload temperature shall not exceed 100 hours in any twelve consecutive months or 500 hours during the lifetime of the cable. The 150C or 250C “Short Circuit Operation“ temperature is the highest allowable temperature attained by a phase conductor along any part of the cable line during a short

40、circuit of a specified magnitude and numbE;)r of cycles. See the latest edition of ICEA Publication P-32-382. 1.4 TESTING AND TEST FREQUENCY All cables shall comply with the requirements given in Parts 2 and 3. This standard does not specify any frequency for sampling (for test) of cable products or

41、 components. One program of sampling frequencies is given in the latest edition of ICEA T-26-465/NEMA WC 54. 1.5 TEST METHODS Except where test and measurement methods are specifically detailed or modified by this standard, the methods and procedures used to determine compliance with the requirement

42、s are those applicable in the latest edition of ICEA T-27-581/NEMA WC 53 and the other industry standards referenced in this standard. 2007 by the Insulated Cable Engineers Association, Incorporated 2.0 GENERAL Section 2 CONDUCTORS ICEA S-70-54 7 -2007 Page 3 Conductors shall meet the requirements o

43、f the appropriate ASTM standards referenced in this standard. Diameters shall be in accordance with paragraph 2.5. 2.1 PHYSICAL AND ELECTRICAL PROPERTIES The conductors used in the cable shall be copper in accordance with 2.1.1, aluminum in accordance with 2.1.2, aluminum conductor coated-steel rein

44、forced in accordance with 2.1.3, aluminum conductor aluminum-clad reinforced in accordance with 2.1.4, or copper and copper-clad steel composite in accordance with 2.1.5, except as noted in 2.0. The outer layer of an uncoated stranded copper conductor may be tin coated to obtain free stripping of an

45、 adjacent polymeric layer. 2.1.1 Copper Conductors ASTM B 1 for hard-drawn copper wire. ASTM B 2 for medium-hard-drawn copper wire. ASTM B 3 for soft or annealed uncoated copper. ASTM B 5 for electrical grade copper. ASTM B 8 for Class AA, A, or B stranded copper conductors (excluding unilay compres

46、sed). ASTM B 33 for soft or annealed tin-coated copper wire. ASTM B 496 for compact-round stranded copper conductors. 2.1.2 Aluminum Conductors ASTM B 230 for electrical grade aluminum 1350-H19. ASTM B 231 for Class AA, A, or B stranded aluminum 1350 (excluding unilay compressed) ASTM B 233 for elec

47、trical grade aluminum 1350 drawing stock. ASTM B 398 for aluminum-alloy 6201 T-81 wire. ASTM B 399 for Class AA or A stranded aluminum-alloy 6201 T-81 conductors. ASTM B 400 for compact-round stranded aluminum 1350 conductors. ASTM B 609 for electrical grade aluminum 1350 annealed and intermediate t

48、empers (1350-H16 or H-26 only). 2007 by the Insulated Cable Engineers Association, Incorporated ICEA S-70-547-2007 Page 4 2.1.3 Aluminum Conductor,Coated-Steel Reinforced ASTM B 230 for electrical grade aluminum 1350-H19. ASTM B 232 for concentric-lay-stranded aluminum conductors, coated-steel reinf

49、orced ASTM B 233 for electrical grade aluminum 1350 drawing stock. ASTM B 341 for aluminum-coated (aluminized) steel core wire for aluminum conductors, steel reinforced (ACSRlAZ). ASTM B 401 for compact round concentric-lay-stranded aluminum conductors, steel reinforced (ACSRlCOMP). ASTM B 498 for zinc coated (galvanized) steel core wire for aluminum conductors, steel reinforced (ACSR). ASTM B 606 for high-strength zinc-coated (galvanized) steel core wire for aluminum and aluminum-alloy conductors,