| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to lay the desired number of cables using their pipe sections and to connect the pipe sections which have different diameters according to the sizes and the number of the cables in parallel with each other by making it possible to connect a plurality of the pipe sections in parallel with each other. SOLUTION: Used in a pipe assembly is a pipe for electric facility which has connection joints 2, 3 at least one place in the circumference direction of the outer surface of a pipe section 1. The pipes for electric facility are connected to each other by letting their connection joints 2, 3 fit in with each other. Through the pipe sections 1 of the pipes for electric facility, cables L such as electric wires or communication wires are passed.</p> |
