westom
Responses from westom
| Environmental Potentials whole house surge protection, can I get your opinions? No protector does protection. Effective protectors (ie whole house) are connecting devices to what does protection. A protector is only as effective as its earth ground. Protection is defined by what harmlessly absorbs hundreds of thousands of jou... | |
| High end UPS for Expensive audio eequipments Series mode surge protection devices have the best (lowest) UL tested "let through voltage" or VPR for test surges. meaning that during tetsting the equipment being protected would suffer a much lower voltage than with MOV parallel devices. Diff... | |
| High end UPS for Expensive audio eequipments Correctly noted is my mistake with NFPA and UL. Both are separate and address human safety issues. Both address device protection and structure protection relevant to human safety. Neither says anything about quality of product functions. Otherwis... | |
| High end UPS for Expensive audio eequipments > Um, your comments about series mode protection are in contradiction with the UL surge protection ratings, and your insistence on relying on Joule ratings means you don’t understand the physics involved. No current = no joules. The same for ... | |
| High end UPS for Expensive audio eequipments cleeds has not even asked what 'single point earth ground' means. And somehow is an expert? Single point earth ground must both meet and exceed code requirements. As was clearly obvious. He could change tact and start learning what these expre... | |
| High end UPS for Expensive audio eequipments > Also, the length of the connection to the ground rod is not usually the determining factor of the safety ground's impedance - that's established by soil conditions. You have confused resistance with impedance. Wire length, sharp bends, ... | |
| High end UPS for Expensive audio eequipments > Please describe which power supply design you are talking about? Long before PCs existed, international design standards required 120 volt electronic to withstand up to 600 volts without damage. Today's PSU are more robust. I recently sa... | |
| High end UPS for Expensive audio eequipments akg_ca is correct when it comes to surge protection. Power supplies already contain robust protection that makes most surges (including mythical ones from household appliances) irrelevant. Concern is for something that might occur once every se... | |
| what does a power conditioner really do? Power conditioner is a vague term to describe most any device that might affect power. Most power conditioners do not even address half of the anomalies that others have described. Most who recommend these expensive devices ignore spec numbers. ... | |
| Lightning Insufficient information exists. For example, normal is for a surge be incoming to many adjacent appliances. But only cause damage in one. The surge is incoming to everything but only does damage in one or a few parts inside one appliance. Yes, it... | |
| Lightning Insufficient information exists. For example, normal is for a surge be incoming to many adjacent appliances. But only cause damage in one. The surge is incoming to everything but only does damage in one or a few parts inside one appliance. Yes, it... | |
| Lightning > I can vouch there must have been a great magnetic field moving> through my house that day as every one of my TV's had their CRT's> magnetized. A tiny field creates that distortion. Nuclear submarines suffer a similar effect by simply tr... | |
| Lightning > My theory is that the huge moving charge induced a voltage in the amp's mains primary. First start with basic concepts even introduced in elementary school science. Lightning seeks earth ground. A path for a 20,000 amp electric surge is via a... | |
| Power conditioning / surge protection A $20 protector from Staples (similar to a $10 protector from WalMart; similar to a $30 or $90 protector from other sources) does not claim to protect from typically destructive surges. Another completely different device (unfortunately also calle... |