GYFTY-4B1, is a stranded non-metallic center strength member, no armor, 4-core single-mode optical fiber power overhead optical cable. The optical fiber is sheathed in a loose tube (PBT), and the loose tube is filled with ointment). The center of the cable core is a glass fiber reinforced plastic (non-metallic FRP reinforcement), and the loose tube (and filler rope) is twisted around the center reinforcement core to form a compact and round cable core, and the gap in the cable core is filled with water blocking filler. A layer of PE polyethylene sheath is extruded outside the cable core to form a cable.

This non-metallic optical cable is generally used in environments such as strong voltage, anti-electromagnetic, anti-lightning, such as: power plants, photovoltaic power plants, wind power plants, hydropower plants, petrochemical plants and other environments as lead-in cables.

The center of GYFTY non-metallic optical cable is non-metallic FRP reinforced, which is a glass fiber reinforced plastic material, which is not sensitive to electric shock, especially suitable for areas with heavy lightning, rain, humidity and other climatic environments; it can be close to the power line and power supply The installation of the device is not disturbed by the induced current generated by it; compared with the metal core, it does not chemically react with the ointment to generate gas to affect the optical fiber transmission index; compared with the metal core, FRP has high tensile strength, light weight and low elongation ; bulletproof, anti-rat bite, anti-ant.