Accurate prediction of cable pulling tension is essential for the proper design of cable systems. This knowledge makes it possible to avoid under-estimated and/or over conservative design practices to achieve substantial capital savings during construction.
The Cable Pulling study module accounts for multiple cables of different sizes and allows complex 3-D pulling path geometry.
A point-by-point calculation method is performed at every conduit bend and pull point with cable pulling analysis program.
Both the forward and reverse pulling tensions are calculated for determining the preferred direction of cable pulling.
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Key Features
Integrated with one-line diagram cables
Integrated with underground raceways cables
Pull multiple cables
Allow any pull geometry
Full ETAP Cable Library integration
Display 3-D pulling path geometry
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Capabilities
Calculate forward & reverse pulling tensions
Calculate pulling tensions at all bend points
Calculate the maximum tension limited by sidewall pressures
Calculate the maximum allowable pulling tension
Calculate the conduit percent fill
Calculate the total length of run (pull)
Compare the maximum tension limitations against the calculated pulling tensions
Evaluate possible conduit jamming
Allow segments to have non-zero slopes as well as horizontal bends (non-planer segments)
Account for the equivalent tension for cables pulled from reels
Provide tolerance for cable weights & outside diameters
Provide reduction factors for calculating allowable tension when pulling multiple cables
Cradled & triangular cable configurations
Summary & alert windows
Reporting
Fundamental cable pulling study results
Flag cable tensions that exceed limits
Flag conduit percent fill limits
Flag non-conforming NEC code requirements
Graphical display of cable pulling analysis results
