JPS58188985U - ground electrode - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a first embodiment of this invention. FIG. 2 is a perspective view of the nailed ground rod. FIG. 3 is a schematic diagram of four nailed ground rods combined in a cross pattern. FIG. 4 is a sectional view showing a second embodiment of this invention. FIG. 5 is a perspective view of the copper strip ground plate. FIG. 6 is a diagram showing the equivalent radius in the case of conductive fiber-containing concrete alone. FIG. 7 shows a nailed ground rod buried in conductive fiber-filled concrete. Figure 8 shows
It is a schematic diagram showing the equivalent radius of a ground electrode. In the figure, 2 is conductive fiber filled concrete, 4 is a nailed grounding rod, 41 is a pipe, 42 is a needle, 6 is a copper band grounding plate,
61 is a sharp corner.

Claims (6)

[Scope of utility model registration request] (1) A grounding electrode in which conductive fibers are mixed in concrete, and electrodes having many sharp parts are buried in the concrete. (2) The grounding electrode according to claim 1, wherein the electrode is a nailed grounding rod in which a number of conical conductor needles each having a sharp tip are provided on the conductor rod. (3) The grounding electrode according to claim 1, wherein the electrode is a band-shaped copper strip grounding plate having many sharp corners. (4) The ground electrode according to any one of claims 1 to 3, wherein conductive fibers having a length of about 3 cm are mixed in the concrete to the extent that they are connected to each other. (5) The conductive fiber is carbon fiber. A grounding electrode according to any one of claims 1 to 4 of the utility model registration claims. (6) The ground electrode according to any one of claims 1 to 4, wherein the conductive fiber is a metal fiber.