OPTICAL FIBRE MULTIPLE CHAINS AND METHOD FOR MFG. THE SAME

An optical fiber composite insulator comprising an insulator body (1) having a through-hole (2) formed in its axis portion and at least one optical fiber (3) extending through the through-hole and sealed in the through-hole by an inorganic vitreous sealing material (5) at both end portions of the th...

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Bibliographische Detailangaben
Hauptverfasser:	ISAO NAKAJIMA, NORIYASU OGURI, SHOJI SEIKE
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CABLES CONDUCTORS ELECTRICITY INSULATORS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
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Beschreibung
Zusammenfassung:	An optical fiber composite insulator comprising an insulator body (1) having a through-hole (2) formed in its axis portion and at least one optical fiber (3) extending through the through-hole and sealed in the through-hole by an inorganic vitreous sealing material (5) at both end portions of the through-hole, which sealing material has substantially the same thermal expansion coefficient as that of the insulator body, has high resistances against breakage in the power frequency voltage test and in the lighting impulse voltage test, against crack formation in the cooling and heating test, heat proof test and heat cycle test, and against the light-transmission loss.