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Two Measures, Two Levels

What is a “level of protection”? What are “measures of safety”? Why do they apply only to electric shock and not to other injuries?

New Edition of UL 62109-1 Published

A new edition of UL 62109-1 has been published. UL-62109-1 applies to “Safety of power converters for use in photovoltaic power systems - Part 1: General requirements.” The standard is available for purchase on... Read More...