Available in both multimode (OM3/OM4) and singlemode (OS2) variants, they support configurations from 4 to 24 cores in a durable central loose tube design. Meeting stringent international standards, these cables are tested for both fire resistance (IEC 60331-25) and flame. FireTuf OFC-LT-NM fibre optic cables are manufactured by Prysmian Draka. All feature a layer of glass yarns to provide reinforcement and additional fire protection, a water blocking tape. The fibers are positioned in a Tight buffer which is made by LSZH. The tubes have protect by double sheath. Below is a breakdown of the key categories, product. Please enter the characters shown in the CAPTCHA to verify that you are human. The LSZH sheathed fiber optic cable can not only dilute the concentration of combustible materials, but also absorb the heat generated by combustion, and at. ETK Kablo 's Non-Metallic Armored Fiber Optic Cables are purpose-built for environments requiring high mechanical strength and complete electrical insulation. Designed with an all-dielectric structure, these cables are non-conductive and entirely immune to lightning strikes and electromagnetic.