Recent content by westom

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    Ellies drops the ball during Stage 6 load-shedding

    Adults ignore any and every recommendation that does not say why and does not cite relevant numbers. Only those recommendations can be confirmed by other honest sources. What part is damaged by a reduced, dropping, or zero voltage? If that part exists, it was identified in a responsible...
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    Ellies drops the ball during Stage 6 load-shedding

    Electricians are only taught code - what must connect to what for human safety. This is about electronics - what is inside appliances and how electricity works. Electricians are taught neither. Second, an educated consumer always ignores every recommendation that does not say why and does...
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    Ellies drops the ball during Stage 6 load-shedding

    When power is restored, everything is demanding maximum power. So AC voltage slowly rises back up to 120 volts. What is a surge? A protector has a let-through voltage - typically 330. That means it does nothing (remains inert) until a surge exists: a voltage well above 330 volts. How does...
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    Ellies drops the ball during Stage 6 load-shedding

    Load shedding does damage for the same reason any other power off does damage. All power off look same to hardware inside each appliance. Other anomalies can cause damage. But those do not exist with load shedding.
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    Lightning struck our LAN; please help us solve it

    Some cited a typical reason for all damage. Solution is based in what Franklin demonstrated. Lightning is a connection from charges in a cloud to other charges (maybe four miles away) in earth. If that path is anywhere inside, then nothing - as in nothing - will avert damage. Protection only...
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    Choosing The Right Surge Protectors

    Normal (acceptable) failure for a protector has no indication. That 'protector good' light only reports a type of failure (catastrophic) that occurs when a protector is grossly undersized. Acceptable failure is degradation. Protector still works. Just not as it should. Degradation is...
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    Choosing The Right Surge Protectors

    Why do so many other and less robust appliances not need protection? What is protecting a dishwasher, clock radios, central air, RCDs, recharging electronics, LED & CFL bulbs, and smoke detectors? Second, it does not absorb amps. They are marketing to consumers who can be scammed. If 10,000...
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    Surge protector red plug clamping voltage 300

    Voltages can vary so much that an incandescent bulb dims to 40% intensity. Or doubles intensity. Normal voltage for any computer (that meets ATX Standards) is anywhere from 190 to 265 volts. Most computers will be happy even on voltages that exceed that range. Those voltage variations are...
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    Surge protector red plug clamping voltage 300

    Any layman can purchase, drive into earth, and connect to a superior earth ground. Copper clad steel rods have long been a best choice for residential subscribers. Also missing from that earth ground rod are the essential connections so that telephone, TV cable, satellite dish, etc also have...
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    Surge protector red plug clamping voltage 300

    If those pipes had solder joints (were not continuous copper), then protection was compromised.
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    Surge protector red plug clamping voltage 300

    Earth spike (a rod in earth) is only one of so many examples of earthing electrodes. At minimum, at least two copper clad, 3 meter long rods must be driven in earth. Separated at least two meters. And solidly interconnected. Other examples include buried plates. Even better, a buried...
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    Surge protector red plug clamping voltage 300

    Nasty Geoff.D. apparently cannot read. Only tells us who to hate. Ironically everything I have posted comes from manufacturers that he cites such as Erico and Dehn. For example Only Type 1 or Type 2 can make that low impedance (ie less than 3 meter) connection to single point earth ground...
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    Surge protector red plug clamping voltage 300

    Go to any big box hardware store or electrical supply house. Ask for their 'whole house' protector. A technology so old and so well proven as to sell as a commodity. Confirm that it is rated at least 50,000 amps. Then direct lightning strikes (typically 20,000 amps) do not even damage that...
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    Surge protector red plug clamping voltage 300

    All protection (even the newest products) are based in the same concepts that did protection over 100 years ago. The many 'new products' that claim cures are also called hooey. One classic example is Early Streamer Emission devices. Even series mode filters are now promoted as if some new...
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    Surge protector red plug clamping voltage 300

    Class is only about human safety issues. It says nothing about protection. Protection is only defined by an answer to this question. Where do hundreds of thousands of joules harmlessly dissipate? How many joules does that protector claim to 'block' or 'absorb'? Any answer that does not...
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