1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1277 Electrical Power and Control Tray Cables with Optional Optical-Fiber MembersUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL
2、COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Electrical Power and Control Tray Cables with Optional Optical-Fiber Members, UL 1277 Fifth Edition, Dated April 21, 2010 SUMMARY OF TOPICS: This revision of ANSI/UL 127
3、7 includes the following changes in requirements: 1. Revision of the Dielectric Voltage-Withstand Test to Allow Testing with DC Voltage Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. Changes in requirements are m
4、arked with a vertical line in the margin and are followed by an effective date note indicating the date of publication or the date on which the changed requirement becomes effective. The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated May 3, 2013.
5、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, either
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7、ising 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 this Standard, regardless of the form of the claim. Users of
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9、ic 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 note following the affected item. The prior text for requi
10、rements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. AUGUST 20, 2013 UL 1277 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 20,
11、2013 UL 1277 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 21, 2010 (Title Page Reprinted: August 20, 2013) 1 UL 1277 Standard for Electrical Power and Control Tray Cables with Optional Optical-Fiber Members F
12、irst Edition January, 1986 Second Edition March, 1989 Third Edition March, 1996 Fourth Edition November, 2001 Fifth Edition April 21, 2010 This ANSI/UL Standard for Safety consists of the Fifth Edition including revisions through August 20, 2013. The most recent designation of ANSI/UL 1277 as an Ame
13、rican National Standard (ANSI) occurred on August 20, 2013. 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
14、 be submitted via a Proposal Request 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
15、rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2013 UNDERWRITERS LABORATORIES INC. ANSI/UL 1277-2013UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL APRIL 21, 2010 UL 1277 2 No Text on This Page
16、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 Units of Measurement .6 3 References .6 CONSTRUCTION 4 Materials .6 5 General 6 6 All Conductors 7 7 Compact-Stranded, Sector Conductors 8 8 Grounding Conduct
17、ors .8 9 Circuit Conductors .11 9.1 General 11 9.2 NEC types 11 9.3 Other insulated conductors .12 9.4 Thermocouple-extension wires 13 9.5 Insulated sector conductors .13 10 Optical-Fiber Member(s) .13 11 Assembly 14 11.1 Optical-ber member(s) and circuit conductors .14 11.2 Fillers .16 11.3 Binders
18、 .16 11.4 Shield(s) 17 11.5 Metal sheath or armor 18 12 Overall Jacket 18 12.1 Material and application .18 12.2 Properties .18 12.3 Thicknesses .20 PERFORMANCE 13 Continuity Test of Conductors 21 14 Dielectric Voltage-Withstand Test .21 15 Vertical-Tray Flame Test .22 16 Limited Smoke .23 17 Cold B
19、end Test of Complete Cable .23 18 Cold-Impact Test .24 19 Crushing Test Cable Marked for Direct Burial 24 20 Sunlight-Resistance Test 25 21 Deformation Test of Overall Thermoplastic or XL Jacket .25 22 Heat Shock Test of Overall Thermoplastic Jacket .26 23 Impact Test 26 24 Crushing Test 28 25 Test
20、for Durability of Ink Printing 29 APRIL 21, 2010 UL 1277 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARKINGS 26 Color of Insulated Grounding Conductor .29 27 Identication of Ungrounded Circuit Conductor(s) .30 28 Identication of Ground
21、ed Circuit Conductor(s) .30 29 Information on the Cable 31 30 Information on the Tag, Reel, or Carton .34 31 Date of Manufacture 36 32 Insulated Equipment-Grounding Conductors .36 33 Isolated-Grounding Conductors .38 34 Additional Conductor Information .39 35 Compact-Stranded Copper Conductors 39 36
22、 Copper-Clad Aluminum 39 37 Aluminum 40 38 Responsibility for the Insulated Conductors 40 38.1 No identication needed 40 38.2 Only factory identication needed 40 38.3 Organization and factory identication needed .40 APRIL 21, 2010 UL 1277 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCT
23、ION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover electrical power and control cables consisting of either two or more current-carrying copper, aluminum, or copper-clad aluminum circuit conductors, or one or more pairs of thermocouple-extension wires. T
24、hermocouple-extension wires and circuit conductors shall not be mixed in the same cable. These cables are constructed with or without either or both: a) One bare or one or more insulated grounding conductor(s), and b) One or more individually jacketed optical-ber members, all under an overall jacket
25、. These electrical and composite electrical/optical-ber cables are intended for use (optical and electrical functions associated in the case of a composite cable) in accordance with Article 336 and other applicable parts of the National Electrical Code (NEC), ANSI/NFPA 70 in cable trays, in raceways
26、, and where supported in outdoor locations by a messenger wire. 1.2 The conductors for these cables are described in Sections 9.2 (NEC types) and 9.3 (other conductors). Cables are surface marked with the conductor type letters and/or with the temperature and “wet”, “dry”, or “wet or dry” ratings ap
27、plicable to the insulation. Cables for direct burial are so marked on the surface. Cables that have a sunlight-resistant jacket are surface marked “sun res” or “sunlight resistant”. Cables may include one or more optical-ber member(s) and are surface marked to so indicate. Cables that are surface ma
28、rked “oil resistant II” have a jacket that is for exposure to oil at temperatures not in excess of 75C (167F). Cables that are surface marked “oil resistant I” have a jacket that is for exposure to oil at temperatures not in excess of 60C (140F). Each insulated conductor that is oil resistant II, oi
29、l resistant I, VW-1, gasoline-resistant, or has another individual conductor use is individually so marked. Cables that are surface marked -ER are for use as exposed runs between a cable tray and utilization equipment where the cables are continuously supported and protected against physical damage
30、using mechanical protection such as struts, angles, or channel. 1.3 The overall jacket on these cables is a “gas/vapor-tight continuous sheath” in the sense discussed in Sections 501.15(D) and 501.15(E) of the NEC (see 12.1.1). However, these requirements do not cover investigation of these cables f
31、or transmission of gases or vapors through the core so, when these cables are used in a hazardous location, they may need to be sealed as described in the NEC. 1.4 These cables may contain one or more metal shields but do not have a metal sheath or armor. Electrical cables with a metal sheath or arm
32、or are covered as Type MC in the Standard for Metal-Clad Cables, UL 1569. 1.5 Connectors and other ttings for these cables are covered in the Standard for Conduit, Tubing, and Cable Fittings, UL 514B. 1.6 These requirements do not cover the optical or other performance of any optical-ber member or g
33、roup of such members. APRIL 21, 2010 UL 1277 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2 Units of Measurement 2.1 In addition to being stated in the inch/pound units that are customary in the USA, each numerical requirement in this st
34、andard is also stated in units that make the requirement conveniently usable in countries employing the metric systems (practical SI). Equivalent although not necessarily exactly identical results are to be expected from applying a requirement in USA or metric terms. Equipment calibrated in metric u
35、nits is to be used when a requirement is applied in metric terms. 3 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. 3.2 Wherever the designation “UL 1581” is us
36、ed in this wire standard, reference is to be made to the designated part(s) of the Reference Standard for Electrical Wires, Cables, and Flexible Cords, UL 1581. CONSTRUCTION 4 Materials 4.1 Only materials that are acceptable for the particular use shall be employed in a cable. 4.2 Each material used
37、 in a cable shall be compatible with all of the other materials used in the cable. 5 General 5.1 Power and control tray cable shall be designated as Type TC and shall comply in all respects with the applicable requirements for construction details, test performance, and markings. 5.2 The electrical
38、insulation in each of the following cables shall be of a material that is acceptable for use in wet locations: a) Cable that is marked for direct burial. b) Cable that is intended for use in wet locations. APRIL 21, 2010 UL 1277 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DIS
39、TRIBUTION WITHOUT PERMISSION FROM UL 6 All Conductors 6.1 Except for the thermocouple alloy for thermocouple-extension cables, only copper, copper-clad aluminum, or an acceptable aluminum alloy shall be used for the conductors in a cable. Soft-annealed copper shall comply with ASTM B 3. Solid alumin
40、um conductors in sizes 12 8 AWG shall comply with the requirements for aluminum-wire stock (aluminum-alloy conductor material). All other aluminum conductors shall comply with the requirements for semi-annealed 8000 series aluminum conductors in Requirements for Aluminum Conductors of an 8000 Series
41、 Alloy, Section 10, of the Reference Standard for Electrical Wires, Cables, and Flexible Cords, UL 1581. Copper-Clad aluminum conductors shall comply with the requirements in Requirements for Copper-Clad Aluminum Conductors, Section 11 of UL 1581. 6.2 A copper conductor shall not be smaller than 18
42、AWG and shall not be larger than 1000 kcmil. An aluminum or copper-clad aluminum conductor shall not be smaller than 12 AWG and shall not be larger than 1000 kcmil. 6.3 Each 6 4/0 AWG and 250 1000 kcmil conductor shall be stranded. An 18 or 16 AWG copper conductors shall comply with the requirements
43、 for xture wire conductors in the Standard for Fixture Wire, UL 66. A 14 AWG or larger copper, or 12 AWG or larger aluminum conductor shall comply with the requirements in the Standard for Thermoset-Insulated Wires and Cables, UL 44, or in the Standard for Thermoplastic-Insulated Wires and Cables, U
44、L 83, except as modied in this section. 6.4 Any joint in a conductor shall comply with the applicable standard indicated in 9.2, except that a splice is acceptable in an 18 10 AWG stranded conductor as a whole if the splice (butt splice) is made by machine brazing or welding such that the resulting
45、solid section of the stranded conductor is not longer than 1/2 inch or 13 mm, the splice does not increase the diameter of the conductor, there are no sharp points, and the distance between splices in a single conductor does not average less than 3000 ft or 915 m in any reel length of that single in
46、sulated conductor. A butt splice shall be made before insulating or after insulating and prior to further processing. Butt splices of stranded conductors made after insulating and splices of insulated solid conductors made with other than the original insulation shall be the subject of an investigat
47、ion that includes tests to determine that all electrical, physical, and mechanical properties of the original system of insulation and any jacket on the conductor have been restored at the point of each splice. All nished, insulated stranded conductors containing a butt splice or splice made with ot
48、her than the original insulation shall not be marked as an NEC type but, for polarity identication, color coding and/or surface printing of hash marks, numbers, color names, or the like are acceptable. APRIL 21, 2010 UL 1277 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIB
49、UTION WITHOUT PERMISSION FROM UL 7 Compact-Stranded, Sector Conductors 7.1 Compact-stranded, sector conductors shall be shaped as a 120 segment of a circle. 7.2 Compact-stranded, sector conductors shall comply with all of the requirements specied for All Conductors, Section 6, with the following exceptions: a) Sector conductors shall be limited to sizes 1/0 AWG 750 kcmil. b) The conductor size shall be determined by the resistance method only per UL 1581, Section 220. c) For purposes of c
