| 摘要 |
PROBLEM TO BE SOLVED: To easily prevent lightning damage of electronic equipment by inclining a lighting conductor at an optional acute angle looking upward against the central vertical line of the lighting conductor in the upper part from there in an optional portion from the root to the tip of the lighting conductor. SOLUTION: A fixing seating 14 having a cutting hole 14a is fixed to a base 12 on a roof surface 11, and an insulating supporting pipe 15a bent at an optional acute angle looking upward against the central vertical line is inserted into the fixing seating 14. A projecting needle rod 16 and a metal fixture 17a for both a projecting needle and pulling down wire fixing are fit to the upper end of the insulating supporting pipe 15a. A gold plated tip 18 is formed on the tip side of the projecting needle rod 16, a pulling down cable 20 having a core wire part 19 whose tip is slightly exposed is pulled down through the metal fixture 17a for both the projecting needle and pulling down wire fixing, the insulating supporting pipe 15a, and the fixing seating 14, and introduced into a protecting pipe 23 crosswise formed with protecting pipe supporting pipes 22, 22a with concrete block. The core wire part 19 is connected to the metal fixture 17a through a fixing terminal 21a. |
