Method for laying cables placed in a Ditch of low Thermal Resistivity, composition, and arrangement for transporting Electric Power cables arranged 33

摘要

A device for transmitting electric power through underground cable Specifically, it refers to a method of laying cables and a kind of low heat energy backfilling ditch, which is used for the underground passage of power transmission. More specifically, it refers to the use of inert filler in an area around the cable or some parts of the system for processing, such as seals available on the surface surface. 1. The method of laying ditch cable includes the following stages: clearing the original seal and preparing the ditch;Prepare the first component of the first layer in this trench; prepare these superluminal cables; prepare the first component of the second layer on these cables; prepare the second component of the third layer on the second layer to fill this trench; The characteristics of the first test are: 60-90% by weight of grinding sand; 4-15% by weight of mud; 2-12% by weight of cement; 4-15% by weight of water. Ingredients used for inert filling, with heat strength less than or equal to 0.8km/w, containing 60-90% of pre-determined particle crushed sand by weight, 4-15% of mud by weight;2 to 12 percent by weight of cement 4 to 15 percent by weight The layout of electric power transportation includes the composition at the beginning of the first floor, the composition of cables from the first floor to the second floor of the first floor, and the composition of the first floor has been determined.