Re: Soon to arrive my HDTV

On Mar 29, 8:45=A0pm, w_tom <w_t...@[EMAIL PROTECTED]
> wrote:
> On Mar 29, 11:55=A0am, bud-- <remove.budn...@[EMAIL PROTECTED]
> wrote:
>
> > Everyone is for earthing. =A0The IEEE guide explains plug-in
suppressors=

> > work primarily by clamping, not earthing. The guide explains earthing
> > occurs elsewhere (beginning pdf page 40). The question is not
earthing.
> > The only question is whether plug-in suppressors are effective.
>
> =A0 Every responsible source says that surge energy must be clamped
> (shunted, diverted, connected) into earth. =A0Earth is where surge
> energy gets dissipated. =A0A protector that has no earthing must somehow
> absorb or block a surge that even three miles of sky could not stop.
> So me the protector that stops or absorbs what three miles of sky
> could not block.
>
> =A0 Bud misrepresents what professionals (even the IEEE) state. =A0 From
> Bud's NIST citation says:

You keep insisting that lightning is the ONLY source of surges. It
ISN'T.
>
> > What these protective devices do is neither
> > suppress nor arrest a surge, but simply divert
> > it to ground, where it can do no harm. =A0...
> > A very im****tant point to keep in mind is that your
> > surge protector will work by diverting the surges to
> > ground. =A0The best surge protection in the world can
> > be useless if grounding is not done properly.
>
> =A0 Where is this ground that a plug-in protector diverts to? =A0It does
> not exist. =A0Therefore the plug-in protector must somehow 'suppress' or
> 'arrest' that surge. Also called 'clamping to nothing'. =A0NIST says the
> effective protector does not 'clamp to nothing'. =A0NIST says it clamps
> (diverts) to earth ground. =A0 NIST also says the plug-in protector is
> useless when grouding is not done properly. =A0Essential is a low
> impedance ground connection - which is why effective 'whole house'
> protectors have that 'less than 10 foot' earthing connection.
>
> =A0 Bud says a plug-in protector 'clamps to nothing'. =A0Surge energy
> magically dissappears? =A0Of course not. =A0Page 42 Figure 8. =A0That
surg=
e
> energy finds a destructive path to earth; =A08000 volts through a TV.
=A0A=

> destructive surge always 'clamps to earth'. =A0Either without damage via
> the 'whole house' protector or Ben Franklin's lightning rod, =A0OR
> destructively via household appliances or the building.
>
> =A0 Another industry professional noted demonstrates surge protection
> must be installed in "The Need for Coordinated Protection". =A0Figure 2
> in this professional application note demonstrates that even
> underground wires must be earthed to single point ground before
> entering a building:
> =A0http://www.erico.com/public/library/fep/technotes/tncr002.pdf
>
> =A0 QST Magazine (the official publication of the ARRL; for ham radio
> operators) in July 2002 also describes what effective protectors do:
> =A0 =A0 =A0http://www.arrl.org/tis/info/pdf/0207048.pdf
>
> > The purpose of the ground connection is to take the energy
> > arriving on the antenna feed line cables and control lines
> > (and to a lesser extent on the power and telephone lines)
> > and give it a path back to the earth, our energy sink. The
> > impedance of the ground connection should be low so the
> > energy prefers this path and is dispersed harmlessly. To
> > achieve a low impedance the ground connection needs to
> > be short (distance), straight, and wide.
> > ...
> > The goal is to make the ground path leading away from the
> > SPGP more desirable than any other path.
>
> =A0 A properly earthed 'whole house' protector accomplishes that.
> Somehow a plug-in protector 'clamps to nothing'; makes =A0energy
> dissappear? =A0Only Bud makes that claim.

No sir, you're spouting BS. It's dissipated as _heat_. You've never
seen an overloaded MOV explode from too much energy? This is NOT to
say you _may_ get a large neutral to ground spike but you _can_
dissipate line to neutral and reduce the chance of failure. Remember,
the bulk of the surges come from man-made problems like inductive
kicks from motors powering up or down. Mother nature doesn't hit all
that often at home and when she does, we'll all wish we hade your
super ground system but I have to wonder how much induced voltage is
generated from the intense current in the lightning itself. If it's
magnetically generated inside the units, all the grounds in the world
won't do diddly.

> A protector is only as effective as its earth ground. =A0No earth
> ground means no effective protection. =A0Therefore facilities that must
> have no surge damage use only properly earthed protectors, even better
> earth grounds, and no plug-in protectors. =A0These facilities install
> only systems that actually can provide surge protection. =A0They don't
> use plug-in protectors.

Carry on with your religion.

GG