GYXTW overhead optical cable
Empty cable is a communication cable that is erected in the air through supports such as towers and poles, and is widely used in outdoor long-distance communication, access networks, rural communication and other scenarios
product parameters
1. The number of optical cable cores: 4 cores, 8 cores, 12 cores, 24 cores, 48 cores, 96 cores, 144 cores, 288 cores can be selected for transmission capacity requirements.
2, the type of optical fiber, (G.652D, G.655, G.657, etc., suitable for long-distance, high-speed transmission), multimode optical fiber (OM3, OM4, etc., suitable for short-distance LAN).
3, the empty frame optical cable is mostly single-mode optical fiber, because of its low loss and strong anti-interference.
sheath material, usually PE (polyethylene) or AT sheath (anti-termite sheath), strong weather resistance, can resist ultraviolet rays, high and low temperature (-40 ℃~ + 60 ℃), rain erosion.
4, FRP (glass fiber reinforced plastic) or steel wires are arranged in the center or on both sides of the reinforcement to improve the tensile force and bending resistance (the steel wire reinforced type needs to pay attention to lightning protection).
5, the structural fiber loose sleeve is twisted around the central reinforcement, and the side pressure resistance is good. It is common in medium and high core number optical cables.
6, the central bundle tube type: the optical fiber is concentrated in the central sleeve, and the structure is compact and light, which is suitable for low core number scenarios.
7, the tensile performance The maximum tensile force (such as 2000N, 3000N, designed according to the pole and tower spacing) when erected.
8, long-term tensile force: the continuous tensile force of daily wind, ice and snow load (usually 50% of the short-term tensile force).
9, compressive performance Side compression strength: 1000N/100mm (to prevent extrusion damage to the fiber during erection or operation and maintenance).
10, static bending radius: the minimum bending radius during laying (single-mode optical cable is usually 10 to 15 times the diameter of the cable).
11, dynamic bending radius: the minimum radius of temporary bending during construction (usually 2 times static).
12, impact resistance can withstand a certain impact (such as hail, foreign object collision), and the fiber attenuation change after impact is 0.1dB.
13, attenuation coefficient single-mode fiber (1310nm window): 0.36dB/km; (1550nm window): 0.22dB/km (the lower the transmission distance, the farther).
14, multimode fiber (850nm window): OM33.5dB/km, OM43.0dB/km.
15, dispersive single-mode fiber needs to control dispersion (such as G.652D zero dispersion point at 1310nm, 1550nm window dispersion coefficient 18ps/(nm · km)) to avoid signal distortion during high-speed transmission.
Bandwidth
16, the core parameters of multimode fiber, OM3 bandwidth 2000MHz · km (850nm), OM44700MHz · km (850nm).
17 Temperature range, -40 ° C~ + 60 ° C (to meet the use of severe cold and high temperature areas).
18, temperature cycle performance: after -40 ° C~ + 60 ° C cycle test, fiber attenuation change 0.5dB.
19 Weather resistance Anti-ultraviolet aging: The sheath does not crack or change color after ultraviolet irradiation, and the tensile strength retention rate is 80%.
20, waterproof performance: cable longitudinal water permeability 0.1mL/min (to prevent moisture from entering the transmission).
