Cable for hydraulic observation

Abstract

The invention discloses a cable for hydraulic observation. The cable for the hydraulic observation comprises a plurality of stranded cores, a taped covering and an outer sheath which are respectively arranged from inside to outside. A plurality of cores are stranded in the lay ratio of 10-12; each core consists of a conductor and an insulating layer wrapping the conductor; each conductor is stranded by a plurality of tinned copper wires or multiple strands of tinned copper wires in the lay ratio of 8; gaps of the cores are filled and coated by petroleum butter; the coating thickness is 0.5-0.8mm; a water-blocking tape lapped with overlap is adopted as the taped covering, and the overlap ratio is 50 percent; and the outer sheath is made of a high-density polyethylene sheath material. The cable is high in water resistance, excellent in electrical performance, good in mechanical property, low in attenuation, low in cost and long in service life, is highly flexible, is easy to install and is resistant to corrosion.

Description

technical field [0001] The invention relates to the technical field of special equipment for hydraulic observation, in particular to a special cable for hydraulic observation. Background technique [0002] The purpose of hydraulic observation is to understand the dynamics and changing rules of hydraulic structures under various water levels, temperatures and other influencing factors, and at the same time to verify the reliability of design and construction, so as to ensure the safe operation of hydraulic structures and lay a solid foundation for the future Scientific research provides valuable information to make it better serve human beings. It can be seen that the wire and cable for signal transmission as one of the hydraulic observation equipment is particularly important. [0003] At present, the cables used for hydraulic observation are not really hydraulic observation cables. This is because the cable structure for hydraulic observation should be designed according t...

AI Technical Summary

Problems solved by technology

[0003] At present, the cables used for hydraulic observation are not really hydraulic observation cables. This is because the cable structure for hydraulic observation should be designed according to the environment in which it is used and the function it realizes: ①The hydraulic observation cable is basically Laying in water requires the cable to be highly waterproof, but the current structure of this type of cable is only limited to radial waterproofing, and does not involve in longitudinal waterproofing technology, causing water to enter from the cable end, causing cable failure and reducing service life; When laying at the same time, there is no need to set the cable shielding layer, because there is no signal or magnetic field to interfere with it, but when there is strong or weak current, and multiple cables are laid together, it is necessary to set up a shielding layer for the hydraulic observation cable to ensure that the information At present, this kind of technology sets the shielding layer uniformly, which not only causes waste of materials, but also greatly increases the procurement cost; ③There are a large number of microorganisms in the water, which can easily cause the hydraulic detection cable to be corroded, greatly shortening the service life of the cable , based on the current hydraulic observation cable technology, none of them meet the requirements

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