Lightning protection device for data transmission cable of remote sensing digital seismograph

Abstract

The invention provides a lightning protection device for data transmission cable of a remote sensing digital seismograph, comprising a metal case. A cable lightning protection unit is arranged in the metal case. Both ends of the metal case are respectively provided with a waterproof quick plug and a waterproof quick socket through transmission cables. The transmission cables at the both ends of the metal case enter the metal case to be electrically connected with the cable lightning protection unit through cable fasteners. According to the lightning protection device, the traditional outdated slow inefficient installation ways where a lightning protection element is peeled and broken in advance or retreated in an equipment case are changed into advanced installation ways where the same plug and socket are used in a cable circuit to be connected in series in advance and are quickly inserted and pulled, the lightning protection effect is good, and the quick mobility is added. A mobile portable quick lightning protection device is provided for the field mobile oil and gas exploration work which needs regular transfer. The lightning protection device is arranged in a transmission cable circuit in advance so as to intercept the leakage in advance; and when the leakage levels are more, the residual voltage is lower, and the lightning protection effect is better.

Description

technical field [0001] The invention relates to the technical field of lightning protection safety, in particular to a lightning protection device for a data transmission cable of a remote measurement digital seismograph. Background technique [0002] Oil and natural gas are important energy and strategic resources of the country. At present, my country's oil and gas exploration operations mainly rely on the use of imported telemetry digital seismometers (such as the French 408UL type), which are equipped with a huge set of data laid in the field. Collection and transmission cable network, most of the working areas are in barren mountains and mountains. Since the transmission cable network (divided into three-dimensional and two-dimensional) of a seismograph is generally composed of more than a dozen 4-core transmission cables with a length of 30 to 50 kilometers, each cable measurement line is connected in series at intervals of 50 meters and 2400 meters. station and a DC 1...

AI Technical Summary

Problems solved by technology

[0007] Due to my country's limited economic strength and poor economic affordability, the number of oil and gas exploration equipment is relatively small, and the exploration efficiency is low. The area to be explored or unexplored is still large, and most of them are located in deep minefields in the mountains; The requirements are low. Field oil and gas exploration operations are mostly carried out in summer. The huge transmission cable network arranged deep in the mountains cannot be withdrawn in time before the thunderstorm comes. The problem of lightning strikes is particularly prominent, and lightning strikes have already caused huge economic losses.

For a long time, due to the lack of effective special lightning protection equipment or devices, many seismographs have been severely damaged by lightning, and a large number of collection stations and transmission cables have been burned out. Often, a single lightning strike can burn out hundreds of collection stations and nearly a kilometer. Transmission cables, each lightning strike accident has caused direct economic losses ranging from hundreds of thousands to several million yuan

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