Re: Printing fails after surge

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"w_tom" <w_tom1@xxxxxxx> wrote in message
news:1137465730.536328.192070@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> A spike went through the UPS? Of course. Computer connected
> directly to AC mains via that UPS. Does a UPS relay stop lightning?
> Of course not. UPS does not even claim protection from that type of
> transient. UPS also does not stop, block, or absorb what three miles
> of sky could not. Effective electronics protection never stops
> lightning. Effective protection does what Franklin demonstrated in
> 1752. Effective protection is about earthing.
>
> Your telco has a $multi-mllion computer connected to overhead wires
> everywhere in town. Do they shut down phone service during
> thunderstorms? Of course not. Even the telco does not stop, block, or
> absorb surges. Effective protectors do not block or absorb. The telco
> uses single point earthing to give lightning what it wants - as
> Franklin demonstrated more than 200 years ago. Effective protection
> means lightning strikes wires connected directly to electronics -
> without damage.
>
> To claim that surges are not predictable is absurd. We do it
> regularly in most every town. Notice 40 and 25 direct strikes annually
> to WTC and Empire State Building without TV and FM radio electronics
> damage. When damage does occur, then a human uses that damage to
> correct a defective protection system.
>
> Look inside plug-in UPSes. Is that silly one inch part going to stop
> or absorb what three miles of sky could not. Those who recommend
> plug-in UPSes are making that claim. Effective protectors neither
> block nor absorb such transients. That UPS does claim surge protection.
> But then it forgets to mention one point. It does not claim to
> protect from surges that typically cause the damage. UPS hopes you
> will assume that protection from one type of surge is protection from
> all types of surges..
>
> Why are modems so easily damaged? Lightning has found a path to
> earth via that modem because a human has failed to earth lightning
> where transients enter a building. It is routine to suffer direct
> strikes and suffer no damage. But the most critical and essential
> component of that protection system is earth ground. What is missing
> at a building's service entrance? Single point earth ground and short
> connections to that earthing. What makes that 'less than 10 foot'
> connection? A 'whole house' protector.
>
> Do surges transverse a power supply? Why? That power supply's
> isolation is rated at thousands of volts. Meanwhile a wire completely
> bypasses that supply. Surges do not transverse a properly constructed
> supply simply because that bypass wire is an easier and therefore
> common transient path. Again, surge paths are quite predictable which
> is why protection
>
> How are modems typically damaged? Lightning strikes overhead wires
> down the street. To seek what? Earth ground. Incoming on AC mains.
> Into a building that does not have properly earthed 'whole house'
> protection. Into computer, bypass power supply, through motherboard,
> modem, and out to earth ground via phone line. Why does it find earth
> ground on a phone line? Because the telco installs an earthed 'whole
> house' protector on your incoming phone line. Modem becomes a
> connection to earth ground if a human fails to install a 'whole house'
> protector on AC mains at the service entrance. Electronics damage from
> lightning is directly traceable to human failure - as was even
> understood 70 years ago. There is no 'industrial strength' protector.
> Proetction is not a protector. Protection is earth ground. A
> protector is nothing more than a connection to protection. That
> plug-in UPS does not even claim to provide such protection.. A
> protector is only as effecive as its earth ground.
>


Amen.


.

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