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| >> Jelly Filled Polyethlene Telephone
Cables (JFTC) - Foam Skin Insulation |
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- Application: VF
Transmission digital system, Local Network,Public, Private
and Industrial
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- Installation: Direct
Burial in ducts.
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- Construction: The
Cable is made up of:
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- Standards: Generally
Complying to
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 IEC 60708 - 1
BT CW 1236
BTCW 1128
BTCW 1124
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- Conductor : Solid
plain annealed high conductivity copper round wire
of nominal dia 0.32, 0.4, 0.5, 0.65, 0.90 mm. As per
IEC 28 & ASTM B3.
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- Insulation: Foam-Skin extruded Polythene insulation grade stablized.
100% Virigin material and coloured as per requirment
( As per BS 6234 ASTM D 1248).
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- Pair/Quad: Quad
or two coloured insulated conuctors of specified colours
twisted together with pre-dertrmined lay to form a pair.
In orde to minimize the crosstalk.
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- Units(U): 10/20
pairs stranded and a open helical binder of polyester
/ PP/PE Tape of specified colours applied to form a
unit.
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Five Nos. - of 10 pairs twisted together to form
- 50 pair super unit - OR
five Nos. - of 20 pairs units together to form 100
pair super unit.
Each super unit have an open helical blnder of Polyester
/ PP/PE tape of specified colour for identification.
Spares pair added in each super unit as per requirements.
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- Cabling/Filling: For cables above 100 pairs cable the required number
of super units are stranded to form a cable core.
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The cable core is fully filled
with jelly (water resistance compound) which is compatible
with the insulation.
The filled cable core is wrapped with a tape and
the flodding compound is applied.
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- Screen: A alminium
tape coated both side with polythene is applied
longitudinally with overlap over the cable core.
The laminated alumium tape is sealed at the overlap
to prevent moisture.
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- Sheath: The cable
is sheated with Virgin black polythene compound and
confirming to the requirment of the specification.(ASTMD
1248
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for Technical Data |
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