Cable Termination Structure Basic Design Information

• Basic Design principles: – Structural steel shall be designed in accordance with the ‘General Construction in steel Code of Practice (IS 800 LSD).
• Load Combination

         1. 1.5 D.L. + 1.5 C.L.

         2. 1.5 D.L. + 1.0 DYNAMIC

          3. 1.5 D.L. + 1.0 DYNAMIC + 1.0 EQX

          4. 1.5 D.L. + 1.0 DYNAMIC + 1.0 EQZ

5. 1.0 D.L +1.0 WLX

6. 1.0 D.L +1.0 WLZ

7. 1.0 D.L +1.0 WLX + 1.0 CL

8. 1.0 D.L +1.0 WLZ + 1.0 CL

          Where,

                    D.L. = Dead Load

                   C.L. = Cable Pulling Load

                   Dynamic =Dynamic Load

                   EQX = Earthquake in X-direction

                   EQZ = Earthquake in Z-direction

WLX = Wind Load in X-direction

WLZ = Wind Load in Z-direction

• Dead Load =Self Weight Cable Weight +Termination Equipment Weight +Clamp Weight +Link Box Weight +Earth Strip Weight. Etc.

• Cable Pulling Load (Tension Load)-

          Applicable for 1 cable at a time

                Tension Load = L*W*f

                Where,

                          L = Length of wire

                           W = Weight of cable

                            f = Co-efficient of friction

• Dynamic Load

FS= 2*10^-7*IS^2/A

IS= K*(SQRT2)*IC