Re: NEWEGG Extended Warranty on SAMSUNG

westom1@xxxxxxxxx wrote:
On Dec 22, 5:05 am, gecko <al...@xxxxxxxxxxx> wrote:
I already have a whole-housesurgeprotectorinstalled. I have
already been asurgetarget - lost two TVs and burglar alarm some time
ago,

Excellent information on surges and surge protection is in an IEEE guide at:
<http://www.mikeholt.com/files/PDF/LightningGuide_FINALpublishedversion_May051.pdf>
And one from the US-NIST at:
http://www.nist.gov/public_affairs/practiceguides/surgesfnl.pdf

No protector provides protection. The effective protector diverts
to where surge energy must be dissipated harmlessly. The protector
only connects to protection. Protection is earth ground. Earth
ground is where surge energy gets dissipated

Ho-hum
w_ has a religious belief (immune from challenge) that surge protection must directly use earthing. Thus in his view plug-in suppressors (which are not well earthed) can not possibly work. The IEEE guide explains plug-in suppressors work by CLAMPING (limiting) the voltage on all wires (signal and power) to the common ground at the suppressor. The voltage between wires going to the protected equipment is safe for the protected equipment. Plug-in suppressors do not work primarily by earthing (or stopping or absorbing). The guide explains earthing occurs elsewhere. (Read the guide starting pdf page 40).

When using a plug-in suppressor all interconnected equipment needs to be connected to the same plug-in suppressor, or interconnecting wires need to go through the suppressor. External connections, like phone, also need to go through the suppressor. Connecting all wiring through the suppressor prevents damaging voltages between power and signal wires. These multiport suppressors are described in both guides.

The NIST guide, using US insurance information, suggests that most equipment damage is from high voltage between power and phone/cable wires.

A 'whole house' protector is effective due to its short (ie 'less
than 10 foot) connection to earth.

A power service suppressor is a real good idea.
What does the NIST guide say?
"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."

A power service suppressor does not limit the voltage between power and signal wires.

No protector does or even claims to stop or block surges.

Correct, because that is not how they work.

And yet
that is what those $80 'good quality' protectors must do. Nonsense.

Correct - it is nonsense that is what "protectors must do".
Because of his religious belief in earthing, poor w can't figure out how plug-in suppressors work.

In your case,
telephone, cable, and satellite dish wires must enter the building to
also make that 'less than 10 foot' connection to the same earth
ground. If not, then you have no effective protection.

You want to minimize the voltage between power and phone/cable wires. That requires a short ground wire from phone/cable entry protectors to the earthing wire at the power service. With a strong surge, the "ground" at the house can rise thousands of volts above "absolute" ground. The power and phone and cable grounds need to rise together. The author of the NIST guide has written "the impedance of the grounding system to 'true earth' is far less important than the integrity of the bonding of the various parts of the grounding system." An example of a ground wire that is too long is in the IEEE guide starting pdf page 40.

In many houses the entry point for cable, phone is too far from the power service. In that case the IEEE guide says for equipment connected to both power and signal wires "the only effective way of protecting the equipment is to use a multiport [plug-in] protector."

Cable needs no protector. Cable and satellite
dish should be connected directly to earth ground using a ground block
and that short 12 AWG wire.

Needs no protector?
The IEEE guide says "there is no requirement to limit the voltage developed between the core and the sheath. .... The only voltage limit is the breakdown of the F connectors, typically ~2–4 kV." And "there is obviously the possibility of damage to TV tuners and cable modems from the very high voltages that can be developed, especially from nearby lightning." (A plug-in suppressor will limit the voltage from cable core to shield.)

Do those protectors
stop or absorb what three miles of sky could not? That is what others
have posted.

Only w says that.

A protector is only as effective as its earth ground No earth ground means a protector provides
no effective protection

The required statements of religious belief in earthing.
Obviously planes are crashing often when hit by lightning - or do they drag an earthing chain?

Everyone is for earthing. The question is whether plug-in suppressors work. Both the IEEE and NIST guides say plug-in suppressors are effective. The IEEE guide has 2 examples of surge protection. Both use plug-in suppressors. One is for a TV and related equipment.

Never seen - a link to a source that agrees with w that plug-in suppressors are NOT effective.

--
bud--
.

Relevant Pages

  • Re: Multiple power strips daisy-chained, code?
    ... Or a more technical guide from the IEEE: ... w has a religious belief that surge protection must directly use earthing. ... The IEEE guide explains plug-in suppressors work by CLAMPING the voltage on all wires to the common ground at the suppressor. ...
    (sci.electronics.design)
  • Re: Lightning Strike and surge
    ... breaker box to what the electrician called "positive" lightning. ... the wires acting as a long wire or loop antenna. ... Of course w__ has still not figured out how plug-in suppressors work. ... - Why do the only 2 examples of protection in the IEEE guide use plug-in ...
    (alt.comp.hardware.pc-homebuilt)
  • Re: Lightning Strike and surge
    ... I wouldn't bet that an electrician could tell the difference. ... An example of a loop is a cable wire and power wires, with the wires connected at the ground bond, and the open end of the loop at a TV. ... Protection is for the power and phone and cable ground references to rise together. ... Plug-in suppressors work by clamping the voltage on all wires to the common ground at the suppressor. ...
    (alt.comp.hardware.pc-homebuilt)
  • Re: Long cat5 run question
    ... Almost all service panel suppressors and plug-in suppressors use MOVs - metal oxide varistors - for the power wires. ... I assume we are not talking about a direct lightning strike to a building which requires lightning rods for protection. ... Lightning then is almost always a surge coming in on power or signal wires. ...
    (alt.internet.wireless)
  • Re: House grounding
    ... The IEEE guide provides an example starting pdf page 40. ... only as effective as its earthing. ... The IEEE guide explains plug-in suppressors work by CLAMPING the voltage on all wires to the common ground at the suppressor. ... Point of entry protection can provide good protection, but it can not provide protection from internal sources. ...
    (alt.home.repair)