With new technologies, safety standards must be in place to protect ...

UL Product iQ database is the next generation of UL’s Online ...

Take this quiz on solar photovoltaic requirements in the 2017 National ...

I am having trouble interpreting Section 705.12(D)(3) [NEC 2011] and the ...

These voltage drop formulas are based on conductor DC resistance values ...

New and exciting improvements in the photovoltaic (PV) modules and PV ...

By now, we’ve all had the opportunity to experience a PV ...

For many years, photovoltaic (PV) plants were designed to a 20-year ...

Wiring methods for Class I, Division 2 locations are addressed in ...

The terms “suspended ceiling” and “plenum” are widely used in the ...