• Cable External Jellyfilled Screened Unarmoured 200Pr 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-proofnes
  •  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 polyolefi­n conforming to ASDM D1248 to BS 6234 Type 03

Cable Assembly

Twisted pairs, cabled into sub-units, cabled in a circular form

Color Code

As indicated below

Filling
Compound

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

Tape wrap

Non hygroscopic polyester tape, wrapped with 30% overlap

Identi­fication
tape

A suitable tape, durably marked with the manufacturer’s name, year of
manufacture and type of cable is placed under the core covering

Flooding
compound

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

Screen ( Shield)

Copolymer coated aluminum foil having thickness of 0.3mm, bonded to
the outer jacket, conforming to ASTM B736

Outer Jacket

Black PE compound


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

White

7

Red

8

Black

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Cable External Jellyfilled Screened Unarmoured 200Pr 0.5mm

  • AED 56.29


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