FREEZING FAILURE PREVENTING COMMUNICATION CABLE PIPE

PROBLEM TO BE SOLVED: To provide a freezing failure preventing communication cable pipe which is excellent in freezing failure prevention effect, allows a communication cable such as an optical fiber cable to be inserted easily and enables the freezing failure prevention function to be exchanged eas...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: IGARASHI YORIO, KOIZUMI TERU, YABUTA JUNJI, NOMURA YASUSHI, SAWADA HIROYUKI, FUJIWARA KENICHI, KASHIWAGI TAKUMI
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a freezing failure preventing communication cable pipe which is excellent in freezing failure prevention effect, allows a communication cable such as an optical fiber cable to be inserted easily and enables the freezing failure prevention function to be exchanged easily. SOLUTION: A freezing failure prevention pipe 3 is formed of a volume expansion absorption material layer 4 and flexible pipes 5 which are laminated on the inner and outer faces of the volume expansion absorption material layer 4 and whose outer and inner faces are substantially smooth. The freezing failure prevention pipe 3 is inserted into an outer pipe object 2 to obtain a freezing failure prevention communication cable pipe. When a freezing failure occurs, the freezing failure prevention pipe 3 is pulled out and a new freezing failure prevention pipe 3 is inserted for exchange. COPYRIGHT: (C)2008,JPO&INPIT