1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1640 Portable Power-Distribution Equipment STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIA
2、L NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Portable Power-Distribution Equipment, UL 1640 Fourth Edition, Dated November 14, 2016 Summary of Topics This new edition of UL 1640 was issued to incorporate the following changes in requ
3、irements: 1. Revision of the Scope of UL 1640 2. Update References to Standards UL 50 and UL 50E in UL 1640 3. Addition of Requirements for the Use of Weather Resistant Receptacles for Equipment Rated for Outdoor Use 4. Clarication for Requirements for Thermocouples in Paragraph 19.4 5. Editorial Co
4、rrection of Paragraph 61.1 The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated May 27, 2016 and August 19, 2016. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any mea
5、ns, electronic, mechanical photocopying, recording, or otherwise 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 wi
6、ll UL be liable for any special, incidental, consequential, indirect 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 po
7、ssibility 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 the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense
8、, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. NOVEMBER 14, 2016 UL 1640 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUC
9、TION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 14, 2016 UL 1640 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 14, 2016 1 UL 1640 Standard for Portable Power-Distribution Equipment The rst edition
10、was titled Portable Power Distribution Units. First Edition October, 1995 Second Edition July, 2000 Third Edition October, 2012 Fourth Edition November 14, 2016 This ANSI/UL Standard for Safety consists of the Fourth Edition. The most recent designation of ANSI/UL 1640 as an American National Standa
11、rd (ANSI) occurred on November 14, 2016. 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-
12、Line Collaborative Standards Development System (CSDS) at https:/. 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
13、the sole and exclusive property of UL. COPYRIGHT 2016 UNDERWRITERS LABORATORIES INC. ANSI/UL 1640-2016UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 14, 2016 PORTABLE POWER-DISTRIBUTION EQUIPMENT - UL 1640 2 No Text on This PageUL
14、COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .7 2 Components 8 3 Units of Measurement .8 4 Undated References 8 5 Glossary .8 PART 1 ALL EQUIPMENT CONSTRUCTION 6 General .10 7 Current-Carrying Parts 11 7.1 Gener
15、al 11 7.2 Bus bars .11 7.3 Support and securement of live parts 16 7.4 Internal wiring .17 8 Electrical Insulation Material .20 9 Enclosure .23 9.1 General 23 9.2 Specic enclosures 23 9.3 Cast metal 23 9.4 Sheet metal 24 9.5 Doors and covers .27 9.6 Inlet and receptacle covers .32 9.7 Polymeric .33
16、9.8 Enclosure of switches, circuit breakers, or fuses 34 9.9 Accessibility of live parts .34 10 Enclosure Performance 38 11 Corrosion Protection 39 12 Grounding and Bonding .41 12.1 General .41 12.2 Output receptacle grounding .43 13 Input Connections 43 13.1 General .43 13.2 Cord-connected equipmen
17、t 44 13.3 Multi-conductor inlet input .46 13.4 Single-conductor inlets and plugs 46 13.5 Interlocked inlet assemblies .47 13.6 Sequentially-interlocked inlet assemblies 47 13.7 Bus bars 47 14 Output Connections .47 14.1 General .47 14.2 Receptacles .48 15 Overcurrent Protection 48 15.1 General .48 1
18、5.2 Circuit breakers 49 15.3 Fuses .50 NOVEMBER 14, 2016 PORTABLE POWER-DISTRIBUTION EQUIPMENT - UL 1640 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 15.4 Fuseholders .51 16 Spacings 51 17 Switches .56 18 Transformers .56 PERFORMANCE 19
19、General 57 20 Temperature Test .58 21 Clamped-Joint Temperature Test .60 22 Dielectric Voltage-Withstand Test .61 22.1 General .61 22.2 Clamped insulating joint .61 22.3 Insulating barriers 62 23 Strain-Relief Test .62 24 Resistance to Rain Test .62 25 Icing Test 65 26 Gasket Tests .65 27 Spring-Clo
20、sing Cycling Test 66 28 Metallic Coating Thickness Test 66 RATINGS 29 Details .67 MARKINGS 30 General 68 31 Public Access 69 32 Conductors in Parallel .69 33 Enclosure Type .69 34 Neutral Connection .70 35 Qualied Personnel .70 36 Receptacle Ratings .71 37 Multi-Pole Receptacle Conguration .71 38 Si
21、ngle-Pole Inlets or Output Receptacles 71 39 Supply Cord Without Attachment Plug .72 40 Switches or Circuit Breakers .72 PART 2 BUS BAR CLAMPS CONSTRUCTION 41 General 72 PERFORMANCE 42 General 73 MARKINGS 43 Details .74 NOVEMBER 14, 2016 PORTABLE POWER-DISTRIBUTION EQUIPMENT - UL 1640 4UL COPYRIGHTE
22、D MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PART 3 CABLE-SPLICING BLOCKS CONSTRUCTION 44 General 74 PERFORMANCE 45 General 76 46 Temperature Test .76 47 Loose Connection Test 76 48 Drop Test 76 49 Pullout Test 76 50 Crushing Test 77 51 Insulation Res
23、istance and Dielectric Voltage-Withstand Test .77 52 Impact Test 77 RATINGS 53 Details .77 MARKINGS 54 Details .77 PART 4 CONSTRUCTION-SITE EQUIPMENT FOR TEMPORARY INSTALLATIONS IN ACCORDANCE WITH ARTICLE 590 OF THE NEC CONSTRUCTION 55 General 78 56 Mounting Legs .78 57 Ground-Fault Protection for P
24、ersonnel .78 58 Receptacles 79 59 Supply Connection 79 60 Overcurrent Protection 79 61 Enclosures .80 62 Spacings 80 PERFORMANCE 63 General 81 64 Loading Tests 81 65 Resistance to Rain Test .81 66 Door Endurance Test .81 MARKINGS 67 Details .81 NOVEMBER 14, 2016 PORTABLE POWER-DISTRIBUTION EQUIPMENT
25、 - UL 1640 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL SUPPLEMENT SA - FOLLOW-UP INSPECTION INSTRUCTIONS GENERAL SA1 Scope SA1 SA2 Glossary SA1 RESPONSIBILITY OF THE MANUFACTURER SA3 General SA2 RESPONSIBILITY OF THE FIELD REPRESENTATIV
26、E SA4 General SA3 SA5 General SA4 SA6 Enclosures SA5 SA6.1 Sheet metal thickness .SA5 SA6.2 Corrosion protection .SA5 SA6.3 Types SA6 SA6.4 Current-carrying parts (bus bars) SA6 SA6.5 Grounding SA6 SA7 Overcurrent Protection .SA7 SA8 Details .SA7 SA9 General SA8 SA10 Standard Listing Mark .SA9 SA11
27、Bus Bar Clamps SA9 SA12 Construction-Site Equipment .SA9 SA13 Open-Framed Cable-Splicing Blocks SA9 APPENDIX A Standards for ComponentsA1 NOVEMBER 14, 2016 PORTABLE POWER-DISTRIBUTION EQUIPMENT - UL 1640 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISS
28、ION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover portable power-distribution equipment rated 600 volts or less and 1600 amperes maximum. They are intended for either single- or multi-phase supply and are intended to distribute power in accordance with the National Electrical Code, NFPA
29、70 (NEC). 1.2 These requirements cover portable power-distribution equipment intended for use in the following locations: a) Carnivals, circuses, fairs, and similar locations in accordance with Article 525 of the NEC; b) Exhibition halls in accordance with Article 518 of the NEC; c) Motion picture a
30、nd television studios and similar locations in accordance with Article 530 of the NEC; d) Theaters, audience areas of motion-picture and television studios, and similar locations in accordance with Article 520 of the NEC; and e) Temporary installations at construction sites in accordance with Articl
31、e 590 of the NEC. 1.3 These requirements do not cover portable power-distribution equipment: a) Intended to be mounted above or adjacent to the lighting unit it supplies. These devices are covered by the Standard for Stage and Studio Luminaires and Connector Strips, UL 1573. b) Intended to be connec
32、ted to the load side of branch circuits, such as: 1) Relocatable power taps. These devices are covered by the Standard for Relocatable Power Taps, UL 1363; 2) Cord sets. These devices are covered by the Standard for Cord Sets and Power- Supply Cords, UL 817; 3) Convention-center Cord Sets. These dev
33、ices are covered by the Standard for Exhibition Display Units, Fabrication and Installation, UL 2305; and 4) Current taps. These devices are covered by the Standard for Current Taps and Adapters, UL 498A. NOVEMBER 14, 2016 PORTABLE POWER-DISTRIBUTION EQUIPMENT - UL 1640 7UL COPYRIGHTED MATERIAL NOT
34、AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2 Components 2.1 Except as indicated in 2.2, a component of a product covered by this standard shall comply with the requirements for that component. See Appendix A for a list of standards covering components used in the
35、products covered by this standard. 2.2 A component is not required to 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
36、component shall be used in accordance with its rating established for the intended conditions of use. 2.4 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatu
37、res 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 approximate information. 3.2 All applicable alternating-current electrical measurements a
38、re in root-mean-square (rms) units unless otherwise stated. 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. 5 Glossary 5.1 For the purposes of this st
39、andard the following denitions apply. 5.2 BUS BAR CLAMP (SISTER LUG) A connector that terminates a single conductor cable and that is secured to a bus bar with an integral set screw. May secure the conductor by soldering, integral pressure wire connector, or by crimping of the clamp body. 5.3 CABLE
40、CONNECTOR A portable receptacle that is intended to provide power, with means for attachment of exible cord or cable and not intended for permanent mounting. 5.4 CABLE-SPLICING BLOCK Power-distribution equipment intended to provide a termination for cable assemblies. Not provided with overcurrent pr
41、otection; only provide a means to extend runs of single- or multi-conductor cable. 5.5 COVER An unhinged, removable covering member that is a required part of the enclosure. NOVEMBER 14, 2016 PORTABLE POWER-DISTRIBUTION EQUIPMENT - UL 1640 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUC
42、TION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5.6 DAMP LOCATION Protected locations outdoors and interior locations subject to moderate degrees of moisture. This would also include areas near where articial rain is being produced, or when effect machines that utilize water vapor to generate fog or
43、 mist effects are being used. Damp Locations are not subject to direct water spray or rain. 5.7 DEAD-FRONT A panel that may or may not form a part of the enclosure and that may be used behind a door, which may have openings for the passage of cords, to cover wiring and uninsulated live parts. 5.8 DO
44、OR A hinged, sliding, or similarly attached covering member that is capable of being removed only by the use of a tool and that is a required part of the enclosure. 5.9 ENCLOSURE That part of power-distribution equipment that: a) Renders inaccessible all or any parts of the equipment that may otherw
45、ise present a risk of electric shock and/or b) Retards propagation of ame initiated by an electrical fault occurring within the equipment. 5.10 FORMED HINGE A strip of metal secured to or integral with the enclosure or trim and formed so that it will cooperate with a slot in a door to form a hinge.
46、5.11 INLET ASSEMBLY, INTERLOCKED An assembly of locking-type, single-pole pin-and-sleeve inlets. The assembly is interlocked as specied under 5.18. 5.12 INLET ASSEMBLY, SEQUENTIALLY INTERLOCKED An assembly of locking-type, single-pole pin-and-sleeve inlets. The assembly is sequentially interlocked a
47、s specied under 5.19. 5.13 INTERLOCKED INLET An inlet having a device, either mechanical or electrical, that is intended to reduce the risk of energizing the contacts before complete engagement with a plug, and that either is intended to reduce risk of the plug being withdrawn while its contacts are
48、 energized or de-energizes the line contacts before separation. 5.14 PIN-AND-SLEEVE DEVICE A plug or receptacle utilizing contacts which generally are cylindrical or circular in shape and telescoping and are shrouded by an extension of the enclosure of the mating devices. 5.15 PLUG (ATTACHMENT PLUG)
49、 A device intended to receive power when inserted in a receptacle or cable connector, which establishes connection between conductors of the attached exible cord or cable and the conductors connected to the receptacle or cable connector. 5.16 POWER INLET (INLET) A permanently mounted plug intended to receive power from a cable connector. 5.17 RECEPTACLE (OUTLET) A device that is intended to provide power to an inserted plug, and that is installed as a xed outlet on equipmen
