Like the ones Hams use to protect their radios from lighting strikes on the antenna?
Like those, for example?
Lightning Surge Suppressors already exist on essentially every high voltage line and significant transformers in the US.
What are the ratings? That also may keep a direct strike or very near by strike from drawing damage down from the antenna, but it does not preclude an EMF from inducing a current into the system through house wiring after the SP that will damage electronics. SPs are good but I only used them to protect from downstream surges (e.g., power line.)
THE EMF doesn’t always ONLY go for the SP.
Path of least resistance. The system will always damage itself to protect the fuse. Been there done that.
“Like the ones Hams use to protect their radios from lighting strikes on the antenna?”
Exactly why I am suspicious of this bill. Even neighborhood transformers have grounding and many have shielded electronic circuit breakers.
The technology has been around since the ‘40s when the government started designing for EMPs of nuclear weapons.
If this just raises the bar to ensure transformers can withstand a vigorous EMP I’m fine with it but I suspect it’s the beginning of a new control, err, “management” program for the government.