ESD on outside CAT5

Makes no difference whether wires are buried or overhead. Phone lines already have a 'whole house' protector installed for free. That is not the traditional source of destructive surges (no matter how many times the uneducated Michael posts insults everywhere to mask his insecurities).

Protection means every wire in every incoming cable is earthed directly or via a 'whole house' protector. Once energy is inside a building, then nothing stops that destructive hunt for earth via appliances. Nothing. This is discussed extensively in ham radio groups.

Once energy is inside, it will hunt for earth. It will select appliances to damage. A most common source of surges that destroy modems is AC electric. A best path to earth is through than modem (most often via an off-hook relay), and to earth via the phone wire and 'whole house' protector.

Once energy is inside, then it will search for earth. If any wire enters a building without proper earthing, then nothing but protection already inside appliances (including a modem) will stop that hunt. Phone wires are rarely the incoming electrical path. And are a common outgoing path to earth once that energy has been permitted inside the building. Therefore every incoming wire (even underground) must connect to single point ground before entering.

Most likely reason for repeat modem damage is AC electric wires were not earthed at the service entrance.

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"John - KD5YI = another radio ham jerk"

Oink, oink......

.... Phil

Since you oinked, does that make you the pig?

You gotta get in to get out...

I doubt that ANYONE will make the connection.

No, you gotta get in to get off...

I doubt you will get the connection.

We aren't talking about phone lines, but that won't stop you from your usual posting garbage, multiple times.

By a bunch of appliance operators who buy chinese handhelds and pretend to be experts.

You should try that some time.

You're repeating yourself.

Can't afford a real NNTP server? Or have all the reputable ones banned you?

Easy to criticize someone else when you have nothing better to offer, or even a reason why it's wrong, isn't it?

I'd rather have an explanation from the telephone guy than nothing at all, considering I can think for myself and decide if it's plausible.

"Charlie E."

Apparently neither you or Johnny boy can do that.

I would place far more credence in any engineer here (almost any) to know about electrostatic charges and how they propagate and how they discharge long before I would put ANY in ANY "phone guy".

And his wise crack about a cable guy was lame too, because cable folks DO know more about it that telephone jockeys do as well. Far more.

Explanation? You have to ask the right question, not one that poses fifty more.

IF you had enough brains to ask all fifty, you'd be alright.

Since we know that is not true because you asked the one you did...

So, which is better, brainiac? Lie flat on the ground or make a fetal ball out of yourself?

Which candidate gets hit by the lightning stroke?

Answer: The lie flat guy does. fingers, toes, and appendages have a higher attraction gradient than the ball does, even if the ball has a higher altitude profile.

AGAIN, you retarded f*ck! I made no such calculation. That does NOT mean that I do not know how.

You clueless little bitch, get off it, fucktard!

You get off first, bitch.

That statement is a lie. Here is what you wrote in the thread "Faster Than Light or is it":

"No, it cannot. It still has to get to point B.

Pointing it at Jupiter does NOT place the 'spot' there immediately.

It takes it 22 seconds to get there. Period.

Try again, flawed logic boy."

And

" Not only that, but the "spot" would take like 22 seconds to get to Jupiter! That is regardless of how fast the dope on Earth (Grise) moved it from A to B. It doesn't get to B for quite some time, even though the "aim" of it has."

Both under the nym snipped-for-privacy@overthelazydog.org

So, you were wrong twice. Get out that lie, shit-for-brains.

"John - KD5YI" >

Look who's calling who looney.

Now that the least informed have burned themselves out with insults and cheapshots, let's return to your problem and effective solutions.

Tree roots do not cause the problem. Trees are, electrically, lightning rods. Lightning is maybe a connection from that cloud to earthborne charges maybe five miles away. The electrically shortest path might be three miles down to that tree. And then four miles through earth to those charges.

A horse maybe 30 feet from the tree is also in that path. A shortest path is upgoing the horses hind legs. And back to earth via its fore legs. What killed a horse is also why a struck tree can bring a surge into your underground phone line.

As noted before - and what every responsible poster here would have been discussing - is the 'whole house' protector installed by the telco where their wires meet yours. Protection is compromised if that protector is not connected short (ie 'less than 10 feet') to single point earth ground. To earthing that is also connected short to the AC electric, cable TV wire, and satellite dish.

How to protect that horse? Bury a copper wire around the house. Then the shortest path is to remain in earth - travel around the horse. The concept is single point ground. You do same either with multiple ten foot ground rods at the service entrance. Or by encircling the building with a buried loop.

Protection is always and completely about an earth ground that must both meet and exceed post 1990 National Electrical code.

The telco guy is somewhat saying the same thing. But if he did not discuss the 'whole house' protector installed by the telco for free, then he did not grasp the concept.

Again, the most common source of surges through telephone appliances is AC electric. Because AC electric wires enter without earthing. And especially if AC electric is not short (ie 'less than 10 feet') to the same earth ground used by the telco protector.

Some additional information. One utility demonstrates a kludge to fix a defective utility installation. How to kludge a single point ground:

You have damage because earthing for your building is defective. Protection means every single wire inside every incoming cable (overhead or underground) must make that short (low impedance) connection to single point earth ground. Protection is always a discussion about where hundreds of thousands of joules dissipate.

And finally, a curious observation from one TX amateur. White pines tend to act like lightning rods. His observation was that pines without twisting capillaries (that grew straighter) tend to be struck more often - are better electrical connectors to earth. Curious. Not a fact. Just curious.

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