JPS5824334Y2 - Insulated wire with optical fiber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical fiber-containing insulated wire that can be used as an overhead insulated wire and whose disconnection can be immediately detected.

Insulated wires used for overhead power distribution may break and fall due to lightning, external force, etc. In the former case, there may be as many as 500 incidents in a six-month period due to lightning.

In normal power distribution systems, power transmission is stopped when an abnormality occurs, but the Japanese standard is for power to be retransmitted one minute later.

For this reason, high voltage is applied again to the fallen insulated wire, but because of the insulation coating, in most cases, the voltage is applied as is, and the high voltage wire remains alive on the ground. This is extremely dangerous as it will be lying around.

In this case, if it is possible to detect a break in the distribution line, it will be possible to determine whether or not to carry out the above-mentioned retransmission.
This will minimize the range of power outages and ensure personal safety.

The present invention was developed in view of the above-mentioned situation, and provides an insulated wire containing optical fiber, which is normally used as an insulated wire for overhead power distribution, and is characterized in that disconnection accidents can be detected immediately.

Embodiments of the insulated wire of the present invention will be illustrated and described.

FIG. 1A is a sectional view, in which 1 is a conductor, 2 is a separator, 3 is an insulator, 4 is an optical fiber, and the opening is an enlarged view of a portion of the optical fiber in A.

FIG. 2 is a cross-sectional view of another embodiment. In the case of FIG. 1, the optical fiber 4 is located in the middle of the separator 2 (between two layers of separators), but in the case of FIG. It shows what is on the side.

In either case, the optical fiber 4 is longitudinally attached in the length direction of the insulated wire.

Further, the optical fiber 4 and the separator 2 are integrated by a method such as pasting, etc., and the tension applied to the optical fiber is absorbed by the separator during the production of the insulated wire and the overhead wire of the present invention.

Next, a method of using the optical fiber-containing edge wire of the present invention will be explained.

How to use 1: Install a light receiver at the power transmission end and use an optical fiber to detect the arc light when the wire is fused by lightning.

Usage method 2: A light emitter is installed at the power receiving end and a light receiver is installed at the power transmitting end, and light is passed through the optical fiber at all times, and a break in the fiber is detected by the interruption of the light.

Usage Method 3 It is also possible to connect two optical fibers at the power receiving end and detect using a light emitter and a light receiver provided at the power transmitting end.

Usage Method 4 (Application) It can also be used for controlling switches, etc. at the power receiving end, transmitting power meter readings, etc., and transmitting information.

The advantages of the optical fiber-containing insulated wire of the present invention are (a) The optical fiber and the separator are integrated by a method such as pasting the optical fiber to the separator, so the optical fiber is The separator absorbs this tension, reducing the chance of optical fiber breakage.

(b) A simple system in which a light receiver is installed only at the transmitting end when light is not passing through the optical fiber all the time, and a light receiver is installed at the transmitting end and a light emitter at the receiving end when light is always passing through the overhead insulated wire. Since disconnection accidents can be detected immediately, necessary safety measures can be taken immediately.

etc.

The optical fiber-containing insulated wire of the present invention has great practical effects as described above.

[Brief explanation of the drawing]

The drawings all relate to the optical fiber-containing insulated wire of the present invention. Figure 1 (A) is a cross-sectional view of the optical fiber between the separator layers, the opening is a partially enlarged view of (A), and Figure 2 shows the optical fiber between the conductor and the separator layer. It is a sectional view in the case where it is located between. 1... Conductor, 2... Separator, 3...
...Insulator, 4...Optical fiber.

Claims (1)

[Scope of utility model registration request] 1. An insulated electric wire containing an optical fiber, characterized in that one or more optical fibers integrated with a separator are longitudinally attached between a conductor and an insulator. 2. Utility model registration claim 1 in which the optical fiber is between two layers of separators provided between a conductor and an insulator
Insulated wire with optical fiber as described in section. 3. The insulated electric wire containing optical fiber according to claim 1, wherein the optical fiber is provided inside the separator (on the conductor side) between the conductor and the insulator.