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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.
412 Series Cable
412 Series Cable Construction & Dimensions |
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Component
|
Standro
|
Trishield
|
QuadShield
|
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Diameter of Inner
conductor (mm)
|
2.15 ± 0.03
|
2.15 ± 0.03
|
2.15 ± 0.03
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Diameter of
Dielectric (mm)
|
9.00 ± 0.30
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9.00 ± 0.30
|
9.00 ± 0.30
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Diameter of 1st
outer conductor <= (mm)
|
9.40
|
10.30
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9.70
|
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Thickness >=
|
/
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0.64
|
0.35
|
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Diameter of 2nd
outer conductor <= (mm)
|
9.70
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/
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/
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Diameter of Jackets
<= (mm)
|
12.30
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12.60
|
12.30
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Approximate Weight
(Kg / Km)
|
90(115)
|
145
|
105
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Diameter of messenger
steel wire (mm)
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2.13
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2.13
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2.13
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Steel wire weight (Kg
/ Km)
|
30
|
30
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30
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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
412 Attenuation
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Frequence(Mhz)
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Max Value
(dB/100m)
|
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5
|
0.75
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50
|
2.40
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|
55
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2.52
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200
|
5.00
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211
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5.20
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|
300
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6.20
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400
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7.23
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450
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7.60
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550
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8.50
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600
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9.00
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|
750
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10.10
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800
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10.64
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860
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10.80
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1000
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11.70
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1350
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13.86
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1750
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15.78
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2150
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17.48
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412 Electrical Performance
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DC Resistance of
Inner Conductor (ohms/km)
|
7.9 CCA 4.75BC
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DC Resistance of
Outer Conductor (ohms/km)
|
22 AL
15TC
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Impedance (ohms)
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75±3.0
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Capacitance(pF/m)
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52±3.0
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Wave velocity rate%
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86%
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Return
Loss (>=db)
|
VHF 5-300 MHz >=
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20dB
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UHF 300-960 MHz >=
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18dB
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Coaxial
Cables
