Optical fiber composite insulator

Details Optical fiber composite insulator Optical fiber composite insulator

1989-03-28

1990-05-01

Lee, John D.

Electricity: conductors and insulators

Feedthrough or bushing

Compression

174139, G02B 636

Patent

active

049213229

ABSTRACT:
An optical fiber composite insulator which including an insulator body having a through-hole formed in its axis portion and at least one optical fiber extending through the through-hole and sealed in the through-hole by an inorganic vitreous sealing material at both end portions of the through-hole. The 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 lightning 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.

REFERENCES:
patent: 4316204 (1982-02-01), Inagaki et al.
patent: 4490006 (1984-12-01), Lidholt
patent: 4810836 (1989-03-01), Shinoda et al.

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