(1) Faults caused by the materials of components in the fiber distribution box of optical cables: ① There is a big gap between the instructions of the Optical Fiber Cable Distribution Box of optical cables and the actual technical data. (2) the cable distribution box purchase, storage management is lax. (3) The unclear technical disclosure for the construction of the fiber distribution box of the optical cable brings unnecessary restrictive factors to the installation and use of the fiber distribution box of the optical cable, thus causing operational failure.
(2) Failure of fiber distribution box caused by construction reasons: ① Loose quality control of accessory materials of fiber distribution box, causing hidden dangers to safe operation. (2) The installation process is not up to standard, for example, the cleaning inside the box is not complete. (3) The material configuration of accessories in the optical cable distribution box is not up to standard. (4) Inadequate and inconspicuous setting of signs in the fiber distribution box of optical cables and inadequate sealing treatment of the fiber distribution box in humid environment have all left hidden dangers for the operation of the fiber distribution box of optical cables.
(3) Failure of fiber optic cable distribution box caused by poor management and maintenance of the operating unit: ① Maintenance inspection and testing cannot be carried out regularly. (2) due to seasonal natural rain, wind and snow, sun exposure and other factors to form the fault, such as; Factors such as corrosion and loosening of grounding bolts.
(4) Failure of fiber optic cable distribution box caused by other reasons: ① Failure caused by overload operation of fiber optic cable distribution box because long-term calculation cannot be considered for temporary power load or statistics are not thorough. (2) The wiring holes at the upper and lower ends of the components in the fiber distribution box of the optical cable do not match with the diameter sections of the incoming and outgoing wires or cables to form potential power supply hazards. (3) in the construction near the fiber distribution box, damage to the power supply circuit causes its short circuit or grounding causes fiber distribution box failure.
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