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Topic: Overhead line equipment


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In the News (Sat 19 Dec 09)

  
  Pedestal, Exhaust, Shop, or Oscillating Fans & Marine Door or Hatch Covers
Standard Equipment Company is your total resource for Marine, Industrial and Construction equipment and supplies.
We have a large inventory of Material Handling and Safety Equipment, Industrial and hardware and fittings, portlights, deck fittings, stairs (custom and standard), casters, mats and matting (by the roll or sized to order).
A complete line of Pumps/Pump Sets and Compressors for most applications are assembled in-house.
www.standardequipmentco.com   (440 words)

  
  SRP: Working near overhead power lines
Overhead power lines that appear to be insulated may not protect you from electric shock.
Although overhead power lines may appear to be insulated, often these coverings are intended only to protect metal wires from weather conditions and may not protect you from electric shock.
Be sure to check for overhead lines before picking produce from trees.
www.srpnet.com /safety/overhead.aspx   (510 words)

  
  3M Meeting and Presentation Solutions: Technical Support for Overhead Projector 9550
When line voltage is higher or lower than the standards of 120v, 220v, 230v or 240v, there will be an effect on lamp life.
Line voltage at 4 or 5 percent higher than the standard can cause a lamp to give 16% more light but last only 60% of the rated life.
An overhead projector where the light source is under the stage and light is transmitted through the transparency film to the head and onto the screen.
www.pitt.edu /~ciddeweb/CLASSROOMS/equipment/3M_overhead_projector9550.htm   (1474 words)

  
 Overhead Power Line Safety Act : Cleco
f any unauthorized person intends to work within ten feet of any high voltage overhead electric utility line, the person responsible for the work to be done must notify the owner or operator of the high voltage overhead electric utility line not less than forty-eight hours prior to commencing work.
As long as a bird is not touching anything but the power line, the bird and the line are at the same voltage, meaning they're both in the air.
However, if a bird lands on a power line and touches another object such as a utility pole or a tree at the same time it is in contact with a power line, the bird gives electricity a path to the ground.
www.cleco.com /site251.php   (240 words)

  
 Overhead Cranes - Overhead Crane Manufacturers   (Site not responding. Last check: )
Overhead cranes consist of a variety of components, which include hoists, hooks and ropes.
These overhead cranes are supported from a side wall or line of columns of a building to which the runway is attached.
Gantry cranes are a type of overhead crane in which the bridge for carrying the trolley or trolleys is rigidly supported by two or more legs running on fixed rails or a runway.
www.iqsdirectory.com /overhead-cranes   (1821 words)

  
 Overhead powerline - Wikipedia, the free encyclopedia
Today overhead lines are routinely operated at RMS voltages exceeding 765,000 volts between conductors, with even higher voltages possible in some cases.
Along a staggered array line the conductor cables for the supply of the earth net of the transmitting antenna are attached on the exterior of a ring, while the conductor inside the ring, is fastened to insulators leading to the high voltage standing feeder of the antenna.
The area under an overhead line can be used for most purposes, at which the danger does not exist that objects connected with the ground come into the proximity of the conductor cables or at which can be the danger that the conductor cables, insulators or mast constructions are damaged.
en.wikipedia.org /wiki/Overhead_powerline   (2169 words)

  
 Danger:  Overhead Electrical Lines - MOSH
An employee of a roofing contractor...moved his metal extension ladder from one location to another...in a fully extended vertical position...he lost control...the ladder struck a 7,2000 volt overhead line 28 feet behind him...he was electrocuted.
The requirement of insuring that overhead lines are de-energized, visibly grounded, relocated or provided with barriers to prevent accidental contact.
Are all overhead lines considered to be energized, unless the line is visibly grounded and the owner or operator has indicated that it is not an energized line?
www.dllr.state.md.us /labor/electricallines.htm   (1177 words)

  
 Clearance of Electric Supply Conductors to Grain-Handling Equipment, AEX-290-94
The line may then be sloped down at a ratio of 1:1.5, or 67 percent slope, to its regular height.
For systems with fixed grain-handling equipment, a power line serving the transformer and passing over a roof or other solid structure not easily accessible to people must have a minimum vertical clearance of 12.5 ft. (3.8 m) or more.
It is also wise to reposition the lines to their proper height or have the electrical service attached to the bin from a non-loading side.
ohioline.osu.edu /aex-fact/0290.html   (923 words)

  
 District 8 - Track Hoe Contacted Overhead Lines
Recently, a contractor at a southern Illinois surface mine was working below energized high-voltage lines when his track hoe came close enough to the overhead lines to cause an electrical arc, short circuit.
The overhead power lines were energized at 69,000 volts and were located approximately 21-feet above the ground.
The operator estimated he was not close enough to contact the overhead power lines.
www.msha.gov /District/Dist_08/powerline.htm   (282 words)

  
 Power System Engineering - Line Design
12.5 to 24.9 kV overhead line rebuild and conversion in Wisconsin and Minnesota.
In every major overhead or underground line construction project one of the most critical aspects of the entire project is procuring Right of Way (R/W) for construction of the facilities.
With the rapid growth of population in the urban areas, obtaining permission to occupy land for the purpose of constructing utility facilities is becoming more difficult and requires the expertise of personnel familiar with dealing with the property owners to obtain permission to occupy their land.
www.powersystem.org /services/linedesign/linedesign.aspx   (958 words)

  
 How to buy an overhead projector
An overhead projector is much more than just a light in a box.
An overhead projector’s brightness, which is measured in lumens, becomes of even greater importance when you plan to use LCD projection panels.
Will you need to move the projector from room to room for each presentation or will it be a stationary tool used in a dedicated space like a classroom or meeting area.
www.dukcorp.com /AudioVisual/products/HowOverhead.asp   (999 words)

  
 Overhead lines - Wikipedia, the free encyclopedia
Linemen on a Maintenance of way vehicle repairing overhead lines.
overhead wire at about 500 to 750 V above earth, while trolleybuses draw their power from two overhead wires (powered at similar voltage).
Because of that, at least one of the trolleybus wires must be insulated from tram wires.
en.wikipedia.org /wiki/Overhead_line_equipment   (2831 words)

  
 SUDOP PRAHA a.s. - Engineering, Consulting and Design
Overhead Line Equipment for high-speed railways, urban public transport and mining railways
Electrification of Horní Dvořiště - České Budějovice railway line
Electrification of rail lines in the Czech Republic and Slovak Republic
www.sudop.cz /en/services/electro.php   (175 words)

  
 EPRI Portfolio 2007 - 35.002 Overhead Transmission Inspection and Assessment Methods Guideline   (Site not responding. Last check: )
Overhead Transmission Line On-line Training (OTLOT): An aging workforce and the ever-increasing use of contractors have increased the need for effective training and competency evaluation techniques.
Overhead Transmission Line Equipment, Inspection, and Maintenance Practices Conference and Inspector Workshop: This task organizes and holds a bi-annual conference where utilities can share experiences in a conference environment.
Overhead Transmission Line On-line Training (OTLOT): OTLOT is delivered on CD ROM and uses industry standard protocols for logging on a reporting the results of the training.
www.epri.com /portfolio/product.aspx?id=1798   (1152 words)

  
 EPRI Portfolio 2006 - P035.002 Overhead Transmission Inspection and Assessment Methods Guideline   (Site not responding. Last check: )
Overhead Transmission Line Equipment, Inspection, and Maintenance Practices Conference.
Overhead Transmission Line Equipment, Inspection, and Maintenance Practices Conference: This task organizes and holds a bi-annual conference where utilities can share experiences.
OHTL Equipment, Inspection and Assessment Conference: This conference is an opportunity for members to share practices and issues.
www.epri.com /portfolio/product.aspx?id=1415   (1226 words)

  
 'one' / Network Rail review of overhead power line problems - One Railway   (Site not responding. Last check: )
We are very sorry that passengers recently experienced severe disruption due to overhead line problems and we understand the significant inconvenience these events caused.
The cause of the disruption on 30 August was a fault with the component that allows the overhead lines to expand and contract in changing temperatures.
Following a special joint inquiry, which took account of both passengers' criticisms and feedback from employees on duty on the relevant occasions, we have identified a set of initiatives which will be implemented to ensure that provision of information, alternative transport and assistance for passengers is improved in the event of any similar disruptive incidents.
www.onerailway.com /templates/NewsArticle.aspx?id=2177   (452 words)

  
 Overhead Power Lines
If an object (scaffolds, crane, etc.) must be moved in the area of overhead power lines, appoint a competent worker whose sole responsibility is to observe the clearance between the power lines and the object.
When mechanical equipment is being operated near overhead power lines, employees standing on the ground may not contact the equipment unless it is located so that the required clearance cannot be violated even at the maximum reach of the equipment.
This equipment may consist of rubber insulating gloves, hoods, sleeves, matting, blankets, etc. These items must be inspected prior to each use and tested annually.
www.osha.gov /Region7/overheadpowerlines/ohpl_safety_tips_0300.html   (500 words)

  
 Overhead Crane Ltd. - Original Equipment
Manufacturing in a demading market requires an eye to the future and an ear to the present.
Overhead Crane Ltd. recognizes and responds to the rapidly changing technology in the manufacturing industry without sacrificing the proven basic principles.
We have maintained this balance throughout the years with experience and we focus on the future of the crane industry with continued education and training.
www.overheadcrane.com /Original_Equipment   (89 words)

  
 ACP Observer, March 2004 - Physicians try to rein in runaway overhead
With practice overhead eating into physicians' revenue, practices are looking for ways to attack overhead, without cutting into the core services they offer patients.
Because personnel costs account on average for about one-quarter of the operating costs of internal medicine practices, internists are looking for ways to cut their number of staff—or use their staff time more wisely.
The flip side of cutting overhead is to maximize the revenue you can earn with those fixed and variable costs.
www.acponline.org /journals/news/march04/overhead.htm   (2138 words)

  
 SULIS - Sustainable Urban Landscape Information Series: U of MN.
An overhead structure, pergola, or arbor is frequently used to make the outdoors more inviting, to extend livable space, to create a shady retreat, and serve as a major landscaping element.
The overhead structure should be softened and blended into the landscape with plants for the best effect.
Find the exact area you would like a corner of the overhead structure to be located and drive a stake into the ground.
www.sustland.umn.edu /implement/overhead_structures.html   (1628 words)

  
 York Electric Cooperative, Inc.
Overhead power lines, for example, always should be considered energized and uninsulated...
If you have a swimming pool, make sure that overhead wiring does not pass over the pool and is safely away from the pool area.
If your power lines are underground, do not begin digging in the area without calling Palmetto Utility Service at 888-721-7877.
www.yorkelectric.net /be_safe/overhead_lines.html   (260 words)

  
 Overhead line equipment
The joint-stock company "JAUDA" has already been manufacturing for 40 years metallic power transmission line supports and also cross-arms (up to 330 kV).
About 90% of all metallic power transmission line support constructions and crosspieces for power lines of Latvia are made by "JAUDA".
Company also produces terminal supports of medium voltage and cross-arms of tangent-suspensions for aerial power lines with bare wire application, as well as tangent-suspensions for average voltage, anchor supports, angle-suspension supports and cross-pieces of dead-end supports for aerial power lines are being produced — different hooks, special screws and fastenings ensuring.
www.jauda.com /html/electrical_equipment/overhead_line.html   (148 words)

  
 Railway Technology - Atlas Rail Components - Overhead Line Electrification Equipment
While it is possible to purchase a complete light rail system from a number of manufacturers, it makes sense to employ a specialist company for the unique requirements of overhead line equipment.
We are able to deliver modern and novel designs in Overhead Line Electrification (OLE) for light rail systems.
Our solutions for overhead power transmission and catenary lighting systems are deliberately designed to ensure minimum visual impact, while delivering a secure and reliable system.
www.railway-technology.com /contractors/electrification/atlas-rail   (550 words)

  
 About Overhead Door Company of Tulsa
Overhead Door Company of Tulsa, family owned and operated since 1962, has become Northeastern Oklahoma's preferred source for quality garage door products, service and installation.
Due to our ability to provide a full product line, custom-engineered door applications and 24 hour emergency service, we have gained the reputation of being a dependable supplier for most of Green Country's commercial contractors and builders.
Overhead Door Company of Tulsa serves the Metropolitan Tulsa area, and also the surrounding communities of Muskogee, Bartlesville, Claremore, Okmulgee, Sapulpa, Henryetta, Pawhuska, Mannford, Cleveland, Ft. Gibson and Skiatook.
www.overheaddoortulsa.com /about.html   (146 words)

  
 BBC News | UK | Paddington signal 'partly obscured'
The key signal at the centre of the Paddington rail tragedy could have been partly obscured by overhead line equipment, the second interim report into the disaster has said.
The finding on signal 109 was revealed along with details from the "fl box" recorder which was recovered from the Thames train involved in the crash in west London on 5 October.
The report said further testing of signal 109 and related equipment had reinforced the initial interim report's finding that signalling was not at fault.
news.bbc.co.uk /1/low/uk/493155.stm   (602 words)

  
 PB Network | Issue 48 | Fifty Years of Switching Station Design Development on AC Electrified Railways in the UK
Between 1967 and 1973, the Glasgow-Gourock-Wemyss Bay line was electrified using outdoor oil-filled switchgear K11-W. The delivery of power to the OLE was through weatherproof bushings and the connection to the OLE was achieved by aerial bare-copper conductors.
During the implementation of metal-clad switchgear design in the early 1970s, a critical decision was taken to transfer the isolation and earthing facilities from indoor environment to the track environment by installing track isolators and earthing switches on the OLE.
Consequently, the end users of the equipment were unable to formulate an integrated maintenance strategy to deal with this change.
www.pbworld.com /news_events/publications/network/Issue_48/48_36_MansourB_FiftyYearsSwitchingStation.asp   (2249 words)

  
 BBC NEWS | UK | England | Measures to solve rail problems
Action to be taken includes an independent review by industry experts of overhead line equipment, One Railway and Network Rail said in a statement.
The cause of the disruption on 30 August was a fault with the component that allows the overhead lines to expand and contract in changing temperatures.
The cause of the disruption on 1 September is still being investigated, while the problems on 5 September were caused by a potential fault leading to precautionary speed restrictions.
news.bbc.co.uk /2/hi/uk_news/england/5345586.stm   (259 words)

  
 GROUP OFFICE OVERHEAD EXPENSE INSURANCE PLAN
This coverage can pay up to 100% of office overhead expenses whether you practice solo, or share expenses with partners or members of a professional corporation when you suffer a covered disability.
Covered Expenses include normal and regular business operation expenses such as employees' salaries, rent, utilities (heat, water, electricity, etc.), maintenance services, leasing costs of equipment, qualified depreciation, interest payments on business debts, professional liability insurance, membership fees and professional journals, and other fixed expenses that are normal and necessary in the conduct of your profession.
Benefits will begin on the first day of total disability after the 30 day waiting period and will continue until the earlier of (a) the day the insured person ceases to be totally disabled or (b) the end of the Maximum Benefit Period (up to 36 months).
www.acponline.org /public/groupins/overhead.htm   (938 words)

  
 Learn How to Calculate Your Company's Overhead Costs and Break Even Point
The fact is, many entrepreneurs are unaware of the total cost for running a business – they don't know how to factor their company's overhead.
For instance, if you want to hire an employee or buy new computer equipment, the cost can be entered into the system to see how it will affect overhead and/or burden.
For instance, there are reports that not only summarize current overhead, but also history reports, which are very useful for long-term comparison of the status of your business.
www.onlinesoftwareguide.com /0705overhead.html   (1111 words)

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