JFTC

Telephone & Switchboard Cables

Telephone & Switchboard Cables are best suited for telephone and switchboard cabling applications. The conductor is made of solid annealed, high conductivity bare copper conductor with nominal diameter of 0.4 & 0.5 mm. (Telephone Cables with conductor diameter 0.6 mm or 0.7 mm can also be provided on request). The conductor is insulated with special grade high density polyethylene with different colors. The insulated cores are twisted with uniform lay to form pairs which are bunched together in such a manner so as to minimize cross talk. The laid up cables are taped with polyester tape and jacketed with grey colour Fire Retardant PVC with high oxygen and temperature index specially formulated in-house. A nylon rip cord is provided for easy peeling of the jacket. Telephone & Switchboard Cables are recommended for switchboard and internal telephone wiring in multi-story buildings, offices, factories, hotels, hospitals and residential complexes etc. These cables generally conform to ITD specifications S/WS 113C. Armoured Telephone & Switchboard Cables are also available.

Stringent quality control from raw material to finished goods stage coupled with our R&D efforts ensure high quality and consistent performance.





Salient features :

  • Low Attenuation
  • Low Cross Talk
  • Fire Retardant Jacket

  • Construction Parameters
    conductor Slze . 0.4 mm
    conductor Slze . 0.5 mm
    Conductor
    Solid annealed bare copper
    Solid annealed bare copper
    Insulation Material
    High density polyethylene
    High density polyethylene
    Insulation Thickness
    Average 0.20 mm
    Average 0.20 mm
    Diameter of insulted Conductor
    Maximum 0.82 mm
    Maximum 0.92 mm
    Rip Cord
    Nylon
    Nylon
    Jacket
    FR PVC with high oxygen index
    FR PVC with high oxygen index

    Approx. Outer diameter
    Conductor Slze . 0.4 mm
    Conductor Slze . 0.5 mm
    1 Pair
    2.10 mm
    2.75 mm
    2 Pair
    3.10 mm
    3.50 mm
    3 Pair
    3.30 mm
    4.0 mm
    4 Pair
    3.70 mm
    4.70 mm
    5 Pair
    4.0 mm
    5.50 mm

    Color Combination

    1 Pair

    2 Pair
    3 Pair
    4 Pair
    5 Pair
    1 Pair
    White - Blue
    -
    -
    -
    -
    2 Pair
    White - Blue
    White - Orange
    -
    -
    -
    3 Pair
    White - Blue
    White - Orange
    White - Green
    -
    -
    4 Pair
    White - Blue
    White - Orange
    White - Green
    White - Brown
    -
    5 Pair
    White - Blue
    White - Orange
    White - Green
    White - Brown
    White - Grey

    Electrical Parameters
    Conductor Slze . 0.4 mm
    Conductor Slze . 0.5 mm
    Contuctor Resistance
    Max. 143.00 Ohms / Km at 20°C
    Max. 92.20 Ohms/Km at 20°C
    Mutual Capacitance
    Max. 50 nf/Km
    Max. 50 nf/Km
    Insulation Resistance
    10000M - Ohms/Km
    10000M - Ohms/Km
    Capacitance Unbalance Pair To Pair
    Max. 250 pF/Km
    Max. 250 pF/Km

    Cond. Dia                         0.4mm (nom.)
    Conductor Resistance     143 Ohm / km (Max)
    Insulation thickness         0.2mm (mom)
    Cond. Dia                         0.5mm (nom.)
    Conductor Resistance     92.2Ohm / km (Max)
    Insulation thickness         0.2mm (mom)
    Cond. Dia                         0.6mm (nom.)
    Conductor Resistance     64 Ohm / km (Max)
    Insulation thickness         0.2mm (mom)
    Pair  
    Sheath Thik
    (min.)
    O.D. (Max.)
    Sheath Thik
    (min.)
    O.D. (Max.)
    Sheath Thik
    (min.)
    O.D. (Max.)
    1
    0.60
    3.2
    0.60
    3.5
    0.60
    3.7
    2
    0.60
    4.2
    0.60
    5.3
    0.60
    5.6
    3
    0.60
    4.8
    0.60
    5.6
    0.60
    6.6
    4
    0.60
    5.4
    0.60
    6.1
    0.60
    7.0
    5
    0.60
    5.8
    0.60
    6.6
    0.60
    7.6
    6
    0.60
    6.2
    0.60
    6.8
    0.60
    7.8
    10
    0.60
    7.2
    0.60
    8.6
    0.60
    9.1
    15
    0.75
    8.9
    0.75
    10.1
    0.75
    10.7
    20
    0.75
    10.3
    0.75
    11.2
    0.75
    11.7
    25
    0.75
    10.8
    0.75
    11.4
    0.75
    12.7
    30
    0.75
    11.6
    0.75
    12.6
    0.85
    13.2
    40
    0.90
    12.1
    0.90
    15.0
    1.10
    16.2
    50
    1.10
    14.4
    1.10
    16.2
    1.10
    18.3
    75
    1.10
    17.0
    1.10
    18.3
    1.30
    21.1
    100
    1.40
    20.0
    1.40
    22.8
    1.40
    24.6
    200
    1.80
    27.9
    1.80
    32.4
    1.80
    35.6


    For more information, visit Manibhadra Electricals (www.manibhadra.net)
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