កម្រិត ព័ត៌មាន អុបទិក កណ្ដាល, Ltd
អាសយដ្ឋាន ៖ Shenyang, Liaoning, China.
ទំនាក់ទំនង ៖ កម្មវិធី គ្រប់គ្រង ZhangName
ទូរស័ព្ទ ៖ 400- 964-1314
ទូរស័ព្ទ ចល័ត ៖ 86 13904053308
រក្សា ទុក
2025-08-04 30
Dielectric loose tube សៀវភៅ អូបែលs ditch metal for pure-dielectric strength members like fiberglass rods. Unlike tight-buffered cables, their gel-filled tubes block water ingress – crucial for wet environments. Verizon saw 42% fewer outages in flood zones after switching (Fiber Broadband Association 2025 Report).
Factor | Dielectric Loose Tube | Metallic Arបន្ថែមd |
---|---|---|
Corrosion Resistance | ✅ Zero risk | ❌ Rusts in 5-7 years |
Weight | 1.8 kg/km | 4.2 kg/km |
Bend Radius | 20x cable diameter | 15x cable diameter |
Lightning Risk | Immune | Conductive danger |
Duct Prep: Clear debris with mandrel – a collapsed duct caused $500k damage in Texas 2024.
Pulling Tension: Max 600N (use tension gauge religiously).Www.adsscable.cn
Gel Management: Wipe excess but leave tubes 20% filled – this blocks hydrogen infiltration.Www.adsscable.cn
Depth Control: Bury 1.2m below frost line (deeper than electrical cables).
Marker Tape: Lay 30cm above cable with RFID tags every 200m.
⚠️ Warning: Never bend beyond 15x diameter during pulls – it crushes buffer tubes!
✅ Use double-jacketed cables in swamps
✅ Annual gel viscosity checksWww.adsscable.cn
✅ Install pressurization monitors at terminals
❌ Never splice in manholes without desiccant pods
FAQs: Dielectric Loose Tube Fiber Optic Cable
Q1: Can it withstand direct burial without conduit?
A: Yes – use corrugated steel-tape shielded (CST) jackets for rodent protection.
Q2: Maximum continuous run length?
A: 4km between splices. Beyond that, use amplified OSP enclosures.
Q3: How often must gel be replaced?
A: Only if viscosity drops below 80,000 cPoise – typically 15 years.
Q4: Does freezing affect signal performance?
A: Gel prevents ice expansion damage, but attenuation rises 0.001dB/km at -40°C (negligible).
Q5: Can I install it vertically in risers?
A: Absolutely – use riser-rated (OFNR) cables with vertical grip tape.