Patent ID: 11947175
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. An optical fiber cable comprising:
a cable core arranged at a central portion and accommodating a plurality of optical fibers gathered together;
an inner layer sheath arranged on an outer circumference of the cable core and sheathing the cable core;
a metal sheath arranged on an outer circumference of the inner layer sheath and includes a part single-wound and the rest double-wound around the inner layer sheath;
an outer layer sheath arranged on an outer circumference of the metal sheath and sheathing the metal sheath; and
at least one outer sheath tearing string arranged in a longitudinal direction inside the metal sheath and inside the part single-wound of the metal sheath, and includes a part embedded in the inner layer sheath and another part exposed from the inner layer sheath.