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): QIKHStandard Number: UL 1741Edition Date: January 28, 2010Edition Number: 2Section / Paragraph Reference: New Section 108Subject: Arc Fault Circuit Protectio
3、nDECISION:108 Arc Fault Circuit Protection108.1 Products that include arc fault protection functionality shall comply with the applicable portions ofUL Subject 1699B, Outline For Photovoltaic (PV) DC Arc-Fault Circuit Protection.RATIONALE FOR DECISION:The 2011 NEC, NFPA 70, includes a new clause 690
4、11 that requires PV arc fault protection in specificPV applications. Many of the products covered under UL 1741 may include arc fault protection. As UL1741 does not include requirements for the evaluation of arc fault protection functionality, it needs to beupdated to include a reference to the rec
5、ently published UL Subject 1699B, Outline For Photovoltaic (PV)DC Arc-Fault Circuit Protection.Copyright 2011 Underwriters Laboratories Inc.UL, in performing its functions in accordance with its objectives, does not guarantee or warrant thecorrectness of Certification Requirement Decisions it may is
6、sue 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 Standards Instit
7、ute (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 Certifica
8、tion 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electronic version of theCertification Requirement Decision is the current version and previously printed copies may be outdated.This document is published as a service to ULs certification customersUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULSTANDARD NUMBER: UL 1741 -2-No Text on This Page
