Note to readers: NEC is National Electric Code, which is the regulation of all electrical installations in the USA. The NEC here is not Numerical Electromagnet

Note to readers: NEC is National Electric Code, which is the regulation of all electrical installations in the USA. The NEC here is not Numerical Electromagnetics Code, an electromagnetic simulation program, commonly used for antennas, which often have a ground connection as well. And it's obviously not the NEC Corporation, the Japanese electric company, whose semiconductor department is now a separate company known as Renesas. When I first saw the title, it took me a few seconds in my mind to solve the hash conflict here. I wonder how many people on HN know all of these entities simultaneously.