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Coaxial Cables
Relemac Technologies Pvt. Ltd. has the central conductor of solid stranded
bare which electrolytic graded of 99.97% pure copper. The secondary
conductor is specially designed with poly-aluminium tape, applied
longitudinally which overlaps and is bonded on the foam dielectric.
Aluminium alloy wires with high tensile strength are braided and
applied for the aluminium tape with specified coverage. The cable is
then jacketed with a special long lasting UV resistant PVC compound.
Following are the details of Coaxial Cables.
500 Series Cable
500 Series Cable Construction & Dimensions |
|
Component
|
Standro
|
Trishield
|
QuadShield
|
|
Diameter
of Inner conductor (mm)
|
2.77
± 0.03
|
2.77
± 0.03
|
2.77
± 0.03
|
|
Diameter
of Dielectric (mm)
|
11.5
± 0.30
|
11.5
± 0.30
|
11.5
± 0.30
|
|
Diameter
of 1st outer conductor <= (mm)
|
11.90
|
12.80
|
12.80
|
|
Thickness
>=
|
/
|
0.64
|
0.35
|
|
Diameter
of 2nd outer conductor <= (mm)
|
12.20
|
/
|
/
|
|
Diameter
of Jackets <= (mm)
|
15.00
|
15.40
|
15.20
|
|
Approximate
Weight (Kg / Km)
|
120(170)
|
174
|
144
|
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Diameter
of messenger steel wire (mm)
|
2.77
|
2.77
|
2.77
|
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Steel
wire weight (Kg / Km)
|
47
|
47
|
47
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Note
- Material of 1st out conductor is bonded foil,
non-bonded foil, Thickness of extruding Aluminium tube is 0.64mm.
- Thickness of welding Aluminium tube is 0.35mm.
- Coverage of 2nd outer conductor is 40%, 50%, 60%. We
can provide special demand for client.
500 Attenuation
 |
|
Frequence(Mhz)
|
Max Value
(dB/100m)
|
|
5
|
0.60
|
|
50
|
1.90
|
|
55
|
2.05
|
|
200
|
3.90
|
|
211
|
4.03
|
|
300
|
4.80
|
|
400
|
5.60
|
|
450
|
5.90
|
|
550
|
6.70
|
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600
|
7.06
|
|
750
|
7.90
|
|
800
|
8.32
|
|
860
|
8.46
|
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1000
|
9.20
|
|
1350
|
10.90
|
|
1750
|
12.41
|
|
2150
|
13.26
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500 Electrical Performance
|
DC Resistance of
Inner Conductor (ohms/km)
|
4.6 CCA 2.9BC
|
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DC Resistance of
Outer Conductor (ohms/km)
|
19 AL
12TC
|
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Impedance (ohms)
|
75±2.0
|
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Capacitance(pF/m)
|
50±3.0
|
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Wave velocity rate%
|
86%
|
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Return
Loss (>=db)
|
VHF 5-300 MHz >=
|
20dB
|
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UHF 300-960 MHz >=
|
18dB
|
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Coaxial
Cables
