http://nutris.net/members/mole....flight66/activity/23
https://huffman-cain.hubstack.....net/low-cost-ul3703-
UL3703: Standard with regard to Photovoltaic Module Security Overview: UL3703 covers the safety specifications for photovoltaic (PV) modules and devices. It focuses upon ensuring that sun modules can stand up to environmental conditions in addition to operate safely more than their intended life-span. Key Points: Mechanical Integrity: Tests regarding strength against blowing wind, snow loads, plus mechanical stresses. Power Safety: Ensures proper insulation, groun