1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULOctober 7, 20101SUBJECT 6703AOUTLINE OF INVESTIGATIONFORMULTI-POLE CONNECTORS FOR USE IN PHOTOVOLTAIC SYSTEMSIssue Number: 1OCTOBER 7, 2010Summary of TopicsThis is the first issue of the Outline
2、of Investigation for Multi-PoleConnectors for Use in Photovoltaic Systems, Subject 6703A.The UL Foreword is no longer located within the UL Outline of Investigation. Forinformation concerning the use and application of the requirements contained inthis Outline of Investigation, the current version o
3、f the UL Foreword is located onULStandardsInfoNet at: http:/ 2010 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULOCTOBER 7, 2010SUBJECT 6703A2No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER
4、 REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSINTRODUCTION1 Scope .42 General 42.1 Units of measurement .42.2 References 52.3 Glossary 53 Components 5CONSTRUCTION4 General 6PERFORMANCE5 General 6MARKINGS6 General 8APPENDIX AStandards for ComponentsA1OCTOBER 7, 2010 SUBJECT 6703A 3UL
5、 COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULINTRODUCTION1 Scope1.1 This Outline covers latching or locking type multi-pole PV connectors rated 1000 Vac or dc or less.These connectors are intended for use in wiring methods detailed in Part IV
6、 of Article 690 - SolarPhotovoltaic Systems of the National Electrical Code, NFPA 70.1.2 Multi-pole PV connectors may consist of connectors, panel mounted connectors, distribution blocksand splitter connectors for the purpose of facilitating connections to and from inverters and like devices ina PV
7、system.1.3 Multi-pole PV connectors are suitable for the termination of insulated, stranded copper type TC-ER,USE-2 or Photovoltaic Wire (PV Wire) rated 90C, 105C, 125C, or 150C dry; 90C wet; 600, 1000, or2000 V.1.4 This standard does not apply to:a) Single polarity dc connectors covered by the Outl
8、ine in Investigation for Connectors for Usein Photovoltaic Systems, Subject 6703, andb) PV wiring harnesses or cable assemblies consisting of connectors (single or multi-pole)assembled onto cables.2 General2.1 Units of measurement2.1.1 The requirements in this outline are stated in metric units that
9、 make the requirement convenientlyuseable in countries employing the various metric systems (practical SI and customary). In addition tobeing stated in metric units, the inch/pound units, that are customary in the USA, are also provided. Thevalues given in SI (metric) units shall be normative, excep
10、t for AWG conductor sizes. Any other valuesgiven are for information purposes only.2.1.2 Equivalent - although, not necessarily exactly identical - results are to be expected from applying arequirement in USA or metric terms. Equipment calibrated in metric units is to be used when arequirement is ap
11、plied in metric terms.OCTOBER 7, 2010SUBJECT 6703A4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL2.2 References2.2.1 Any undated reference to a code or standard appearing in the requirements of this Outline ofInvestigation shall be interpret
12、ed as referring to the latest edition of that code or standard.2.3 Glossary2.3.1 See the Glossary Section of the Standard for Cable Assemblies and Fittings for Industrial Controland Signal Distribution, UL 2238, and the following.2.3.2 DISTRIBUTION BLOCK An insulated fitting with or without mounting
13、 options that terminates intwo or more outlets or that terminates in two or more female cable fittings for the purpose of distributingpower to additional outlets/inlets.3 Components3.1 Except as indicated in 3.2, a component of a product covered by this Outline of Investigation shallcomply with the
14、requirements for that component. See Appendix A for a list of standards coveringcomponents generally used in the products covered by this Outline of Investigation.3.2 A component need not comply with a specific requirement that:a) Involves a feature or characteristic not needed in the application of
15、 the component in theproduct covered by this Outline of Investigation, orb) Is superseded by a requirement in this Outline of Investigation.3.3 A component shall be used in accordance with its recognized rating established for the intendedconditions of use.3.4 Specific components are recognized as b
16、eing incomplete in construction features or restricted inperformance capabilities. Such components are intended for use only under limited conditions, such ascertain temperatures not exceeding specified limits, and shall be used only under those specific conditionsfor which they have been recognized
17、.OCTOBER 7, 2010 SUBJECT 6703A 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONSTRUCTION4 General4.1 Multi-pole PV connectors shall comply with the construction requirements in the Outline ofInvestigation for Connectors for Use in Photovol
18、taic Systems, Subject 6703, as appropriate, and with thisOutline of Investigation.4.2 Multi-pole PV connectors shall additionally comply with the following construction requirements, asappropriate, in the Standard for Cable Assemblies and Fittings for Industrial Control and SignalDistribution, UL 22
19、38:a) Grounding and Dead-Metal Parts (Section 9),b) Terminals (Section 10),c) Strain Relief and Cord Entries (Section 11), andd) Assembly (Section 13).PERFORMANCE5 General5.1 A multi-pole PV connector or device shall comply with the test requirements in Table 5.1. Testsequences are performed using t
20、he same assemblies/samples throughout the sequence.Table 5.1Required testsTest Reference (Standard, Section) Sample RequirementsAs Received TestsLeakage Current Test UL 1703, 21 3 assemblies, matedDielectric Voltage Withstand Test UL 1703, 26 3 assemblies, matedWet Insulation Resistance Test UL 1703
21、, 27 3 assemblies, matedWater Spray SequenceWater Spray Test UL 1703, 33 3 assemblies, matedDielectric Voltage Withstand Test UL 1703, 26Leakage Current Test UL 1703, 21Temperature Cycling SequenceTemperature Cycling Test UL 1703, 35 3 assemblies, matedDielectric Voltage Withstand Test UL 1703, 26Le
22、akage Current Test UL 1703, 21Wet Insulation Resistance Test UL 1703, 27Humidity Cycling SequenceHumidity Cycling Test UL 1703, 36 3 assemblies, matedDielectric Voltage Withstand Test UL 1703, 26Leakage Current Test UL 1703, 21Wet Insulation Resistance Test UL 1703, 27Current Interruption Sequence (
23、ac ratings only), see 6.2OverloadaUL 1977, 15 6 assemblies, matedTemperature UL 2238, 25OCTOBER 7, 2010SUBJECT 6703A6Table 5.1 Continued on Next PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 5.1 ContinuedTest Reference (Standard, S
24、ection) Sample RequirementsDielectric Voltage Withstand Test UL 2238, 21bResistance to Arcing TestaUL 1977, 18Temperature SequencecTemperature UL 2238, 25 6 assemblies, matedDielectric Voltage Withstand Test UL 2238, 21bAdditional Tests to UL 1703Strain Relief Test UL 1703, 22 6 assemblies, 3 mated
25、and 3 not matedImpact Test UL 1703, 30 3 assemblies, matedLow Temperature Impact Test UL 1703, 30 3 assemblies, matedAccelerating Aging of Gaskets Test UL 1703, 34 Requires material samplesAdditional Tests to UL 746CCrush Resistance Test UL 746C, 21 3 assemblies, matedMold Stress-Relief Distortion T
26、estFollowed by Strain Relief TestUL 746C, 29 and UL 1703, 22 6 assemblies, matedAdditional tests to UL 2238Insulation Resistance UL 2238, 22 1 assembly, matedConductor Secureness UL 2238, 23 6 samplesPolarization UL 2238, 28 1 assemblyGrounding Impedance UL 2238, 31 6 assembliesStrength of Insulatio
27、n Base UL 2238, 37.7 6 assembliesGrounding (Bonding) Path Current UL 2238, 37.8 6 assembliesAssembly UL 2238, 37.9 6 assembliesAccelerated Aging UL 2238, 37.10 6 assembliesPVC Compounds and Copolymers UL 2238, 37.11 6 assembliesAdditional tests to UL 486A-486BDielectric Voltage Withstand UL 486A-486
28、B, 9.5 24 assemblies, max b) The minimum and maximum number of conductor strands;c) The minimum and maximum wire size or wire range; andd) A statement that the conductor type is limited to copper wire only ( “Copper” or “CU” areacceptable).6.4 A procedure that must be followed for proper assembly of
29、 a PV connector to a conductor shall beprovided as follows:a) USE OF A SPECIFIC TOOL REQUIRED - If a connector is intended to be assembled to aconductor(s) by a specific tool, the tool designation or the designation of a removable tool part,such as a pressing die, shall be marked on the connector, o
30、r on or within the unit container inwhich the connector is packed. The marking shall be by at least one of the following means:1) Catalog or type designation;2) Color coding;3) Die index number; orOCTOBER 7, 2010SUBJECT 6703A8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBU
31、TION WITHOUT PERMISSION FROM UL4) Other equivalent means.b) MULTIPLE CRIMPING OPERATIONS - Information shall appear either:1) On the unit container in which the connector is packed;2) On the tool or pressing die that must be used for its application;3) On the carrying case provided for permanent sto
32、rage of the tool and dies; or4) On the connector.Location of the crimping points only, without additional instructions, may be marked onthe connector if the additional required information is located as indicated in item (1),(2), or (3).c) CONDUCTOR STRIP LENGTH - Strip length marking shall appear:1
33、) On the connector;2) On the unit container or on an information sheet contained therein;3) On an insulating cover; or4) On the tool or on the carrying case provided for its permanent storage if:i) The connector requires the use of a specific tool for its application; andii) The strip length applies
34、 to all insulated connectors with which the tool isused.d) PRELIMINARY PREPARATION OF CONDUCTOR REQUIRED - Instructions for preparationof the conductors, such as twisting conductors together before assembly, shall appear on theunit container or an information sheet packed in the unit container.6.5 I
35、f the PV connector has an assigned tightening torque, the assigned value shall be marked wherereadily visible on:a) The connector;b) The unit container; orc) An information sheet packed in the unit container.6.6 A unit container or an information sheet shall be marked with:a) The manufacturers name;
36、 andb) A distinctive catalog number of the connector.OCTOBER 7, 2010 SUBJECT 6703A 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL6.7 Separable parts of a PV connector intended to be installed in the field shall be supplied together andassem
37、bled according to 6.4.6.8 An information sheet shall be marked with the manufacturers name, the catalog number of theconnector to which it pertains or equivalent, and all the other necessary information required by theserequirements. One information sheet shall be provided for each unit container.6.
38、9 The information in 6.2 6.8 shall not be divided between a unit container and an information sheet.If any of the required markings are placed either on the unit container or on the information sheet packedin the unit container, rather than on the connector, then all applicable markings as specified
39、 in the 6.2 6.8, in their entirety, shall be so placed.OCTOBER 7, 2010SUBJECT 6703A10UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULAPPENDIX AStandards for ComponentsStandards under which components of the products covered by this outline are
40、 evaluated include thefollowing:Title of Standard UL Standard DesignationCable Assemblies and Fittings for Industrial Control and Signal Distribution UL 2238Connectors for Use in Data, Signal, Control and Power Applications UL 1977Marking and Labeling Systems UL 969Plastic Materials for Parts in Dev
41、ices and Appliances, Tests for UL 94Polymeric Materials Short Term Property Evaluations UL 746APolymeric Materials Long Term Property Evaluations UL 746BPolymeric Materials Use in Electrical Equipment Evaluations UL 746CTerminal Blocks UL 1059Wire Connectors UL 486A-486BOCTOBER 7, 2010 SUBJECT 6703A A1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULOCTOBER 7, 2010SUBJECT 6703AA2No Text on This Page
