That happens if there’s an appliance with a metal case and the insulation on the live wire in the appliance is damaged, causing the copper ... isolating the grid from the earth.

Glenn Arcos / AFP via Getty Images In recent weeks, you’ve likely heard a lot about rare-earth substances ... to the power grid, further straining the demand-side of the copper equation.

Neutral wire Copper wire coated with blue plastic that also connects to the cable in the wall and completes the circuit Earth wire Copper wire coated in striped plastic that provides a path for ...

In recent weeks, you've likely heard a lot about rare-earth substances, thanks to President Trump's stalled efforts to secure a minerals deal with Ukraine and his talk of annexing Greenland.

In recent weeks, you've likely heard a lot about rare-earth substances, thanks to President Trump's stalled efforts to secure a minerals deal with Ukraine and his talk of annexing Greenland. These ...