摘要
描述地下电缆铺设时土壤回填方法及回填材料选择对电缆线路安全运行的影响。介绍如何选择合适的热回填法及液态热回填概念。给出详细的土壤成份及其热阻系数,对电缆热状态调查提出建议,并说明如何考虑土壤的热稳定性问题。
The use of the proper thermal backfill is essential for higher cable ampacity and longer cable life. This paper describes the influnce of backfill methods and materials used in burial processes over the running security and life of underground cable lines. How to select the proper thermal backfill, the concept of fluidized thermal backfills, soil companents and their thermal resistivities are given here, as well as factors considered in the soil thermal stability.
关键词
电缆敷设
热回填
热阻系数
土壤分析
cable burial
thermal backfill
thermal resistivity
soil thermal survey
