1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2592 Low Voltage LED WireUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUC
2、TION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Low Voltage LED Wire, UL 2592 First Edition, Dated March 9, 2015 Summary of Topics This is the rst edition of the Standard for Safety for Low Voltage LED Wire, ANSI/UL 2592. The new requirements are substantially in accordanc
3、e with Proposal(s) on this subject dated October 10, 2014. 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 provid
4、es this Standard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of
5、 prots, lost savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for th
6、is Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or
7、deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the
8、 note following the affected item. The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. MARCH 9, 2015 UL 2592 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTI
9、ON OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 9, 2015 UL 2592 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 9, 2015 1 UL 2592 Standard for Low Voltage LED Wire Prior to the rst edition, the requirements
10、for the products covered by this standard were included in the Outline of Investigation for Low Voltage LED Wire, UL 2592. First Edition March 9, 2015 This ANSI/UL Standard for Safety consists of the First Edition. The most recent designation of ANSI/UL 2592 as an American National Standard (ANSI) o
11、ccurred on March 9, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. 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 Reque
12、st in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards s
13、hall remain the sole and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC. ANSI/UL 2592-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 9, 2015 LOW VOLTAGE LED WIRE - UL 2592 2 No Text on This PageUL COPYRIGHT
14、ED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4 2 Units of Measurement .4 3 Undated References 4 CONSTRUCTION 4 Materials .4 5 Conductors .5 5.1 General .5 5.2 Metal coating 7 5.3 Separator 7 6 Insulation 8 7 Assembly .1
15、0 PERFORMANCE 8 Samples 10 9 Physical Properties Tests .10 10 Routine Voltage Application Test .10 11 Voltage Application at Elevated Temperature .11 12 Extended Voltage Application Test .12 13 Extended Voltage Application After Immersion Test 13 14 Conductor Corrosion Test 13 15 Surface Leakage Tes
16、t 14 16 VW-1 Flame Test (Required) .14 17 Vertical-Tray Flame Test on Wire Optionally Marked -VTR .14 18 FT4/IEEE 1202 Flame Test on Wire Optionally Marked FT4 15 19 Sunlight Resistance .15 20 Cold Bend .15 21 U-Bend Test .15 21.1 General .15 21.2 Apparatus .15 21.3 Specimen .16 21.4 Procedure .16 2
17、1.5 Examination .16 22 Impact Test for Wire Optionally Marked -EX 16 23 Crushing Test for Wire Optionally Marked -EX 18 24 Surface Marking 19 MANUFACTURING AND PRODUCTION TESTS 25 Spark Test .19 MARKING 26 Information on the Wire 19 27 Information on the Tag, Reel, or Carton .20 28 Date of Manufactu
18、re 21 MARCH 9, 2015 LOW VOLTAGE LED WIRE - UL 2592 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover single-conductor and multi-conductor, unjacketed, 18 10 AWG (0.807 5.16 mm 2 ), low voltage
19、 LED wire rated 105C 250C (221F 482F), and 300 or 600 volts, suitable for installation in dry and damp, or wet locations. These wires are for use with signs, outline lighting, and interior lighting where the wire is only connected to the output of the driver to the LED array, is only accessible duri
20、ng user servicing of the sign, and is not required to be additionally enclosed by the sign enclosure, in accordance with the Standard for Electrical Signs, UL 48. 1.2 Assemblies that include these wires and are intended for use as components of signs shall meet the requirements in the Standard for E
21、lectric-Sign Components, UL 879. 1.3 Wires that are surface marked -EX are for use as exposed runs between a cable tray and utilization equipment where the wires are continuously supported and protected against physical damage using mechanical protection such as struts, angles, or channels. 2 Units
22、of Measurement 2.1 When a value for measurement is followed by a value in other units, the use of either value will provide equivalent results in the application of the requirement. 2.2 In addition to being stated in the inch/pound units that are customary in the USA, each of the requirements in thi
23、s standard is also stated in units that make the requirement conveniently usable in countries employing the various metric systems (practical SI and customary). Equivalent although not necessary exactly identical results are to be expected from applying a requirement in USA or in metric terms. Equip
24、ment calibrated in metric units is to be used when a requirement is applied in metric terms. 3 Undated References 3.1 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. CONSTRUCT
25、ION 4 Materials 4.1 Each material used in a wire shall be compatible with all of the other materials used in the wire. MARCH 9, 2015 LOW VOLTAGE LED WIRE - UL 2592 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5 Conductors 5.1 General 5.1
26、.1 The conductor shall be stranded and shall be of soft-annealed copper. The conductor shall be 18 10 AWG (0.807 5.16 mm 2 ) in size. The conductor shall not be smaller in area than indicated in Table 5.1 and shall be continuous throughout without joints in the conductor as a whole. The conductor sh
27、all not be used where subjected to any temperature that exceeds that shown for the metal as shown in Table 5.2. The metal shall comply with the applicable ASTM specication as indicated in Table 5.2. Table 5.1 Minimum cross-sectional area of conductor AWG size of copper conductor cmil (0.98 X nominal
28、 area) mm 2 18 1,588 0.807 17 2,009 1.02 16 2,528 1.28 15 3,195 1.62 14 4,028 2.04 13 5,076 2.58 12 6,399 3.24 11 8,065 4.09 10 10,172 5.16 Table 5.2 Conductor metal specications Conductor Metal ASTM Reference Temperature limit, C (F) Copper, uncoated, each strand less than 0.015 inch (0.38 mm) in d
29、iameter Standard Specication for Soft or Annealed Copper Wire, ASTM/ANSI B 3 150 (302) Copper, uncoated, each strand at least 0.015 inch (0.38 mm) in diameter Standard Specication for Soft or Annealed Copper Wire, ASTM/ANSI B 3 200 (392) Copper, tin-coated, each strand less than 0.015 inch (0.38 mm)
30、 in diameter Standard Specication for Soft or Annealed Copper Wire, ASTM/ANSI B 3 150 (302) Copper, tin-coated, each strand at least 0.015 inch (0.38 mm) in diameter Standard Specication for Soft or Annealed Copper Wire, ASTM/ANSI B 3 200(392) Copper, silver-coated Standard Specication for Silver-co
31、ated Soft or Annealed Copper Wire, ASTM/ ANSI B 298 200 (392) Copper, nickel-coated Standard Specication for Nickel-coated Soft or Annealed Copper Wire, ASTM/ ANSI B 355 250 (482) Copper, nickel-coated, 27 percent minimum nickel coated copper Standard Specication for Nickel-coated Soft or Annealed C
32、opper Wire, ASTM/ ANSI B 355 550 (1022) 5.1.2 The size of a conductor shall be veried either by determination of the dc resistance or by determination of the cross-sectional area as described in 5.1.4. Measurement of the dc resistance is to be as described in the DC resistance test in the Standard f
33、or Wire and Cable Test Methods, UL 2556. Determination of the conductor size by measurement of the direct-current resistance is the referee method in all cases. The dc resistance shall not be higher than the maximum indicated for the size in Table 5.3 or Table 5.4, as applicable. MARCH 9, 2015 LOW V
34、OLTAGE LED WIRE - UL 2592 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Table 5.3 Maximum direct-current resistance of copper conductors ASTM Class C 19-strand concentric-lay conductors AWG size of conductor (mm 2 ) Uncoated Coated 20C (6
35、8F) 25C (77F) 20C (68F) 25C (77F) Ohms per 1000 feet Ohms per kilo-meter Ohms per 1000 feet Ohms per kilo-meter Ohms per 1000 feet Ohms per kilo-meter Ohms per 1000 feet Ohms per kilo-meter 18 (0.807) 6.66 21.8 6.79 22.2 7.06 23.2 7.19 23.6 17 (1.02) 5.27 17.3 5.37 17.6 5.59 18.3 5.70 18.7 16 (1.28)
36、 4.18 13.7 4.26 14.0 4.45 14.6 4.53 14.9 15 (1.62) 3.31 10.9 3.37 11.1 3.44 11.3 3.51 11.5 14 (2.04) 2.62 8.62 2.68 8.78 2.73 8.96 2.78 9.14 13 (2.58) 2.08 6.82 2.12 6.97 2.21 7.10 2.20 7.24 12 (3.24) 1.65 5.43 1.68 5.53 1.72 5.64 1.75 5.75 11 (4.09) 1.32 4.30 1.34 4.39 1.37 4.48 1.39 4.56 10 (5.16)
37、 1.039 3.409 1.060 3.476 1.080 3.546 1.102 3.615 Table 5.4 Maximum direct-current resistance of single-bunch bunch-stranded copper conductors AWG size of conductor (mm 2 ) Uncoated Coated 20C (68F) 25C (77F) 20C (68F) 25C (77F) Ohms per 1000 feet Ohms per kilo-meter Ohms per 1000 feet Ohms per kilo-
38、meter Ohms per 1000 feet Ohms per kilo-meter Ohms per 1000 feet Ohms per kilo-meter 18 (0.807) 6.72 22.1 6.85 22.5 7.23 23.7 7.36 24.6 17 (1.02) 5.29 17.4 5.40 17.7 5.47 17.9 5.57 18.3 16 (1.28) 4.18 13.7 4.26 14.0 4.54 14.9 4.58 15.0 15 (1.62) 3.30 10.8 3.37 11.1 3.44 11.3 3.50 11.5 14 (2.04) 2.63
39、8.64 2.67 8.76 2.82 9.25 2.89 9.48 13 (2.58) 2.08 6.82 2.12 6.96 2.16 7.09 2.20 7.22 12 (3.24) 1.65 5.42 1.69 5.55 1.78 5.84 1.81 5.94 11 (4.09) 1.32 4.33 1.35 4.43 1.37 4.49 1.40 4.59 10 (5.16) 1.040 3.420 1.063 3.380 1.120 3.680 1.140 3.740 5.1.3 The resistance of a copper conductor measured at a
40、temperature other than 20 or 25C (68 or 77F) is to be adjusted to the resistance at 20 or 25C (68 or 77F) by means of the applicable multiplying factor from Adjustment factors for dc resistance of conductors in the Standard for Wire and Cable Test Methods, UL 2556. 5.1.4 Where measured as the means
41、of size verication (see 5.1.2), the cross-sectional area of the conductor shall not be smaller than the minimum area indicated for the size in Table 5.1. The cross-sectional area of the conductor is to be determined as the sum of the areas of its component round strands, with the individual strands
42、measured as described in 5.1.5. 5.1.5 The diameter of each individual strand is to be measured over the tin or other metal coating by means of a micrometer caliper having at surfaces on both the anvil and the end of the spindle and calibrated to read directly to at least 0.001 inch (0.01 mm). It is
43、to be assumed that any one strand is practically constant in diameter throughout its length. Determination of the conductor size is to be in accordance with the Conductor diameter test in the Standard for Wire and Cable Test Methods, UL 2556. MARCH 9, 2015 LOW VOLTAGE LED WIRE - UL 2592 6UL COPYRIGH
44、TED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.1.6 No particular combination of the individual strands of a conductor is required; however, simple bunching (untwisted strands) shall not be used. 5.1.7 The individual strands used in making up a condu
45、ctor are usually drawn to a specied diameter that does or does not correspond to the diameter of an established gauge number. The individual strands are not required to be all of the same diameter. 5.1.8 The length of lay of the strands in every layer of a concentric-lay-stranded conductor shall be
46、8 16 times the outside diameter of that layer. The direction of lay of the outer layer shall be left-hand. The length of lay shall be determined in accordance with the Length of Lay test in the Standard for Wire and Cable Test Methods, UL 2556. 5.1.9 The length of lay of the strands in a single-bunc
47、h bunch-stranded conductor shall not be greater than indicated in Table 5.5. The direction of lay shall be left-hand. The length of lay shall be determined in compliance with the method Length of Lay in the Standard for Wire and Cable Test Methods, UL 2556. Table 5.5 Maximum length of lay of strands
48、 in a single-bunch bunch-stranded conductor AWG (mm 2 ) size of conductor Inches (mm) 18 (0.807), 17 (1.02) 1-1/4 32 16 (1.28), 15 (1.62) 1-1/2 38 14 (2.04), 13 (2.58) 1-3/4 44 12 (3.24), 11 (4.09) 2 51 10 (5.16) 2-1/2 64 5.2 Metal coating 5.2.1 The individual strands of a copper conductor shall eac
49、h have a continuous coating of tin or other metal or alloy if the conductor is insulated with a material that is capable of corroding unprotected copper. 5.3 Separator 5.3.1 A separator between the conductor and the insulation is not required, but shall be permitted to keep the insulation from penetrating between the strands of a stranded conductor. A separator shall be colored or opaque to make the separator clearly distinguishable from the conductor once the ins
