Application
The cables are telecommunication cables for tunnel application. The cables are halogen free fi re resistant, inductive protected and armoured.
Standards
● Fire retardant: NBN C 30-004 F2
● Fire resistant: NBN 713-020 Add.3. -RF 1h
Construction
Conductors
Solid copper conductor, 0.5mm² nominal cross section area.
Insulation
Mica-tape + LSZH insulation.
Cabling Element
Four conductors are twisted to form a quad.
Stranding
Quads are helically stranded in concentric layers.
Core Wrapping
Plastic tape(s) with overlapping.
Inner Sheath
LSZH sheath.
Screen
Copper tape screen.
Intermediate Sheath
LSZH sheath.
Armour
Two layer of steel tape.
Outer Sheath
LSZH sheath.
Electrical Characteristics at 20℃
| Nominal Conductor Diameter |
mm |
0.8 |
| Nominal Cross Section Area |
mm² |
0.5 |
| Nominal Insulation Thickness |
mm |
0.5 |
| Maximum Conductor Resistance (DC) |
Ω/km |
36.7 |
| Minimum Insulation Resistance |
MΩ.km |
100 |
| Maximum Capacitance |
nF/km |
120 |
| Voltage Test 2 mins |
KVac |
0.5 |
Mechanical and Thermal Properties
Minimum Bending Radius: 10×OD
Temperature Range: -40℃ to +60℃ (during operation); -10℃ +60℃ (during installation)
Dimensions And Weight
Cable Code |
No. of
Quads |
Nominal Sheath Thickness
mm |
Nominal Overall
Diameter
mm |
Nominal Weight
kg/km |
Inner |
Inter. |
Outer |
0.8mm Conductor, 1.8mm Insulated Wire |
| RS/MD4-HH(K)HBH-7Q0.8-FR |
7 |
1.0 |
1.0 |
1.8 |
30.7 |
1074 |
