UL 1741 BULLETIN-2014 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources (COMMENTS DUE: April 07@ 2014)
This part of IEC 62109 applies to the power conversion equipment (PCE) for use in Photovoltaic (PV) systems where a uniform technical level with respect to safety is necessary. This standard defines the minimum requirements for the design and manufacture of PCE for protection against electric shock@ energy@ fire@ mechanical and other hazards. This standard provides general requirements applicable to all types of PV PCE. There are additional parts of this standard that provide specific requirements for the different types of power converters@ such as Part 2 ?C inverters. Additional parts may be published as new products and technologies are commercialised. Equipment included in scope This standard covers PCE connected to systems not exceeding maximum PV source circuit voltage of 1 500 V d.c. The equipment may also be connected to systems not exceeding 1 000 V a.c. at the a.c. mains circuits@ non-mains a.c. load circuits@ and to other DC source or load circuits such as batteries. This standard may be used for accessories for use with PCE@ except where more appropriate standards exist. Evaluation of PCE to this standard includes evaluation of all features and functions incorporated in or available for the PCE@ or referred to in the documentation provided with the PCE@ if such features or functions can affect compliance with the requirements of this standard. Equipment for which other requirements may apply This standard has not been written to address characteristics of power sources other than photovoltaic systems@ such as wind turbines@ fuel cells@ rotating machine sources@ etc. NOTE 1 Requirements for other sources may be incorporated in the IEC 62109 series in the future. Additional or other requirements are necessary for equipment intended for use in explosive atmospheres (see IEC 60079)@ aircraft@ marine installations@ electromedical applications (see IEC 60601) or at elevations above 2 000 m. NOTE 2 Requirements are included for adjustment of clearance distances for higher elevations@ but not for other factors related to elevation@ such as thermal considerations
UL 1741 BULLETIN-2014 history
1970UL 1741-2022 Static inverters and charge controllers for use in photovoltaic power systems
2020UL 1741 CRD-2020 Standard for Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources (Certification Requirement Decision, 3/11/2020)
2018UL 1741 CRD-2018 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources - Section / Paragraph Reference: New Subject: Power Control Systems (PCS) (Edition 2: April 20@ 2010)
2018UL 1741 BULLETIN-2018 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources (COMMENTS DUE: February 12@ 2018)
2017UL 1741 BULLETIN-2017 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources (COMMENTS DUE: January 23@ 2017)
2016UL 1741 CRD-2016 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources - Section / Paragraph Reference: New Sections – 40B1- 40B2 Subject: Additional Requirements for Single Phase 2 Wire Ut
2016UL 1741 BULLETIN-2016 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources (COMMENTS DUE: September 5@ 2016)
2015UL 1741 CRD-2015 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources -Section / Paragraph Reference: New Sections – 40B1- 40B2 Subject: Additional Requirements for Single Phase 2 Wire Uti
2015UL 1741 BULLETIN-2015 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources
2014UL 1741 BULLETIN-2014 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources (COMMENTS DUE: April 07@ 2014)
2013UL 1741 CRD-2013 UL Standard for Safety Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources - Section / Paragraph Reference: Sec. 101 to 107 Subject: Clarification for PV Input Circuit Combiners and PV Combiner
2013UL 1741 BULLETIN-2013 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources (COMMENTS DUE: October 21@ 2013)
2012UL 1741 CRD-2012 UL Standard for Safety Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources - Section / Paragraph Reference: New Section 108 Subject: Arc Fault Circuit Protection (Edition 2: January 28, 2010)
2012UL 1741 BULLETIN-2012 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources (COMMENTS DUE: August 13@ 2012)
2011UL 1741 CRD-2011 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources - Section / Paragraph Reference: New Section 108 Subject: Arc Fault Circuit Protection (Edition 2: January 28@ 2010)
2011UL 1741 BULLETIN-2011 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources
2010UL 1741 CRD-2010 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources - Section / Paragraph Reference: New proposed sections 87 to 100. Subject: Non-Isolated EPS Interactive PV Inverters R
2010UL 1741 BULLETIN-2010 Summary of Topics This bulletin announces the availability of the Outline of Investigation for Enclosed and Dead-Front Switches for Use in Photovoltaic Systems, Subject 98B.
2010UL 1741-2010 Inverters, converters, controllers and interconnection system equipment for use with distributed energy resources
2009UL 1741 BULLETIN-2009 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources (COMMENTS DUE: JULY 13@ 2009)
2008UL 1741 BULLETIN-2008 UL Standard for Safety Inverters@ Converters@ and Controllers for Use in Independent Power Systems (COMMENTS DUE: October 27@ 2008)
2005UL 1741 BULLETIN-2005 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources
2004UL 1741 BULLETIN-2004 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources
2001UL 1741 BULLETIN-2001 UL Standard for Safety Inverters@ Converters@ Controllers and Interconnection System Equipment for Use With Distributed Energy Resources
1999UL 1741-1999 Static inverters and charge controllers for use in photovoltaic power systems