1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 6703 Connectors for Use in Photovoltaic SystemsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZE
2、D FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Connectors for Use in Photovoltaic Systems, UL 6703 First Edition, Dated August 28, 2014 Summary of Topics This revision of ANSI/UL 6703 includes clarication of requirements for the Strain Relief Test. T
3、he revised requirements are substantially in accordance with Proposal(s) on this subject dated September 26, 2014. For further information regarding Summary of Requirements, please visit https:/ THIS FIRST EDITION, INCLUDING REVISIONS DATED JANUARY 16, 2015, REPLACES THE OUTLINE OF INVESTIGATION FOR
4、 CONNECTORS FOR USE IN PHOTOVOLTAIC SYSTEMS, UL 6703, AND THE OUTLINE OF INVESTIGATION FOR MULTI-POLE CONNECTORS FOR USE IN PHOTOVOLTAIC SYSTEMS, UL 6703A. AS OF FEBRUARY 29, 2016, OUTLINE UL 6703, THIRD ISSUE AND OUTLINE UL 6703A, FIRST ISSUE WILL BE WITHDRAWN. All rights reserved. No part of this
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7、ity to use this Standard, even if UL or an authorized UL representative has been advised of the possibility 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 Standa
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9、r system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, 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 th
10、at have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. JANUARY 16, 2015 UL 6703 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 16, 2015 UL 6703 tr2 No Text on This Pa
11、geUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL August 28, 2014 (Title Page Reprinted: January 16, 2015) 1 UL 6703 Standard for Connectors for Use in Photovoltaic Systems Prior to the rst edition, the requirements for the products covered
12、by this standard were included in the Outline of Investigation for Connectors for Use in Photovoltaic Systems, UL 6703 and the Outline of Investigation for Multi-Pole Connectors for Use in Photovoltaic Systems, UL 6703A. First Edition August 28, 2014 This ANSI/UL Standard for Safety consists of the
13、First Edition including revisions through January 16, 2015. The most recent designation of ANSI/UL 6703 as an American National Standard (ANSI) occurred on January 16, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page, or effective date information. Co
14、mments 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-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted by UL. Neither a printed nor ele
15、ctronic 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 the sole and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC. ANSI/UL 6703-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED
16、 FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL AUGUST 28, 2014 CONNECTORS FOR USE IN PHOTOVOLTAIC SYSTEMS - UL 6703 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .4
17、2 General 4 2.1 Components .4 2.2 Units of measurement .5 2.3 Undated references .5 3 Glossary .5 CONSTRUCTION 4 General 6 5 Current Carrying Parts (Contacts) .7 6 Polymeric Materials .7 6.1 General .7 6.2 Insulating material 8 6.3 Gaskets, Seals and O rings 9 7 Spacings .9 8 Accessibility of Uninsu
18、lated Live Parts 10 PERFORMANCE 9 PV Connector Tests 11 9.1 General 11 9.2 Effectiveness of Locking and Strain Relief tests .15 9.3 Gasket tests 16 RATINGS 10 Details .17 MARKINGS INSTRUCTIONS 12 Assembly Instructions .18 12.1 Dissemination 18 12.2 Required content .19 12.3 Assembly procedure 20 12.
19、4 Verication 20 APPENDIX A Standards for Components .A1 AUGUST 28, 2014 CONNECTORS FOR USE IN PHOTOVOLTAIC SYSTEMS - UL 6703 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 This standard covers latching or locking t
20、ype PV connectors either as a free connector (separate entity) or as a xed connector (panel or bulkhead type) and rated 1000 V dc or less. These connectors are intended for use in wiring methods detailed in Part IV of Article 690 Solar Photovoltaic Systems of the National Electrical Code, NFPA 70. 1
21、.2 This standard is intended for single polarity PV connectors suitable for use on insulated, stranded copper type USE-2 or Photovoltaic Wire (PV Wire) rated 90C, 105C, 125C, or 150C dry; 90C wet; 600, 1000, or 2000 V. 1.3 This standard also covers latching or locking type multi-pole PV connectors r
22、ated 1000 Vac or dc or less. Multi-pole PV connectors consist of connectors, panel mounted connectors, distribution blocks and splitter connectors for the purpose of facilitating connections to and from inverters and like devices in a PV system. 1.4 This standard is also intended for multi-pole PV c
23、onnectors suitable for use on insulated, stranded copper type TC-ER, USE-2 or Photovoltaic Wire (PV Wire) rated 90C, 105C, 125C, or 150C dry; 90C wet; 600, 1000, or 2000 V. 1.5 This standard covers PV connectors whose dimensions are not dened in any national or international technical standard. Conn
24、ectors are identied and tested with compatible mating part (or parts if multiple exist) and are to be of the same brand, unless multiple product manufacturers are submitting under the same evaluation for the purpose of proving intermatability. 1.6 This standard does not apply to PV wiring harnesses
25、or cable assemblies consisting of connectors (single pole or multi-pole) assembled on to cables, which are covered by the Outline of Investigation for Distributed Generation Wiring Harnesses, UL 9703. PV Wiring Harnesses may use PV connectors covered by this standard in their assembly. Harnesses hav
26、e PV connectors factory assembled onto each end of the cable. 2 General 2.1 Components 2.1.1 Except as indicated in 2.1.2, 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 generally use
27、d in the products covered by this standard. 2.1.2 A component is not required to comply with a specic requirement that: a) Involves a feature or characteristic not needed in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standar
28、d. AUGUST 28, 2014 CONNECTORS FOR USE IN PHOTOVOLTAIC SYSTEMS - UL 6703 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2.1.3 A component shall be used in accordance with its recognized rating established for the intended conditions of use.
29、 2.1.4 Specic components are recognized as being incomplete in construction features 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 con
30、ditions for which they have been recognized. 2.2 Units of measurement 2.2.1 The requirements in this standard are stated in metric units that make the requirement conveniently useable in countries employing the various metric systems (practical SI and customary). In addition to being stated in metri
31、c units, the inch/pound units, that are customary in the USA, are also provided. The values given in SI (metric) units shall be normative, except for AWG conductor sizes. Any other values given are for information purposes only. 2.2.2 Equivalent although, not necessarily exactly identical results ar
32、e to be expected from applying a requirement in USA or metric terms. Equipment calibrated in metric units is to be used when a requirement is applied in metric terms. 2.3 Undated references 2.3.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be inte
33、rpreted as referring to the latest edition of that code or standard. 3 Glossary 3.1 For the purpose of this standard, the following terms and denitions apply. In addition, see the Glossary section of the Standard for Cable Assemblies and Fittings for Industrial Control and Signal Distribution, UL 22
34、38, for multi-polarity devices. 3.2 ACCESSIBLE PART a part so located that it can be contacted by a person, either directly or by means of a probe or a tool, or that is not recessed the required distance behind an opening. 3.3 AMBIENT TEMPERATURE maximum temperature of the ambient as assigned by the
35、 manufacturer, in which the connector is able to operate permanently without the maximum operating temperature being exceeded. 3.4 DISTRIBUTION BLOCK an insulated tting with or without mounting options that terminates in two or more outlets or that terminates in two or more female cable ttings for t
36、he purpose of distributing power to additional outlets/inlets. 3.5 ENCLOSURE that part of the connector that: a) renders inaccessible all or any parts of the connector that may otherwise present a risk of electric shock, and/or b) retards propagation of ame initiated by electrical disturbances occur
37、ring within. 3.6 MAXIMUM OPERATING TEMPERATURE (MOT) UPPER LIMITING TEMPERATURE maximum temperature of a connector as dened by the manufacturer in which the connector is intended to operate. AUGUST 28, 2014 CONNECTORS FOR USE IN PHOTOVOLTAIC SYSTEMS - UL 6703 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED
38、FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.7 OVERMOLD additional material applied over the enclosure and cable to provide additional environmental protection and sealing. CONSTRUCTION 4 General 4.1 Only materials that are acceptable for the particular use shall be employed
39、 in a PV connector. PV connectors shall be made and nished with the degree of uniformity and grade of workmanship that are practicable in a well-equipped factory. 4.2 A PV connector shall comply with the requirements in the Standard for Wire Connectors, UL 486A-486B, as appropriate, and with this st
40、andard. 4.3 Multi-pole PV connectors shall additionally comply with the following construction requirements, as appropriate, in the Standard for Cable Assemblies and Fittings for Industrial Control and Signal Distribution, UL 2238: a) Grounding and Dead-Metal Parts (Section 9); b) Terminals (Section
41、 10); c) Strain Relief and Cord Entries (Section 11); and d) Assembly (Section 13). 4.4 There shall be no sharp edges or corners on the outer surface of a PV connector that can result in damage to the PV wire insulation that the connector contacts. 4.5 Latching connectors shall not require the use o
42、f a tool to unlatch. Latching connectors shall incorporate a suitable latching mechanism such as ribs, twisting action, or other latching mechanisms between the mated pair. 4.6 Locking connectors shall require the use of a tool to unlock the connectors in a mated position. A tool can be a specialize
43、d device provided by the manufacturer or a standard common device, i.e. screwdriver. The tool and its operation shall be identied in the manufacturers assembly instructions, see 12.2.1(d)(8). AUGUST 28, 2014 CONNECTORS FOR USE IN PHOTOVOLTAIC SYSTEMS - UL 6703 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED
44、 FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 5 Current Carrying Parts (Contacts) 5.1 The current-carrying part of a connector shall be copper or copper alloy. Current-carrying parts containing more than 15% zinc shall comply with 7.12.3 of the Standard for Wire Connectors, UL
45、 486A-486B. 6 Polymeric Materials 6.1 General 6.1.1 Polymeric materials may be used as an enclosure or as insulating materials that are in direct contact with or in close proximity, less than 0.8 mm (1/32 in), to live parts. When the same material is used for both purposes, the more stringent requir
46、ements shall be applied. 6.1.2 Polymeric materials employed as a part of the connector shall be suitable for its rated temperature. The relative thermal index (RTI), electrical, mechanical impact (IMP) and mechanical strength (STR), as determined in accordance with the Standard for Polymeric Materia
47、ls Long Term Property Evaluations, UL 746B, shall not be less than 20C (36F) above the maximum operating temperature rating for the connector as specied by the manufacturer. For soft materials, such as elastomers, where the RTI Mechanical IMP cannot be determined, or for those connectors protected f
48、rom impact under use, the RTI mechanical IMP is not required. 6.1.3 A polymeric material serving as the enclosure of a part involving a risk of re or electric shock shall comply with the applicable requirements in the Standard for Polymeric Materials Use in Electrical Equipment Evaluations, UL 746C,
49、 concerning: a) Ultraviolet light exposure, and Note: An f1 rating signies compliance, an f2 rating requires further investigation into its suitability. b) Water exposure and immersion. 6.1.4 A polymeric material serving as the enclosure shall have a minimum ammability classication of V-0 or 5VA as determined by tests described in the Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL 94. The material thickness
