PLB HDPE Ducts

BSNL GR- GR/CDS-08/02 Nov, 2004

PLB HDPE Ducts

CONSTRUCTION : PLB HDPE DuctsTijaria Permanently Lubricated HDPE Ducts are formed by co extrusion technique and are used for laying Optical Fiber Cables as under ground ducting / conduits.

MATERIAL : The base raw material being used for the manufacturing Permanently Lubricated Ducts is High Density Poly Ethylene. The grade of raw material is ultra violet grade and is confirming to IS:7328-1992 & IS : 2523 or ISO : 1183 & ISO : 1133 and is designated as PEELA-50T-012 (CACT Approved) and inner layer permanently lubricated material DOW CORNING grade-50MB002.

APPLICATIONS : Telecommunication, Computer Network, Automatic Signaling, Railways Information Network. Highways, Cable Service Providers, Broad Band networks, Electric cable installation etc.

PROPERTIES

  • Reduction of stress on cable during installation.
  • Installation of Longer lengths made feasible.
  • Negotiations of cable movement through bends and deflections are easier.
  • Reduction of number of joints and minimizes number of splices.
  • Faster and easy installation of cable with lesser man power.
  • Reduction of overall cost of installation, maintenance and future upgrades.
  • Retains it's properties throughout it's life.
  • Existing cables can be deployed after de-blowing from the duct.
  • This does not have toxic and dermatic hazards and is safe handling.
S.No. Duct Size Outer Dia Ovality (Max) Wall Thickness Standard Length
1 32/26 32±0.3 1.3 3.0±0.2 500/1000 Mtrs.
2 40/33 40±0.4 1.4 3.5±0.2 500/1000 Mtrs.
3 50/42 50±0.5 1.4 4.0±0.3 500/1000 Mtrs.
4 63/57 63±0.6 1.5 3.6±0.6 6/12/50/100 Mtrs.
5 75/65 75±0.7 1.6 4.3±0.7 6/12/50/100 Mtrs.
6 90/79 90±0.9 1.8 5.1±0.8 6/12/50/100 Mtrs.
7 110/96 110±1.0 2.2 6.3±1.0 6/12/50/100 Mtrs.
8 We are manufacturing up to 400 mm as per requirement of customer.

Last Update: Jan, 2011

S.No. Test Description Test Method Test Requirement
1 Dimension
(a) Outside diameter
(b) Ovality
(c) Wall thickness
G/CDS-08/02 Nov. 2004, ISO:3126 As per Table
2 Visual Inspection G/CDS-08/02 Nov. 2004, ISO:3126 As per Specifications
3 Density at 23° C GMS/CC IS : 7328, IS : 2330 0.940-0.958
4 Melt Flow Index at 190° C IS : 7328, ISO : 1133 0.2 to 1.1
5 Tensile Strength at yield IS : 14151-Part-1, ISO : 6259 Min 20N/mm2
6 Elongation at Break IS : 14151-Part-1, ISO : 6259 Min 500%
7 Co-efficient of Friction IS : 14151-Part-1, ISO : 6259 <0.06
8 Impact Strength IS : 14151-Part-1, ISO : 6259 No Split or Crack
9 Oxidation Induction time IS : 14151-Part-1, ISO : 6259 >30 Minutes
10 Environmental Stress & Crack Resistance ASTMD-1693 No Split or Crack
11 Heat Reversion IS : 4984 Change < 3%
12 Internal Hydrostatic Pressure creep repture IS : 4984 & ISO : 1167 Passes

Last Update: Jan, 2011


All above mentioned test on PLB HDPE DuCTS are conducted in-house as per DOT Specification No. G/CDS-08/02 Nov.2004 and ISO : 3126

ASSOCIATED ACCESSORIES & TOOLS :

1 Plastic Coupler   : To join two duct lengths- air tight and water tight.
2 End Plug   : To seal duct ends prior to the installation of the cable.
3 Cable Sealing Plug   : To seal duct ends after insertion of the cable.
4 End Cap   : Made of hard rubber, fitted on both ends of duct coil after manufacturing.
5 Duct Cutter   : To cut duct cleanly and with square ends.
6 C Spanner   : To tighten plastic coupler.
Tijaria Polypipes Ltd.

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