Frangible pulling bullet

An optical cable assembly comprising:

• an optical cable containing an optical fiber,
• an optical connector assembled to the optical cable and encircling a signal transmitting end of the optical fiber,
• and a pulling bullet for pulling the optical cable and the optical connector along a passage,
• the optical connector including coupling means for disconnect coupling of the optical connector to the pulling bullet,
• the pulling bullet having a covering means surrounding the signal transmitting end of the optical fiber,
• the optical connector and the pulling bullet being coupled to each other and providing spacing means for spacing the covering means from the signal transmitting end of the optical fiber and preventing abrasion thereto,
• the pulling bullet having securing means for securing a hauling means for pulling the pulling bullet along a passage,
• a junction of the optical cable and the optical connector having a tension force limit,
• the optical cable having a tensile strength, and
• the securing means having a frangible means with a breaking strength less than said tension force limit and less than said tensile strength for breaking and separating from the hualing means thereby protecting the optical cable and the optical connector from damage.