Home |
Search |
Today's Posts |
![]() |
|
Home Repair (alt.home.repair) For all homeowners and DIYers with many experienced tradesmen. Solve your toughest home fix-it problems. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
|
#1
![]() |
|||
|
|||
![]()
w_tom wrote:
Appliances already contains a dike. A $50 microwave contains a dike but a $100 protector doesn't? Internal protection that can be overwhelmed if the primary and secondary protection systems are not installed. What is the most critical component of primary and secondary protection systems? Earth ground. But Zerosurge avoids that discussion. They discussed it for me. The protection built into appliances is sufficient when part of a protection 'system'. Internal protection alone is insufficient without the primary and secondary protection 'systems'. Mine was insufficient with primary and secondary protection. What is this transient picked up by a building's grounding system especially during thunderstorms? If that transient was so destructive, then nearby lightning would destroy electronics literally tuned to the destructive frequencies of lightning - AM radios. How many AM radios inside cars are damaged after every thunderstorm. What frequencies are most destructive? A car radio doesn't pick up a surge from a building's grounding system because the car isn't grounded to it (or to earth). Why is that damage number virtualy zero? Because those mythical surges created by nearby lightning strikes are promoted only on myth - without numbers. Did you ever read where lightning kills a whole herd of cows standing under a tree? That's the ground surge. That's why in a thunderstorm you should not stand near a tall tree and not lie down but crouch with your feet together. Choreboy demonstrates another myth: .. the power company's grounding rods will pick up the surge and bring it right to your house. The Telco repairman told me their lightning damage usually comes from surges brought to homes by the power company's ground. Last week a retired lineman verified that the ground wire will bring in lightning surges from many miles around. An example of 'lying by telling half truths'. A problem eliminated when using the single point earth ground. To the contrary, the power company recommends a three-point ground. The lineman had to install one at his house because lightning surges kept destroying his well pump. Again Choreboy muddies the water: Earth ground is for human protection, ... Yes. And it is also required for transistor safety - as was posted both previously and repeatedly. My car has no earth ground. It has sat through many thunderstorms wih no damage to its electronics. The lack of an earth ground can mean a static shock for humans. Instead Choreboy states: Earthing once cost me a computer. Then he contradicts himself: Zero Surge says a protector won't protect your equipment if the earth grounds aren't bonded. Which is it? Earthing causes damage or earthing is necessary? If it hadn't been for those two ground rods (installed by two utilities) my computer would have been fine. If you are grounded, you need proper bonding. Choreboy does not even know what inside each appliance was damaged. I'm glad you asked. I went through my TV and my stereo to see what parts had been zapped. The list was so long that I threw the appliances away. Choreboy had damage due to defects in his earthing system which he eventually admits to. The telephone ground had nothing to do with my stereo or TV. The only thing that killed them was voltage between hot and neutral, which got by my whole-house protector. |
#2
![]() |
|||
|
|||
![]()
Again look at what goes inside a grossly overpriced plug-in
protector. To repeat it again: Take a $3 (retail) power strip. Add some $0.10 components. Sell it as a surge protector under the Monster Cable brand name for upwards of $100. That's right. Ineffective protectors are undersized to protect a profit margin; not the transistors. Many spend massive money on plug-in protectors so grossly undersized as to fail on the first transient. Failure on a first transient means ineffective protection. And yet some consumers actually worship that at $100, it must be good. Monster Cable also sells cheap wire with connectors color gold. People also foolishly spend $50 and $100 for speaker wire only because Monster colored it gold. Then myth purveyors declare gold Monster Cable will not corrode. Lying by telling half truths. Amazing how people use price as if it was science proof. The $50 microwave has significant protection. Any $0.10 components that would be effective inside that $100 protector are already inside the $50 microwave. The microwave's internal protection could be overwhelmed if a 'whole house' protector - the secondary protection system - is not installed. Properly installed. The microwave remains at same or higher risk if plugged into a $100 power strip protector. Meanwhile, Zerosurge told you nothing useful about grounds. Their 'executive summary' told you enough so that you think you know about earthing. But Zerosurge did not even discuss primary and secondary protection. They said their product doesn't contaminate ground by dumping transients to ground. So what does that mean? Nothing. Total nonsense. IOW they told gobbledygook and you declared that as science fact? They know how to lie to the right people. Notice that Zerosurge did not even put one number with those 'application notes'. No numbers means what? Junk science. They wrote junk science. Zerosurge explained all about earthing? You also believed a lying president when he hyped myths about weapons of mass destruction. WMDs also demonstrated how lies can be spin into junk science facts when the want to believe rather than first learn. You had a 'whole house' protector. Did you have protection? What was and how was earth ground installed? You now admit that the building has two separate grounds. Therefore not effective protection. Furthermore, you don't discuss how that 'whole house' protector is earthed. Worse still, you don't even try to learn about earthing. Instead that simple paragraph from Zerosurge is everything one need know about earthing? Somehow you don't need know anything about earthing. The ground rods caused your damage. You post as if surge protectors stop, block, or absorb surges. A surge enter on one wire, damage the stereo, then stops? Even second grade science students are taught that electricity does not work that way. You had damage to a grossly undersized plug-in protector. That says you have no effective secondary protection and may not have primary protection either. But then you actually tried to claim that earthing does not provide the protection. As long as you remain in denial, then of course you have no effective protection. Such damage is directly traceable to human failure. As long as you know because Zerosurge told you so much, then transient damage is acceptable. You had a 'whole house' protector. But (as was posted repeatedly and not answered): was it even earthed? The protector is not protection. Earthing is the protection. Earthing - the thing repeatedly ignored. Earthing for protection was well proven even before WWII. You think some plug-in protector will stop what miles of sky could not? What kind of nonsense is that? Well you had electronics damage. IOW you had damage and still deny what is effective protection. A problem traceable when a human promotes sales brochure science. Cows under a tree are the perfect example of multiple earth grounds. Your building that has multiple earth grounds has same problem. Four legged animals are more easily killed by lightning that strikes a tree because the cow now becomes part of the electrical circuit. Cow does not make a single point ground. Cow then becomes the electrical path of a circuit that includes the struck tree. Did EM field from a nearby strike kill those cows? Yes when myth is taken as science fact. Those cows are cited only because some actually believe (to the embarrassment of the nation's education system) that a nearby lightning strike induced death in cows. In reality the nearby lightning strike passed right through those cows. Just another example of how multiple earth grounds also cause appliance damage. Same concept demonstrated in a picture from the NIST. Fax machine also damaged because the building (like the cow) had multiple and separate connections to ground. Yes a ground wire may carry transients from many miles around. So will buried pipe lines. So will utility wires that terminate in front of your house. All the more reason why you must have a single point earth ground. For human life protection, an earth ground is necessary. No way around that. So that lightning passing through the ground does not enter the house, pass through household appliances, then leave via another ground, instead, you must have a single point earth ground. But again, same reason why a cow under the tree is harmed by lighting was demonstrated by that NIST picture at: http://www.epri-peac.com/tutorials/sol01tut.html Where did Zerosurge discuss any of this. Obviously they did not. Too complex? Not helpful for selling a product? You tell me. But Zerosurge also demonstrates how ineffective and undersized your plug-in protector was. Remember that plug-in protector you said protected a computer. Zerosurge demonstrates that even MOVs all can be removed, and the protector light says the protector is fine: http://www.zerosurge.com/HTML/movs.html That protector did not protect the computer. The computer protected itself from a tiny transient. A transient too small to harm the computer could easily destroy the grossly undersized protector. Even Zerosurge pictures demonstrated ineffective plug-in protectors. Either don't trust Zerosurge or maybe that APC protector is not what you think it was. So which is lying? Zerosurge or APC? You cannot have it both ways. Either the APC is not effective, or what you promoted from Zerosurge is not really true. Those two ground rods for AC electric are absolutely essential to surge protection AND even so that a house does not explode. The utility does not install earthing rods. That was your responsibility as even required by the National Electrical Code. Those earth ground rod did not cause transistor damage as long as they are part of the single point earth ground. But this means you must learn about earth ground AND stop worshiping myths from those plug-in protector manufacturers. Somehow you just know those ground rod caused damage? Did you also believe a lying president when he invented WMDs? One must believe blindly to conclude that ground rods caused damage. Absolutely no fact exist to make that wild assumption. Furthermore, those myths have no numbers. But somehow you just know anyway - just like those who believed a lying president when the numbers were saying something completely different. Somehow you know those ground rods cause your damage? Fine. First define the complete electrical circuit. To conclude ground rods caused the damage, you cannot just say "a lineman said this". That is hearsay. Define the electric circuit created by those ground rods. You cannot. Again, you have made assumptions rather than first learn facts. Problems with your reasoning demonstrated FOUR different ways. Assumed: a voltage between AC hot and neutral caused that stereo damage. If true, the list of damage components would be quite short and only where the power cord connects. Stereo would have been easily repaired. But to have a long list of damage, then a destructive electrical circuit had to pass across the stereo. Destructive transients take the long path when seeking earth ground. Typically destructive transients enter on 'either or both' hot and neutral wire. Transients leave on some other conductive path. If a transient entered on hot and left on neutral, then the list of damaged components would be quite short - and easily repaired. You had extensive damage which mean it was a transient those plug-in protectors don't even claim to protect from. 'Too many damaged' components because transient entered on AC mains and exited elsewhere. Let's assume a transient entered on hot and left on neutral. The typically destructive transients don't enter that way. But let's assume a transient comes down the hot wire seeking what? Earth ground. What does a plug-in protector do for this type of transient? Shunts the transient to neutral wire. Now the transient is seeking earth ground, destructively through appliance, from both hot and neutral wire. The adjacent plug-in protector has provided more destructive paths to earth via the adjacent appliance. Welcome to the world of ineffective plug-in protectors - that don't even claim to protect from this - the typically destructive transient. Plug-in protectors can even provide destructive paths through an adjacent appliance. Third example. Again, let's assume the transient entered via hot wire and left via neutral wire. Then those earth ground rods (that you blamed) were not involved in stereo damage. Your assumptions are wild speculation AND they contradict each other. Which is it? Damage enters on hot wire and left on neutral wire? Or the utility and code required earth ground rods put a surge into your stereo - via a wire those ground rods don't even connect to. Those earthing rods did not contribute to any damage if they had been part of single point earthing. But then you don't even demonstrate a circuit path for your claims. And fourth is the little problem of where the electricity went to after it left stereo on neutral wire. Where on the neutral wire is the rest of a complete electrical circuit? Just another problem with "the transient entered on hot wire and left on neutral wire" theory. It has no science fact to support what is speculation hyped into fact - just like weapons of mass destruction. Where did current leaving the damage stereo then go via neutral wire? A building wire picks up radio frequencies because it is grounded? Do you invent these things or do you have a source? A car radio does not receive those frequencies because it is not grounded? So the car radio does not play music and review news updates - because it is not grounded. Which is it? Either they both receive those frequencies or neither does. How does household wiring create thousands of volts from the same radio frequency source that does not even create a destructive 10 volts inside the car radio? You listen to too much speculation hyped into "this must be true" fact. Exactly how a president could lie about WMDs. Most damning, where are your numbers? They don't exist, do they. That plug-in protector did nothing but self destruct so that you would recommend it to the world. Its called a scam. Somehow you have twisted a grossly undersized and overprice protector into effective protection. You had a 'whole house' protector. Therefore you assumed it was protection. Again, and again, you repeatedly ignore - outrightly avoid, learning about THE most essential component in a protection system: earth ground. Your own speculations contradict themselves. Why? You are promoting myths. And you deny what is effective protection. Choreboy wrote: w_tom wrote: Appliances already contains a dike. A $50 microwave contains a dike but a $100 protector doesn't? What is the most critical component of primary and secondary protection systems? Earth ground. But Zerosurge avoids that discussion. They discussed it for me. The protection built into appliances is sufficient when part of a protection 'system'. Internal protection alone is insufficient without the primary and secondary protection 'systems'. Mine was insufficient with primary and secondary protection. ... What frequencies are most destructive? A car radio doesn't pick up a surge from a building's grounding system because the car isn't grounded to it (or to earth). ... Did you ever read where lightning kills a whole herd of cows standing under a tree? That's the ground surge. That's why in a thunderstorm you should not stand near a tall tree and not lie down but crouch with your feet together. ... The Telco repairman told me their lightning damage usually comes from surges brought to homes by the power company's ground. Last week a retired lineman verified that the ground wire will bring in lightning surges from many miles around. ... To the contrary, the power company recommends a three-point ground. The lineman had to install one at his house because lightning surges kept destroying his well pump. ... My car has no earth ground. It has sat through many thunderstorms wih no damage to its electronics. The lack of an earth ground can mean a static shock for humans. .. If it hadn't been for those two ground rods (installed by two utilities) my computer would have been fine. If you are grounded, you need proper bonding. ... I'm glad you asked. I went through my TV and my stereo to see what parts had been zapped. The list was so long that I threw the appliances away. ... The telephone ground had nothing to do with my stereo or TV. The only thing that killed them was voltage between hot and neutral, which got by my whole-house protector. |
#3
![]() |
|||
|
|||
![]()
w_tom wrote:
You had a 'whole house' protector. Did you have protection? What was and how was earth ground installed? You now admit that the building has two separate grounds. Therefore not effective protection. Furthermore, you don't discuss how that 'whole house' protector is earthed. Worse still, you don't even try to learn about earthing. Instead that simple paragraph from Zerosurge is everything one need know about earthing? Somehow you don't need know anything about earthing. The ground rods caused your damage. In troubleshooting the computer damage years ago I found the phone and power grounds unbonded. I bonded them because I'd known for 20 years that bonding was required. I thought the lack of bonding was rare until I talked to a telco man five years later. Still later, I read at the Zero Surge site that the lack of bonding is a common and serious problem. BTW, did you know no computer plugged into a Zero Surge protector has ever been damaged? You had damage to a grossly undersized plug-in protector. No damage to a protector. There was no plug-in protector for my TV and stereo. I had foolishly trusted my whole-house protector. That says you have no effective secondary protection and may not have primary protection either. Don't you think there would be a lot more damage in this neighborhood if the power company's lines weren't grounded? You had a 'whole house' protector. But (as was posted repeatedly and not answered): was it even earthed? I wonder why I didn't see your question before. It's not buried in the ground, but of course it's connected to the same neutral bar as the power company's ground wire, eight feet from my ground rod. Cows under a tree are the perfect example of multiple earth grounds. Your building that has multiple earth grounds has same problem. Four legged animals are more easily killed by lightning that strikes a tree because the cow now becomes part of the electrical circuit. Cow does not make a single point ground. Cow then becomes the electrical path of a circuit that includes the struck tree. Yes a ground wire may carry transients from many miles around. So will buried pipe lines. So will utility wires that terminate in front of your house. All the more reason why you must have a single point earth ground. Most buildings are like cows in that multiple grounds are inevitable: water supply, water drain, furnace, construction materials, power tool lying on the ground. Your single-point theory has led to thousands of deaths when people touched objects like faucets and phones during thunderstorms. A building needs bonding. Sometimes it needs multiple ground rods. Assumed: a voltage between AC hot and neutral caused that stereo damage. If true, the list of damage components would be quite short and only where the power cord connects. Stereo would have been easily repaired. But to have a long list of damage, then a destructive electrical circuit had to pass across the stereo. Destructive transients take the long path when seeking earth ground. Typically destructive transients enter on 'either or both' hot and neutral wire. Transients leave on some other conductive path. If a transient entered on hot and left on neutral, then the list of damaged components would be quite short - and easily repaired. You had extensive damage which mean it was a transient those plug-in protectors don't even claim to protect from. 'Too many damaged' components because transient entered on AC mains and exited elsewhere. Does electricity always choose the longest path to ground? Except the rabbit ears, the only conductors within several feet of the TV were the hot wire and the neutral. So now you're telling me the surge came in through the plug and exited through a lightning bolt? I was watching the TV. I saw no spark at all. Third example. Again, let's assume the transient entered via hot wire and left via neutral wire. Then those earth ground rods (that you blamed) were not involved in stereo damage. Your assumptions are wild speculation AND they contradict each other. Which is it? Damage enters on hot wire and left on neutral wire? Or the utility and code required earth ground rods put a surge into your stereo - via a wire those ground rods don't even connect to. Those earthing rods did not contribute to any damage if they had been part of single point earthing. But then you don't even demonstrate a circuit path for your claims. I'm the one who has been saying earthing had nothing to do with that incident. Unbonded grounds had zapped a computer and modem years earlier. And fourth is the little problem of where the electricity went to after it left stereo on neutral wire. Where on the neutral wire is the rest of a complete electrical circuit? Just another problem with "the transient entered on hot wire and left on neutral wire" theory. It has no science fact to support what is speculation hyped into fact - just like weapons of mass destruction. Where did current leaving the damage stereo then go via neutral wire? Back to ground through the breaker box. That's where current flows through all my neutral wires. Aren't your neutrals hooked up? |
#4
![]() |
|||
|
|||
![]()
Speculated only (without any numbers) that all wire is
perfectly conductive. An effective protector is earthed via a 'less than 10 foot' connection. A phrase that has been repeated how many times? Eight? Ten? Thirty? Distance is critical because wires are electronic components - especially when discussing destructive transients that occur within microseconds. Will that transient shunted by an adjacent 'plug-in' protector go to earth ground via the neutral wire? Lets assume a 50 foot connection to breaker box and earth ground. That means a 'so trivial' transient of 100 amps must transverse wire of less than 0.2 ohms resistance AND maybe 130 ohms impedance. 100 amps times 130 ohms is 13,000 volts. So the computer and adjacent protector are at something less than 13000 volts relative to earth. How can this be? Welcome to more electrical facts - especially earth ground - that plug-in protectors forget to mention. You tell me. Is that transient going to use a 13,000 volt neutral wire? Or will it find other destructive paths to earth? Other electrical conductors include the table, linoleum floor tile, some wall paints, that baseboard heater. Stereo is wired to speakers. Those speaker wire touch what? Numerous conductive electrical paths may exist. Neither that TV nor stereo was connected only to hot and neutral power wire. A common destructive path through both would be incoming on either or both AC wires, and then outgoing on any one of so many other destructive paths. If the transient only entered on AC hot and left on AC neutral, then internal protection inside both TV and stereo could have made that transient insignificant - no damage. But then Choreboy describes an electric circuit that entered on AC wire and exited somewhere else - as typically destructive transients would do. Lets assume, anyway, that entire 100 amp transient does seek earth ground via the neutral wire. That wire is bundled with other wires. That transient is inducing transients on all other wires. What is connected to those other wires? Stereo and TV. Just anther reason why the plug-in protector was not effective. The 'whole house' protector must make a 'less than 10 foot' connection to the same earth ground used by telephone, cable, and even satellite dish. You had a protector and suffered damage? Then a protector did not connect to a single point earth ground. Do we dispute the generations of professionals who have proven the critical need for single point ground? Lurkers can access a list of industry professional citations at: alt.comp.periphs.mainboard.asus on 30 Mar 2005 entitled "UPS unit needed for the P4C800E-Deluxe" http://makeashorterlink.com/?X61C23DCA Unfortunately Choreboy provides no technical basis for his assumptions. Multiple grounds are inevitable? Wrong. The entire earth beneath a building could be one big single point earth ground if we used what has long been available before transistors even existed - Ufer grounding. It means building new buildings as if the transistor existed. Other solutions are suggested by utilities in that above long list of industry professional citations. In the meantime, Choreboy somehow assumes a plug-in protector is earthed by a grossly undersized product that does not even claim to provide that protection. He admits to multiple earth grounds but denies they can cause damage even though NIST figures demonstrate otherwise. He believes single point earth ground can be dangerous. He provides no technical reasons why nor even cites a single responsible citation or number. He had damage. The transient found earth ground, destructively, via his stereo and TV because a human permitted a transient inside the house. There is no way around those facts demonstrated in a full day's reading from industry professional citations. The protection is only as effective as its earth ground. Choreboy wrote: In troubleshooting the computer damage years ago I found the phone and power grounds unbonded. I bonded them because I'd known for 20 years that bonding was required. I thought the lack of bonding was rare until I talked to a telco man five years later. Still later, I read at the Zero Surge site that the lack of bonding is a common and serious problem. BTW, did you know no computer plugged into a Zero Surge protector has ever been damaged? ... Don't you think there would be a lot more damage in this neighborhood if the power company's lines weren't grounded? ... I wonder why I didn't see your question before. It's not buried in the ground, but of course it's connected to the same neutral bar as the power company's ground wire, eight feet from my ground rod. ... Most buildings are like cows in that multiple grounds are inevitable: water supply, water drain, furnace, construction materials, power tool lying on the ground. Your single-point theory has led to thousands of deaths when people touched objects like faucets and phones during thunderstorms. A building needs bonding. Sometimes it needs multiple ground rods. ... Does electricity always choose the longest path to ground? Except the rabbit ears, the only conductors within several feet of the TV were the hot wire and the neutral. So now you're telling me the surge came in through the plug and exited through a lightning bolt? I was watching the TV. I saw no spark at all. ... I'm the one who has been saying earthing had nothing to do with that incident. Unbonded grounds had zapped a computer and modem years earlier. ... Back to ground through the breaker box. That's where current flows through all my neutral wires. Aren't your neutrals hooked up? |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Electrical inspector makes up new rules during inspection | Home Repair | |||
Overhead electrical service to a storage shed | Home Repair | |||
Installing Electrical Outlet In Sink Cabinet | Home Repair | |||
Installing Ceiling Fan with Red wire on electrical box. | Home Ownership | |||
Forthcoming Building Regulations on electrical work (Part P) | UK diy |