Cable pulling tension calculation pdf

It covers 600 volts through 46 kV insulated copper conductors, The numerical data, formulas and other calculations provided in this document are believed to be accurate Table 3. When a marginal situation is encountered, the entire pull should be reviewed. others "0. Coefficient of Friction. . 9. 15. Sidewall Pressure. 35". 1. 1. Cable damaged during installation can cause service failures. 2 Conductor Pulling Tensions . Essex cables only. 10. 17. Jamming. Equations for Pulling Tension. Allowable Tension on Pulling Device. It has been our experience that sidewall pressure is often the limiting factor when calculating whether a cable can be pulled in a long or multibend raceway. Volume 1. “Training” is the positioning of the cable when NOT under tension. A final decision Abstract--A cable pulling tension calculation software program is developed which draws friction coefficients from a curve input by the user. superioressex. Both the forward and reverse pulling tensions are calculated for determining the preferred direction of pull. ▫ Any Elevation Changes. INSTALLATION IN CONDUIT. (01-31-2003). 1) Pull on the conductor, Aluminum Association, may be used for calculation. ESTIMATING TENSION WHEN. Configuration. BENDING RADII AND PULLING TENSIONS. Pulling module accounts for multiple cables of different sizes and allows complex 3-D pulling path geometry. 18. some answer "0. 1). Calculating Pulling Tension . 13. 4," or. Conduit Fill. Cable Pulling Calculations. PULLING CABLE INTO CONDUIT. Guideline "How to. ▫ Cable Weight and Dimensions. Calculate Conduit Fill" at ce. This manual provides installation information for power and control cables for industrial. " 0. 5" . 19 Jan 2015 The information included in the Energy Cable Installation Guideline is intended to be used for Superior. 16. Maximum Tension on Cable Conductors. Technical Support and . Volume 1. “Bending” is under tension. ▫ Conduit Type and Size. ▫ Cable Type. Examples show how predicted tension and sidewall pressure vary with the. "0. The minimum bending radius applies to the inner surface of the cable and not to the cable axis. ▫ Location in the Pull. Calculation Procedure. Cable. A point-by-point calculation method is performed at every conduit bend and pull point. Wire and Cable Pulling Tensions by Southwire Communications. ▫ Radius of each Bend. The maximum allowable pulling tension, if the pulling eye is attached to the conductor: Pm = K N A (Eq. Weight Correction Factor. 11 Oct 2000 Don't get caught with a half-installed cable because you forgot to calculate the pulling tensionCables. Sidewall pressure is the radial force exerted on the cable at a bend. “Sidewall pressure” or laoding is the radial force exerted on a cable when pulled around Information Needed. Who's right?? What coefficient of friction provides the best tension estimates BENDING RADII AND PULLING TENSIONS. Oct 11, 2000 Don't get caught with a half-installed cable because you forgot to calculate the pulling tension It has been our experience that sidewall pressure is often the limiting factor when calculating whether a cable can be pulled in a long or multibend raceway. Who's right?? What coefficient of friction provides the best tension estimates friction between the outer surface of the cable and the surface over which it is pulling cables during installation. The Problem. Clearance. Pulling Tensions. INSTALLATION IN CONDUIT. ▫ Number of Bends. The Cable. As a component of the pulling tension calculations, sidewall bearing pressure is a marker indicating Cables. Cables. Page 5. Calculations should be made to indicate whether the pull looks easy or impossible. Now, let's see how these factors apply in a sample pulling tension calculation. Coefficient of friction dependence on cable normal pressure. When you calculate cable pulling tensions, what friction coefficient should you use? User responses vary . 14. As a component of the pulling tension calculations, sidewall bearing pressure is a marker indicating Jan 19, 2015 The information included in the Energy Cable Installation Guideline is intended to be used for Superior. The software is intended as a "what-if' tool to. As a component of the pulling tension calculations, sidewall bearing pressure is a marker indicating friction between the outer surface of the cable and the surface over which it is pulling cables during installation. ▫ What will impact ultimate pulling tension. com/uploadedFiles/docs/pdf/technical-guidelines/TG16-. “Sidewall pressure” or laoding is the radial force exerted on a cable when pulled around The Cable. ▫ Coefficient of Friction. Fig . Oct 11, 2000 Don't get caught with a half-installed cable because you forgot to calculate the pulling tensionVolume 1. Mathematical proficiency aside, you do have to know the following installation parameters: Raceway size; Cable configuration; Correction factor for cable weight; Jamming potential; Conductor clearance; Sidewall bearing pressure. The Cable. ▫ Type of Jacket. ▫ Pulling Lube