Surge protector the dis disney discussion forums – c gastronomie


Weston, while I agree with your points, I have to disagree on the devices. I spent 42+ years in the IT world and saw firsthand what happens on power surges/brownouts. Most buildings have a surge device at the meter base or attached to the main breaker panel for direct strikes (not that it matters much, nothing much protects against a direct hit, the best you can hope for is a blown protector). The only thing in a home, office, or building that handles a surge/drop is a UPS. One that will hold a building is really expensive and used only in the environment where a power drop cannot be tolerated.

On an RV, it’s a bit different, I use a Progressive 50amp hardwired into my power lead. It not only gives me some protection against surges, it also will shut the camper down if the voltage goes either too high or too low. An autoformer can be useful if you camp a lot in places that have issues with voltage regulation or you’re on a generator. Most folks that use generators along with shore power put the surge device just ahead of the distribution panel.

Third, all electronics have spec numbers. Voltage can drop so low that incandescent bulbs dim to 50% intensity. All electronic spec numbers say that voltage is ideal. Computers are required to be even more robust. A 40% intensity is just fine for a computer. However these same voltages can be destructive to motorized appliances. So the AC utility is required to maintain sufficient voltage – to protect motors. Or cut off power.

How often do your incandescent bulbs constantly glow at anywhere near 50% intensity? If it exists, then you call an electrician *yesterday* because a human safety threat exists and is that serious. Unfortunately most IT people have no idea why that symptom can be reporting a threat to human life.

Four, if brownouts are destructive, then I have read the component damaged by a brownout. Well I have been doing this stuff for over 50 years. And have yet to see a datasheet that defines that ‘at risk’ component. So please do what informed replies always do. Define what specifically is at risk and why – with numbers. That is what an honest technical recommendation does.

Those soundbyte declarations were based only in observation – also called junk science. Honest requires this much text just to contradict one point – with honesty. That is the difference between reality and junk science. Reailty takes so much longer to define – and spec numbers. Above only debunks the brownout myth so common with electrically naive IT people.

Next: a brownout is a voltage that drops well below 120 volts. A surge is a voltage that may well exceed 1000 volts. Numbers say nobody should be discussing brownouts and surges in the same sentence or paragraph if basic electrical knowledge was available.

A surge is averted by something completely different that must connect low impedance to earth. Two type protectors exist. One,located in a camper is too far from earth ground – cannot effectively protect from surges. Another that attaches to the power pole makes that low impedance (wire length is critical – not thickness) connection to earth. Only then do protector parts avert surges that typically well exceed 330 volts.

Direct lightning strikes without damage even to a protector are routine. When nothing can protect from a direct lightning strike, then we know a person, without relevant experience and knowledge, did not even learn how protection worked routinely over 100 years ago. That protection exists in every town. But is completely unknown when recommendation are based only in emotions, hearsay, wild speculation, advertising lies, and subjective reasoning (no numbers).

Your telco CO suffers 100 surges with each storm. How often is your town without service for four days while they replace that $multi-million computer? They use what is also implemented in a Progressive that attaches to the pole. How do you explain 100 surges per storm – and no damage for the past 100 years? Suddenly conclusions from observation take on a completely different meaning once one learns simple, basic electrical concepts that were standard long before mainframe computers (and long before you or I) existed.

Damage from brownouts and surges are exist when one did not even learn basics. Brownouts threaten motorized appliances – not electronics. Surge only do damage when a human has failed to learn simple and well proven concepts that were first demonstrated by Franklin over 250 years ago. Effective protectors (that also costs less money) come with spec numbers that define no damage even from direct lightning strikes.

The Progressive is for anomalies unique to campgrounds. Completely different anomalies (also called surges by the electrically naive) exist in homes and businesses. These require a completely different and unrelated solution – also called a surge protector.

Surge protector is a subjective term so that the naive can stay naive. Context with always required spec numbers must exist to differentiate a surge protector from something completely different called a surge protector. Protector for a camper has no relationship to a protector for homes and businesses.

No way around those electrically naive statements other then to expose them bluntly with numbers and well proven science. The most despicable is that popular, destructive brownout fable. Brownouts are a threat only in campgrounds – and only to motorized appliances.