UL 758 Appliance Wiring Material

102 Pages·2012·0.58 MB·English

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UL 758
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UL COPYRIGHTED MATERIAL –
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JULY15,2010−UL758 tr1
UL Standard for Safety for Appliance Wiring Material, UL 758
Second Edition, Dated April 24, 2006
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SummaryofTopics c
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TherevisionsforUL758arebeingissuedto: n
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DefinemethodfordeterminingtheequivalentAWGsizeforrectangularconductorsin s
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5.1.1; o
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Additionofexemptionforexpendablecomponentsin7.2.4and20.2; a
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AdditionofASTMD471oilasstandardtestliquidin15.1; B
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Clarificationoftheformofthesamplesforthedeformationtestin19.1; o
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CorrectionstodeformationtestinTable19.1; o
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Modificationtothedurabilityofink-printtestin26.1; u
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ClarificationofdielectricmethodIsamplepreparationin28.5; r U
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Additionoftesttemperaturesinthecapacitanceandrelativepermittivitytest B
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temperaturesin37.1and37.2; W
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ClarificationofbendingtestsforsiliconeinsulationcoveredwithabraidinTable7.2and U
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Table7.3; H
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EditorialrevisiontocorrectconversioninTable13.1andTable13.2; C
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Deletionofreferencetoformofmaterialin7.2.4,13.2.1,and20.2; G
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Relocationofconductorconstructionto5.7.4; E
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Revisionto7.2.2,7.2.4,14.3,16.1torelocatetestmethodreference. O
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The revised requirements are substantially in accordance with Proposal(s) on this subject dated February 7
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All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or /2
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tr2 JULY15,2010−UL758
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October1,2015 Paragraphs5.1.1,5.3.2,5.6.1,8.4,13.3.2,13.3.3,18.1,19.1, F
22.1,26.1,34.1,35.1,37.1,37.2,48.2(b),(d),(e),(f);Tables o
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UL COPYRIGHTED MATERIAL –
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APRIL 24, 2006
(Title Page Reprinted: July 15, 2010)
ANSI/UL 758-2010
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UL 758
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Standard for Appliance Wiring Material
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First Edition – July, 2000 o
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Second Edition lo
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April 24, 2006 B
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This ANSI/UL Standard for Safety consists of the Second Edition including o
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revisions through July 15, 2010. g
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The most recent designation of ANSI/UL 758 as an American National Standard W
(ANSI)occurredonJuly15,2010.ANSIapprovalforastandarddoesnotinclude u
the Cover Page, Transmittal Pages, Title Page, or effective date information. F
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Comments or proposals for revisions on any part of the Standard may be s
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submitted to UL at any time. Proposals should be submitted via a Proposal B
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Request in UL’s On-Line Collaborative Standards Development System (CSDS) W
at http://csds.ul.com. U
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sole and exclusive property of UL. E
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COPYRIGHT© 2010UNDERWRITERSLABORATORIESINC. E
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2 APPLIANCEWIRINGMATERIAL-UL758 JULY15,2010
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JULY15,2010 APPLIANCEWIRINGMATERIAL-UL758 3
CONTENTS
INTRODUCTION D
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1 Scope ...............................................................................5
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2 General ..............................................................................6 n
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2.1 Components ...................................................................6
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2.2 Units of measurement .........................................................6A s
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2.3 Undated references .............................................................7 o
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CONSTRUCTION a
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3 General ..............................................................................7 B
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4 Materials ............................................................................11 H
5 Conductor...........................................................................12 o
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5.1 General ......................................................................12 g
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5.2 Metal ........................................................................14 o
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5.3 Size and cross-sectional area ...................................................16 W
5.4 Metal coating .................................................................17 u
5.5 Joints ........................................................................17 F
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5.6 Resistance ...................................................................17 r U
5.7 Stranding .....................................................................18 s
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5.8 Separator ....................................................................20 B
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6 Optical Fiber Member(s) ..............................................................21 W
7 Insulation ...........................................................................21 U
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7.1 General ......................................................................21 U
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7.2 Materials .....................................................................21 H
7.3 Thickness ....................................................................25 U
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8 Coverings ...........................................................................28 C
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9 Fillers .............................................................................28A E
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10 Binders ............................................................................29 G
11 Shield(s) ...........................................................................29 E
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12 Cable Assembly ....................................................................29 E
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13 Overall Jacket .....................................................................30 T
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13.1 General .....................................................................30 O
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13.2 Materials ....................................................................31 IC
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13.3 Thickness ...................................................................31 C
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PERFORMANCE T
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TESTS FOR THERMAL AND CHEMICAL PROPERTIES 32
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14 Physical Properties of Insulation and Jacket, Unaged and Air Oven Aged .................37 : 9
15 Physical Properties of Insulation and Jacket, Oil Immersion Aging ........................38 /1
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16 Physical Properties of Gasoline Resistant Insulation and Jacket ..........................39 /2
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17 Physical Properties of Insulation and Jacket, Sunlight Resistance ........................39 1
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18 Conductor Corrosion Test............................................................40 - 1
19 Deformation Test (Thermoplastics and Class XL Only) ..................................40 :2
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20 Flexibility Test of Insulation, Covering, and Jacket .....................................40B A
21 Heat Shock Test (Thermoplastic Materials Only)........................................42 M
22 Cold Bend Test ...................................................................42A
23 Delamination Test .................................................................42A
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4 APPLIANCEWIRINGMATERIAL-UL758 SEPTEMBER3,2008
24 Shrinkback Test – Special Rating TV Wires Only ......................................42B
25 Ozone Resistance Test – Special Rating TV Use Wires Only ............................44
26 Durability of Ink-Print Test ...........................................................45
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TESTS FOR MECHANICAL PROPERTIES c
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27 Crush Resistance Test ..............................................................46 n
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TESTS FOR ELECTRICAL PROPERTIES s
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28 Dielectric Test, Method I .............................................................47 n
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29 Dielectric Test, Method II ............................................................49 a
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30 Dielectric Test, Method III ............................................................50 e
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31 High-Voltage DC Wire Dielectric Voltage-Withstand Test, Method I .......................50 B
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32 High-Voltage DC Wire Dielectric Voltage-Withstand Test, Method II .......................51 H
33 High-Voltage Cut-Through Test, Special Rated TV Wire Only ............................52 o
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34 Short Term Insulation-Resistance Test in Water at Room Temperature (Wet Rated AWM) ..54 g
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35 Long Term Insulation-Resistance Test in Water at Elevated Temperature (Wet Rated AWM).54 o
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36 Temperature Correction Factor (Wet Rated AWM) ......................................57 W
37 Capacitance and Relative Permittivity Tests (Wet Rated AWM)...........................59 u
38 Stability Factor (Wet Rated AWM) ....................................................60 F
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TESTS FOR FLAME PROPERTIES s
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39 Horizontal Flame Test for Internal Wiring ..............................................60 W
40 Cable Flame Test ...................................................................60 U
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41 VW-1 Flame Test ...................................................................60 U
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42 FT-1 Flame Test ..................................................................60A H
43 FT-2 Flame Test ..................................................................60A U
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MANUFACTURING AND PRODUCTION TESTS E
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44 Test for Continuity of Conductors ....................................................61 E
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45 Spark Test .........................................................................62 E
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46 Production-Line Dielectric Test .......................................................63 T
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MARKINGS IC
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47 Surface Marking of AWM ............................................................63 O
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48 Markings on Tag, Reel, or Carton.....................................................63 T
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49 Multiple Markings ...................................................................65 3
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SEPTEMBER3,2008 APPLIANCEWIRINGMATERIAL-UL758 5
INTRODUCTION
1 Scope
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1.1 These requirements cover Appliance Wiring Material (AWM) in the form of single insulated c
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conductors, multi-conductor cables, optical fibers, individual insulated conductors, and fiber optic
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members for use as components in multi-conductor cables. n
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1.2 The appliance wiring material covered by the requirements of this Standard are solely for use as s
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factory-installed wiring either within the overall enclosure of appliances and other equipment (internal o
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wiring) or as external interconnecting cable for appliances (external wiring), or for further processing as n
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components in multi-conductor cables. a
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1.3 These requirements do not cover any wire, cable, or cord types that are presently covered in the B
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National Electrical Code (NEC), NFPA 70, and are not intended for installation in buildings or structures H
in accordance with the NEC except within the scope of the installation instructions of the end-product for o
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1.4 These requirements cover appliance wiring material with operating temperatures from a minimum W
60°C (140°F) dry temperature rating and voltage ratings from a minimum 30-volt rating. Conductor size u
ranges from 50 AWG to 2000 kcmil. Appliance wiring material (AWM) composed entirely of optical fiber F
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members or electrical conductors in combination with optical fiber members are also covered by these r U
requirements. s
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1.5 These requirements do not cover the optical performance of any optical-fiber member or group of W
such members. U
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1.5.1 These requirements do not cover constructions which utilize flat, insulated conductors that are not H
laid parallel. The requirements for these products are found in the the Standard for Flexible Materials U
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Interconnect Constructions, UL 796F. C
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1.5.1addedSeptember3,2008 N
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1.6 In addition to these constructions, this Standard establishes guidelines for the evaluation of special L
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constructions that, due to their specific end product use, are not required to meet all of the requirements C
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for general construction AWM. R
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1.7 The final acceptance of AWM is dependent upon its use in complete equipment that conforms with IC
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the standards applicable to such equipment. C
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6 APPLIANCEWIRINGMATERIAL-UL758 SEPTEMBER3,2008
2 General
2.1 Components
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2.1.1 Except as indicated in 2.1.2, a component of a product covered by this Standard shall comply with c
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the requirements for that component.
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2.1.2 A component is not required to comply with a specific requirement that:
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a) Involves a feature or characteristic not required in the application of the component in the o
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b) Is superseded by a requirement in this standard. e
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2.1.3 A component shall be used in accordance with its rating established for the intended conditions of H
use. o
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2.1.4 Specific components are incomplete in construction features or restricted in performance o
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capabilities. Such components are intended for use only under limited conditions, such as certain W
temperatures not exceeding specified limits, and shall be used only under those specific conditions. u
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2.1.5 Polymeric materials evaluated for its intended use, are not prohibited from being used in the r U
insulation and jacket applications indicated in Table 2.1. s
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Table 2.1 W
Polymeric materials for use in wire and cable and associated AWM ratings U
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Minimumaveragethicknessof H
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insulation, N
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AWMrating inch (mm) Compound’suseorrating H
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Sunlightresistant 0.030 0.76 OuterPVCorTPEinsulationorjacket N
ratedfor720hourssunlightresistance G
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60°CWet 0.030 0.76 PVCinsulationratedforuseinTypeTW L
thermoplastic-insulatedwire E
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60°Cor75°CWet 0.030 0.76 PVCinsulatedratedforuseinTypes T
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THWorTHHWthermoplastic-insulated O
wire N
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60°Cor75°CWet 0.015 0.38 PVCinsulationratedforuseinType S
THWNthermoplastic-insulatedwire C
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60°C,75°C,or90°CWet 0.015 0.38 PVCinsulationratedforuseinType L
THWN-2thermoplastic-insulatedwire T
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