JPS5936212A - Juncture of optical communication wires of overhead earth wire containing optical communication wires - Google Patents

Abstract

PURPOSE:To prevent damaging of an optical communication wire from a anchor clamp up to a connection box, by pentrating said wire through a terminal clamp, and connecting the same to each other in the connection box for the optical communication wire. CONSTITUTION:A junction 10 for optical connection wires of overhead earth wires contg. optical communication wires is illustrated. The two overhead earth wires 18, 18' contg. optical communication wires anchored to both sides of the arm 14 of a steel tower 12 by means of anchor clamps 16, 16' penetrate through the clamps 16, 16' and extend along both sides of the arm 14. The wires 18, 18' consist of steel stranded wire 24 twisted around a metallic pipe 22 in which an optical communication wire 20 is contained. These wires 18, 18' are crossed over the arm 14 so as to conform to the contour of the arm 14 at large curvature. Support clamps 26, 26' support the parts 18a, 18'a of the wires 18, 18' along the arm 14 respectively on the arm 14.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical communication line connection section of an overhead ground line containing optical communication lines, which connects the optical communication lines to a steel tower component such as a tower arm and connects the optical communication lines to each other. This is related to the improvement of

Optical communication lines are inserted into overhead ground wires to transmit information that controls power transmission on power transmission lines.The overhead ground wire with optical communication lines is held on top of the steel tower, and the optical communication lines are connected to the adjacent overhead ground wire. Connected to the optical communication line within the ground line. In the conventional technology, this optical communication line was pulled out from the retaining clamp that holds the overhead ground wire and connected on the tower, so the optical communication line was led to the junction box with the ridge still intact, and was bent by force and damaged. It had some drawbacks.

An object of the invention is to provide an optical communication line connection section for an overhead ground wire containing an optical communication line, which prevents the optical communication line from being damaged between the retaining clamp and the connection box.

If we describe the example of non-invention in detail with reference to the drawings, the first example is
The figure shows an optical communication mm connection part 1 (J) of an overhead ground line with an optical communication line according to the invention, and two optical communication lines are held together by holding clamps 16 and 16' on both sides of an arm 14 of iron, $12. An overhead ground wire 18.18' with optical fibers passes through this tie clamp and extends along both sides of the tower arm 140. They consist of steel strands twisted around a gold MW 22 in which the optical fibers are housed.In the embodiment shown, these optical fiber-containing overhead ground wires 18 and 18' have a large curvature. The support clamps 26 and 26' are mounted on the tower arm along the tower arm 14.
18. Portion 18a along tower arm 14 of 18'
% 18'a are each supported on the steel tower arm 14 (see Figures 1 and 3) 0 The optical communication line connection section 4 is, as shown in Figures 1 and 3,
Overhead ground wire section 1 with 0-optical communication line, which is fixed near the top end of the steel tower 12 and has a workbench blade near it.
The end of 8', 18'a is connected to the steel tower 1 near this junction box.
2 with end clamps 32, 32'. These terminal clamps 32, 32' clamp the ends of the overhead ground wire portions 18a, 18'a and are fixed to the mounting frame 29 of the junction box, as shown in FIGS. The communication line is attached to gold with this terminal clamp 32.3 along with 14 tubes 22.
2' and guided into the junction box, where they are interconnected.

Note that the two inlet tubes 28a of the connecting shaft are connected to the terminal clamp 32.
．． A metal tube that extends to a 32' circle and has a line in the original line.
passes through this inlet tube 28a and is guided into the connecting box,
A waterproof tape 34.34' is wrapped across the inlet fisf 28a and the end clamp 32.32'.

According to the non-invention, as mentioned above, the optical communication line is protected by the overhead ground wire because the optical communication line is connected to the trunk where the optical communication line is inserted (even the N line junction box). Above, the overhead ground wire is supported by support clamps on tower components such as tower arms, and is also supported by the tower near the connection axis, so there is no possibility that excessive force from the overhead ground wire will be applied to the optical communication line pulled out from the terminal clamp. Therefore, information can be reliably transmitted without damaging the optical communication line.

[Brief explanation of the drawing]

Fig. 1 is a top view of the optical communication line connection part of the optical communication line-containing overhead ground line according to the invention, Fig. 2 is an enlarged cross-sectional view of the optical communication line-containing overhead ground line, and Figs. 3 and 4 are A perspective view and an enlarged front view of the main parts of the present invention, and Fig. 5 is an enlarged front view longitudinally sectionalizing a part of the terminal clamp used in the invention. Optical communication line connection section. 12---One steel tower, 14---One steel tower arm, 1
6.161-1---Trading clamp, 18.18'---
--Overhead ground wire with Ikkotsu 1 word line, 18a, 18'a-1---Portion along tower arm of overhead ground wire with optical communication line, 20---Ikko communication line, 26. 26'----1 support rung, 4-1111 optical communication line connection box, 32.32
'---One terminal clamp OE

Claims (1)

[Claims] At the optical communication line connecting portion of the overhead ground line containing optical communication lines that interconnects the optical communication clothes of the two optical communication cables of the overhead ground line containing the optical communication line and the RM line held on both sides of the steel tower arm, the two optical communication lines are connected to each other. The incoming overhead ground wire passes through each of the retaining clamps and extends along the tower component to the optical communication line junction box mounted on the tower, and connects the above-mentioned two optical communication line incoming overhead ground wires to the portion along the tower component. and terminal clamps that respectively support the ends of the optical communication line-containing overhead ground wires on the steel tower near the optical communication line connection box, and the optical communication line passes through the terminal clamps. An optical communication line connecting portion of an overhead ground wire containing an optical communication line, characterized in that q are mutually connected within the optical communication line connection box.