Optical fiber composite overhead ground wire (OPGW) is an overhead ground wire with optical fiber, which has multiple functions such as overhead ground wire and optical communication, and is mainly used for communication lines of 110kV, 220kV, 500kV, 750kV and new overhead high-voltage Electric power transmission. It can also be used to replace the existing ground wire of the old overhead high-voltage Electric power transmission, add optical communication lines, conduct short circuit current and provide lightning protection. Special structures can be customized according to user needs.

The GYFTY fibre optic cable is constructed with a 250µm fibre optic cable in a high modulus material pine tube filled with a waterproof compound. At the centre of the core is a glass fibre reinforced plastic (FRP) and the loose tube (and filler rope) is twisted around the central reinforcement to form a compact and round core with a water barrier filler in the gaps. A polyethylene sheath is extruded over the core to form the cable.

The GYTC8S(A) fibre optic cable is constructed by placing a 250µm fibre optic cable into a high modulus material pine tube, which is filled with a waterproof compound. At the centre of the cable core is a metal reinforcement core, around which the loose tube (and filler rope) is twisted to form a compact and round core.The core is wrapped longitudinally with a layer of plastic coated aluminium tape (APL) / (PSP) and integrated with the wire strands in a polyethylene sheath in the shape of a figure of eight.

GYTA fibre optic cables are constructed with 250µm fibre optic fibres in a high modulus material pine tube, which is filled with a waterproof compound. At the centre of the core is a metal reinforcement core, which for some cores is also extruded with a layer of polyethylene (PE). The loose sleeving (and filler rope) is twisted around the central reinforcement to form a compact and rounded core with gaps filled with a water-blocking filler. Plastic coated aluminium tape (APL) wrapped longitudinally and then extruded with a polyethylene sheath.

The structure of GYTS optical cable is to insert 250 µm optical fiber into a loose tube made of high modulus material, and the loose tube is filled with waterproof compound. The center of the cable core is a metal reinforced core, and for certain numbers of optical cables, a layer of polyethylene (PE) needs to be extruded outside the metal reinforced core. The loose sleeve (and filling rope) is twisted around the center strengthening core to form a compact and circular cable core, and the gaps inside the cable core are filled with water blocking fillers. Double sided coated steel strip (PSP) longitudinally wrapped and extruded into polyethylene.

The GYTA53 fibre optic cable is constructed by placing a 250µm fibre optic cable in a high modulus material pine tube, which is filled with a waterproof compound. At the centre of the core is a metal reinforcement core, which for some cores is also extruded with a layer of polyethylene (PE). The loose sleeving (and filler rope) is twisted around the central reinforcement to form a compact and rounded core with gaps filled with a water-blocking filler. Plastic coated aluminium tape (APL) is wrapped longitudinally and then extruded with a layer of polyethylene.

The structure of GYFTZY63 optical cable is to insert 250μm optical fiber into PBT loose tube, fill the loose tube with waterproof grease, and the center of the cable core is a non-metallic reinforced core. The gap is filled with waterproof grease, and the loose tube (and filling rope) is twisted around the central reinforced core to form a compact and circular cable core. A layer of sheath material is extruded outside the cable core, and glass yarn is placed outside the sheath as anti rodent material. Then, a layer of polyethylene (flame retardant) sheath material is extruded.

ADSS fibre optic cable is a loose-jacketed, laminated construction, with 250µm of fibre optic cable placed in a loose tube of high modulus material, filled with a waterproof compound. The loose sleeving (and filler rope) is twisted around a non-metallic central reinforcement core (FRP) to form a compact core with gaps filled with water-blocking grease. The inner sheath of polyethylene (PE) is extruded outside the core, then the reinforcing aramid is stranded and the outer sheath of PE or AT is extruded.

GYTZA53+33 optical cable is an armored cable designed specifically for complex outdoor environments, with flame retardant, moisture-proof, and tensile properties, suitable for steep slopes, river crossings, and other scenarios.

The GYXTW fibre optic cable is constructed by placing 250μm fibres in a loose tube made of high modulus plastic.. The tubes are filled with a waterresistant filling compound. The tube is wrapped with a layer of PSP longitudinally.Between the PSP and the loose tube waterblocking material is applied to keep the cable compact and watertight. Two parallel steel wires are placed at the two sides of the steel tape.The cable is completed with a PVC or PE sheath.