1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 4 Armored CableUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DI
2、STRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Armored Cable, UL 4 Fifteenth Edition, Dated January 15, 2004 SUMMARY OF TOPICS This revision of ANSI/UL 4 includes an updated title page to reect reaffirmation of ANSI approval. Text that has been changed in any manner or impacted by
3、ULs electronic publishing system is marked with a vertical line in the margin. Changes in requirements are marked 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 revis
4、ed requirements are substantially in accordance with Proposal(s) on this subject dated July 26, 2013. 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 otherwis
5、e without prior permission of UL. UL provides 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, ind
6、irect or similar damages, including loss of 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 a
7、ny damage ever exceed the price paid for this 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 a
8、ttorneys fees) resulting from any error or 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
9、 future effective dates as indicated in the 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. OCTOBER 16, 2013 UL 4 tr1UL COPYRIGHTED MAT
10、ERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 16, 2013 UL 4 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 16, 2004 (Title Page Reprinted: October 16, 2013)
11、1 UL 4 Standard for Armored Cable First Edition November, 1917 Second Edition July, 1924 Third Edition October, 1929 Fourth Edition March, 1941 Fifth Edition January, 1948 Sixth Edition January, 1957 Seventh Edition March, 1959 Eighth Edition June, 1962 Ninth Edition September, 1968 Tenth Edition Ja
12、nuary, 1974 Eleventh Edition October, 1974 Twelfth Edition June, 1980 Thirteenth Edition April, 1986 Fourteenth Edition January, 1996 Fifteenth Edition January 16, 2004 This ANSI/UL Standard for Safety consists of the Fifteenth Edition including revisions through October 16, 2013. The most recent de
13、signation of ANSI/UL 4 as an American National Standard (ANSI) occurred on October 14, 2013. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. The Department of Defense (DoD) has adopted UL 4 on June 14, 1989. The publication
14、of revised pages or a new edition of this Standard will not invalidate the DoD adoption. 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 Standards Development System
15、(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 shall remain the sole and exclusive property of UL. COPYRIGHT
16、2013 UNDERWRITERS LABORATORIES INC. ANSI/UL 4-2008 (R2013)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 16, 2008 ARMORED CABLE - UL 4 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBU
17、TION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 References .5 3 Units of Measurement .5 CONSTRUCTION 4 Materials .5 5 Conductors .6 5.1 General .6 5.2 Circuit conductors 6 5.3 Grounding conductor 7 5.4 Fibrous coverings .7 5.5 Lay of conductors 9 6 Fillers 9 7 Armor .9 7.1 General
18、 .9 7.2 Dimensions of unformed metal strip .10 7.3 Weight .10 7.4 Diameter .12 7.5 Interior of armor .12 7.6 Bonding strip .12 8 Bushings 12 PERFORMANCE TESTS 9 Continuity of Conductors 13 10 Zinc Coating .13 11 Tightness of Armor on Conductors 15 12 Flexibility 15 13 Elongation .17 14 Tension 19 15
19、 Resistance of Armor 19 16 Dielectric Voltage-Withstand .22 MARKINGS 17 Details .23 OCTOBER 16, 2008 ARMORED CABLE - UL 4 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. OCTOBER 16, 2008 ARMORED CABLE - U
20、L 4 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover interlocked steel or aluminum armored cables that contain 2, 3, or 4, 14 1 AWG insulated circuit conductors with or without grounding cond
21、uctors and are for use as Type AC Armored Cable in accordance with Article 320 and other applicable parts of the National Electrical Code (NEC), ANSI/NFPA 70. 1.2 These requirements cover cables for use at potentials of 600 V or less and at temperatures that are not higher than 75C (167F) for Type A
22、CTH, or 90C (194F) for Types ACHH and ACTHH, depending upon the temperature rating of the insulated conductors used. Cables with aluminum armor are suitable only for use with connectors other than the direct-bearing set-screw type and only in alternating-current circuits. 2 References 2.1 Any undate
23、d 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. 2.2 Wherever the designation UL 1581 is used in this wire standard, reference is to be made to the designated part(s) of the Reference St
24、andard for Electrical Wires, Cables, and Flexible Cords (UL 1581). 3 Units of Measurement 3.1 In addition to being stated in the inch/pound units that are customary in the USA, each of the requirements in this standard is also stated in units that make the requirement conveniently usable in countrie
25、s employing the metric system (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 units is to be used when a requirement is applied in metric terms. 3.1 revised October 16,
26、 2008 CONSTRUCTION 4 Materials 4.1 Each material used in an armored cable shall be compatible with all of the other materials used in the cable. OCTOBER 16, 2008 ARMORED CABLE - UL 4 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5 Conduct
27、ors 5.1 General 5.1.1 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 the American Society for Testing and Materials Standard Specication for Soft or Annealed Copper Wire, ASTM B 3. Solid 128A W G
28、aluminum conductors shall comply with the requirements for aluminum-wire stock (aluminum-alloy conductor material). All aluminum conductors shall comply with the requirements for semi-annealed 8000 series conductors in Section 10 of UL 1581. Copper-clad aluminum conductors shall comply with the requ
29、irements for copper-clad aluminum conductors in Section 11 of UL 1581. In a given cable, all conductors need not be of the same metal. 5.1.1 revised October 16, 2008 5.1.2 A copper conductor shall not be smaller than 14 AWG and shall not be larger than 1 AWG. An aluminum or copper-clad aluminum cond
30、uctor shall not be smaller than 12 AWG and shall not be larger than 1 AWG. 5.1.3 Each61A W Gconductor shall be stranded. Conductors 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, UL
31、 83, except as modied in this Section. 5.2 Circuit conductors 5.2.1 The circuit conductors in Type ACHH cable shall be Type RHH or Type XHH complying with the Standard for Thermoset-Insulated Wires and Cables (UL 44). 5.2.2 The circuit conductors in Type ACTH cable shall be Type THW complying with t
32、he Standard for Thermoplastic-Insulated Wires and Cables (UL 83). 5.2.3 The circuit conductors in Type ACTHH cable shall be Type THHN complying with the Standard for Thermoplastic-Insulated Wires and Cables (UL 83) or insulated conductors that comply with the requirements for conductors for use in T
33、ype ACTHH cable in UL 83 (these conductors have insulation of PVC or a thermoplastic other than PVC and do not have a nylon jacket). 5.2.4 Surface marking of the conductors indicated in 5.2.1 5.2.3 is not required, however, they shall not be marked with any designation such as THWN, THW, or RHW that
34、 indicates that they are for use in wet locations. 5.2.5 Conductors shall be without splices or joints of any kind within the armor, other than those that comply with the requirements for splices and joints in the applicable standard mentioned in 5.2.1 5.2.3. OCTOBER 16, 2008 ARMORED CABLE - UL 4 6U
35、L COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.3 Grounding conductor 5.3.1 One or more grounding conductors are acceptable in a cable but are not required. Each grounding conductor shall be either of the same construction as the circuit co
36、nductors, or an uninsulated copper or aluminum conductor with or without a paper covering. A maximum of one uninsulated grounding conductor is acceptable in a cable. Each grounding conductor shall be cabled with the circuit conductors and shall be entirely in one location in the cable that is, it sh
37、all not be divided into two or more parts cabled separately or distributed helically and, if insulated, shall be identied as indicated in 17.4. Each grounding conductor shall not be smaller than indicated in Table 5.1 or Table 5.2. Provision of an uninsulated grounding conductor with or without a pa
38、per covering or insulated grounding conductors does not remove the need for the aluminum bonding strip required in 7.6.1. 5.4 Fibrous coverings 5.4.1 Uninsulated grounding conductor with a paper covering 5.4.1.1 A covering is not required on an uninsulated grounding conductor but, if provided, shall
39、 consist of a strip of unreinforced 30-lb or 47-g/m 2 or heavier kraft paper that is at least 3 mils or 0.08 mm thick and is applied either: a) Longitudinally with an overlap of approximately 100 percent and a seal to keep the paper from unravelling, or b) Helically with an overlap of at least 50 pe
40、rcent. The paper shall be saturated with a preservative and moisture-resistant compound. 5.4.2 Conductors in Type ACHH cable 5.4.2.1 All thermoset-insulated conductors (plus any uninsulated grounding conductor with or without a paper covering) in armored cable shall have an overall covering of brous
41、 material applied directly over the grouped conductors in the cable. The overall brous covering shall be continuous and of a uniform cross section, and shall be at least 5 mils or 0.13 mm thick where 25-mil or 0.64-mm armor is employed and shall be at least 8 mils or 0.20 mm thick where 34-mil or 0.
42、86-mm armor is employed. All brous coverings shall be saturated with a preservative and moisture-resistant compound. JANUARY 16, 2004 ARMORED CABLE - UL 4 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.4.3 Conductors in Type ACTH and ACT
43、HH cable 5.4.3.1 Each insulated circuit conductor and any insulated grounding conductor in a Type ACTH or ACTHH armored cable shall have an individual brous covering applied directly over the nished insulated conductor. The covering shall be of paper and shall comply with the thickness, saturation,
44、and application requirements in 5.4.1.1. 5.4.3.2 In addition to having the covering required in 5.4.1 on each of its thermoplastic-insulated conductors, a Type ACTH or ACTHH cable that is provided with an uninsulated grounding conductor without a paper covering shall have an overall covering of brou
45、s material applied directly over the grouped circuit and grounding conductors to keep the bare conductor from contacting the armor. The overall brous covering shall be continuous and of a uniform cross section and shall consist of a strip of unreinforced 30-lb or 47-g/m 2 or heavier kraft paper that
46、 is at least 5 mils or 0.13 mm thick and is applied helically with an overlap of at least 50 percent. The paper shall be saturated with a preservative and moisture-resistant compound. Table 5.1 Grounding conductor in Type ACTH cable AWG size of circuit conductor Smallest AWG size of grounding conduc
47、tor Copper Aluminum or copper-clad aluminum Copper Aluminum or copper-clad aluminum 14 12 14 12 12 10 12 10 1 08 86 1 0 8 64 41 8 6 21 6 4 Table 5.2 Grounding conductor in Type ACHH or ACTHH cable AWG size of circuit conductor Smallest AWG size of grounding conductor Copper Aluminum or copper-clad a
48、luminum Copper Aluminum or copper-clad aluminum 14 12 14 12 12 10 12 10 1 08 86 1 0 8 64 42 8 6 31 1 6 4 5.4.3.3 If the conguration, size, and number of conductors in a cable containing thermoplastic-insulated circuit conductors and an uninsulated grounding conductor with a paper covering results in
49、 the armor bearing on the paper covering on the grounding conductor, the armor shall be kept from cutting the paper covering on the grounding conductor by an overall covering of brous material applied directly over the grouped circuit and grounding conductors. The overall brous covering shall comply with 5.4.3.2. JANUARY 16, 2004 ARMORED CABLE - UL 4 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5
