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144188195215245280

Vindhya Telelinks Limited

Navi Mumbai, Maharashtra

| GST  27AAACV7757J1ZS

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Copper Cables

Manufacturer of a wide range of products which include Foam Skin Solid Pe Insulated Jelly Filled Telephone Cable, Self Supporting Aerial Figure 8 Type Telephone Cable, Underground Jelly Filled Quad Cables, Signaling Cables, Jumper Wire and Electroplated Tinned Copper Wire.

Foam Skin Solid Pe Insulated Jelly Filled Telephone Cable
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Application
  • Local distribution networks - Primary & Secondary
  • Junction between exchanges

Cable Construction Details
Conductor Conductor - Each conductor consists of a round wire of annealed high conductivity copper.
Insulation Each conductor is insulated with Foam Skin / Solid PE insulation. Foam Skin insulation consists of an extruded inner layer of uncoloured foam, covered by an extruded outer layer of coloured skin with required colours to meet the specification. For Solid insulation each conductor is insulated with Solid medium/high density polyethylene insulation.
Twinning Two insulated conductors are twisted with uniform lay to form a pair. The length of the lay of the pairs is so choses that the cross talk is minimum.
Units & Super Units No's of twisted pairs are laid up to form a group which constitutes a unit.
Stranding Twisted pairs/ super units are stranded to form a cable core.
Filling The cable core is fully filled with water resistant compound which is compatible with the polythene insulation of the conductors.
Core Wrapping & Screening The filled cable core is wrapped with at least one helical or longitudinal plastic tape. Thereafter one aluminium tape, coated with copolymer on both sides is applied longitudinally over the cable core with a specified overlap.
Sheathing The screened cable core is sheathed with black polythene compound grade 03C as per BS:6234.
Bedding tape If the cable is required to be armoured, two helical lapping of polythene bedding tape is applied over the polythene sheath.
Armouring The cable is then armoured with two applications of galvanized steel tape each applied helically with a specified gap. The second tape covers the gap left by the first tape.
Jacketing The armoured cable is finally jacketed with black polythene compound grade 03C of BS:6234.

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Self Supporting Aerial Figure 8 Type Telephone Cable
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Application
  • Suitable for Aerial Installation
  • Local distribution networks - Secondary networks

Cable Construction Details
ConductorEach conductor consists of a round wire of annealed high conductivity copper.
InsulationEach conductor is insulated with solid medium/high density polyethylene insulation.
TwinningTwo insulated conductors are twisted with uniform lay to form a pair. The length of the lay of the pairs is so chosen that the cross-talk is minimum.
Units & Super Units10 or 20 No's of twisted pairs are laid up to form a group which constitutes a unit. Each unit should have an overlapping for color ID. In case of cables having more than 100 pairs, 5 units of 10 pairs or 20 pairs are laid up to constitute 50 or 100 pairs of super units respectively.
StrandingFor cable upto 20 pairs the required number of twisted pairs are stranded to form a cable core. For cables having 50 and 100 pairs, 5 numbers of 10 pair or 20 pair units are stranded to form 50 and 100 pair cables respectively. For cables having higher than 100 pairs, required number of super units are stranded to form a cable core.
Core Wrapping & ScreeningThe cable core is wrapped with at least one helical or longitudional plastic tape. Thereafter one aluminium tape ,coated with co-polymer on both sides is applied longitudinally over the cable core with a specified overlap. The tape is sealed and bonded to the inner surface of the polythene sheath.
Suspension Wire / StrandA Suspension Wire / Strand is provided.
SheathingThe screened cable core along with suspension wire as an integral part with the cable is sheathed with black polythene compound to form figure-8

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Underground Jelly Filled Quad Cables
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Application
  • Axle counter
  • Signalling

Cable Construction Details
Conductor Round wire of annealed high conductivity copper
Insulation Each conductor is insulated with solid PE
Quadding Four insulated conductors stranded to form a star quad.
Laying Up The quads are assembled to form a symmetrical core with a right hand lay. Polyethylene strings of required diameter may be used as fillers, if necessary.
Filling & core wrapping The cable core is fully filled with water -resistant compound and wrapped with polyethylene.
Moisture Barrier Aluminium tape coated with co-polymer on both sides is applied longitudinally over the cable core with a specified overlap.
Sheathing The screened cable core is sheathed with black polythene compound as per BS:6234.
Screening & protection The cable core with inner sheath is surrounded by a reasonably close fitted screen of Aluminium in the form of wires/ strips . The aluminium screen is wrapped with a single layer of woven tape impregnated with Barium chromate with overlap.
Intermediate sheath Further protection of screening is provided by extruded PVC/PE sheath over screening.
Armouring Armouring with two applications of Galvanized steel tape each applied helically with a specified gap.
Jacketing The armoured cable is finally jacketed with black PVC/PE compound.

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Signaling Cables
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Signaling Cables

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Application
  • Railway Signalling

Cable Construction Details
Conductor Each conductor shall consist of a solid round/stranded wire(s) of annealed high conductivity copper, smoothly drawn, nominally circular in section , uniform in quality and resistance and free from defects.
Insulation Insulation shall be of PVC Compound conforming to requirements of Type-A compound of IS 5831:1984. Insulation color shall be as per customer specification.
Core Formation The insulated cores shall be laid up together with suitable lay. The outer most layer shall have right hand lay and the successive layers shall be laid with opposite lay. A polyester tape of suitable thickness shall be helically applied normally in cables with double steel tape with suitable overlap.
Inner Sheath The inner sheath shall be of PVC Compound conforming to requirements of Type- ST1 as per IS 5831:1984.
Armouring Armouring shall consist of the either Galvanised Round Wire strip/Double Steel Tape.
Jacket The outer sheath shall be of PVC Compound conforming to requirements of Type- ST1 as per IS 5831:1984.
Features:
  • Availability of conductor sizes ranging from 1.13 mm to 2.80 mm diameter. Cable size ranging from 2 core to 100 cores with 1.0 Sqmm to 50 Sqmm.
  • Suitable for use on AC systems (Earthed or unearthed) for rated voltage upto 1100 volts
  • ?Suitable for use on DC systems for rated voltage upto 1500 volts

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Jumper Wire
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Jumper Wire

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Application
  • Indoor Telephone wiring & Signal distribution

Cable Construction Details
Conductor Each conductor shall consist of a solid round wire of annealed high conductivity copper, smoothly drawn, nominally circular in section , uniform in quality and resistance and free from defects. The quality of copper shall confirm to IEC-28 or IS-12444.
Insulation Each conductor shall be insulated with solid polyethylene.
Pairing Two Insulated conductors shall be twisted together with uniform lay to form a pair.

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Electroplated Tinned Copper Wire
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Application
  • Copper wire armouring & soldering power sectors
  • Screening applications in telecom & signaling cables

Advantages of Electro-tinned Wire Over Hot Dip Tinned Wire
  • Uniform & Controlled Tin coating
  • Better tin bonding with base metal i.e. copper
  • Uniform wire elongation
  • Re-drawable to finer sizes offering flexibility to customer

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