1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULUNDERWRITERS LABORATORIES INC. CERTIFICATION REQUIREMENT DECISIONThis Certification Requirement Decision is prepared and published by Underwriters Laboratories Inc.(UL). It is normative for the a
2、pplicable UL Product Certification Program(s); however, it is currently notpart of the UL Standard(s) referenced below.Product Category (CCN): QIFA2, QIJQ2Standard Number: UL 6703Standard Title: Standard for Connectors for Use in Photovoltaic SystemsEdition Date: August 28, 2014Edition Number: 1Sect
3、ion / Paragraph Reference: 1.1, 4.7, 10.2, 11.2, 11.3Subject: Single Pole Connectors used in AC CircuitsDECISION:Clarification that both single and multi-pole PV connectors maybe rated for either ac or dc voltageapplications.1 Scope1.1 This standard covers latching or locking type PV connectors eith
4、er as a free connector (separateentity) or as a fixed connector (panel or bulkhead type) and rated 1000 V ac or dc or less. Theseconnectors are intended for use in wiring methods detailed in Part IV of Article 690 - Solar PhotovoltaicSystems of the National Electrical Code, NFPA 70.CONSTRUCTION4 Gen
5、eral4.7 The configuration of a connector identified and intended for use on dc circuits and those identified andintended for use on ac circuits, shall be designed in such a manner as to prevent interchangeabilitybetween different voltages (i.e. ac or dc).RATINGS10 Details10.2 An ac voltage rating fo
6、r a multi pole device that has been evaluated for current interruption (Overloadand Resistance to Arcing tests) shall be identified by AC or AC only and need not be markedaccording to 11.1(d). Any dc rating shall have the statement in 11.1(d) clearly associated and marked withthe dc rating.MARKINGS1
7、1.2 The polarity on DC voltage -PV connectors shall be identified with one of the following markingstatements:a) + and -;b) POS and NEG;orc) POSITIVE and NEGATIVE.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL11.3 For an AC voltage PV connec
8、tor designated for connection to the identified grounded(white/neutral) circuit conductor shall be identified by a white-colored housing. Devices designated forconnection to the identified grounding (green/grounding) circuit conductor shall be identified by a green-or green/yellow-colored housing. A
9、ll other device housings shall be colored other than green or white andreadily distinguishable from each other.RATIONALE FOR DECISION:It was brought to ULs attention that both single and multi-pin single PV connectors are used in either acor dc voltage applications. The intent of these revisions is
10、to clarify that either single-pin or multi-pinconnectors maybe rated for either ac or dc voltage applications.Copyright 2014 Underwriters Laboratories Inc.UL, in performing its functions in accordance with its objectives, does not guarantee or warrant thecorrectness of Certification Requirement Deci
11、sions it may issue or that they will be recognized or adoptedby anyone. Certification Requirement Decisions are the opinion of Underwriters Laboratories Inc. inpractically applying the requirements of the standard. They do not represent formal interpretations of thestandard under American National S
12、tandards Institute (ANSI) processes. UL shall not be responsible toanyone for the use of or reliance upon Certification Requirement Decisions by anyone. UL shall not incurany obligation or liability for damages, including consequential damages, arising out of or in connectionwith the use or reliance upon Certification Requirement Decisions. The electronic version of theCertification Requirement Decision is the current version and previously printed copies may be outdated.This document is published as a service to ULs certification customersSTANDARD NUMBER: UL 6703 -2-
