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Topic: Insulator

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  Grampa Mac's Insulator Emporium
Quality insulators are still available at reasonable prices.
The Insulator Emporium specializes in spending the time to make available, pack and ship reasonably priced and affordable historical glass insulators.
No collection of insulators is too large or too small.
www.insulatoremporium.com   (88 words)

  Highbeam Encyclopedia - Search Results for Insulator
An insulator is a poor conductor because it has a high resistance to such flow.
Electrical insulators are commonly used to hold conductors in place, separating them from one another and from surrounding structures to form a...
A conductor is a poor insulator because it has a low resistance to such flow.
www.encyclopedia.com /SearchResults.aspx?Q=Insulator   (705 words)

Therefore, a reflective insulation using aluminum foil reflects almost all of the heat back toward its source.
Since a reflective insulation material like The Insulator reflects heat, it protects against heat during the hot summer months and keeps heat in during cooler periods.
As such, The Insulator is an ideal convection and vapor barrier.
users.cwnet.com /~thall/insulato.htm   (433 words)

  SCEN103 -- Insulators
In an ideal insulator, all electrons stay tightly bound to the atoms, so there are no electrons that can be readily moved through the material for conduction.
The distinction between an insulator and a semiconductor is one of degree.
Insulators play a critical role in many aspects of technology, from large scale to the microscopic.
www.physics.udel.edu /wwwusers/watson/scen103/insulato.html   (578 words)

  Insulator - Wikipedia, the free encyclopedia
The opposite of electrical insulators are conductors and semiconductors, which permit the flow of charge.
Semiconductors are strictly speaking also insulators, since they prevent the flow of electric charge at low temperatures, unless doped with atoms that release extra charges to carry the current.
Insulating materials such as PVC (polyvinyl chloride) are used to minimise the possibility of a person coming into contact with a 'live' wire.
en.wikipedia.org /wiki/Insulator   (717 words)

 Mike Doyle - Polecat - Insulator Collecting Hobby History
Glass Insulators were first commercially mass produced in the late 1840s for use with batteries, telegraph lines, and lightning rod systems.
Insulator collecting as a formal, organized hobby actually began to emerge on the national antiques and collectibles scene in the middle 1960s.
The dust began to settle when the National Insulator Association (NIA) was founded on July 7th, 1973, with the election of its officers at the fourth big insulator show in Kansas.
www.oldinsulators.com /html/history.html   (619 words)

 Homeglossary.com - The World's Most Complete Real Estate Directory
Pre-cut, flexible, insulation, which fits between framing members, coming in 4 and 6 inch thickness for 16 and 24 inch joist spacing and is made of glass wool, wood fibers or cotton.
Batt Insulation - Pre-cut, flexible, insulation, which fits between framing members, coming in 4 and 6 inch thickness for 16 and 24 inch joist spacing and is made of glass wool, wood fibers or cotton.
Electrical insulators range from Teflon to varnish coating and are chosen with the use conditions in mind.
www.yourwebassistant.net /glossary/i6.htm   (668 words)

 CPRR Brooks August 6, 1867 Patent Telegraph Insulator
The round top of the insulator locks into a hole in the underside of the crossbar atop the telegraph pole, using the spike on the top front of the insulator to hold it in place.
The Brooks Insulator (Fig 37) consists of a suspension hook cemented into an inverted blown glass bottle, which is again cemented into a cast iron shell, designed for attachment to a cross-arm, as in Fig.
The remarkable insulating properties of this arrangement are mostly due to the use of paraffine, with which the cementing material (sulphur) is saturated.
cprr.org /Museum/Ephemera/Brooks_Insulator.html   (510 words)

 The Antique Insulator Emporium
At that time, threadless insulators were used to insulate the telegraph wires, but the various methods used to secure the threadless insulator to the smooth pin proved ineffective.
A carpenter by the name of Louis A. Cauvet patented the idea of a threaded pinhole in the insulator which matched a threaded pin, thus better securing the insulator to the pin.
The early insulators were marked on one side of the crown with "W. BROOKFIELD" and a few styles were similarly marked with "WM.
www.insulatoremporium.com /Books/brookfield.cfm   (336 words)

 insulator about
The insulator washer packages can be operated by crews working from the ground, climbing the structure, remote controlled tele-washing or operating from a vehicle-mounted aerial platform.
Important considerations in selecting the appropriate options are system voltage, insulator type, height of insulators to be washed, severity of the contamination and frequency of washing, wind conditions and access to the structures.
This type of insulator washer consists of a completely integrated unit that can be towed and parked, thus freeing the truck for other duties.
dialspace.dial.pipex.com /prod/dialspace/town/terrace/xdb11/translink/insulatorwashers.htm   (881 words)

 Insulator Collectors On the Net
Insulator collecting is an exciting, but sometimes little known, hobby.
These glass and and porcelain insulators played a key role in the development of the telegraph, telephone, and electric power networks.
Featured here are some of the best insulator resources on the web, and cover insulator clubs and shows, insulators for sale and trade, and individual collectors pages.
e.webring.com /hub?ring=insulators   (598 words)

 Central Maine Power Company - About CMP: CMP's Electric System - Transmission System: Glossary   (Site not responding. Last check: )
An insulator is a material or object through which an electrical current cannot pass, or passes with difficulty.
Good insulators have a high impedance, and do not allow current to flow though them.
CMP relies on the insulating properties of air to prevent short circuits between wires on power lines.
www.cmpco.com /about/system/glossary.html   (1431 words)

 Visualization of chromatin domains created by the gypsy insulator of Drosophila -- Byrd and Corces 162 (4): 565 -- The ...
Effect of the gypsy insulator on the distribution of DNA in 2 M NaCl-extracted nuclei from male larvae.
Insulators and boundaries: versatile regulatory elements in the eukaryotic genome.
Insulation of enhancer-promoter communication by a gypsy transposon insert in the Drosophila cut gene: cooperation between suppressor of hairy-wing and modifier of mdg4 proteins.
www.jcb.org /cgi/content/full/162/4/565   (6931 words)

 Insulator Materials
The material works as an insulator because glass fibers are poor conductors of heat AND, when fluffed into a blanket, they trap air (also a rather poor conductor of heat) so that convection currents cannot be easily established within the mass of material.
The result is a very good thermal insulator that enables one to hold a very hot drink only a few millimeters from one's fingers and just barely feel the warmth.
Once again, the purpose is to separate you from the cold by a barrier of insulation that interferes with heat transfer by conduction or convection.
www.newton.dep.anl.gov /askasci/gen99/gen99832.htm   (787 words)

 Conductors and Insulators
Metals such as copper typify conductors, while most non-metallic solids are said to be good insulators, having extremely high resistance to the flow of charge through them.
Most solid materials are classified as insulators because they offer very large resistance to the flow of electric current.
Metals are classified as conductors because their outer electrons are not tightly bound, but in most materials even the outermost electrons are so tightly bound that there is essentially zero electron flow through them with ordinary voltages.
hyperphysics.phy-astr.gsu.edu /hbase/electric/conins.html   (252 words)

 Lviv Insulator Company   (Site not responding. Last check: )
The Lviv Insulator Company Ltd. was founded in 2002, taking over from the Lviv Insulator Plant, which has been in operation since 1965.
The Lviv Insulator Company is situated in the southwestern part of the city of Lviv, which is close to the western border of Ukraine.
Our insulators can be used in the harshest and most hostile environments operating successfully in extremes of temperature (-60 C to +50 C), climate, humidity and conditions of pollution.
www.energyglass.com.ua /en   (472 words)

 Teleramics - Insulator collecting UK   (Site not responding. Last check: )
It is believed that a lot of hand made insulators, in particular the standard post office variety, where contracted out to agents who in turn, may, have spread the work amongst individual insulator making households.
The standard post office pattern insulator is awash with minor variations in size, markings and even manufacturing techniques, yet many are stamped with the same manufacturers logo suggesting a certain degree of tolerance with design limits outside of a rigid, machine based, factory production line.
Standard Post Office pattern insulators stamped with letters as discussed seem not to be stamped Bullers but are usually stamped with the receiving companies name i.e.
teleramics.com /markings.htm   (482 words)

Radiant heat is the most powerful heat that penetrates the walls, floors, ceilings and doors of automobiles, recreational vehicles, boats, airplanes, homes and buildings.
THE INSULATOR'S industrial grade aluminum foil is impervious to moisture, vapors and air currents.
THE INSULATOR meets Coast Guard Standards of Approval for use in watercraft.
www.gulffabrics.com /insulato.htm   (182 words)

 Canadian Insulator Collector Page
Hi, my name is Mike Csorbay, and I've been interested in insulators for many years, having lived near one of the oldest railway lines in Ontario, and having collected a few while exploring along the tracks.
This is a close-up of some of the insulators on the shelves.
On the left is a very short ("stubby") single-threaded, next is a short double-threaded 143, third is a tall (4 1/4"!) double-threaded, fourth is a tall variant, single threaded in a double-threaded mold style, fifth is a threaded version of a 743.2 ("cannonball") and last is a threaded 743.1 style.
www.parrotscanada.com /insulators/canada.html   (405 words)

 THE INSULATOR from Aircraft Spruce
The Insulator is one of the finest sound proofing and thermal insulation materials available, and will last the life of the aircraft.
The Insulator uses multi - layered fiber plys bonded to reinforced high performance foil to provide optimum barrier to acoustics, radiant heat, thermal heat, and moisture.
Insulator is available in 4x 6 panels or by the lineal foot (4 wide).
www.aircraftspruce.com /catalog/appages/insulator.php   (133 words)

 The functional analysis of insulator interactions in the Drosophila embryo -- Majumder and Cai 100 (9): 5223 -- ...
A single intervening insulator between an enhancer and a promoter may block the enhancer by interacting with enhancer-binding proteins as proposed in promoter decoy model (A1), with enhancer facilitator proteins as proposed by enhancer-facilitator model (A2), or with insulators/nuclear sites as proposed by the insulator-pairing model (A3).
According to the insulator-paring model, the block of the distal enhancer may be (i) abolished when two tandem insulators interact with each other, neutralizing their ability to interact with the external sites (B1), or (ii) enhanced when the two neighboring insulators interact independently with the external sites.
An insulator may select one among multiple available sites depending on insulator type (B2), or insulator strength, which would preclude interactions between neighboring insulators of even same type in the presence of a stronger competitor (B3).
www.pnas.org /cgi/content/full/100/9/5223   (3777 words)

 Bonded Logic - Natural Cotton Fiber Insulation
ABOUT US The Insulator Thermal/Acoustic Insulation is an extremely versatile and superior performing product that can be used in automobiles, trucks, buses, RV's, boats, aircraft, residential and commercial building.
The Insulator brings fire, fungi, and corrosive resistance to an insulation product that is formaldehyde and resin-free.
The Insulator’s natural fibers provide a non-itch padding that is easy to handle and install.
www.bondedlogic.com /insulator.htm   (106 words)

 insulator. The New Dictionary of Cultural Literacy, Third Edition. 2002
A material that does not easily transmit energy, such as electric current or heat.
Materials such as wood, plastic, and ceramics are insulators.
Fiberglass is an example of a heat insulator.
www.bartleby.com /59/23/insulator.html   (126 words)

 Insulators : National Insulator Association Home Page
The National Insulator Association (NIA) is an international organization of collectors and friends interested in communication and electrical insulators, as well as other artifacts connected with insulators, such as telephone, telegraph, power transmission, railroads, and lightning protection devices.
The NIA, as stated in its By-Laws, is a non-profit educational and scientific organization; its aim is to encourage insulator collecting and to protect the interests of its members and collectors, and has established standards and ethics by which its members may fairly deal with each other.
Any person interested in insulators, lightning rod equipment or a related collecting or historical activity shall be eligible to apply for membership.
www.nia.org   (686 words)

 The Glass & Porcelain Insulator Collector
Sponsored by a Missouri Valley Insulator Club member.
I've also found other desirable things while searching for insulators like marbles, glass bottles and jars.
I've been subscribing to Crown Jewels of the Wire for about two years now and really enjoy the articles, pictures and insulators for sale.
www.angelfire.com /ks/InsulatorMaGiC   (403 words)

 Pin Insulator
insulator, and the insulator has the conductor tied to it.
Pin insulators are made of either glass or porcelain.
insulator mounted on it in a vertical position.
www.tpub.com /content/construction/14026/css/14026_100.htm   (223 words)

 Lapp Insulator GmbH & Co.KG - Rodurflex Silicone Rubber Insulators and Porcelain Insulators for all voltage classes
Lapp Insulator GmbH & Co.KG - Rodurflex Silicone Rubber Insulators and Porcelain Insulators for all voltage classes
Lapp Insulator GmbH & Co.KG is a subsidiary of LAPP Insulators LLC.
Lapp Insulators LLC Announces Recapitalization of Company and Equity Investment from Andlinger & Company, Inc....
www.lappinsulator.de   (172 words)

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