Seal construction of polymer insulator

A seal construction of a polymer insulator has a core member, an outer cover member including a sheath portion and sheds, which is arranged on an outer surface of the core member, and a securing metal fitting is arranged on each end of the core member. A tip portion of the sheath portion is arranged...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAMURA ITSUSHI, IMAKOMA TAKASHI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CABLES CONDUCTORS ELECTRICITY INSULATORS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
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Beschreibung
Zusammenfassung:	A seal construction of a polymer insulator has a core member, an outer cover member including a sheath portion and sheds, which is arranged on an outer surface of the core member, and a securing metal fitting is arranged on each end of the core member. A tip portion of the sheath portion is arranged between the securing metal-fitting and the core member, and a sealant is arranged between an inner surface of the securing metal fitting and an outer surface of the tip portion of the sheath portion. The seal construction mentioned above includes a small rib projecting radially outward from the sheath portion of the outer cover member. The small rib has a side surface connected to an open end portion of the securing metal fitting via the sealant, and the sealant does not protrude from a portion between the side surface of the small rib and the open end portion of the securing metal fitting.