SELF SUPPORTING AERIAL CABLE

  • Overview
  • Specifications
  • Colour Scheme

These cables are used for junction network is exchange area for Aerial installation. These cables are generally based on REA and Pakistan Telecommunication Company Limited Specification.

Cable Constructions:     

       CONDUCTOR 

            Fully annealed high quality solid copper, the conductor sizes are 0.4, 0.5, 0.6 & 0.9 mm.

        INSULATION

            Colour high molecular Weight High-Density Polyethylene (HDPE)

        COLOUR CODING    

            Colour are fully colour coded in accordance with PIC even count colour code.

         PAIRING

   Two coloured insulated conductors are uniformly twisted together to form a pair, Varying lay length is designed to minimize  the cross talk and capacitance unbalance.

          STRANDING UNITING

    Twisted pairs are assembled into unit of 12, 13, 25, 50, 100 pairs, when desired for lay-up reason the units are divided into two or more sub-units, which are bind with durably coloured polyethylene Tapes to from a compact and circular cable.

          CORE COVERING

              The core is wrapped with non-hygroscopic and dielectric polyester Tape with suitable overlap.

          SUSPENSION STRAND

    Extra high strength of galvanized steel wires strands use as a support strand to from the shape as defined in the figure blew.

  JACKET

                 Black High Molecular Weight Low Density Polyethylene (LDPE)

             IDENTIFICATION

        An Identification Tape durable marked with the Manufacturer’s Name, year of Manufacturing,Contract Number, Cable size & Type, if required, is placed under the Core Covering Tape. Alternatively, these details may be printed on the outer jacket of cable with length marking.

 

Construction Parameters
Fiber TypeITU-T G.657
Fiber Count01 or 02 Fibers
Strength Member

FRP (Fiber Reinforced Plastic)

2 x Parallel Robust strength members of are placed at two sides to keep mechanical strength)

Outer Sheath (Material)Low Smoke Zero Halogen (LSZH)
Outer Sheath (Color)White/Black
Outer Diameter of Cable2.0 ± 0.2mm * 3.0 ± 0.2mm (Nominal)
Outer Sheath PrintingManufacturer Name, Year of manufacturing & Type of Cable shall be marked with 1 meter intervals and cable length in running meters
Cable Weight18 kg/km (Maximum)
PackingSuitable Strong Reel
Cutting Length1000 Meter or 2000 Meter ± 5%

 

Optical Characteristics
Single Mode FiberITU-T G.657
Fiber Colour CodingAs per TIA/EIA-598A&C
Mode Field Diameter, μm8.6 to 9.5 ± 0.7
Cladding Diameter, μm125 ± 1
Core Clad Concentricity error, μm≤ 0.8 μm
Cladding Non-Circularity, %≤ 2 %
Cable Cut-off Wavelength, nm≤ 1260 nm
Chromatic Dispersion (ps/nm.km)

≤ 3.5 @ 1310nm

≤ 18  @ 1550nm

Cabled Attenuation @ 1310 nm (dB/km)

Cabled Attenuation @ 1550 nm (dB/km)

 

≤ 0.40 (Max)

≤ 0.30 (Max)

Polarized Mode Dispersion (PMD) ps/√km≤ 0.2

 

Mechanical Characteristics

Temperature Range

Operating Temperature

Installation Temperature

Storage & Transportation

 

-20 °C to +70 °C at 100% Humidity

-10 °C to +50 °C

-20 °C to +70 °C

Tensile Strength (N) (Max)

> 500N

Crush Strength (N) (max)

500N/10cm

Cable Bending Test

30mm (Dynamic)

15mm (Static)

 

 


Cross Section self supporting aerial Cable