1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1640 Portable Power-Distribution EquipmentUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR
2、 FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Portable Power-Distribution Equipment, UL 1640 Third Edition, Dated October 25, 2012 Summary of Topics This new edition of UL 1640 includes a Clarication of Requirements for Environmental Ratings for Portable
3、 Power Distribution Equipment. The requirements are substantially in accordance with Proposal(s) on this subject dated June 10, 2011 and September 29, 2011. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, elec
4、tronic, 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 will UL be
5、 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 possibilit
6、y 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, liabil
7、ity, 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. The requirements in this Standard are now in effect, except for those paragraphs, sections, tabl
8、es, 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 requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREME
9、NTS notice. OCTOBER 25, 2012 UL 1640 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Future Effective Date Reference October 25, 2013 Paragraphs 5.6, 8.2, 9.2.3, 9.6.1, 9.6.2, 10.2, 11.5, 13.2.1, 13.2.2, 13.2.3, 24.1, 24.2, 24.3, 26.1, 30
10、.3, 33.1, 33.6, 33.7, 33.9, 33.10, SA6.2.1, and SA6.3.1, Tables 9.1, 9.4, 13.3, SA5.1, and SA8.1 OCTOBER 25, 2012 UL 1640 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 25, 2012 1 UL 1640 Standard for Portable Power-Distribution
11、Equipment The rst edition was titled Portable Power Distribution Units. First Edition October, 1995 Second Edition July, 2000 Third Edition October 25, 2012 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 Proposa
12、l 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 rights regarding those Stan
13、dards shall remain the sole and exclusive property of UL. COPYRIGHT 2012 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 25, 2012 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 7 3 Units of Measurement .8 4 Undated References 8 5 Glossary .8 PART 1 ALL EQUIPMENT CONSTRUCTION 6 General .10 7 Current-Carrying Parts 10 7.1 Gener
15、al 10 7.2 Bus bars .10 7.3 Support and securement of live parts 15 7.4 Internal wiring .16 8 Electrical Insulation Material .19 9 Enclosure .22 9.1 General 22 9.2 Specic enclosures 22 9.3 Cast metal 22 9.4 Sheet metal 23 9.5 Doors and covers .26 9.6 Inlet and receptacle covers .31 9.7 Polymeric .32
16、9.8 Enclosure of switches, circuit breakers, or fuses 33 9.9 Accessibility of live parts .33 10 Enclosure Performance 37 11 Corrosion Protection 38 12 Grounding and Bonding .40 12.1 General .40 12.2 Output receptacle grounding .42 13 Input Connections 42 13.1 General .42 13.2 Cord-connected equipmen
17、t 43 13.3 Multi-conductor inlet input .45 13.4 Single-conductor inlets and plugs 45 13.5 Interlocked inlet assemblies .46 13.6 Sequentially-interlocked inlet assemblies 46 13.7 Bus bars 46 14 Output Connections .46 14.1 General .46 14.2 Receptacles .47 15 Overcurrent Protection 47 15.1 General .47 1
18、5.2 Circuit breakers 47 15.3 Fuses .49 OCTOBER 25, 2012 PORTABLE POWER-DISTRIBUTION EQUIPMENT - UL 1640 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 15.4 Fuseholders .49 16 Spacings 49 17 Switches .54 18 Transformers .54 PERFORMANCE 19 G
19、eneral 55 20 Temperature Test .56 21 Clamped-Joint Temperature Test .58 22 Dielectric Voltage-Withstand Test .59 22.1 General .59 22.2 Clamped insulating joint .59 22.3 Insulating barriers 60 23 Strain-Relief Test .60 24 Resistance to Rain Test .60 25 Icing Test 63 26 Gasket Tests .63 27 Spring-Clos
20、ing Cycling Test 64 28 Metallic Coating Thickness Test 64 RATINGS 29 Details .65 MARKINGS 30 General 66 31 Public Access 67 32 Conductors in Parallel .67 33 Enclosure Type .67 34 Neutral Connection .68 35 Qualied Personnel .68 36 Receptacle Ratings .69 37 Multi-Pole Receptacle Conguration .69 38 Sin
21、gle-Pole Inlets or Output Receptacles 69 39 Supply Cord Without Attachment Plug .70 40 Switches or Circuit Breakers .70 PART 2 BUS BAR CLAMPS CONSTRUCTION 41 General 70 PERFORMANCE 42 General 71 MARKINGS 43 Details .72 OCTOBER 25, 2012 PORTABLE POWER-DISTRIBUTION EQUIPMENT - UL 1640 4UL COPYRIGHTED
22、MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PART 3 CABLE-SPLICING BLOCKS CONSTRUCTION 44 General 72 PERFORMANCE 45 General 74 46 Temperature Test .74 47 Loose Connection Test 74 48 Drop Test 74 49 Pullout Test 74 50 Crushing Test 75 51 Insulation Resis
23、tance and Dielectric Voltage-Withstand Test .75 52 Impact Test 75 RATINGS 53 Details .75 MARKINGS 54 Details .75 PART 4 CONSTRUCTION-SITE EQUIPMENT FOR TEMPORARY INSTALLATIONS IN ACCORDANCE WITH ARTICLE 590 OF THE NEC CONSTRUCTION 55 General 76 56 Mounting Legs .76 57 Ground-Fault Protection for Per
24、sonnel .76 58 Receptacles 77 59 Supply Connection 77 60 Overcurrent Protection 77 61 Enclosures .78 62 Spacings 78 PERFORMANCE 63 General 79 64 Loading Tests 79 65 Resistance to Rain Test .79 66 Door Endurance Test .79 MARKINGS 67 Details .79 OCTOBER 25, 2012 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 REPRESENTATIVE S
26、A4 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 Bus
27、 Bar Clamps SA9 SA12 Construction-Site Equipment .SA9 SA13 Open-Framed Cable-Splicing Blocks SA9 APPENDIX A Standards for ComponentsA1 OCTOBER 25, 2012 PORTABLE POWER-DISTRIBUTION EQUIPMENT - UL 1640 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION
28、FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover portable power-distribution equipment intended to distribute power in accordance with the National Electrical Code, NFPA 70 (NEC). 1.2 These requirements cover portable power-distribution equipment intended for use in the following locations:
29、 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 and television studios and similar locations in accordance with Article 530 of the NEC; d) Theaters, audience areas of mot
30、ion-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 Article 590 of the NEC. 1.3 These requirements do not cover portable power-distribution equipment intended to be mounted above
31、or adjacent to the lighting unit it supplies. 1.4 These requirements cover power-distribution equipment rated 600 volts or less and 1600 amperes maximum. They may be intended for either single- or multi-phase supply. 2 Components 2.1 Except as indicated in 2.2, a component of a product covered by th
32、is standard shall comply with the requirements for that component. See Appendix A for a list of standards covering components used in the 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
33、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 component shall be used in accordance with its rating established for the intended conditions of use. 2.4 Specic components are incomplete in construction feature
34、s or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only under those specic conditions. OCTOBER 25, 2012 PORTABLE POWER-DISTRIBUTION EQUIPMENT - UL 1640 7UL COPYR
35、IGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 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 mea
36、surements are 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
37、 of this standard 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.
38、 5.3 CABLE 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 ove
39、rcurrent protection; 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. 5.6 DAMP LOCATION Protected locations outdoors and interior locations subject to moderate degrees of moisture. This
40、 would also include areas near where articial rain is being produced, or when effect machines that utilize water vapor to generate fog or mist effects are being used. Damp Locations are not subject to direct water spray or rain. 5.6 effective October 25, 2013 5.7 DEAD-FRONT A panel that may or may n
41、ot 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 DOOR 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
42、 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 otherwise present a risk of electric shock and/or b) Retards propagation of ame initiated by an electrical fault occurring within the equi
43、pment. 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. OCTOBER 25, 2012 PORTABLE POWER-DISTRIBUTION EQUIPMENT - UL 1640 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR
44、 DISTRIBUTION WITHOUT PERMISSION FROM UL 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. T
45、he assembly is sequentially interlocked as 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 pl
46、ug being withdrawn while its contacts are 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 ma
47、ting devices. 5.15 PLUG (ATTACHMENT PLUG) 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 (INL
48、ET) 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 equipment. 5.18 RECEPTACLE ASSEMBLY, INTERLOCKED An assembly consisting of a number of lo
49、cking- type, single-pole pin-and-sleeve-type receptacles. Supply receptacles are interlocked to the source so it is not possible to connect or disconnect the plugs when the source of supply is energized. 5.19 RECEPTACLE ASSEMBLY, SEQUENTIALLY INTERLOCKED An assembly consisting of a number of locking-type, single-pole receptacles that are electrically or mechanically interlocked in such a manner that plugs must be connected in the following sequence and disconnected in th
