BELL SYSTEM SLEET STORM MAT 

 Design of the Pole Plant 



119 



A pole is subjected to vertical and transverse loads. The vertical 

 load comprises the combined weights of the pole, crossarms, wires 

 and any snow and sleet that may adhere to them. The transverse 

 load is considered to be caused by a horizontal wind pressure upon 

 the projected area of pole, crossarms and ice covered wires. 



Fig. 3 



The moment about the ground line section, due to the vertical 

 loads is practically negligible due to the fact that the greater part of 

 the weight of the pole, fixtures and attachments is balanced and 

 therefore produces no moment upon the pole. Any small unbal- 

 anced weight acts through such a short lever arm that it produces a 

 very small moment upon the pole. In any particular storm loading 



