insulator


Also found in: Dictionary, Thesaurus, Medical, Legal, Wikipedia.
Related to insulator: Thermal insulator

insulator

[′in·sə‚lād·ər]
(electricity)
A device having high electrical resistance and used for supporting or separating conductors to prevent undesired flow of current from them to other objects. Also known as electrical insulator.
(materials)
A material that is a poor conductor of heat, sound, or electricity.
(solid-state physics)
A substance in which the normal energy band is full and is separated from the first excitation band by a forbidden band that can be penetrated only by an electron having an energy of several electronvolts, sufficient to disrupt the substance.

electrical insulator

A component or device made from material having great enough resistance to the flow of electric current to be effectively considered as a nonconductor of current.

insulator

A material that does not conduct electricity. Contrast with conductor.
References in periodicals archive ?
In both cases, the goal is achieved by increasing the insulating height of the support-bar insulator h.
Among the world-beating products it has developed and made are the world's strongest insulators for UHV (1 million volts) power transmission and bushings using the world's largest hollow insulators.
Other domestic majors in the electrical insulators' space include Bharat Heavy Electrical (BHEL), Saravana Global Energy, and Shreeji Power and Insulators.
Insulators coated with Powersil 570 Plus pass the 1,000-hour salt-fog test as per IEC 62217.
Water droplets formed on the surface of electrical insulators result in a disturbed electric field distribution around the insulator [16,17].
In a panic, Quimby went to eBay so she could pull the insulator off and put a higher price on it.
Q: I began collecting glass and porcelain insulators several years ago and now have 763 types.
Since NGK has been making insulators for use with power transmission and distribution apparatus at its factories in such nations as China and Indonesia, the Indian plant will enable it to provide a complete lineup of insulators at low cost on the global market, NGK officials said.
The Ministry of Economy, Trade and Industry (METI) said Tuesday it estimates a maximum of 41,000 tons of ozone layer-depleting gas, mainly from construction heat insulators, remain in Japan.
According to AES, the TPE has a self-cleaning effect, and it is the first product used in this application to pass the stringent FVO flammability test, as well as the 1994 and 1996 tracking-wheel tests, two measures of insulator performance in pollution and salt-spray conditions.
PALMDALE - An exploding insulator on a power pole caused a small fire that burned part of a parked car, fire officials said.