1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 623681Audio/video, information and communication technology equipment - Part 1: SafetyrequirementsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDIST
2、RIBUTION WITHOUT PERMISSION FROM ULNational Differences ForUL 623681Audio/video, information and communication technology equipment - Part 1: Safety requirementsEdition: 2Edition Date: December 1, 2014This new edition of ANSI/UL 62368-1 is being issued to update requirements to those publishedin IEC
3、 62368-1, second edition. Technical changes to the IEC Standard have been incorporatedinto the new edition of the UL Standard. National Differences from the First Edition of UL62368-1 were reviewed and updated in the new edition.UL 62368-1 is an adoption of IEC 62368-1, Audio/video, information and
4、communicationtechnology equipment Part 1: Safety requirements (Second Edition, issued February 2014). ).Please note that the national difference document incorporates all of the U.S. nationaldifferences for UL 62368-1.This document provides a single listing of the National Differences included in th
5、e UL adoption ofthe corresponding IEC standard.All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, ortransmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwisewithout prior permission of UL.UL provides this standar
6、ds document as is without warranty of any kind, either expressed or implied,including but not limited to, the implied warranties of merchantability or fitness for any purpose.In no event will UL be liable for any special, incidental, consequential, indirect or similar damages,including loss of profi
7、ts, lost savings, loss of data, or any other damages arising out of the use of or theinability to use this standards document, even if UL or an authorized UL representative has been advisedof the possibility of such damage. In no event shall ULs liability for any damage ever exceed the pricepaid for
8、 this standards document, regardless of the form of the claim.Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold ULharmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonableattorneys fees) resulting from any
9、 error or deviation introduced while purchaser is storing an electronicStandard on the purchasers computer system.Copyright 2014 Underwriters Laboratories Inc.DECEMBER 1, 2014NATIONAL DIFFERENCES FOR UL UL 62368-12UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT
10、 PERMISSION FROM ULPrefaceThis document provides a single listing of the technical National Differences included in the UL adoptionof the corresponding IEC standard.In its IEC-based standards, UL uses the notations indicated below to identify national difference type, andthese types are additionally
11、 noted in this document. The standard may not use all types of thesedeviations.D1 - These are deviations which are based on basic safety principles and requirements, elimination ofwhich would compromise safety for U.S. consumers and users of products.D2 - These are deviations based on safety practic
12、es. These are deviations for IEC requirements that maybe acceptable, but adopting the IEC requirements would require considerable retesting or redesign on themanufacturers part.DC - These are deviations based on the component standards and will not be deleted until a particularcomponent standard is
13、harmonized with the IEC component standard.DE - These are deviations based on editorial comments or corrections.DR - These are deviations based on the national regulatory requirements.Each national difference contains a description of what the national difference entails. Typically one of thefollowi
14、ng words is used to explain how the text of the national difference is to be applied to the base IECtext:Addition / Add - An addition entails adding a complete new numbered clause, subclause, table,figure, or annex. Addition is not meant to include adding select words to the base IEC text.Deletion /
15、 Delete - A deletion entails complete deletion of an entire numbered clause, subclause,table, figure, or annex without any replacement text.Modification / Modify - A modification is an altering of the existing base IEC text such as theaddition, replacement or deletion of certain words or the replace
16、ment of an entire clause,subclause, table, figure, or annex of the base IEC text.DECEMBER 1, 2014 NATIONAL DIFFERENCES FOR UL UL 62368-1 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNational Differences1DV.1 DC Modify Clause 1 by adding th
17、e following text after the third paragraph:Battery backup systems that are not an integral part of stationary equipment, such asprovided in separate cabinets, are subject to the appropriate standard for battery backupsystems, such as UL 1973, Batteries for Use in Light Electric Rail (LER) Applicatio
18、ns andStationary Applications.NOTE See Figures 1.1 and 1.2 of UL 1973 for more information on independent electric energy storage systems(EESS) covered by UL 1973, which can consist of both low voltage (class ES or ES2) and high voltage (class ES3)subsystems, battery management, thermal management,
19、and related features and safeguards. Wheninterconnected with AV, IT, and CT Equipment, and typically used in conjunction with an uninterruptible powersupply (UPS), such EESS typically serve as a short-term substitution of the mains supply during power outagesand similar disturbances.1DV.2 DE Modify
20、Clause 1 by replacing the seventh paragraph with the following:Additional requirements for information and communication technology equipmentintended for outdoor installation are given in CSA/UL 60950-22. Additional requirementsfor audio/video equipment intended for outdoor installation are given in
21、 the relevantrequirements in CAN/CSA C22.2 No. 60065 or UL 60065.1DV.3 DR Modify Clause 1 by adding the following text:1DV.3.1 This standard also is applicable to equipment designed to be installed inaccordance with the Canadian Electrical Code, Part I, CSA C22.1-12; Canadian ElectricalCode, (CEC) P
22、art II, General Requirements, CAN/CSA C22.2 No. 0-10; the NationalElectrical Code, NFPA 70-2014; and the National Electrical Safety Code, IEEE C2-2012.1DV.3.2 The standard is also applicable to equipment, when identified by a marking orinstruction see Annex DVK (Annex DVA, Clause 1 entry), designed
23、to be installed inaccordance with Article 645 of the National Electrical Code, NFPA 70-2014 and theStandard for the Protection of Information Technology Equipment, NFPA 75-2013.1DV.3.3 See Annex DVA for requirements and references to regulatory requirements thatapply to this equipment, as applicable
24、1DV.4 D2 Modify Clause 1 by adding the following text:1DV.4.1 This standard includes additional requirements for equipment used forentertainment purposes intended for installation in general patient care areas of healthcare facilities. See Annex DVB.DECEMBER 1, 2014NATIONAL DIFFERENCES FOR UL UL 62
25、368-14UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL1DV.4.2 This standard includes additional requirements for equipment intended formounting under kitchen cabinets. See Annex DVC.1DV.4.3 This standard does not apply to equipment having Remo
26、te FeedingTelecommunication (RFT) circuits. Equipment having RFT circuits is covered by CSA/UL60950-21.1DV.4.4 Additional requirements may apply to large data storage equipment. Refer toCSA/UL 60950-23.1DV.4.5 This standard does not cover Modular Data Centers (MDCs), only the informationand communic
27、ation technology equipment contained within.NOTE: In the U.S., Modular Data Centers are covered by UL 2755, Modular Data Centers.1DV.5 DC Modify Clause 1 by adding the following text:1DV.5.1 Power Distribution Equipment and Sub-Assemblies1DV.5.1.1 This standard also is applicable to power distributi
28、on subassemblies connectedto a mains used to distribute power entirely within a system of equipment also covered bythis standard, such as power distribution units (PDUs) in the form of cord-connectedpower strips and shelves with multiple power outlets (receptacles) and intended to beinstalled in sys
29、tem racks, cabinets, home entertainment centers, etc.1DV.5.1.2 For equipment covered by this standard that incorporates components andsub-assemblies that perform a power distribution and control function covered by otherstandards, such as panelboards, load transfer equipment, or uninterruptible powe
30、rsystems utilized in power conditioners and computer power centers, this standard onlymay be used for investigation of safety for those aspects not covered by the otherstandards.1DV.5.1.3 This standard also does not apply to stand-alone equipment used fordistribution of mains power that is covered b
31、y individual power distribution equipmentstandards.1DV.5.1.4 Based on the specific function, the following requirements are applicable to thestand-alone distribution equipment, or apply additionally to power distributionsub-assemblies and components of equipment covered by this standard, as describe
32、d in1DV.5.1.2 and 1DV.5.1.3: For Industrial Control Equipment, see CSA C22.2 No. 14 and UL 508. For Panelboards, see CSA C22.2 No. 29 and UL 67. For Switchboards, see CSA C22.2 No 244 and UL 891. For Transfer Switch Equipment, see CSA C22.2 No 178.1 and UL 1008. For Uninterruptible Power Systems, se
33、e CSA C22.2 No. 107.3 and UL 1778. For Power Distribution Centers for Communications Equipment, see UL 1801.DECEMBER 1, 2014 NATIONAL DIFFERENCES FOR UL UL 62368-1 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL For other forms of power dist
34、ribution units for general applications, such as, Relocatable Power Taps, see CSA C22.2 No. 21, Cord Sets and PowerSupply Cords, and UL 1363, Relocatable Power Taps. Cord connected Surge Protective Devices, see CSA TechnicalInformation Letter No. A-24, Interim Certification Requirements for AC LineC
35、onnected Wiring Devices with Varistors, and UL 1449, Surge ProtectiveDevices. Furniture Power Distribution Units, see CSA C22.2 No. 21, Cord Setsand Power Supply Cords, and UL 962A, Furniture Power DistributionUnits.NOTE 1 It is assumed that power distribution equipment covered by the scope of this
36、Standard isinterconnected to the Outlet of a Branch Circuit as defined in Section 0 of the CEC, Part I, and Article 100 ofthe NEC. In the case of cord-connected equipment, the Outlet is the Receptacle associated with the buildingwiring. In the case of permanently connected equipment, the Outlet is t
37、he interface between the Branch Circuitconductors associated with the building wiring and the input terminals, pressure connectors, or leads associatedwith the power distribution equipment covered in whole or part by this standard.NOTE 2 The following are common definitions of the hardware with rela
38、ted functions that require additionalinvestigation to the appropriate Canadian and U.S. standards.Industrial Control Panel An assembly of two or more components consisting of one of the following:(1) Power circuit components only, such as motor controllers, overload relays, fused disconnectswitches,
39、 and circuit breakers;(2) Control circuit components only, such as pushbuttons, pilot lights, selector switches, timers,switches, control relays; or(3) A combination of power and control circuit components.These components, with associated wiring and terminals, are mounted on or contained within an
40、enclosure ormounted on a subpanel. The industrial control panel does not include the controlled equipment.Panelboard A single panel or group of panel units designed for assembly in the form of a single panel, includingbuses and automatic overcurrent devices, and equipped with or without switches for
41、 the control of light, heat, orpower circuits; designed to be placed in a cabinet or cutout box placed in or against a wall, partition, or othersupport; and accessible only from the front.Switchboard A large single panel, frame, or assembly of panels on which are mounted, on the face, back, orboth,
42、switches, overcurrent and other protective devices, buses, and usually instruments. Switchboards aregenerally accessible from the rear as well as from the front and are not intended to be installed in cabinets.Transfer Switch An automatic or nonautomatic device for transferring one or more load cond
43、uctor connectionsfrom one power source to another.Uninterruptible Power Supply A power supply used to provide alternating current power to a load for someperiod of time in the event of a power failure.DECEMBER 1, 2014NATIONAL DIFFERENCES FOR UL UL 62368-16UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F
44、URTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL2DV.1 DE Modify Clause 2 by adding the following NOTE:NOTE See also 4.1.1DV.1.2DV.2 DE Modify Clause 2 by adding the following references:ANSI/ASA S3.25-1989, American National Standard for Occluded Ear SimulatorASTM E84, Standard Test Met
45、hod for Surface Burning Characteristics of Building MaterialsASTM E162, Standard Test Method for Surface Flammability of Materials Using a RadiantHeat Energy SourceASTM F2951, Consumer Safety Specification for Baby MonitorsCSA C22.1, Canadian Electrical Code, Part ICAN/CSA C22.2 No. 0, Canadian Elec
46、trical Code, Part II, General RequirementsCSA C22.2 No. 0.12, Wiring Space and Wire Bending Space in Enclosures for EquipmentRated 750 V or LessCSA C22.2 No. 14, Industrial Control EquipmentCSA C22.2 No. 21, Cord Sets and Power Supply CordsCSA C22.2 No. 29, Panelboards and enclosed panelboardsCSA C2
47、2.2 No. 31, Switchgear AssembliesCSA C22.2 No. 42, General use receptacles, attachment plugs, and similar wiring devicesCAN/CSA C22.2 No. 94, Special Purpose EnclosuresCAN/CSA C22.2 No. 94.2, Enclosures for Electrical Equipment, EnvironmentalConsiderationsCSA C22.2 No. 107.3, Uninterruptible Power S
48、ystemsCSA C22.2 No. 178.1, Requirements for Transfer SwitchesCSA C22.2 No. 205, Signal EquipmentCAN/CSA C22.2 No. 226, Protectors in Telecommunication NetworksCSA C22.2 No. 233, Cords and cord sets for communication systemsCSA C22.2 No. 244, SwitchboardsCAN/CSA C22.2 No. 60065, Audio, Video and Simi
49、lar Electronic Apparatus SafetyRequirementsDECEMBER 1, 2014 NATIONAL DIFFERENCES FOR UL UL 62368-1 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCAN/CSA C22.2 No. 60601-1, Medical Electrical Equipment Part 1-1: GeneralRequirements for SafetyCAN/CSA C22.2 No. 60950-1, Information Technology Equipment Safety Part 1: GeneralRequirementsCAN/CSA C22.2 No. 60950-21, Information Technology Equipment Safety Part 21:Remote Power FeedingCAN/CSA C22.2 No. 60950-22, Information Technology E
