> (ie, how do workers lock out feed to grid when working on lines etc) Part of PTO is an inspection and one of the requirements to pass is that there's an ED o

> (ie, how do workers lock out feed to grid when working on lines etc) Part of PTO is an inspection and one of the requirements to pass is that there's an ED on the exterior of your home so the power company can come by and disconnect you from the grid. It's kind of the reverse of registering life support systems with the power company so they know not to shut off your power.