So your circuit lines have to be made of tungsten instead.

FORBES: It's all in the packaging

The rooms are designed like upgraded 1950s bomb shelters, with air filters to screen out biological agents, dedicated phone lines, bathrooms and closed-circuit TV systems.

FORBES: Magazine Article

Hundreds of thousands of switches and circuit breakers must be operated manually, and the main transmission lines have little instrumentation to monitor the second-by-second flow of electricity from unpredictable new sources like windmills.

FORBES: Juicing the System

Ms Hersman said they were now following up two lines of inquiry - the actual cause of the short circuit, and why the certification process failed to pick up the defect in the battery's design.

BBC: Boeing 787 Dreamliner tests 'missed fire risk'

Terry Morgan, a former boss of Tube Lines, used to describe how his engineers had spent months checking wiring in tunnels and drawing circuit diagrams from scratch.

ECONOMIST: The Tube upgrade deals