The LadonX™ 5–50 Pair 0.5mm Outdoor Multipair Telephone Cable is designed for underground telecom networks requiring reliable voice and low-frequency signal transmission. Its fully filled twisted-pair construction combines copper conductors, moisture protection and a fire-retardant outdoor sheath.
Key Features and Benefits
- Available in 5, 10, 20 and 50-pair configurations for different telecom network capacities
- Twisted-pair construction with annealed copper conductors for telephone and low-frequency signal transmission
- Foam-skin polyethylene insulation supports consistent electrical performance
- Synthetic jelly filling helps protect the cable core against moisture ingress
- Longitudinally overlapped APL tape provides an additional moisture barrier
- Black fire-retardant polyethylene outer jacket for underground outdoor installations
Technical Data
Number of Pairs
5/10/20/50
Conductor
99.9% pure annealed copper
Insulation
Foam skin polyethylene
After Insulation OD (Nom.)
0.9mm
Core Wrapping
A continuously protective layer of tape is lapped helically
Identification Tape
Transparent polyester tape with black words
Rip Cord
Two nylon yarn are placed horizontally
Water Resistant Compound
Synthetic jelly filling compound
Moisture Barrier
Single layer longitudinally overlapped APL tape
Thickness of Aluminum Tape (Nom.)
0.2mm
Thickness of Plastic Layer (Nom.)
0.05mm
Overall Cable Diameter (Nom.)
8.1/10.1/12.8/17.4mm
Electrical Characteristics
| Max. Conductor Resistance at 20°C |
95Ω/km |
| Intrinsic attenuation at 20°C |
Average value |
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| Elongation |
≥15% |
| Resistance Unbalance |
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| Độ Bền Điện Môi |
Core to core
1.0 kV DC/1min.
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Core to screen
3.0 kV DC/1min.
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| Capacitance unbalance at 0.8 kHz or 1 kHz (nF/KM) |
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| Core to screen |
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| Working capacitance at 0.8 kHz or 1 kHz (pF/KM) |
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| Min. Insulation Resistance at 20°C |
3000 MΩ·km |
Sheath Mechanical and Physical Characteristics
Tensile Strength
≥0.8 kgf/mm²
Stress Cracking
≤2/10 failure
Vertical Flame Spread
50 < L ≤ 540mm
