Unitube Design

Smartcore Duct Cable -

Unitube Design


 

Duct Cable is designed to be pulled into ducts in service ducts of an optical cable communication network. Its non-metallic characteristic enables it to be installed in an environment where there is electrical interference, for example alongside power lines. The cable design is available in unitube (up to 24 loose fibres), multitube (up to 144 fibres) fibre ribbon cable (48 to 576 fibres). The design is lightweight and flexible and able to withstand normal installation forces of strain, crush, bend and twist. Aramid or glass yarn can be added for extra axial pulling strength and glass yarn or polyamide can be used as protection against rodents.

   
D-12/SM/UT (4F&G) MFP-B7.5







Cable Codes Construction
 
  • D    - Duct
  • SM - Single Mode
  • UT  - Unitube
  • F    - FRP rod
  • G    - Glass Yarn
  • MF - Metal free
  • P   - Polyethlene
  • B   - Black

Application
  • Backbone network routes
  • Telecommunication and data trunk
  • Secondary distribution
  • Placement in ducts or on cable trays
The loose tube containing optical fibres and jelly is centrally placed. Non- metallic strength members (FRP) are embeded in the HDPE sheath for protection and strength.
Meets IEC 60794, EIA/TIA, ITU-T, EN 1870000, RUS 1755.900 & TElecodia GR-20

  • Strength elements - 4 FRP rods embeded in the sheath & water- swellable E-glass yarns (WB) or loose tube or buffer tube.
  • Outer PE sheath - Sheath colour black.
  • Fibre colour - blue, orange, green, brown, slate, white red, black, yellow, rose, violet & aqua, all 12 colours. 2 bundles of 12 fibres each in case of 24 fibres.
  • Tube colour - Natural Other tube colour available on request.
  • Sheath colour - Black
  • Packing on reels
Environmental conditions
Temperature ranges for installation and assembly -5oC + +40 oC
Operation temperatures -30oC + +70 oC
Transport and store temperatures -40oC + +70 oC
Minimum bending radius Min. 10 D
D- cable outer diameter  
On Demand
  • Nylon/LSZH/FRPE as outr Jacketing Available
  • Fibre options: SM (G652B/D, G655 & G657), MM (OM1, OM2 & OM3)
  • Rip Cord is optional
  • Composite of various types of fibres (SM & MM)
  • Customized designs are available on request

Fibre count

Diameter (mm) Nominal

Weight (kg/km)
Nominal

Tensile Strength
(N)

Crush
Resistance (N/10cm)

Bending Radius
(mm)

Standard put-up length
(m)

     

Max. Load (Installation)

Operating
(Long term)

 

Temporary (10 x D of Cable dynamic)

Temporary (20 x D of Cable static)

 

12 fibres

7.5

46

1000

500

2000

75

150

2000/4000

24 fibres

9.0

68

1000

500

2000

90

180

2000/4000

       

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