|
UL 1741 |
|
|
|
|
|
Organization |
Underwriters Laboratories |
|
|
|
|
Identification |
UL Subject 1741 |
|
|
|
|
Scope |
1.1 These requirements cover inverters,
converters, charge controllers, and interconnection system equipment (ISE)
intended for use in stand-alone (not grid-connected) or utility-interactive
(grid-connected) power systems. Utility-interactive inverters, converters,
and ISE are intended to be operated in parallel with an electric power system
(EPS) to supply power to common loads. 1.2 For utility-interactive
equipment, these requirements are intended to supplement and be used in
conjunction with the Standard for Interconnecting Distributed Resources With
Electric Power Systems, IEEE 1547, and the Standard for Conformance Test
Procedures for Equipment Interconnecting Distributed Resources with Electric
Power Systems, IEEE 1547.1. 1.3 These requirements cover
AC modules that combine flat-plate photovoltaic modules and inverters to
provide AC output power for stand-alone use or utility-interaction, and power
systems that combine other alternative energy sources with inverters,
converters, charge controllers, and interconnection system equipment (ISE),
in system specific combinations. 1.4 These requirements also
cover power systems that combine independent power sources with inverters,
converters, charge controllers, and interconnection system equipment (ISE) in
system specific combinations. 1.5 The products covered by these requirements are intended
to be installed in accordance with the National Electrical Code, NFPA 70. |
|
|
|
|
Status |
Third edition published in September 2021 as an ANSI
standard. Available
at www.ul.com |
|
|
|