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Telephone & Switchboard Cables
We are so much dependent on the technology that data communication has become the necessity of time. Communication has become easier with the advent of our technology in telephone and data cables.


Telephone & Switchboard Cables
Telephone & Switchboard Cables
1.0 pair to 100 pair Telephone & Switchboard Cables

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Our Telephone & Switchboard Cables are designed for elimination of cross talk and enhance voice clarity. They are most suitable for indoor use in large offices, residential buildings, hotels and industrial complex for better interconnection of telephone and intercom system. They are also suitable for PBX and in-central exchange for interconnection of distribution framer switching and transmission equipments.

High density polyethylene is used for insulating the solid annealed high conductivity bare copper of 0.5 mm diameter. To minimize the cross talk, the insulated cores are twisted and are bunched together to form pairs. The laid up cables are covered with polyester and further jacketed with a fire retardant PVC (grey colour) with high oxygen index. A nylon rip cord is used to provide an effective means of slitting the jacket without harming the insulated cores. The cables generally conform to ITD specifications S/WS 113 C and Kundan specifications.

Prominent Features
Construction

Conductor Insulation Rip Cord Sheath
Material Nominal Diameter (mm) Material Nominal Thickness (mm) Nominal Dia of Insulated Conductor (mm) Material Material Minimum Thickness (mm)
Bright Annealed Pure Electrolytic Tinned Copper 0.50 LDPE 0.20 0.95 Nylon FR PVC with high oxygen and temperature induces 1 pair 0.50
2-8 pair 0.65
10 pair 0.75


Color Combination

No. of Pairs 2 Pair 5 Pair
Pair No- 1 White – Blue White – Blue
Pair No. 2 White – Orange White – Orange
Pair No. 3   White – Green
Pair No. 4   White – Brown
Pair No. 5   White – Grey


Electrical Parameters

Conductor Resistance Max. 92.20 ohm / Km at 200C
Mutual Capacitance Max. 50 nf/ Km
Insulation Resistance in Air Min . 10000 M-ohm / Km
Capacitance Unbalance Pair to Pair Max. 250 pf/ 100 m

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Telephone &
   Switchboard Cables


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