Friday 13 February 2009

Summer Sizzle Brings Blackouts Sags and Spikes to Your Computer Systems

Summer Sizzle Brings Blackouts, Sags and Spikes to Your Computer Systems





Why tempt fate ?





Summer weather can not only zap your newer computer systems but also your vintage computer as well as irrereplaceable vintage computer software as well as the time and energy spent in setup, hardware replacement and running computer systems.





Why does the summer season bring so much trouble - brownouts, sags and electric currents spikes?





Summer heat does wonders. Not only does it allow you to acquire a lovely tan but if causes utility grids to be strained beyond their capacity due to the increased use of air conditioners. In such cases power utilities adjust their voltage output, sometimes causing erratic power sags and spikes, which are extremely dangerous for computer hardware as well as software. And you can expect utilities to be more conservative to avoid another outage like that which happened in the hot August summer of 2003.





On Aug 14, 2003 it was estimated that due to a summer electric heat surge 50 million people and businesses were plunged into the dark and heat.





The summary cost was an estimated $ 6 billion.





Similarly it is estimated that in the United States that smaller outages cost the U.S. economy in lost productivity the not unsubstantial cost of $ 50 billion.





So says the IEEE - the Institute of Electronics and Electronics Engineers. The worlds' leading professional organization for the advancement of technology.





Secondly the unique geography of the U.S. produces favorable conditions for tornadoes, resulting in about 1000 tornadoes every year according to the weather channel.





Tornadoes are highly unpredictable with wind speeds reaching 300 mph, a tornado is the most destructive storm of all, ripping up utility lines and leading to lengthy, unexpected blackouts.





As well last years hurricane season was a record breaker with more than an alphabet's worth of named storms, causing the National Hurricane Center to resort to the Greek Alphabet ever. It was also the first season since 1851 to have three categories of five storms. (Katrina, Rita, Wilma).





Lightning is always the most obvious concern of most computer enthusiasts. Each lightening flash typically contains about 1 billion volts and between 10 and 20 thousand amps of current. Currents can transfer through wiring or plumbing and destroy everything in its path, of course including your irreplaceable Computer and Software Collection.





This damage is entirely possible. The National Oceanic and Atmospheric Administration (NOAAA) reports an average of 20 million cloud to ground flashes have been detected every year since 1989.





How can you protect yourself?





First of all purchase proper surge protection and have it in place.





There are various levels of surge protection devices.





1) Power bars with a simple switch. These are the choice of most as they are readily available and inexpensive. However the switch is just that a switch not a surge protector. The appearance of an electronic device fools many into believing that they "are protected". Sadly they are not.





2) Inexpensive Surge Protection devices. This is a better step than the first. However the protection is limited by the fact that the surge protection is afforded by simple Silica sand. With time and moisture (usually no more than a year) the surge protection is highly diminished.





If you use these inexpensive Silica sand based surge protectors replace them on a yearly basis. As well note the capacity of the surge protector. It does no good to have a very inadequate surge protector.





Read the labels and descriptions on the packages.





You can not protect a large computer system with a surge protector designed for one simple computer or laptop.





3) More expensive electronic surge protection units. A wise choice. However as noted above ensure that your protection is well rated above PEAK power use not a lower power use





4) Lastly you may well consider a more expensive though very safe solution an Uninterrupted Power Supply.





An uninterruptible power supply, or UPS, (sometimes called an 'uninterruptible power source ') is a device which maintains a continuous supply of electric power to connected equipment by supplying power from a battery when utility power is not available. A UPS is inserted between the source of power (typically commercial utility power) and the load which is to be protected. When a power failure or abnormality occurs, the UPS will effectively switch from utility power to battery power .While they are not limited to any particular type of equipment, they are typically used to protect computers.





Remember why tempt fate when it comes to your prized vintage computer system .





Fire departments not only fight fires they are most effective in preventing fires.





Remember at the very worst you can always unplug your computer and devicesto be safe . And as well remember to unplug the phone or broadband cable connection as well.


Arthur Fellon
Document Preperation.
www.vintagecomputermanuals.com

wireless weather station: wind vane

wireless weather station: anemometer

Tropical Storm Ernesto Delivers Just What The Surfers Ordered

Tropical Depression Ernesto left the Florida mainland Wednesday, and like a pent up post pubescent teenager, quickly regained its stamina over the warm Atlantic waters. Ernesto was officially declared Tropical Storm Ernesto around 11 o???clock that night.





About the same time, the beaches east of Jacksonville experienced the first band of Ernesto, rapidly moving cumulus clouds accompanied by thunderous booms and bright flashes, winds around 25 mph and brief but torrential downpours. The bands continued racing onshore intermittently throughout the night and by morning it was over. Or was it?





The eye of Tropical Storm Ernesto had actually passed well offshore of North Florida, continuously gathering strength and churning up the waters as it made its way to landfall in the Carolinas.





Weather wise, the storm was no big deal in the North Florida beaches area, and most people slept through it with little incident. But there were those who retired that evening with tense anticipation of what was to come the next day. As Ernesto passed offshore and north east winds turned to south west winds, a phenomenon typical of cyclonic storms occurred in the area.





As the waves generated by a passing storm pound the shore with the fierce power of a nor'easter, they can at times be huge, but are generally sloppy, poorly formed mush. These waves, backed by the winds from the east, can last as long as the storm is out there churning up the waters.





If the storm is paralleling the coast, and is close enough that it is effecting our wind direction, once it passes and is to the north, the winds will shift, coming out of the west.





Those big ole waves that were once pounding our beach are now standing up proud, spitting back foam from their tips with the blusterous wind hollowing out the face, preventing the wave to break until it can no longer hold back, finally curling down in a thunderous crash of white foamy water peeling the wave left and right.





The chop is gone, and the surrounding water is as smooth as a baby's butt. The water can look as calm as a lake, only to be up heaved by sets of incoming swells standing at attention until finally bursting at the seams at the last possible moment.





From a surfer???s standpoint, this is as good as it gets in North East Florida, but you better be there on time, because it only lasts a few tide cycles.





And that???s the downside. This west wind is so good at cleaning up the surf, that over time it totally knocks the waves down, and they keep getting as long as the west wind lasts. In an absence of anything creating waves in the Atlantic, the surf can diminish to less than 6 inches. Not an uncommon occurrence in Jax Beach or the entire east coast for that matter.





Due to the geography of the coastline in north Florida, we seldom get a direct hit from hurricanes or tropical storms. This is not to say that we won???t, and if we do, it will no doubt be disastrous. We do however get a lot of storms passing by, and some very close calls. Floyd is one that comes into mind that skirted our coast on its way to wreak devastation further north. The surfing community here has come to know what to look for, and with an excellent bottom that is in place at the Jacksonville Beach Pier, they also know where to go.





Tropical Storm Ernesto was small by any comparison and did not spend a lot of time off our shore generating waves. But every surfer knows that when the right circumstances converge, and all the conditions are met, there is a real potential for some very fun, if not huge surfing opportunities. In this case, this little tropical storm called Ernesto delivered!


A native of Jacksonville Florida, Michael Talbert lives, works, and plays in Jacksonville Beach. To find out more about the "Jax Beach" community, visit his website, the unofficial guide to Jacksonville Beach @ JaxBeachPier.com.

wireless weather station: weathervane

wireless weather station: weather