High voltage isolation insulation optical cable joint box

Abstract

The invention provides a high voltage isolation insulation optical cable joint box, relating to an earth wire insulation joint box which is an optical cable joint box for power transmission wires of ultrahigh voltage and extra-high voltage. The high voltage isolation insulation optical cable joint box comprises an optical cable fixing clamp, a composite insulator, a sealing device, a discharge gap device, a connection sleeve, an optical fiber protection pipe and an optical fiber splice box; the composite insulator is provided with an insulator core bar out of which a petticoat is arranged; the sealing device comprises a sealing sleeve, a rubber cone and a screw cap; the connection sleeve is crimped and fixed at the lower part of the insulator core bar; the connection sleeve is provided with an optical fiber protection pipe connecting screw hole; the optical cable fixing clamp is provided with an optical cable fixing clamp body the upper part of which is provided with a fixing clamp, and a clamp block is arranged on the fixing clamp; an optical fiber protection pipe is arranged between the composite insulator and the optical fiber splice box, an optical fiber input joint and an optical fiber output joint are arranged at the bottom of the optical fiber splice box; the discharge gap device is arranged at two ends of the composite insulator; and the discharge gap device includes an upper electrode and a lower electrode.

Description

technical field [0001] The invention relates to a high-voltage isolation insulating optical cable splice box, which relates to a ground wire insulated splice box, and is a splice box for an optical cable of an ultra-high voltage or extra-high voltage transmission line. Background technique [0002] The imbalance of power production and load distribution in my country determines that long-distance power transmission is an inevitable choice for my country's power grid construction. With the development of my country's economy, the power corridor is becoming increasingly tense; on the other hand, the number of ultra-high voltage and ultra-high voltage transmission lines is increasing day by day. The multi-regional, large-capacity, and low-loss UHV-level backbone power grid will promote the technological upgrading of the electric power industry, realize the optimal allocation of resources in a wider range, and realize the mutual aid of water and fire across regions and river bas...

AI Technical Summary

Problems solved by technology

However, higher requirements are put forward for the ground wire insulation equipment. There are mainly two problems in the insulation: 1) When the OPGW insulation is charged, it is required to be reliably separated from the photoelectric at the connection. Faults may have to replace the entire optical cable, so the safety requirements for the equipment are high; 2) After the two ground wires are insulated, it will bring great inconvenience to the operation and maintenance of the line, especially on the OPGW connection tower, because the OPGW needs to Leading down the connection along the iron tower, it will make it difficult to climb the tower and increase the difficulty of the operation after being electrified

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