How to use photoelectric multiplexing armored optical cable

　　Optoelectronic multiplexing armored cable is a kind of optical cable that combines power tranSMission and communication functions. Its outer package is protected by protective "armor", which is mainly used to protect the optical fiber cable from animal bites, moisture erosion or other damage. The following is how to use the optoelectronic multiplexing armored cable:

　　Preparation before construction

　　Confirm cable specifications:

　　Before construction, the specifications, models and performance parameters of the photoelectric multiplexing armored cable should be confirmed to ensure that it meets the design requirements.

　　Check the cable quality:

　　Check whether the outer sheath, metal armor and inner sheath of the optical cable are in good condition, and whether the optical fiber bundle tube is not damaged or broken.

　　Prepare construction tools:

　　According to the construction requirements, prepare cable connection tools, testing instruments, special joint boxes, PVC pipes and other construction materials and tools.

　　Second, the construction steps

　　fiber optic cable placement:

　　Optoelectronic multiplexing armored optical cables should be routed separately as much as possible to avoid mixing with other cables to reduce the risk of interference and damage.

　　During overhead placement, high-voltage direct current warning signs should be set up every 100 meters; warning signs should also be set up at the man (hand) hole of the pipeline line.

　　Optical cable connection:

　　It is necessary to avoid connection in the photoelectric composite cable line as much as possible, and it is forbidden to connect lines within 3 kilometers.

　　If you need to connect, you must use a special connector box for photoelectric composite cables and do a good job of waterproofing.

　　When connecting, follow the cable chromatography instructions to ensure that the corresponding color fibers in the same bundle are docked.

　　Optical cable end:

　　A special terminating device should be used for photoelectric multiplexing armored optical cables.

　　If the room space cannot be satisfied, the photoelectric composite cable should be peeled off near the remote supply equipment, and the necessary protective measures should be taken when the fiber bundle tube is placed on the wiring frame.

　　Protection measures:

　　During the laying process, corresponding protective measures should be taken according to the laying method of the optical cable (e.g. overhead, pipeline, direct burial, etc.).

　　For example, PVC pipes, power protection pipes, etc. are used for protection to prevent the cable from mechanical damage, rat bites, etc.

　　Grounding treatment:

　　In the overhead laying mode, the line cable should be grounded once every 500m using a pole lightning conductor or a pull wire.

　　The pole is grounded every 250m, and the direct buried, wire-pulled or extended grounding is used according to the situation.

　　III. Post-construction testing and maintenance

　　Test performance:

　　After the construction is completed, the performance test of the photoelectric multiplexing armored optical cable should be carried out, including the transmission wire to the ground, the insulation performance test of the armored and metal reinforced core, and the leakage current should not exceed 30mA.

　　Periodic inspection:

　　Lines should be regularly inspected by personnel qualified for power maintenance and communication maintenance to ensure the normal operation of the cable.

　　Trouble repair:

　　In the event of a fault, power-off maintenance should be performed first, and the line conductors should be grounded before maintenance operations.

　　IV. Precautions

　　Construction safety:

　　During the construction process, safety operating procedures should be followed to ensure the personal safety of construction personnel.

　　Environmental protection:

　　During the construction process, attention should be paid to protecting the environment to avoid causing pollution or damage to the surrounding environment.

　　Data record:

　　It is necessary to keep a good record of the data during the construction process, including the specifications, models, laying methods, connection positions, and other information of the optical cable, so as to facilitate the later maintenance and management.

　　In summary, the use of photoelectric multiplexing armored optical cables includes pre-construction preparation, construction steps, post-construction testing and maintenance, and precautions. During use, operations should be carried out in strict accordance with specifications to ensure the normal operation and safety of optical cables.