An optical cable insulation junction box for transmission towers

Abstract

The invention provides an optical cable insulation junction box for a power transmission tower, the power transmission tower includes a vertically arranged tower body and a cross arm arranged horizontally on the tower body; the junction box includes a box body, and the tower body The connected connection plate and the insulator string arranged between the box body and the connection plate, the lower side of the box body is provided with a fixed plate connected with a conductive member; the optical cable connected with the ice-melting device is fixed in the connection box . The splice box provided by the present invention can reduce the loss of the OPGW optical cable under normal operating conditions, the OPGW optical cable can play the role of lightning protection and leakage short-circuit current under the condition of instantaneous overvoltage, and the OPGW optical cable can perform ice-melting operation in extreme ice and snow weather advantage.

Description

Technical field [0001] The invention relates to an electric power construction device, in particular to an optical cable insulation splice box for a power transmission tower. Background technique [0002] An electromagnetic field is generated around the wires of the transmission line, and then electromagnetic induction voltage and electrostatic induction voltage are generated on the ground wire. The OPGW cable, which adopts the tower-by-tower grounding method, forms a loop with the earth, and there is long-term energy loss in the OPGW cable. Therefore, it is necessary to provide a fiber optic cable insulation splice box for power transmission towers to reduce energy loss. [0003] After long-term observation, the inventor found that the existing optical cable insulation splice box has the following problems: 1. When the OPGW optical cable insulation is charged, it is required to reliably separate the photoelectricity at the splice. Since the OPGW optical cable is installed in a wh...

AI Technical Summary

Problems solved by technology

[0003] The inventor found through long-term observation that the existing optical cable insulation splicing box has the following problems: 1. When the OPGW optical cable is insulated and charged, it is required to be reliably separated from the photoelectricity at the joint. This increases the cost of using

2. In ice and snow weather, the transmission line will be covered with ice and snow. This kind of optical cable insulation junction box does not have the ground wire anti-icing technology, and cannot guarantee the normal operation of power equipment.

3. High manufacturing cost, not easy to install and use

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