The invention discloses a special high-hardness anti-tortuous optical cable strengthening core and an optical cable using the strengthening core; the optical cable comprises a sheathed cable body, a strengthening piece and optical fibers; the sheathed cable . The invention discloses a special high-hardness anti-tortuous optical cable strengthening core and an optical cable using the strengthening core; the optical cable comprises a sheathed cable body, a strengthening piece and optical fibers; the sheathed cable . Cable core: It is located in the center of the optical cable and is the main body of the optical cable; its function is to properly place the optical fiber so that the optical fiber can still maintain excellent transmission performance under certain external forces. Outdoor self-supporting optical cable for communication in an "8"-shaped configuration, featuring a metal reinforcing messenger wire, central tube. Dual Sheath Multi Loose Steel Tape Armoured (PSP) Features Applications For more information, please contact our sales team: sales@optronicsplus. net Dual Sheath Multi Loose Steel Tape Armoured (PSP) 24 to 144 250um fibre dry core OM1, OM2, OM3, OM4 multimode or OS1 /OS2. Fibre coating Sheaths The most common materials are: •PE; •HDPE; •PVC; •LSZH 6 Fibre Optic Cables Cabling Armouring and protections They can be either metallic or dielectric and are used to guarantee the following characteristics: •Protection against accidental damages •Protection against rodents.