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Topic: Transmission tower


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In the News (Mon 7 Dec 09)

  
  Utility line transmission tower apparatus - Patent 4615154
A tower in accordance with claim 1 further comprising means secured to said connection means for the insertion of a lifting member to facilitate the lifting and moving of said tower.
A tower in accordance with claim 15 in which said fastening means comprises a pair of tie plates each secured to the ends of said elongate members and to said tower arms.
A tower in accordance with claim 11 further comprising means adjacent said horizontal retaining structure for the insertion of a lifting member to facilitate the lifting and moving of said tower.
freepatentsonline.com /4615154.html   (2999 words)

  
 KVLY TV11 - Tower Facts   (Site not responding. Last check: 2007-10-29)
The steel tower is taller than the combined height of the Great Pyramid Khufu at Giza, the Eiffel Tower in Paris and the Washington Monument.
If a hunter at the base of the KVLY tower shot at a goose flying near the top with a.45 caliber pistol, he would have to lead the goose by more than the length of a football field, or approximately 335 feet.
The elevator cable used in construction of the tower is 7,870 feet.
www.kvlytv11.com /info_tower.html   (290 words)

  
 Transmission tower testing   (Site not responding. Last check: 2007-10-29)
In an age where dual usage of power transmission towers is common place there is a need to evaluate the tower capacity, what it was prior to loading and sway or movement limits especially for the higher bandwidth Microwave point to point transmissions.
There is is a common failure mode we have seen in the free standing towers we have tested which may require consideration for the next generation loading of these structures.
The radial plot of the tower mode shape shows the twist and coupled with the deflection at the lower third points to the failure plane of the tower.
integrity.kuasa.com /towers.html   (407 words)

  
 [No title]
Nashville television tower casualties, 1975 163 K.A. Goodpasture 1978 Television tower casualties, 1976 Migrant 49(3): 53-54.
Television tower casualties, 1976 164 K.A. Goodpasture 1984 Television tower casualties, Nashville, Tennessee 1976-1983.
TV tower casualties at Nashville: spring and autumn, 1970 258 A.B. Lawson, and M.J. Wyndham 1993 A system of monitoring wildlife interactions with electricity distribution installations in a supply region of the Cape Province in Southern Africa.
www.energy.ca.gov /pier/environmental/avian_bibliography/2004_AVIAN_BIBLIOGRAPHY.TXT   (15877 words)

  
 Eiffel Tower   (Site not responding. Last check: 2007-10-29)
The Eiffel Tower (French: la Tour Eiffel) is a metallic tower built on the Champ de Mars in Paris, France, and is nowadays the most famous landmark and symbol of Paris.
The tower is currently painted to a shade of brown.
The Radio Tower Gliwice was nicknamed "Eiffel Tower of Upper Silesia" and the wood framework tower of the transmitter Ismaning, which was demolished in 1983 was called the "Bavarian Eiffel Tower".
www.worldhistory.com /wiki/E/Eiffel-Tower.htm   (2303 words)

  
 Secondary Stresses on Transmission Tower Structures   (Site not responding. Last check: 2007-10-29)
The power industry is moving toward the use of high-voltage transmission lines on tall, flexible towers.
These towers are designed for heavier loadings than were previous towers, but the secondary effects of tower displacement tend to be ignored in the present day tower analysis.
This paper examines the secondary effects from the large displacement of flexible towers, reviews the secondary stresses arising from joint rigidity and member continuity, and examines the reliability of tower strength predicted by the ASCE design guidelines.
www.pubs.asce.org /WWWdisplay.cgi?8401280   (120 words)

  
 TOWER Page
TOWER is a powerful and easy to use Microsoft Windows program for the analysis and design of steel latticed towers used in electric power lines or communication facilities.
TOWER takes advantage of symmetry in a structure in both joint and member generation, duplicating symmetrical joints and members about either axis, both axes and even in a triangular format found in many communication structures.
TOWER provides a well defined XML output file and hooks that enable pre and post-processors to be connected to the program making it the ideal engine of your custom lattice tower analysis process.
www.powline.com /products/tower.html   (1565 words)

  
 CenterPoint Energy :: CenterPoint Energy responds to transmission tower incident   (Site not responding. Last check: 2007-10-29)
Transmission towers bring electricity from generating plants to our communities and into our homes.  They are a vital part of the electric transmission and distribution system.  However, they can also be dangerous if people do not exercise reasonable caution around them.
The transmission towers are primarily located on property owned by CenterPoint Energy and clearly marked with “NO TRESPASSING” signs, which are visible to anyone.
The vast majority of the towers are also equipped with danger signs.  These signs are clearly visible and warn the public to stay off the towers and of the danger of hazardous voltage above.  Step bolts on the tower are located approximately 12 feet above the ground in most cases.
www.centerpointenergy.com /cda/print/1,3220,105425,00.html   (200 words)

  
 nbc5i.com - News - Investigators Continue Examining Damaged Tower
DALLAS -- An electric transmission tower in northeast Dallas has been damaged, and federal investigators are not ruling out an explosion.
A Dallas Parks Department mowing crew discovered damage to the tower, which is located in Harry Moss Park, Walnut Hill Lane and Fair Oaks Avenue.
One of the tower's support legs was bent, although TXU officials said the tower was in no danger of falling or collapsing.
www.nbc5i.com /news/3862833/detail.html   (315 words)

  
 ANCO Develops Transmission Tower Load Limited (ANCONEWS VOL. 3, NO. 3)
Many electric power transmission towers are designed with a relatively brittle lattice steel structure that is prone to failure when subjected to extraordinary single dynamic events caused by storms, wind, tree strike, ice load shedding, tornadoes, aircraft impact, stringing accidents, and vandalism.
Several feet of ductility are needed to prevent tower failure." In the worst scenarios, miles of towers have been lost in a domino effect emanating from a single event.
In the event of a dynamic load that could fail the tower or tower arm, the TL3 extends plastically up to 2 meters (7 feet) to absorb the shock energy and limit the force applied to the tower or adjacent towers.
www.ancoengineers.com /Articles/5.2.18.html   (584 words)

  
 Section 4, PREVENTIVE MAINTENANCE OF TRANSMISSION LINES
In the transmission line maintenance fault prevention is probably more ecnomical and it is normally in the form of routine preventive maintenance.
The breakdown on the transmission line could be reduced if the fault detection system for the transmission line and timely action to rectify the defect are quite effective.
All linemen, who shall be working on transmission tower, conductor or fittings shall wear and make use of all safety belts and other safety equipments provided for their safety and protection.
www.powermaintenance.com /lines/sec4.html   (7852 words)

  
 Composite Transmission Tower Named 1999 CERF Innovation Award Finalist   (Site not responding. Last check: 2007-10-29)
This unique "fastenerless" composite transmission tower can be installed in one day, as compared to three to five days for a steel tower.
The tower, constructed of E-glass and vinyl ester resin, was developed collaboratively by industry and government.
The non-conductive composite material that makes up the tower is safer for workers to install on live lines and reduces the potentially harmful electro-magnetic field emissions.
www.cerf.org /about/press/8_21_99.htm   (443 words)

  
 Transmission tower testing   (Site not responding. Last check: 2007-10-29)
This is a typical loaded free standing telecommunications tower.
This failure plane migrates with various tower loadings.
This is a dual usage tower for cell phone use we have tested similar.
www.integrity.kuasa.com /towers.html   (407 words)

  
 Stressing of Transmission Tower Peak by Lighting   (Site not responding. Last check: 2007-10-29)
A lightning stroke on the peak of a transmission line tower causes a current to flow to the ground through the peak members if the overhead ground wire is not connected directly to the ground electrode.
The failure of the tower peak so designed due to electromagnetic forces caused by lightning currents is illustrated with an example.
An electrical connection between the overhead ground wire and the ground electrode or reinforcement of the tower peak are recommended to be the viable remedial measures.
www.pubs.asce.org /WWWdisplay.cgi?5014328   (147 words)

  
 * NZine * Electromagnetic Radiation - Report On Ouruhia Health Concerns - Electromagnetic radiation, New Zealand ...
The latter was seen as a key player, having issued the original permit to Radio Network for AM transmission in 1980, and having closed its eyes to the additional unauthorised FM transmissions added in mid 1990.
They consider their situation very different from those who protest cell phone towers, in that this is concerned with current ill health, not the potential for future ill health.
The report notes some evidence of a relationship between the years when additional FM transmissions were added to the tower, and the onset of ill health.
www.nzine.co.nz /features/emr3.html   (2066 words)

  
 Transmission Tower Suspect Makes First Court Appearance   (Site not responding. Last check: 2007-10-29)
After surrendering to police on Sunday, the man accused of tampering with electrical transmission towers up and down the West Coast made his initial appearance in federal court on Monday.
The 62-year-old Poulin was arrested for removing bolts from a power transmission tower near Anderson in Shasta County, but is suspected of at least seven other incidents of sabotage.
Incidents of transmission tower vandalism have been seen in a number of West Coast locations, including Sacramento, Elk Grove and Anderson in California, The Dalles, McNary, Madras, and Klamath Falls in Oregon, and Benton City, Washington.
www.kxtv10.com /storyfull.asp?id=5665   (308 words)

  
 [cr-india]NEWS: Drama as radio anchor climbs transmission tower (LEADS)   (Site not responding. Last check: 2007-10-29)
Drama as radio anchor climbs transmission tower >From Indo-Asian News Service New Delhi, Aug 14 (IANS) A disgruntled news reader of All India Radio (AIR) Thursday climbed a 120-foot-high transmission tower here seeking a pay hike but came down finally after four hours of drama and tension.
Police officials heaved a sigh of relief as Bhaskar Barua climbed down the tower and midway got on to a crane that brought him down amid cheers from the thousands watching the bizarre protest.
Barua, who kept hurling leaflets from atop the tower listing his demands, was immediately taken to a hospital for medical check-up.
mail.sarai.net /pipermail/cr-india/2003-August/002521.html   (380 words)

  
 Groundspeak Forums -> Cache Beneath A Transmission-line Tower
Maybe towers aren't that big of an issue but intuition and common sense told me, as it does miragee, that power tower bases don't make the best location for a regular container cache hide.
If the goal was to offer cachers the view of the neighborhood behind the tower, and the marsh and lagoon in the other direction, another placement just 50 or 60 feet away from the tower would have worked just as well.
All that aside, there are all sorts of buildings, roads, plagrounds, parks, etc under and near such towers, so no, I don't think it's a bad place for a cache, other than the fact that static electricity might keep hunters on their toes.
forums.groundspeak.com /GC/index.php?showtopic=110035   (3990 words)

  
 CALIFORNIA YANKEE: Electrical Transmission Towers Sabotaged
The Milwaukee Journal Sentinel reports that the weekend collapse of two electric transmission towers was caused by someone purposely removing bolts that held the towers in place:
As the 80-foot towers collapsed, they brought down at least one nearby power line, which was still draped across the tracks Sunday.
Blankenheim [a spokeswoman for Waukesha-based American Transmission Co., which owns the towers] and Troy said bolts were removed from another tower in April 2003 in the Town of Lisbon.
cayankee.blogs.com /cayankee/2004/10/electrical_tran.html   (805 words)

  
 Transmission line tower climb
In the area around Rotterdam transmission line towers are a standard feature of the landscape.
However if you're climbing or working in a transmission tower you cannot control your distance from the wires very precisely.
Also the tower and the wires are swinging in the wind.
www.xs4all.nl /~kazil/bihoogsp.html   (1048 words)

  
 Transmission Tower Suspect Agrees to Plea Bargain   (Site not responding. Last check: 2007-10-29)
The Washington state man accused of tampering with electrical transmission towers up and down the West Coast has accepted a plea bargain from federal prosecutors.
Poulin is believed to have targeted towers in Sacramento, Elk Grove and Anderson in California, The Dalles, McNary, Madras, and Klamath Falls in Oregon, and Benton City, Washington.
His admission of guilt was the first time authorities learned that a tower in Idaho might also have been vandalized.
www.kxtv10.com /storyfull.asp?id=5783   (271 words)

  
 KBTX | KBTX Gets New Transmission Tower
The over 300 foot transmission tower in the KBTX backyard is in its last few days of serving our station.
That's because construction workers are building a new transmission tower right next to the old one.
The current standing tower is what put News 3 on the air back in 1957.
www.kbtx.com /home/headlines/1161766.html   (85 words)

  
 MS Tower & Mast,Towers,Masts,Communications Towers,Radio towers,TV Towers, ...
One of the worlds tallest office buildings, the extension of the television tower was dynamically checked using MS Tower, Mast and Pole.
Crystal Palace, London, UK England's tallest self supporting steel tower, which is the principal transmitter for the BBC.
The structure is maintained using MS Tower, Mast and Pole.
www.mstower.com /page-2-gallery.htm   (133 words)

  
 Press Release - Electric Transmission Tower Damage Causes Evacuations - Sacramento City Fire Department
A high tension electrical power transmission line had been struck by a vehicle sometime last night.
Fire Fighters found several cross members that help stabilize and strengthen the structure were bent along with a fracture to one of the support legs holding the transmission tower upright.
The Sacramento Police Department was called to assist with evacuations and isolation of the area along Alvarado Blvd. A Transmission Troubleman from P.G. arrived at 6:29 p.m.
www.worldofweb.com /fire/PressRelease.cfm?PressReleaseID=101   (246 words)

  
 Transmission Tower Painting Services Suppliers from the PowerSourcing Directory of Transmission Tower Painting Services
Power Sourcing is your best source for finding transmission tower painting services suppliers.
We are dedicated to bringing qualified transmission tower painting services buyers and suppliers together.
Find a supplier of transmission tower painting services and thousands of other products and services for purchasing and research.
www.powersourcing.com /sf/transmissiontowerpaintingservices.htm   (320 words)

  
 CBC Nova Scotia - Teen suffers shock and fall from transmission tower   (Site not responding. Last check: 2007-10-29)
A teenager from Halifax is in stable condition after receiving an electric shock and falling 15 metres from a transmission tower Monday night.
Police say the 16-year-old boy was climbing the tower around 8:30 p.m.
He apparently touched a transformer and was shocked, and fell to the ground.
www.cbc.ca /ns/story/ns_fall020903.html   (101 words)

  
 BPA Offering $25,000 Reward for Information on Transmission Tower Saboteur   (Site not responding. Last check: 2007-10-29)
Attempted sabotage was found at BPA transmission towers located near The Dalles, Maupin, Boardman and Umatilla, Oregon and Benton City, Washington.
In addition to these BPA transmission lines, towers on major transmission lines owned and operated by other utilities were similarly sabotaged.
The FBI is coordinating the investigation with the California Highway Patrol, Oregon State Patrol and Washington State Patrol, as well as local law enforcement agencies in the affected areas.
tdworld.com /news/power_bpa_offering_reward   (369 words)

  
 CNN - Transmission tower collapses, killing three workers - Oct. 12, 1996   (Site not responding. Last check: 2007-10-29)
CEDAR HILL, Texas (CNN) -- Three maintenance workers were killed Saturday after a 1,500-foot-high transmission tower collapsed without warning, snapping power lines and causing a transformer to explode.
The workers were preparing to install a new antenna on the tower used by TV and radio stations that were temporarily knocked off the air when the tower folded.
The names of the victims, who worked for Doty Moore Tower Services, were not immediately released.
www.cnn.com /US/9610/12/briefs.pm/tower/tower.html   (139 words)

  
 Currumbin TV Transmission Tower Photos - March 2003   (Site not responding. Last check: 2007-10-29)
Should anyone with legal access to the Tower wish to give me guided access to the insides, please also email me at evan@goldcoastguy.com.
I'm assuming the Microwave Dish (grey) is for receiving transmissions from Mt Tamborine and the Satellite Dish is for receiving ABC & SBS Transmissions.
The top of transmission tower has been welded onto the original tower.
www.goldcoastguy.com /currumbin/currumbin2.html   (316 words)

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