发明名称 |
ELECTRICAL POWER CABLE UNDERGROUND-LAYING DEPTH MEASURING METHOD |
摘要 |
The underground-laying depth of an electric power cable is obtained on the basis of temperature data of the electric power cable laid underground, ambient temperature data of a place where the electric power cable is laid underground, calorific power data of the electric power cable, thermal resistivity of soil where the electric power cable is laid underground, and radiation thermal resistivity of the surface of the electric power cable. The ambient temperature means the temperature of a place which is not influenced by the heat of the electric power cable.
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申请公布号 |
CA2213641(A1) |
申请公布日期 |
1998.02.23 |
申请号 |
CA19972213641 |
申请日期 |
1997.08.22 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
HATA, RYOSUKE;NAKURA, YUJI;YAMAGUCHI, MASAYOSHI |
分类号 |
G01K11/12;G01V3/02;G01V9/00;H02G1/10;H02G9/00;H02G9/02;(IPC1-7):G01V9/00 |
主分类号 |
G01K11/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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