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Given the collateral issues of CME/EMPs, it seems that I would be better off going with multiple FS140s and wiring them in at the main panel and PV input to house, along with additional devices to protect against external runs of RJ-45 and coax
@BrettS - do you also have a coax surge filter for cable?
Any photos of the internal FS140 wiring on the main?
An EMP is not only through the wires but airwaves like a radio transmitter so it can fry things that this gizmo cannot protect.I took a look at the EMP Shield website and the whole thing just kind of reeks of snake oil to me. I can’t even make sense of half of their claims here:
But an EMP may take it out if it on and perhaps even when shut down it may create destructive currents on the chips and boards.... I also don’t have phone service, so no need to worry about a surge coming in that way.
....
I've been next to light bulbs, that were off, that exploded from the induced current of a nearby lightning strike.
I've also been close to trees that were hit by lightning with no damage to anything beyond the tree. It's all in the details
Yep. So one emp blocker at panel as advertised is useless.Yes, EMP is through space, inducing voltage and current wherever it hits a conductor. Once it is in the conductor, the power surge is a problem for anything electrical. I've had electric ranges fry.
That said, having surge suppressors, plural, distributed around the house will help keep the peak voltage and currents lower, and hopefully at safe levels. If you get hit, well if your house gets hit, with lightning, that's millions of volts, (10^10 watts+/-) and the induced voltages/currents are likely to fry all sorts of things. But... the more suppression that you have the more the induced voltage will be clipped at nondestructive levels. Or put differently, adding suppression means that your electronics will survive a closer hit.
I've been next to light bulbs, that were off, that exploded from the induced current of a nearby lightning strike. Don't think that one MOV package alone will save everything. If you are in a bad area, you would also want to have lightning rods, underground wiring, and surge suppression. There are pages and pages of data and advice out there to help.
I've also been close to trees that were hit by lightning with no damage to anything beyond the tree. It's all in the details.
I believe central Florida is host to the lightning research institute for a reason...
Stay safe.
All the best,
BG
I am thinking of EMP from an attack going through the atmosphere and causing damage to stuff no matter if you have a whole house protection.I am not sure that I would say one is useless. I would rather have a house with one than none, but I would prefer to have one on the entry, and other surge suppressors in front of sensitive electronics.
I think of an EMP like a really fast tidal wave- it is going to come surging by every point in the house, and you can better limit the damage with having more places, and stronger tie downs, the better. You can have really big tidal waves and little tiny ones. Ditto EMPs. If you don't live in an area with thunderstorms, or at the bottom of a steep valley, it isn't much of an issue. Florida, the Great Plains, different story.
If the lightning hits your house, there is going to be a big through space EMP component. We have so much in the way of electronics that runs on a volt or three, and they aren't very tolerant of surges of a couple of volts, much less tens or hundreds of volts, and every little cable acts like an antenna for EMP. If lightning hits your power line a mile a way, not so much of an EMP, but the mile away strike will still put a big electrical pulse down your electrical wires. Fortunately, modern power supplies are better able to withstand surges on the supply side. Operative word being better.
Surge suppressors are eaten away with each pulse that they absorb, so they will wear out. If you are in an active area, you may want to be proactively replacing them before their little idiot lights come on to indicate that they have no capacity left. I.e. the rated capacity in Joules is for day 1.
All the best,
BG
I have an FS140 in my main panel which contains all of my backed up loads. I wonder if a better place for it would be in my energy gateway internal panel since that's closer to my service? Only issue is I don't have the accessory for the internal breakers and I have no idea if Tesla would sell me one.
@BrettS - do you also have a coax surge filter for cable?
As I said above, I don’t have CATV service, so I didn’t have to worry about picture quality, but I do use cable for my internet connection. I ran a couple of speed tests before and after I installed the surge suppressor and found no change in connection speed.
Interesting. I read most of the paper but didn't see if whole house protection will help beyond the grounding of incoming DC current but shouldn't an ordinary whole house protector also stop any over current and voltage? What is not clear is if that EMP may also be induced beyond the main panel as a device is set off to cause this EMP. Laptops and many other devices may be fried from that EMP.New blog posting from a former employer on EMPs:
Electromagnetic Pulse: The Dangerous but Overlooked Threat