They are made here where I live in Chicago. I talked to a few people at Tripp here after a few of their units took the beating of a major strike, the tripps literaly smoked, and what they were used on survived. Where I didnt have them I fried. I can see several points why it would not be recommended by them in writing, but by their design of the units I use, and that being each socket further away from the 120v wall plug having an additional Mov, it just makes sense it works. In reality daisy chaining may do nothing as I believe their better units do all that can be expected of them. Gee I hate lightning, it can ruin a nice day.
There is surge current on the shield from the cable entry ground block to the 1st plug-in suppressor that is likely larger.
And surge current on the cable service shield to the ground block that is much larger.
I wouldn't say induce.
If you pull the shield to a different potential, the signal conductor could be nearer the far end potential. Plug-in suppressors limit the voltage from signal conductor to the ground at the suppressor, just like all other wires. It is one reason to use a plug-in suppressor.
The same problem is likely at the 1st suppressor.
And the same problem is likely at the cable entry ground block. It is a problem that w ignores because it does not fit in with his religious views. w says the only cable protection you need is the entry ground block.
Haven't heard of any cable company technology.
With cable shields connected to earth at each house (and earth potential different) I don't know why there isn't a major ground loop problem (not surge related). Even worse, the neutral is connected to the cable shield at every house. I would think the hum level would be way above the signal level. Maybe a high pass filter is very effective.
Anyone know why ground loops aren't a problem?
TV is 8000 volts damaged because a surge current was permitted inside the building. That surge current had to find earth ground. With or without the power strip, it will find earth ground destructively through some appliance.
We install and earth on 'whole house' protector so that no surge current enters the building. One properly earthed (ie less than 10 foot) 'whole house' protector means the surge finds and is harmlessly dissipated in earth. Does not enter the building. Does not get earthed by the power strip protector 8000 volts through any appliance.
Why do telcos all over the world not use that power strip protector? They need protectors that make that short connection to earth =96 that actually provide protection. They need nothing damaged. Apparently trader considers appliance damage acceptable.
Same solution is available for all homes. One 'whole house' protector sells in Lowes for less than $50. That means one protector for maybe 100 items. But you would have them spend $5000 on power strips for everything including the furnace, smoke detectors, and bathroom GFCIs? Which scam are you promoting? An earthed surge does not overwhelm protection that already exists inside every appliance.
TV2 is damaged because it wasn't protected, as anyone but w can figure out.
Service panel suppressors are a good idea. But from the NIST guide: "Q - Will a surge protector installed at the service entrance be sufficient for the whole house? A - There are two answers to than question: Yes for one-link appliances [electronic equipment], No for two-link appliances [equipment connected to power AND phone or cable or....]. Since most homes today have some kind of two-link appliances, the prudent answer to the question would be NO - but that does not mean that a surge protector installed at the service entrance is useless."
Service panel suppressors do not prevent high voltages from developing between power and signal wires. The NIST guide, citing insurance information, suggests most equipment damage is from high voltage between power and signal wires.
Ho-hum - the lie repeated.
And in fact a service panel suppressor would provide *NO* protection from 8000V in the IEEE example. The 8000V comes from the cable service. w has never explained how a power service suppressor would fix 10,000V coming in on the cable service.
In fact, for the problem in the IEEE example the IEEE says "the only effective way of protecting the equipment is to use a multiport [plug-in] protector."
As trader has said several times, telcos may use similar protection with MOVs at the equipment.
Is I have said numerous times it is stupid to suggest a telco switch would use a plug-in suppressor. A telco switch is high amp, is hard wired, and would have to have thousands of signal wires going through it.
Of course still never seen - anyone that agrees with w that plug-in suppressors are effective. Because no one agrees with w.
Of course never answered - simple questions:
- Why do the only 2 examples of protection in the IEEE guide use plug-in suppressors?
- Why does the NIST guide says plug-in suppressors are "the easiest solution"?
- Why does the NIST guide say "One effective solution is to have the consumer install" a multiport plug-in suppressor?
- How would a service panel suppressor provide any protection in the IEEE example, pdf page 42?
- Why does the IEEE guide say for distant service points "the only effective way of protecting the equipment is to use a multiport [plug-in] protector"?
- Why did Martzloff say in his paper "One solution. illustrated in this paper, is the insertion of a properly designed [multiport plug-in surge suppressor]"?
- Why do your "responsible manufacturers" make plug-in suppressors?
- Why does "responsible" manufacturer SquareD says "electronic equipment may need additional protection by installing plug-in [suppressors] at the point of use"?
- Where is a source that says protection is "inside every appliance"?
- How do you protect airplanes from direct lightning strikes? Do they drag an earthing chain?
And (with some overlap):
1 - Do appliances and electronics typically have some built-in surge protection, eg MOVs? Yes or no.
2 - If the answer to 1 is yes, which we all know to be the case, then how can that surge protection work without a direct earth ground?
3 - How can aircraft be protected from surges, caused by lightning or static in the air, since they have no direct earth ground?
For real science read the IEEE and NIST guides. Both say plug-in suppressors are effective.
Which is why all those incoming utilities must be properly earth - ie 'whole house' protectors. Did he forget to mention phone lines already have a 'whole house' protector install for free at every home? And that is point. Every incoming wire must be earthed. AC electric is the missing protection and the source of most all surge damage.
Numbers from the IEEE Standards. A properly earthed 'whole house' protector provides 99.5% protection. From that IEEE Standard:
Massive protection at $1 per protected appliance using a 'whole house' protector. For an additional 0.2% protection, bud recommends spending $5000 on obscenely profitable plug-in protectors. bud even forgets what his sources also say: Page 42 Figure 8. Without that 'whole house' protector, the 0.2% protecton can, instead, contribute to appliance damage.
Without a 'whole house' protector and upgraded earthing, a $25 or $150 power strip protector can even earth a surge 8000 volts destructively through adjacent appliances. Page 42 Figure 8. Why does bud avoid that fact? Profits at risk.
Where is this power strip spec that claims protection? Why does bud, whose income is promoting these devices - why does he still not provide those numeric specifications? Because no plug-in protector claims that protection.
"Protectors in series" assumes protectors will somehow stop and absorb what three miles of sky could not even stop. So many long half truths from bud combined with insults .... and he still cannot find even one numeric specification that actually claims protection.
A protector is only as effective as its earth ground. Either surge energy is absorbed harmlessly in earth OR it finds destructive paths to earth via appliances. "Protectors in series" will stop what three miles of sky could not? Nonsense. Even power strips connected three miles in series will stop what three miles of sky could not stop. A protector is only as effective as its connection to earth. No earth ground means no effective protection. Page 17 his NIST citation:
No earth ground means no effective protection - no matter how many scam protectors are connected in series.
Because of his religious blinders poor w can't figure out how plug-in suppressors work. As the IEEE guide explains for anyone that can think, it is by clamping.
w's religious mantras protect him from conflicting thoughts (aka reality).
w just repeats the same drivel, as if repetition makes it true.
Still never seen - anyone that agrees with w that plug-in suppressors are effective. (Because no one agrees with w.)
Still never answered - simple questions:
- Why do the only 2 examples of protection in the IEEE guide use plug-in suppressors?
- Why does the NIST guide says plug-in suppressors are "the easiest solution"?
- Why does the NIST guide say "One effective solution is to have the consumer install" a multiport plug-in suppressor?
- How would a service panel suppressor provide any protection in the IEEE example, pdf page 42?
- Why does the IEEE guide say for distant service points "the only effective way of protecting the equipment is to use a multiport [plug-in] protector"?
- Why did Martzloff say in his paper "One solution. illustrated in this paper, is the insertion of a properly designed [multiport plug-in surge suppressor]"?
- Why do your "responsible manufacturers" make plug-in suppressors?
- Why does "responsible" manufacturer SquareD says "electronic equipment may need additional protection by installing plug-in [suppressors] at the point of use"?
- Where is a source that says protection is "inside every appliance"?
- How do you protect airplanes from direct lightning strikes? Do they drag an earthing chain?
And (with some overlap):
1 - Do appliances and electronics typically have some built-in surge protection, eg MOVs? Yes or no.
2 - If the answer to 1 is yes, which we all know to be the case, then how can that surge protection work without a direct earth ground?
3 - How can aircraft be protected from surges, caused by lightning or static in the air, since they have no direct earth ground?
For real science read the IEEE and NIST guides. Both say plug-in suppressors are effective.
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