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Pull Test Information

  Cable on Cable vs. Cable in Fabric Innerduct

Test Conditions & Method

Cable Spec
13 mm OD PE Fiber Optic cable

Outer Duct Spec
50 mm ID PE Pipe

MaxCell Spec
2" 2-Cell

Cable Pulling Tension
140 kg

Cable Pulling Speed
25 meters / min

Cable Pulling Duration
10 minutes (equivalent of 250 meter pull)
20 minutes (equivalent of 500 meter pull)
30 minutes (equivalent of 750 meter pull)

Test Method
1) Fix cable within the PE subduct
2) Rotate another 13mm cable over the fixed cable at a fixed speed and tension. Verify the cables cross each other at some point. Check sheath damage; (250m, 500m, 750m)
3) Fix the cable within fabric innerduct. Rotate another 13mm cable through the second cell at fixed parameters

Test Results

Cable on Cable 250m Pass

Cable on Cable 500m Fail

Cable on Cable 750m Fail

Cable in Fabric Innerduct 750m Pass

Pass Fail Criteria : Having no significant external damage on the cable sheath

Cable on Cable
  • Minor abrasion at 250m but significant sheath damage at 500m and 750m
  • Large amounts of PE flaking observed over longer distances
  • Higher pulling tensions and longer pulls may lead to possible signal failure
Cable in Fabric Innerduct
  • Very minor abrasion observed on the sheath
  • Fabric Innerduct showed a small 75mm tear right where the cables crossed but the tear did not expose the cable to any significant damage Note: The cable was in a 10m continuous loop. Because of this loop the MaxCell saw the head of the cable pass over a minimum of 75 times during the experiment
  • Higher pulling tensions and longer pulls possible without damage to the cable
Control: Cable Observation Before Test

Control: Cable Observation Before Test

Cable Observation After Test

Cable Observation After Test

Cable Observation After Test

Cable Sheath Flakes