The National Electric Safety Code (NESC) includes a clause sometimes referred to as the “5-mA Rule,” which states: For voltages exceeding 98 kV ac to ground, either the clearances shall be increased ...

This story was produced by Grist and co-published with Verite News. When a winter storm knocked out Texas’ power grid in 2021, the scale of the devastation it wrought was exacerbated by a singular ...