Intrinsically safe oil-resistant and mud-resistant fire-resistant cable for offshore platforms and its preparation process

Abstract

The invention discloses an intrinsically safe oil-resistant and mud-resistant fireproof cable for marine engineering platforms and a preparation process. The cable is sequentially provided with a cable core wrapping layer, a cable shielding layer, an inner lining layer, an armor layer, The outer sheath, the cable core wrapping layer is also provided with a refractory conductor, an insulating layer and a filler arranged on the outer layer of the refractory conductor. In addition to the characteristics of low capacitance and low inductance, the cable structure also has excellent shielding performance and mechanical protection performance due to the addition of copper wire braided shielding structure. The cable's anti-electromagnetic field interference and anti-electric field coupling capabilities are relatively ideal. , which effectively prevents the hidden danger of sparks caused by partial discharge caused by changes in the electromagnetic field; the structure of mica tape wrapping reduces the risk of sparks caused by overloading of the cable carrying current, and the mica tape is coated on the surface of the conductor to isolate oxygen, effectively Prevent the generation of sparks in the cable core.

Description

technical field [0001] The invention belongs to the technical field of cable production, and in particular relates to an intrinsically safe oil-resistant and mud-resistant fireproof cable for offshore platforms and a preparation process thereof. Background technique [0002] The trial production of offshore engineering platforms is mainly used for offshore floating structures in the fields of subsea oil and natural gas exploration and exploitation platforms, floating oil storage depots and oil refining. In the actual working process, there will inevitably be a large amount of flammable and explosive oil and gas substances. At present, the cables used by various offshore platforms will not have any problems during normal use. Once the cables are overloaded due to abnormal lines or the cables receive electromagnetic interference, causing sparks, it will increase the risk of oil and gas being ignited and causing an explosion. Contents of the invention [0003] Purpose of the...

AI Technical Summary

Problems solved by technology

At present, the cables used by various offshore platforms will not have any problems during normal use. Once the cables are overloaded due to abnormal lines or the cables receive electromagnetic interference, causing sparks, it will increase the risk of oil and gas being ignited and causing an explosion.

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