GYTS photoelectric composite cable
Optoelectronic composite cable is a new type of cable that integrates optical signal transmission and power transmission functions. It is widely used in communication base station power supply and communication, smart grid, security monitoring, rail transit and other scenarios
product parameters
1. Optical Fiber Composite Low-Voltage Cable (also known as Optical Fiber Composite Low-Voltage Cable). The 250 μm optical fiber is sleeved into a loose tube made of high modulus material, and the loose tube is filled with a waterproof compound. The center of the cable core is FRP or metal reinforced core (some structures need to add a layer of PE cushion to the reinforcement). The wire and the loose tube (and filling, rope) are twisted around the center reinforcing core to form a compact and round cable core, and the gap in the cable core is filled with water-blocking filler. Double-sided plastic-coated steel strip (PSP) after longitudinal extrusion of polyethylene or low-smoke halogen-free (LSZH) sheathed into a cable
2,, fiber unit parameters
fiber type: single-mode fiber (G.652D, G.657A1, etc., suitable for long-distance transmission), multimode fiber (OM3, OM4, etc., suitable for short-distance high-bandwidth scenarios).
3, fiber number: common 4-core, 8-core, 12-core, 24-core, can be customized according to communication needs (up to 144-core).
Fiber attenuation: single-mode fiber at 1310nm wavelength 0.36dB/km, 1550nm wavelength 0.22dB/km; multimode fiber (OM4) at 850nm wavelength 2.5dB/km, 1300nm wavelength 0.7dB/km.
4, conductor material: copper (TPC soft copper, high conductivity), aluminum (low cost, suitable for low voltage scenarios).
5, conductor cross-section: common 0.5mm ², 1.0mm ², 2.5mm ², 4mm ², 6mm ², high voltage scenarios up to 10mm ² above,
voltage level: low voltage (380V), medium voltage (1kV-35kV), according to the power supply distance and power selection (such as base station commonly used DC 48V or AC 220V).
6, fiber sheath: polyvinyl chloride (PVC, flame retardant), low density polyethylene (LDPE, weather resistance), low smoke halogen-free polyolefin (LSZH, suitable for closed environments such as subways).
7, power insulation layer: cross-linked polyethylene (XLPE, temperature resistance 105 ℃), polyvinyl chloride (PVC, temperature resistance 70 ℃).
8, armor layer: steel belt armor (GYTS structure, anti-mouse bite), steel wire armor (GYTA53, compressive and tensile, suitable for direct burial), non-metallic armor (anti-corrosion, suitable for strong electromagnetic environment).
9, outer sheath: weather-resistant materials (such as PE, LSZH), with anti-ultraviolet, acid and alkali resistance, wear resistance characteristics.
10, tensile strength: minimum allowable tensile force (such as unarmored cable 1500N, steel wire armored cable 10000N).
11, bending radius: static bending radius 10 times the cable diameter, dynamic bending radius 20 times the cable diameter (to avoid excessive bending of the fiber resulting in increased attenuation)
