Cable pushing and calculation of pulling tensions for distribution and transmission cables. Final report
Technical Report
·
OSTI ID:402409
Cable installation in conduit is typically accomplished using traditional pulling techniques. The design procedures and limitations of this technique are well understood. Design equations have been developed which describe the resulting tension variations with an acceptable degree of accuracy as cable is pulled into a conduit system. This project investigates the possibility of pushing cable to reduce the tensions encountered during a cable installation. A cable pushing device was designed, constructed, and evaluated to determine the characteristics of such a device. In the course of the project, investigators considered possible design improvements to the device and evaluated limitations to the pushing technique. Characterization of the pusher and of cable physical properties significant to pushing were determined in the preliminary phase of the test program. In addition, the Rifenburg installation design equations were evaluated to determine the changes necessary to cover cable pushing. An effort was made to develop equations and techniques which could be used to model cable installations involving a combination of pushing and pulling. The techniques developed were confirmed through push/pull testing using a variety of cable designs and conduit configurations in a full scale duct bank configuration. Results of the test program and modeling effort are reported in this document. As a means of assisting either the pushing or pulling process, the effect of vibrating the cable on the forces required during a cable installation was investigated. Vibration was applied using an in-line, pneumatically driven vibration device.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (United States); Georgia Power Co., Forest Park, GA (United States). Research Center
- Sponsoring Organization:
- Electric Power Research Inst., Palo Alto, CA (United States)
- OSTI ID:
- 402409
- Report Number(s):
- EPRI-TR--106500
- Country of Publication:
- United States
- Language:
- English
Similar Records
CABLE PULLING TENSION
EPRI research shows longer pulls now feasible for pipe-type UG transmission-cable installations
Committee report - Recommended practice on specific aspects of cable installation in power-generating stations
Technical Report
·
Mon Jul 24 00:00:00 EDT 1995
·
OSTI ID:875322
EPRI research shows longer pulls now feasible for pipe-type UG transmission-cable installations
Journal Article
·
Wed Jun 01 00:00:00 EDT 1983
· Electr. Light Power; (United States)
·
OSTI ID:5673486
Committee report - Recommended practice on specific aspects of cable installation in power-generating stations
Journal Article
·
Sat Jul 01 00:00:00 EDT 1989
· IEEE Trans. Power Del.; (United States)
·
OSTI ID:5998179