| 摘要 |
PROBLEM TO BE SOLVED: To obtain an information branch cable that can greatly reduce the cost for in the initial investment, shorten the work time, accomplish waterproof and fire retardancy in connecting part of the branched information cable, and also can be manufactured inexpensively. SOLUTION: This information branch cable comprises a main information cable consisting of a large number of tied information cables, a plurality of branch information cables connected to the plurality of information cables at the predetermined position of the main information cable, a compound for covering gaps existing in the connecting part of the plurality of branch information cables, and a contraction tube for covering tightly around the compound to make it waterproof. |
