• Cable External Jellyfilled Screened Armoured 10Pr 0.5mm

General Description

  • Telephone Cable with cellular polyethylene insulation, jelly filled with petroleum jelly and a  polyethylene coating.
  •  For use in the Local Distribution network.
  • Insulated conductors uniformly twisted together to form a pair.
  • The water resistant filling compound is applied to the air spaces within the cable core to provide the water-proofness.
  •  Wrapping is applied over the cable core.
  •  A flat aluminium foil coated with copolymer on both sides is applied longitudinally over the core covering as screen.
  •  Black linear-low density polyethylene compound is extruded over the screen.

Physical Description

Conductors

Solid annealed bare copper conductors conforming to CCITT Yellow
Book Vol. III – 2-G.541 b article, IEC 28 and ASTM B3

Insulation

Foam–skin polyethylene

Cable Assembly

Twisted pairs ,cabled in a circular form

Color Code

As indicated below

Filling
Compound

Water resistant ­lling compound, applied to the gaps between the pairs

Tape wrap

Non hygroscopic polyester tape, wrapped with 25% overlap

Identi­fication
tape

Manufacturer name and year of manufacture

Flooding
compound

Water resistant flooding compound , applied between the core wrap and
the aluminum foil

Screen ( Shield)

Two side Copolymer coated aluminum foil laid longitudinally, bonded
to the outer jacket, conforming to ASTM B736. Minimum thickness of Aluminum 0.150mm

Inner Sheath

Black Low Density PE

Armouring

Galvanized steel wire armouring

Outer Sheath

Black Low Density PE

Surface Marking

Telephone symbol, length marking, telephone symbol


Mechanical Parameters of basic conductors

Nominal Conductor Diameter (mm)

0.5

Maximum Conductor Diameter (mm)

0.51

Minimum Conductor Elongation, %

15

Insulated Conductor diameter (mm)

0.9

Insulation ultimate tensile force minimum (N)

2


Electrical Properties

DC resistance @20˚C Ohm/km Maximum Average

91

DC resistance @20˚C Ohm/km Maximum for 1% of cases

96

Mutual Capacitance nF/km, max Average

53

Mutual Capacitance nF/km, max for 1% of cases

60

Pair to pair capacitance unbalance, pF max

275

Insulation Resistance, 500V DC Minimum Mohm.km

1500

Colour codes of unit

Pair No

Colour of conductor insulation

 

A – wire

B – wire

1

White

Blue

2

White

Orange

3

White

Green

4

White

Brown

5

White

Grey

6

Red

Blue

7

Red

Orange

8

Red

            Green

9

Red

Brown

10

Red

Grey

 

Colour codes of tape lappings, Unit

1

Blue

2

Orange

3

Green

4

Brown

5

Grey

6

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Cable External Jellyfilled Screened Armoured 10Pr 0.5mm

  • AED 7.09


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