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Low voltage surge protective devices for D. All the Grid Tie Inverters are accompanied with their lab test report from the country of origin. Testing and measurement techniques — Surge immunity test IEC In the end-product application, UL Recognized Components may sometimes need additional evaluation to function correctly and safely due to the environment in which they reside.
IEC standards for PV modules.
While based on the foundation of ULIEC is somewhat different because IEC it was specifically developed to also address not only ied gaps in UL but also the challenges of emerging PV power conversion technologies. General requirements IEC Climatic, mechanical tests and safety aspects for cabinets, racks, subracks and chassis IEC This approach also included areas of refinement for both construction and testing requirements present in ULwhich UL had not previously addressed.
Bundling safety, performance and interoperability services results in savings of both time and money. In summary, achieving UL certifications to product safety standards help manufacturers like SMA ice that a product operates more safely with expected normal use, as well as under foreseeable abnormal conditions.
New Inverters Benefit from the Updated UL 62109 Standard
The UL Mark can then be applied to the certified product and it can be sold in the U. Other national differences include references to UL for grid interactive product requirements and expansion of the requirements for jec products that operate both grid-tied and stand-alone.
The UL Mark is one of the most recognized, accepted and trusted certification marks on the planet, appearing on nearly 22 billion products worldwide. All of these factors result in less project coordination time and ultimately, a faster product launch.
New Inverters Benefit from the Updated UL Standard | Industries | UL
To compare, UL specifies approximately 20 different tests and they are not all obligatory since this standard was written to address all forms of DGnor are they necessarily related to PV application. UL is the only certification organization in the world authorized to issue UL Marks. In addition to the harmonization of both standards, IEC and UL have major positive cost impacts for international inverter manufacturers.
The end result is that the inverter can be brought to market more quickly with a lower cost of production. Manufacturers who plan to sell their inverter products in the U.
These products can be evaluated to the standard for the U. In addition, PV systems are challenged to provide a safe environment for new technology both in new installation modes implemented in newly built PV plant and building applications, as well as when integrated with existing buildings and infrastructure. UL specifies more than 50 different tests, which is significantly more than specified by UL General requirementspublished in Since UL has not been released, an alternative had to be identified.
The following standards list requirements for solar inverters such as the desired nameplate information, requirements for safe operation of inverters, procedures for measuring efficiency, general standard for inverters connected in independent power system, and many other requirements.
NEC requirements for electrical power system compatibility. This work includes significant revisions to the U. PV inverter product safety certifications. It is now the U.
UL evaluates for safety risks including from electric shock and fire. Generators — Photovoltaic generators IEC UL addresses hazard prevention at a more granular level, which allows for greater flexibility in inverter design.
Principles, requirements and tests IEC The result was an evaluation addressing 62019-2 classic safety challenges addressed in ULwith the additional evaluation of new risks for inverters and distributed generation products through the application of a modern, streamlined methodology. As stated earlier, UL is a standard written for PV inverters only, which benefits customers because it means that inverters are now undergoing more testing to help ensure safety, reliability and functionality.
These requirements allow products designed for the international market to more easily enter the U.