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Author: James Publish Time: 10-06-2025 Origin: Site
Q: What is the minimum bending radius of FTTH drop cable?
A: Generally, the cable shall be bent no less than 20 times the diameter for installation and 10 times for static use. Follow the manufacturer's specifications at all times.
Q: What is the recommended maximum pulling tension during installation?
A: It is normally 80-100N for manual pulling; in the case of long-distance pulling, utilize a tension meter to avoid over-tensioning.
Can FTTH drop cable be installed in high or low temperature environments?
A: Yes, only if within the specified operating temperature range (for instance, -20°C and +70°C). When the weather is freezing, avoid sharp bending and strike.
Q: Is FTTH drop cable UV-resistant for outdoor use?
A: Outdoor-rated drop cables generally possess UV-resistant jackets. Additionally, protection like conduit should be utilized for long-term exposure.
Q: Is FTTH drop cable suitable for bridges, tunnels, or ducts?
A: Certainly, if not using the wrong model such as the unarmored type or with non-LSZH jacket, and taking all precautions to ensure no part is under stress due to mechanical compression.
Q: How to design the optimal cable routing path to minimize signal loss?
A: Preferably with straight paths incorporated with gentle curves and to keep away with the tight bends, sharp corners and the unsupported spans of long lengths.
Q: Can drop cable be installed directly in metal or PVC conduits?
A: Yes, but check that the conduit is clean and smooth. To make the cable installation easier, apply cable lubricant to reduce friction for long runs.
Q: What’s the best way to protect the cable when passing through walls or floors?
A: Employ the use of wall bushings or conduit sleeves for any abrasion and stress points during entry/exit.
Q: How should the cable be secured on exterior walls exposed to wind and rain?
A: Use UV-resistant clamps at intervals and secure with cable ties or clips that can stand outdoor conditions.
Q: How much cable slack should be reserved at the termination point?
A: Keep it 30 – 50 centimeters of slack to provide for re-termination or future maintenance.
Q: What are the best fixing accessories for FTTH drop cable?
A: Select specifically sub-type insured FTTH clips, brackets, or adhesive mounts. Preferably avoid the use of metal staples or nails because they are vulnerable to cable damage.
Q: Can reusable clips be used for indoor cable fixing?
A: Definitely, but the risk for the cable pressure remains. Also, clips that allow cable slippage can also cause cable damage.
Q: How to make the cable path aesthetically pleasing in indoor areas?
A: One may consider the use of plastic trunking, corner covers or run the cables at the furniture edges where possible.
Q: How to secure cables on bridges or utility poles?
A: Stainless steel bands or spiral wraps are available for fastening cables on bridges and utility poles; selecting the latter type ensures proper strain relief.
Q: What protection should be used at sharp corners?
A: Employ corner guards or flexible united seamless tubes to maintain the correct bend radius or prevent crushing.
Q: How to properly strip the cable jacket and buffer layer?
A: Take the dedicated fiber optic strippers and use three processes, cut off the buffered tube, remove the coating, and repair the damage if any is caused the fiber core.
Q: How to handle the FRP or metallic strength member in the drop cable?
A: Strain the exposed part with appropriate tools, ensure there are no splinters, and properly isolate it with insulation tape or enamel.
Q: What are the risks of improper fiber cleaving?
A: It could impede good signal reflection, or cause excessive insertion loss; which in turn would place the links at the situation of unreliable connections.
Q: Why do SC/APC connectors sometimes fail during field termination?
A: Their common reasn are improper fiber utilization, necking of the fiber caused by dirt contamination, and incoherent orientation during the insertion phase.
What is the difference between mechanical and fusion splicing for drop cable?
A: Mechanical is speedy and tool-free, yet less durable, and fusion is of higher quality but needs the use of proper tools and has long-term reliability.
Q: How to clean the fiber end-face before termination?
A: The best strategy is to use lint-free nonalcoholic products or fiber cleaning tools for this purpose.
Q: How to prevent dust contamination at field sites?
A: Employ the use of thread caps for the fiber connectors, and make sure you work in a covered area whenever possible.
Q: What if the fiber end-face test fails?
A: Just re-clean, re-cleave, and re-terminate afresh. Utilize an end face inspection scope in order to tell the level of cleanliness and fitting finish.
Q: How to check if the signal loss is within acceptable limits?
A: Employ an Optical Power Meter with a light source or OTDR for confirming the insertion and return loss.
Q: What equipment is essential for testing FTTH drop cable?
A: A single fiber, OTDR, optical power meter, VFL (Visual Fault Locator), fiber-microscope, and technical tests for connectors.
Q: Is electrical isolation required when installing FTTH drop cable?
A: Extraction of electric field not being necessary, given the optical nature of the fibers, however, all local wiring and constructing rule structures should be your focus.
Q: Is working at height a concern for drop cable installation?
A: This is true. Adhere to safety precautions, wear harnesses, ladders, and PPE best suited for high installations.
Q: Can drop cable be installed alongside power or low-voltage cables?
A: Ensure proper distance (usually 30 – 50 mm) of cables (usually with power), otherwise you may encounter EMI or physical Interference.
Q: Do installers need special training or certification?
A: Not necessarily, but it takes training to ensure no improper handling and transmission of substandard service and may take mandatory certification for telecom contracts.
Q: How to document and maintain cable installation records?
A: Maintain power detailed documents and pictures of cable routes, test results, connector types, and maintenance logs.
James is a technical manager and associate at Zion Communication.
Specializes in Optical Fiber communications, FTTH Solutions,
Fiber optic cables, ADSS cable, and ODN networks.
james@zion-communication.com
+86 13777460328
