1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAPRIL 2, 20131UL 2695OUTLINE OF INVESTIGATIONFORDC RATED ATTACHMENT PLUGS AND OUTLET DEVICES INTENDED FORUSE WITH INFORMATION TECHNOLOGY AND TELECOMMUNICATIONEQUIPMENT INSTALLED IN RESTRICTED ACC
2、ESS LOCATIONSIssue No. 2April 2, 2013Summary of TopicsThis is the second issue of the Outline of Investigation for DC RatedAttachment Plugs and Outlet Devices Intended for Use with InformationTechnology and Telecommunication Equipment Installed in RestrictedAccess Locations which includes revisions
3、to the Printed Wiring Board(PWB) Ground Path Test and deletion of the Printed Circuit Board (PWB)Conductor Overcurrent Test.COPYRIGHT 2013 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAPRIL 2, 2013UL 26952No Te
4、xt on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .52 Components 63 Units of Measurement .64 Undated References 65 Glossary .6CONSTRUCTION6 General 87 Insulating Materials 87.1 General .87.2 Flammabilit
5、y .87.3 Electrical properties .97.4 Thermal properties 108 Current Carrying Parts 109 Grounding and Dead-Metal Parts 1110 Terminals 1110.1 General .1110.2 Wire-binding screw terminals 1110.3 Conductor leads .1211 Flexible Cord .1212 Spacings 1313 Protection from Electric Shock and Energy Hazards 131
6、4 Mating and Intermateability 1615 Interlock .1616 Devices Intended to Accommodate a Fuse 1617 Printed Wiring Board 1718 Resistance to Corrosion .17PERFORMANCE19 Representative Devices .1720 Comparative Tracking Index Test .1921 Glow Wire Test .1922 Dielectric Voltage-Withstand Test .1923 Mold Stres
7、s Relief Test 2024 Dielectric Voltage-Withstand Test (Repeated) 2125 Moisture Absorption Resistance Test 2126 Security of Blades Test 2127 Insulation Resistance Test .2228 Conductor Secureness Test 2329 Crush Test .2330 Short-Time Current Test .2331 Printed Wiring Board (PWB) Ground Path Test .2432
8、Overload Test 2433 Temperature Test .2534 Dielectric Voltage-Withstand Test .2635 Resistance to Arcing Test 26APRIL 2, 2013 UL 2695 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL36 Fuseholder Temperature Test 2636.1 General .2636.2 Attachme
9、nt plugs .2736.3 Outlet devices .2736.4 Procedure .2737 Resistance to Corrosion Test .28RATINGS38 General 28MARKINGS39 General 2940 Disconnecting Under Load .29APRIL 2, 2013UL 26954UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1
10、Scope1.1 This Outline covers attachment plugs and outlet devices rated up to 20 amperes and up to 600 voltsdc only, intended exclusively for use with information technology and telecommunication equipmentinstalled indoors, in restricted access locations.1.2 Attachment plugs and outlet devices covere
11、d by this Outline are intended to be interconnected byservice personnel only.1.3 Attachment plugs and outlet devices covered in this Outline are intended for assembly to copper orcopper alloy conductors.1.4 This Outline also covers attachment plugs molded on to flexible cord. In addition to the requ
12、irementscontained in this Outline, an attachment plug molded on to flexible cord shall also comply with theapplicable requirements contained in the Standard for Cord Sets and Power Supply Cords, UL 817.1.5 This Outline does not cover:a) Plugs, receptacles, and cable connectors, of the pin and sleeve
13、 type covered by theStandard for Plugs, Receptacles, and Cable Connectors, of the Pin and Sleeve Type, UL 1682;b) Attachment plugs, cord connectors, and receptacles covered by the Standard for AttachmentPlugs and Receptacles, UL 498;c) Single and multi-pole connectors, which may include 3 or more pi
14、lot contacts, intended forconnection to copper conductors, for use in data, signal, control and power applications withinand between electrical equipment, where exposed, that are covered by the Standard forComponent Connectors for Use in Data, Signal, Control and Power Applications, UL 1977;d) Devic
15、es consisting of wiring terminals and supporting blocks intended for the connection ofwiring that are covered by the Standard for Terminal Blocks, UL 1059;e) Devices such as modular jacks and plugs that are intended for use with telecommunicationsnetworks that are covered by the Standard for Informa
16、tion Technology Equipment Safety Part1: General Requirements, UL 60950-1, and the Standard for Communications-CircuitAccessories, UL 1863;f) Devices such as wire connectors and soldering lugs covered by the Standard for WireConnectors, UL 486A-486B; the Standard for Splicing Wire Connectors, UL 486C
17、; or theStandard for Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors, UL486E; org) Devices such as quick-connect terminals covered by the Standard for Electrical Quick-Connect Terminals, UL 310.APRIL 2, 2013 UL 2695 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPROD
18、UCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL2 Components2.1 Except as indicated in 2.2, a component of a product covered by this Outline shall comply with therequirements for that component.2.2 A component is not required to comply with a specific requirement that:a) Involves a feature or charac
19、teristic not required in the application of the component in theproduct covered by this Outline; orb) Is superseded by a requirement in this Outline.2.3 A component shall be used in accordance with its rating established for the intended conditions ofuse.2.4 Specific components are incomplete in con
20、struction features or restricted in performance capabilities.Such components are intended for use only under limited conditions, such as certain temperatures notexceeding specified limits, and shall be used only under those specific conditions.3 Units of Measurement3.1 In addition to being stated in
21、 the inch/pound units that are customary in the USA, each of therequirements in this Outline is also stated in units that make the requirement conveniently usable incountries employing the metric system (practical SI). Equivalent - although not necessarily exactlyidentical - results are to be expect
22、ed from applying a requirement in USA or metric terms. Equipmentcalibrated in metric units is to be used when a requirement is applied in metric terms.4 Undated References4.1 Any undated reference to a code or standard appearing in the requirements of this outline shall beinterpreted as referring to
23、 the latest edition of that code or standard5 Glossary5.1 For the purposes of this Outline, the following definitions apply.5.2 ATTACHMENT PLUG A male contact device for the temporary connection of a flexible cord orcable to a panel outlet device.5.3 BLADE The part of an attachment plug intended to
24、be inserted into the contacts of an outletdevice (panel outlet) of matching configuration and the integral extension of this part, located within theattachment plug, to which the conductor of a flexible cord is connected.5.4 ELECTRICAL (FUNCTIONAL) INSULATION The insulation necessary for the proper
25、functioningof the product and for basic protection against electrical shock. This includes all parts relied upon tosupport live parts in place, all internal barriers necessary to maintain spacings, and the outlet faceportion of a panel outlet device.5.5 ENCLOSURE That part of the device that renders
26、 inaccessible all or any parts of the device thatmay otherwise present a risk of electric shock, retards propagation of flame initiated by electricaldisturbances occurring within, or both.APRIL 2, 2013UL 26956UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERM
27、ISSION FROM UL5.6 INTERLOCKED OUTLET An outlet having a device, either electrical or mechanical, that isintended to reduce the likelihood of energizing the contacts before proper engagement with the plug,and that either is intended to reduce the likelihood of the plug being withdrawn while its conta
28、cts areenergized or de-energizes the line contacts before separation.5.7 OUTLET DEVICE A female contact device to be mounted on utilization equipment.5.8 POLARIZED DEVICE A device constructed for connection to a mating device only in the positionthat connects related poles of an electrical circuit.5
29、.9 RESTRICTED ACCESS LOCATION Location for equipment where both of the following applies:a) Access can only be gained by service personnel who have been instructed about thereasons for the restrictions applied to the location and about any precautions that shall betaken; andb) Access is through the
30、use of a lock and key, or other means of security, and is controlled bythe authority responsible for the location.5.10 SERVICE PERSONNEL Persons having technical training and experience required to be awareof the risks encountered when performing a task and the measures to be taken to minimize the r
31、isks tothem and other persons.5.11 TERMINAL, CRIMPED CONNECTION An electro-mechanical connection made between ablade and a conductor by compressing the portion of the blade termed the integral extension in 5.3,against the conductor.5.12 TERMINAL, PRESSURE-WIRE A terminal which establishes a connecti
32、on between a conductorand a terminal plate by means of mechanical pressure without the use of solder. A pressure-wireterminal may be either of the following types:a) Clamp-Type A pressure-wire terminal in which the conductor is held under a pressureplate or saddle clamp by one or more screws. This t
33、ype of terminal may be provided incombination with a wire-binding screw terminal.b) Setscrew-Type A pressure-wire terminal in which the pressure is applied by the end of thescrew bearing on the conductor, either directly or through a wire-protecting pad.5.13 TERMINAL, WIRE-BINDING SCREW A terminal i
34、n which the conductor is bent around thescrew and is clamped directly under the head of the screw when it is tightened.APRIL 2, 2013 UL 2695 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONSTRUCTION6 General6.1 An attachment plug or an out
35、let device complying with these requirements is acceptable for use ascomponents in an end product where the acceptability of the combination is to be determined.6.2 The acceptability of an attachment plug or an outlet device in any particular application depends onits ability to be used under the co
36、nditions that prevail in actual service. For a particular application, anattachment plug or an outlet device may be affected by the requirements for the equipment in which it isused, and it may be necessary to additionally evaluate features or performance characteristics that arenot specified in thi
37、s Outline.7 Insulating Materials7.1 General7.1.1 All parts that act as the electrical insulation or enclosure of an attachment plug or an outlet deviceshall be made of an insulating material intended for the particular application and shall comply with therequirements in 7.2.1 7.4.1. Hard rubber sha
38、ll not be employed.7.1.2 A polymeric material used for electrical insulation or enclosure of live parts shall be fabricated inaccordance with the Standard for Polymeric Materials Fabricated Parts, UL 746D.Exception: A polymeric material that is fabricated in the same location where final assembly ta
39、kes placeand where no blending or compounding operations are involved is not required to comply with thisrequirement.7.2 Flammability7.2.1 A polymeric material used for electrical insulation or enclosure of live parts shall have a flame classrating of V-2, V-1, V-0, VTM-2, VTM-1, or VTM-0 in accorda
40、nce with the requirements of the Standard forTests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL 94. The flame classrating of the material shall be judged at the minimum thickness employed at the walls and barriers in thedevice which are critical to the functioning of
41、 the insulation or enclosure of the device.Exception: A polymeric material that complies with either the 12 mm or 20 mm (3/4-inch) flameflammability test described in the Standard for Polymeric Materials - Use in Electrical EquipmentEvaluations, UL 746C, need not have a flammability class rating.7.2
42、.2 A polymeric material used as the enclosure of a fuse shall have a flame class rating of V-0, V-1,V-2, 5VA, or 5VB in accordance with the requirements of UL 94.APRIL 2, 2013UL 26958UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL7.3 Electric
43、al properties7.3.1 A polymeric material used for electrical insulation or enclosure of live parts shall have aComparative Tracking Index (CTI) rating of 175 V or greater or a performance level class of at least 3.Exception No. 1: A polymeric material used for electrical insulation or enclosure of li
44、ve parts is not requiredto comply with this requirement if it complies with the Comparative Tracking Index Test, Section 20.Exception No. 2: A polymeric material used in an enclosure that is separated through air by more than1/32 inches (0.8 mm) from uninsulated live parts and more than 1/2 inch (12
45、.7 mm) from arcing parts isnot required to comply with this requirement.7.3.2 A polymeric material used for electrical insulation or enclosure of live parts shall have Hot WireIgnition (HWI) and High-Current Arc Resistance to Ignition (HAI) ratings or performance level classes ofat least those shown
46、 in Table 7.2.1 for the flame class rating determined in accordance with 7.2.1. Formaterials with other than VTM flammability classifications, the HWI and HAI ratings of the material shallbe evaluated using the specimen thickness employed in the end product or nominal 1/8 inch (3.2 mm)thickness, whi
47、chever is greater.Exception: A polymeric material used for electrical insulation or enclosure of live parts is not required tocomply with the HWI requirements if it complies with the Glow Wire Test, Section 21.Table 7.1Hot wire ignition (HWI) and high-current arc resistance to ignition (HAI) ratings
48、 of insulatingmaterialsFlammabilityclassificationaHWIb,dHAIc,dMean ignition time(sec)PLC Mean no. of arcs PLCV-0, VTM-0 7 and up to 15 4 15 and up to 30 3V-1, VTM-1e15 and up to 30 3 15 and up to 30 3V-2, VTM-2 15 and up to 30 3 15 and up to 30 3aFlammability classification Described in the Standard
49、 for Tests for Flammability of Plastic Materials for Parts in Devices andAppliances, UL 94.bHot Wire Resistance to Ignition Described in the Standard for Polymeric Materials Short Term Property Evaluations, UL746A.cHigh-Current Arc Resistance to Ignition Described in UL 746A.dMean ignition time and mean no. of arcs to be used to evaluate Filament Wound Tubing, Industrial Laminates, VulcanizedFiber, and similar polymeric materials only. All other materials are to be judged using the performance level class values.eA polymeric material subje
