Structure of optical fiber composite overhead ground wire applying loose tube and its fabricating method

A composite overhead ground wire optical fiber cable, loose-tube type, comprising:

• first jelly means for protecting an optical fiber against water;
• plastic material means for protecting said optical fiber against external shock;
• a loose tube accommodating insertion of a sedcond and additional optical fiber;
• aluminum rod means for inserting said loose tube means containing said jelly-protected, plastic protected optical fiber thereinto;
• second jelly means for fixing said loose tube means and protecting against water;
• a plurality of steel wires protecting said cable against tension stress and providing conductibility;
• and
• aluminum coating means for protecting said plurality of steel wires against oxidation and corrosion.

A composite overhead ground wire optical fiber cable, loose-tube type, comprising:

• a first jelly applied to a circumference of an optical fiber, for protecting said optical fiber against water;
• a plastic material coating a circumference of said first jelly, for protecting said optical fiber against external shock;
• a loose tube permitting one or more optical fibers to be inserted there-into;
• an aluminum rod providing a groove, with said groove permitting said loose tube to be inserted there-into;
• a second jelly paved between said loose tube and said groove, said second jelly fixing said loose tube and protecting said loose tube against water;
• a plurality of steel wires externally provided on a circumference of said aluminum rod, with said plurality of steel wires protecting said cable against tension stress and providing conductibility;
• and
• an aluminum material coating said steel wires, said aluminum material protecting said steel wires against oxidation and corrosion.

A composite overhead ground wire optical fiber cable of loose-tube type, said cable being fabricated by a method comprising the steps of:

• acryl-coating an optical fiber;
• paving a circumference of said coated optical fiber with a first jelly, thereby waterproofing said coated optical fiber;
• covering said paved optical fiber with a plastic material, thereby protecting the optical fiber against external shock;
• inserting said paved and covered optical fiber into a loose tube and packing said loose tube with a silicon-like jelly, with said loose tube being made of an engineering plastic material and capable of having inserted therein at least a portion of an optical fiber;
• inserting said loose tube, with said paved and covered optical fiber inserted therein, into a groove formed in an aluminum rod;
• fixing said loose tube within said groove by packing a second jelly, between said loose tube and a surface of said groove;
• and
• combining said aluminum rod, said loose tube, and said paved and covered optical fiber with a plurality of aluminum-coated steel wires, thereby protecting said optical fiber against tension and providing conductibility.

A method of fabricating a composite overhead ground wire optical fiber cable, said method comprising the steps of:

• acryl-coating an optical fiber;
• paving a circumference of said optical fiber with a first jelly, thereby waterproofing said optical fiber;
• covering said paved optical fiber with a plastic material, thereby protecting said optical fiber against external shock;
• inserting said paved and covered optical fiber into a loose tube and packing said loose tube with a silicon-like jelly, with said loose tube being made of an engineering plastic material and having at least a portion of an optical fiber inserted therein;
• inserting said loose tube, with said optical fiber inserted therein, into a groove formed in an aluminum rod;
• fixing said loose tube within said groove by packing a second jelly between said loose tube and a surface of said groove;
• and
• combining said optical fiber, said loose tube, and said aluminum rod with a plurality of aluminum-coated steel wires, thereby protecting said optical fiber against tension and providing conductibility.