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Patent Searching and Data


Title:
OPTICAL FIBER CABLE WITH FREEZING HAZARD PREVENTIVE PIPE AND LAYING METHOD THEREFOR
Document Type and Number:
Japanese Patent JPH0618721
Kind Code:
A
Abstract:

PURPOSE: To eliminate troubles, such as clogging of a pipeline, at the time of laying by previously bundling and integrating an optical fiber cable and freezing hazard preventive pipes by means of binders.

CONSTITUTION: The optical fiber cable 16 with the freezing hazard preventive pipes is previously produced by arraying the freezing hazard preventive pipes 12 along the optical fiber cable 10 and bundling and integrating the cable and the pipes by means of the binders 14. Such optical fiber cable 16 with the freezing hazard preventive pipes is drawn into a pipeline 20. Namely, the wires are spirally wound while the freezing hazard preventive pipes 12 are placed vertically along the optical fiber cable 10 at the time of production, by which the integrated optical fiber cable 16 with the freezing hazard preventive pipes is produced. The optical fiber cable 16 with the freezing hazard preventive pipes is laid by an ordinary method of carrying a drum 160 wound with this optical fiber cable to a laying site and pulling the optical fiber cable 16 with the freezing hazard preventive pipes by a winch can 30.


Inventors:
HASEBE HIDEJI
Application Number:
JP19912492A
Publication Date:
January 28, 1994
Filing Date:
July 02, 1992
Export Citation:
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Assignee:
FUJIKURA LTD
International Classes:
G02B6/00; G02B6/44; (IPC1-7): G02B6/00
Attorney, Agent or Firm:
Keiji Kunihira