Title:
CABLE LAYING AND REMOVAL
Document Type and Number:
Japanese Patent JP3184490
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To eliminate such a laying that undue leading-in in which cables are pulled by allowable tension or higher, in laying the cable by the lead-in, in conditions that the cable are extended in a main pipe, or through the main pipe or a lead-in pipe.
SOLUTION: When cables are laid by leading-in conditions such that the cables are extended in a main pipe, or through the main pipe or a lead-in pipe, laying is conducted under prior verification that laying tension obtained by the laying condition of the main pipe, the number of conductors of the cable or their logarithm, and a pipe diameter ratio of the diameter of a circumscribed circle of a bundle, which the cables extending in the main pipe are tied in a bundle with respect to the inside diameter of the main pipe, is lower than the allowable tension of the cable.
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Inventors:
Kazunori Tsuchihashi
Yusuke Kamei
Hiroshi Sugo
Yusuke Kamei
Hiroshi Sugo
Application Number:
JP12774298A
Publication Date:
July 09, 2001
Filing Date:
May 11, 1998
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H02G1/06; H02G1/08; (IPC1-7): H02G1/08
Attorney, Agent or Firm:
Masaharu Tanaka