1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2460 Nonshielded CableUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTIO
2、N OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Nonshielded CableUL 2460 First Edition, Dated September 29, 2015 Summary of Topics This is the First Edition of ANSI/UL 2460. The new requirements are substantially in accordance with Proposal(s) on this subject dated August 7,
3、2015. . All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard as is without warranty of any kind
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7、electronic Standard on the purchasers computer system. SEPTEMBER 29, 2015 UL 2460 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SEPTEMBER 29, 2015 UL 2460 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPROD
8、UCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SEPTEMBER 29, 2015 1 UL 2460 Standard for Nonshielded Cable First Edition September 29, 2015 This ANSI/UL Standard for Safety consists of the First Edition. The most recent designation of ANSI/UL 2460 as an American National Standard (ANSI) occurred
9、on September 29, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages and Title Page. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative
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11、ive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC. ANSI/UL 2460-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SEPTEMBER 29, 2015 NONSHIELDED CABLE - UL 2460 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FO
12、R FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 Components 4 3 Units of Measurement .5 4 Undated References 5 CONSTRUCTION 5 Materials and Workmanship 5 6 Cable Rated 5000 V .5 7 Cable Rated 8000 V .5 PERFORMANCE 8 Cable Rated 5000 V .8 9 Cable Ra
13、ted 8000 V .8 9.1 General .8 9.2 Elevated-Temperature Relative Permittivity Test of Jacket on Nonshielded 8-kV Single-Conductor Cable .8 MARKINGS 10 On the Cable .10 11 On the Tag, Reel, or Carton Markings .10 SEPTEMBER 29, 2015 NONSHIELDED CABLE - UL 2460 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR
14、 FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 This Standard covers single-conductor, nonshielded cables rated 5000 or 8000 volts, 90C, described in Table 1.1 that are intended solely for use as factory-installed wiring in equipment (internal wiring), in in
15、dustrial applications where such cable systems are maintained by trained personnel, not as Type MV. 1.2 These requirements do not cover cables that are intended for direct installation in buildings or structures in accordance with the National Electrical Code (NEC), NFPA 70. 1.3 The nal acceptance o
16、f these cables is dependent upon their use in complete equipment that conforms with the standards applicable to such equipment. Table 1.1 Constructions Voltage rating Size Use Insulation material Insulation thickness Shield Overall covering 5000 8 AWG 1000 kcmil 90C (194F) dry XLPE or EPCV Table 15.
17、3, Column A, of UL 1072 Nonshielded none XLPE, EPCV, DREP, or EP Table 15.3, Column B, of UL 1072 Nonshielded Nonconductive jacket, Table 27.20, Column C, of UL 1072 XLPE, DREP, or EP Table 15.3, Column C, of UL 1072 Nonshielded Nonconductive jacket, Table 27.20, Column C, of UL 1072 8000 8 AWG 1000
18、 kcmil 90C (194F) dry XLPE, DREP, or EP Table 7.1 Nonshielded Table 7.2 2 Components 2.1 Except as indicated in 2.2, a component (including gaskets and polymeric materials) of a product covered by this Standard shall comply with the requirements for that component. 2.2 A component is not required to
19、 comply with a specic requirement that: a) Involves a feature or characteristic not required in the application of the component in the product covered by this Standard; or b) Is superseded by a requirement in this Standard. 2.3 A component shall be used in accordance with its rating established for
20、 the intended conditions of use. SEPTEMBER 29, 2015 NONSHIELDED CABLE - UL 2460 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such co
21、mponents are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. 3 Units of Measurement 3.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or app
22、roximate information. 4 Undated References 4.1 Any undated reference to a code or standard appearing in the requirements of this Standard shall be interpreted as referring to the latest edition of that code or standard. CONSTRUCTION 5 Materials and Workmanship 5.1 Only materials that are acceptable
23、for the particular use shall be employed in a cable. Cables shall be made and nished with the degree of uniformity and grade of workmanship that are practicable in a well-equipped factory. 5.2 Each material used in a cable shall be compatible with all of the other materials used in the cable. 6 Cabl
24、e Rated 5000 V 6.1 Except for the markings (see Sections 10 and 11), the 5000 V cable is a nonshielded single-conductor cable constructed identically conductor, conductor stress relief, insulation, and overall jacket (where required) to the 2400 V, dry-locations only, nonshielded cable described in
25、the Standard for Medium-Voltage Power Cables, UL 1072. 7 Cable Rated 8000 V 7.1 Except for the insulation thickness, the use of a nonconductive jacket, and markings (see Sections 10 and 11), the 8000 V cable is a nonshielded single-conductor cable constructed identically conductor, conductor stress
26、relief, insulation, and overall jacket (where required) to the 2400 V, dry-locations only, nonshielded cable described in the Standard for Medium-Voltage Power Cables, UL 1072. 7.2 The average thickness of the insulation and the minimum thickness at any point of the insulation shall not be less than
27、 indicated in Table 7.1. SEPTEMBER 29, 2015 NONSHIELDED CABLE - UL 2460 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Table 7.1 Thicknesses of insulation and non-conductive jacket in nonshielded single-conductor cables rated 8000 V Size o
28、f conductor 8000 V cable with XLPE, EP, or DREP insulation with a nonconductive jacket over the insulation Minimum average thickness Minimum thickness at any point mils 8 4/0 AWG 180 162 213 500 kcmil 210 189 501 750 235 212 751 1000 250 225 mm 8 4/0 AWG 4.57 4.11 213 500 kcmil 5.33 4.80 501 750 5.9
29、7 5.38 751 1000 6.35 5.72 7.3 The conductor shielding for cable rated 8000 V shall comply with the requirements for Conductor Stress Relief (Conductor Shielding) in the Standard for Medium-Voltage Power Cables, UL 1072. 7.4 Each circuit conductor rated 8000 V shall be insulated in accordance with Ma
30、terial, Application, and Centering of the Standard for Medium-Voltage Power Cables, UL 1072. Jacketed nonshielded cable rated 8000 V, insulated as indicated in Table 7.2 and having XLPE, EP, or DREP insulation shall have an insulation resistance at 60.0F (15.6C) such that the minimum value of K is 1
31、2,000 megohms based on 1000 conductor feet or 3650 megohms based on a conductor kilometer. The insulation alone shall have an insulation resistance at 60.0F (15.6C) such that the minimum value of K is 20,000 megohms based on 1000 conductor feet or 6100 megohms based on a conductor kilometer. 7.5 Eac
32、h circuit conductor rated 8000 V shall be provided with a nonconductive jacket. The jacket materials shall be in accordance with the Non-conductive jacket Table of the Standard for Medium-Voltage Power Cables, UL 1072. The jacket properties shall be in accordance with the following Tables in UL 1072
33、 as applicable: a) Properties of Non-Conductive CP Jacket b) Physical Properties of Non-Conductive CP Jacket c) Properties of Non-Conductive CPE Jacket d) Physical Properties of Non-Conductive CPE Jacket e) Properties of Non-Conductive NBR/PVC Jacket f) Physical Properties of Non-Conductive NBR/PVC
34、Jacket g) Properties of Non-Conductive Neoprene Jacket h) Physical Properties of Non-Conductive Neoprene Jacket i) Properties of Non-Conductive PE Jacket j) Physical Properties of Non-Conductive PE Jacket SEPTEMBER 29, 2015 NONSHIELDED CABLE - UL 2460 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURT
35、HER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL k) Properties of Non-Conductive PVC Jacket l) Physical Properties of Non-Conductive PVC Jacket m) Properties of Non-Conductive TPEJacket n) Physical Properties of Non-Conductive TPE Jacket o) Properties of Non-Conductive XL Jacket p) Physic
36、al Properties of Non-Conductive XL Jacket The thickness shall be as specied in Table 7.2 when measured in accordance with the Basic Optical Method or in Direct Measurement specied in UL 1072. In case of doubt, the thickness shall be measured by the referee optical method as specied in UL 1072. Table
37、 7.2 Thickness of non-conductive jacket on nonshielded cables rated 8000 V Size of conductor 8000 V cable with XLPE, EP, or DREP insulation with a nonconductive jacket over the insulation Minimum average thickness Minimum thickness at any point mils 8 6 AWG 80 64 4 2/0 95 76 3/0 4/0 110 88 213 500 k
38、cmil 110 88 501 750 125 100 751 1000 140 112 mm 8 6 AWG 2.03 1.63 4 2/0 2.41 1.93 3/0 4/0 2.79 2.24 213 500 kcmil 2.79 2.24 501 750 3.18 2.54 751 1000 3.56 2.84 SEPTEMBER 29, 2015 NONSHIELDED CABLE - UL 2460 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PER
39、MISSION FROM UL PERFORMANCE 8 Cable Rated 5000 V 8.1 The test program used to evaluate cable rated 5000 V shall be identical to that which is used to evaluate dry locations, 2400 V, nonshielded cable (see 6.1). 9 Cable Rated 8000 V 9.1 General 9.1.1 The test program used to evaluate cable rated 8000
40、 V shall be identical to that which is used to evaluate dry locations, 2400 V, nonshielded cable (see Materials, Section 6) in the Standard for Medium-Voltage Power Cables, UL 1072 except as follows: a) The Specic Surface Resistivity of Nonshielded Single-Conductor Cable Test, Section 47 of UL 1072
41、is required. b) The U-Bend Discharge Test of Nonshielded Single-Conductor Cable, Section 49 of UL 1072 shall be conducted as if testing a 2400 V, dry-rated cable except that the test potential shall be 27 kV and the test period shall be 100 hours. c) The cables shall be subjected to the A-C Dielectr
42、ic Withstand Test of Each Nonshielded Conductor, Section 57 of UL 1072. The cable shall withstand for 5 minutes without breakdown a 23 62 Hz essentially sinusoidal rms test potential of 18 kV. The initially-applied rms potential may be anywhere in the range of near zero to 8000 V. d) The Elevated-Te
43、mperature Relative Permittivity Test of Jacket on Nonshielded 8000 V Single-Conductor Cable in Section 9.2 of this Standard shall be conducted. 9.2 Elevated-Temperature Relative Permittivity Test of Jacket on Nonshielded 8-kV Single- Conductor Cable 9.2.1 The jacket on nonshielded 8000 V single-cond
44、uctor cable shall be such that specimens of the nished jacketed, insulated cable, that are immersed in tap water at a temperature of 75.0 1.0C (167.0 1.8F) have a relative permittivity or dielectric constant determined for the jacket with 48 62 Hz current at an average stress of 80 volts per mil or
45、3150 volts per millimeter, after immersion of the specimens for 24 hours, no higher than 10.0 and no lower than 6.00 for any jacketing material. 9.2.2 To determine whether or not the overall jacket complies with the requirement in 9.2.1, tests are to be made using four 15-ft or 5-m specimens of the
46、nished cable with the overall jacket in place. After not less than 48 hours from the time of cross-linking of a CP, thermoset CPE, NBR/PVC, or neoprene jacket, or from application of a thermoplastic CPE, PE of a high molecular weight, or PVC jacket, two specimens are to be dried for 24 hours in air
47、at 70.0 1.0C (158.0 1.8F) before being immersed in water. 9.2.3 The center 120-inch or 3048-mm portion of each specimen is to be immersed in tap water at a temperature of 75.0 1.0C (167.0 1.8F) for 24 hours. The 30-inch or 976-mm portion at each end of each specimen is to be kept dry above the water
48、 as leakage insulation. A tight-tting cover for the tank is to be placed directly above the surface of the water. SEPTEMBER 29, 2015 NONSHIELDED CABLE - UL 2460 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 9.2.4 The capacitance of each j
49、acketed, insulated specimen is to be measured with 48 62 Hz current at an average stress of 80 volts rms per mil of measured insulation thickness (not insulation plus jacket thickness) or 3150 volts rms per millimeter of insulation thickness (not insulation plus jacket thickness) with bridge apparatus after 24 hours of immersion. The voltage applied during each measurement is to be between the conductor in the specimen and an electrode that is ea
