| 摘要 |
According to this method, in a building 1 including a floor 2, posts (stanchions) 3 and upper rails (transoms) 4, a mark 7 is made on the floor vertically in line with the location where it is desired to position an electrical power outlet, a hole is drilled in the rail (transom) vertically above the said mark and a positioning tool 9 is installed, an indicating element of which is visible under the roof, the framework of the building is closed off by means of partitioning panels, walls and a ceiling, the indicating element is identified and the tool 9 is connected to an electrical conductor, then the tool is disconnected and allowed to fall under the action of gravity behind a partition into which a hole is subsequently drilled vertically in line with the mark 7 for connecting it to a power outlet. Application especially to the installation of electrical wiring in buildings. <IMAGE>
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