Why was UL 758 developed?
UL 758 was developed to consolidate requirements. Over the 40 years the category has been in existence, many people have had different interpretations of how to evaluate the wire. These procedures evolved over time. In addition to the 124 page Section General, many “desktop” standards or outlines were used to evaluate wire constructions. So that all customers and users of AWM were aware of the test protocol and requirements, and that consistency was maintained, UL 758 was formed.
