[ Home Page]  ELECTRICITY DISTRIBUTION OVERHEAD LINE LV POLE SELECTION

ELECTRICITY DISTRIBUTION

POLE SELECTION

HV&LV Common Pole Selection.

LV Pole Selection

Vector pole selection calculations

Conductor Ice Load Calculation

 

HV-LV COMMON POLE CONDUCTOR

TENSION CALCULATION

 

Conductor Tension For Ice Load Zone

All Ice Load Zone Tension

LV System Type Tension

(HV+0.81xLV) Common Tension

(LV+1.4375xHV) Transformer Pole T.

 

 

 

LV COMMON CARRIER (STRAIGHT) POLE SELECTION

          

  Ice Load Zone:    Pole Span: 50 m        40 m

        LV System:

 

                                 3xAster+Rose / Pansy                                                                               3xAster+Rose / Pansy

  1.Ice Load Zone 

 3xAster+Rose / Pansy Wind Load:  120,8 kg                            

     Calculation For Steel Pole:

     Pole Strong Side Maximum Tension.........: 120,8   kg                                        

     Pole Weak Side Maximum Tension...........: 11,8 kg

     Selected Steel Pole.....................................: 8I (231/44) kg 

 

     Calculation For  Concrete Pole:

     Pole  Maximum Tension........................................: 120,8  kg                                         

     Seçilen Beton Direk................................................: 9.30/1.5 kg

 

    Calculation For  Wooden Pole:

    Pole Maximum Tension...................................: 120,8  kg                                         

    Selected Wooden Pole......................................: 10-M (146) kg top diameter (15-17) cm 

 

    Not:1- Concrete Pole  11/4 = Pole Height 11 m, strength at the top 400 kg.

            2- Wooden Pole 10-L (88) Light wooden pole length 10 m, strength at the top 88 kg (L=Light, M=Medium, H=Heavy)   

            2- I, U, Long Span (50 m) I and U profile steel  pole. K Long Span (50 m) lattice pole

            3- Ik, Uk, Short Span (40 m) Ik ve Uk profile steel  pole. Kk Short Span (40 m) lattice pole

 

 

 

LV  CORNER CARRIER POLE  SELECTION

      

    Ice Load Zone:     Pole Span: 50 m        40 m       Angle(α) :

           LV System:

 

                                         

   

    Calculation For Steel Pole:                       

     1.Ice Load ZoneTension Force :  590 kg                                            

     Pole Strong Side Maximum Tension.................: 589,6     kg                                      

     Pole Weak Side Maximum Tension...................: 11,8 kg

     Selected Steel Pole.............................................: 10U (597/95) kg 

 

    Calculation For  Concrete Pole:

    1.Ice Load Zone Tension Force.....: 521,6 kg                                            

     Pole Maximum Tension.........................: 521,3    kg                                    

     Selected Concrete Pole..............................................: 9.30/6 kg

 

    Calculation For  Wooden Pole:

    1.Ice Load Zone  3xAster+Rose / PansyTension Force.......: 521,6 kg                                            

      Pole Maximum Tension..............................................: 521,3    kg                                    

      Selected wooden Pole.................................................:  Wooden poles are not used in this conductor arrangement. 

 

                                                                                             

LV STOPPER(TERMINAL) POLE  SELECTION:

      

         Ice Load Zone:     Pole Span: 50 m        40 m

              LV System1:    LV System 2:

                              3xAster+Rose / Pansy                                                                          3xPansy+Rose / Pansy

  1.Ice Load Zone  3xAster+Rose / Pansy Tension Force :  590 kg    Wind Load :  60,4

  1.Ice Load Zone  3xPansy+Rose / Pansy Tension Force :  492,4 kg    Wind Load : 51,8

    

 

Calculation For Steel Pole:

  

T1= 590    T2= 492,4  T2weak= 246,2    T= 343,8     Twind= 112,2  kg  Pole must be :(343,8/112,2)  Selected Pole = 10I (500/160) 

 

                         Calculation For  Concrete Pole:

T1= 521,6    T2= 437  T2weak= 218,5    T= 303,1     Twind= 112,2 kg   Pole must be :(303,1/112,2)  Selected Pole = 9.30/3.5 

 

 

 

*For more detailed tension calculation and pole selections: You can access the Vector Calculations based on Angle and Attenuation and LV Pole and Transformer Pole Selection program.

                                                                                                 
LV CORNER STOPPER(TERMINAL) POLE  SELECTION:

      

         Ice Load Zone:     Pole Span:50 m        40 m         Angle(α) :   

             LV System 1:   LV System 2:

 

 

  Calculation For Steel Pole:

T1=  1.Ice Load Zone 3xAster+Rose / Pansy Tension Force :  590 kg    

T2=  1.Ice Load Zone 3xPansy+Rose / Pansy Tension Force:  492,4 kg    

 

  Calculation For Steel Pole:

1-By Vector combination :

    Pole Strong Side Maximum Tension.: 548    kg                                       

    Pole Weak Side Maximum Tension...: 84,5kg

    Selected Steel Pole...........................: 10U (700/170) 

2-According to Unilateral Attenuation :

T2=  1.Ice Load Zone  3xPansy+Rose / Pansy Tension Force  :  492,4 kg  

Rx = 297,7     Ry= 418,2   Rlattice= 715,9 kg (for lattice Pole  R=Rx+Ry)  RAtype= (513,3/297,7) =kg

    Selected Lattice(cage pole) Steel Pole....: K1 (1000) 

    Selected A type Steel Pole.......................: Bu tepe kuvvetine ait Atipi direk bulunmamaktadır. 

   Pole must be : Since the Tension found according to the Unilateral Attenuation calculation is higher K1 (1000) Pole Selected

Calculation For  Concrete Pole:

1-By Vector combination :

    Pole Maximum Tension.........................: 485,1    kg                                       

    Selected Concrete Pole..........................: 9.30/5 

2-Unilateral Attenuation  :

T2=  1.Ice Load Zone  3xPansy+Rose / Pansy Tension Force:  437 kg  

Rx = 262,5     Ry= 370,2   Rconcrete= 453,8 kg

    Selected Concrete Pole...........................................: 9.30/5 

  Pole must be: Since the Tension found according to the By Vector combination calculation is higher9.30/5 Pole Selected

 

 *For more detailed tension calculation and pole selections: You can access the Vector Calculations based on Angle and Attenuation and LV Pole and Transformer Pole Selection program.

 

                                                                                                                                                         

LV DEAD-END POLE  SELECTION:

      

       Ice Load Zone:     Pole Span: 50 m        40 m

              LV System:

                                                                                                       

 

  T1=  3xAster+Rose / Pansy                                                      

Calculation For Steel Pole:

Ttension(3xAster+Rose / Pansy)= 590     Ttension= 590 kg  Twind= 60,4      Pole must be  :(590/60,4)  Selected Pole = 10U (700/170) 

 

 Calculation For  Concrete Pole:

Ttension(3xAster+Rose / Pansy)= 521,64   Ttension= 521,6  kg  Twind= 60,4       Pole must be  :(521,6)   Selected Pole  = 9.30/6 

 

*For more detailed tension calculation and pole selections: You can access the Vector Calculations based on Angle and Attenuation and LV Pole and Transformer Pole Selection program.

                                                                                                                     

LV  BRANCH POLE  SELECTION:

 

      Ice Load Zone:     Pole Span: 50 m        40 m      

           LV System 1:

          LV System  2:

 
                                 3xAster+Rose / Pansy                                                                       3xAster+Rose / Pansy  
   
 

3xPansy+Rose / Pansy

  

1-Straight:

Calculation For Steel Pole:

Ttension1,2(3xAster+Rose / Pansy)= 590   Ttensionx=0  Ttension3(3xPansy+Rose / Pansy)= 492,4 kg  Ttension3y= 492,4  Pole must be :(492,4) 

Selected Pole = 10I (500/160) 

Calculation For  Concrete Pole:

Ttension(3xAster+Rose / Pansy)= 437,01   Ttensionx=0 Ttension3(3xPansy+Rose / Pansy)= 437 kg   Ttension3y= 437  Pole must be  :(437) 

Selected Pole  = 9.30/5 

 

2-Angle:

   Angle(α1) :    Angle(α2) :   

Calculation For Steel Pole:

T1=T2(3xAster+Rose / Pansy)=590     T3(3xPansy+Rose / Pansy)=492,4   T3z=492,4   Tstrong= 1082 kg   Tweak=0  kg   

Ttension= 1082    Pole must be :(1082/1082)  Selected Pole  = K2 (2000) 

Calculation For  Concrete Pole:

T1=T2(3xAster+Rose / Pansy)=521,6     T3(3xPansy+Rose / Pansy)=437,01   T3weak=437   Tstrong= 958,2 kg   Tweak=0  kg   

Ttension= 958,2    Pole must be :(958,2)  Selected Pole = 9.30/10 

 

*For more detailed tension calculation and pole selections: You can access the Vector Calculations based on Angle and Attenuation and LV Pole and Transformer Pole Selection program.

                                                                                 

LV DISTRIBUTION POLE  SELECTION:

         Ice Load Zone:     Pole Span: 50 m        40 m      

              LV System 1:

              LV System 2:

              LV System 3:

 
                                                       T1= 3xAster+Rose / Pansy                     T2=3xPansy+Rose / Pansy
   

T3=5xRose

Calculation For Steel Pole:

 T1=590 kg               T2tension=492,4 kg    T2weak=246,2 kg     T3tension=353,5 kg     Ttension= 697,3 kg

 Selected Steel Pole= K1 (1000)   

Calculation For  Concrete Pole:

T1=521,6 kg                 T2=437 kg      T2weak=218,5 kg            T3=316,2 kg     Tcer= 512,8 kg

 Selected Concrete Pole = 9.30/6  512,8 

Note: If additional HV traverse(crossarm)  is used, the concrete pole length will be taken as 1 m longer.

*For more detailed tension calculation and pole selections: You can access the Vector Calculations based on Angle and Attenuation and LV Pole and Transformer Pole Selection program.