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Several factors affecting cable performance
- Jan 20, 2018 -

Ultraviolet (UV)-do not apply ultraviolet-protected cables to direct sunlight.
Heat-the temperature at which a cable is in a metal pipe or trough is high, and many polymeric materials reduce the service life at this temperature.
Water--the moisture of the twisted cable on the LAN will increase the capacitance of the cable, thus reducing the impedance and causing the near-end crosstalk problem.
Mechanical damage (repair costs)--the repair of optical cables is very expensive and requires at least two termination points at each point in time.
Grounding-if the shielding layer of the cable needs grounding, the corresponding standard must be observed.
Total route length (not just between buildings)--the use of outdoor-level LAN twisted cable between buildings, its total length should be limited to 90 meters, for 100Mps or 1000Mbps network, its laying distance can not exceed this limit, such as laying distance between 100 meters to 300 meters, you should choose cable.