Rat-proof field cable

Abstract

The present invention is a rat-proof field cable. One to four fibers are arranged in an optical unit tube, and the optical unit tube is filled with water blocking fiber paste. The optical unit tube is a stainless steel tube with the wall thickness of 0.1mm to 0.3mm and is a seamless pipe preferably, and the outer diameter is 1.2mm to 1.4mm. The outside of the optical unit tube is an armored stainless steel wire layer with the thickness of 0.40mm to 0.50mm. The armored stainless steel wire layer is closely coated by an outer sheath layer which is a high density polyethylene (HDPE) layer outer sheath layer with the thickness of 0.7mm to 0.9mm. According to the rat-proof field cable, the fiber is protected by the stainless steel optical unit tube and a single-layer armored stainless steel wire layer, compared with a plastic outer sheath layer field cable with the same thickness, the damage of the cable by rat biting can be effectively prevented, the normal operation of optical communication is maintained, the weight of the rat-proof field cable is small, the cable is convenient to carry, transport, laid and constructed, the cost is low, the price is low, and the cable is favored to popularized and applied.

Description

technical field [0001] The invention relates to the manufacturing technology of field optical cables, in particular to a rodent-proof field optical cable which can resist biting by rodents and will not be bitten or broken. Background technique [0002] Data communication between field command posts is the primary problem to be solved under field conditions. In the past, double wire and coaxial cables were used to provide communication channels for field command posts. Due to the small wire diameter and light weight of optical communication cables, low loss, wide frequency band, strong resistance to electromagnetic interference, and good confidentiality, optical communication technology has attracted much attention from the military. The field optical cable is a kind of optical cable that can be quickly retracted and used repeatedly in the field and in harsh environments. It provides a large-capacity channel for the troops to build a command post under field conditions. [...

AI Technical Summary

Problems solved by technology

Some rodent-proof field optical cables are armored with chrome-plated steel tape and covered with flame-retardant polyurethane, neoprene or polyester outer sheath, but once the outer sheath is bitten, the chrome-plated steel tape is easily rusted and loses its protective function when exposed to the air

There are also rodent-proof field optical cables that use stainless steel tape and a coating. Although they are not easy to rust, the cost is several times that of conventional chrome-plated steel tape armored optical cables. From an economic point of view, it is difficult to popularize them.

[0005] In short, there is no rodent-proof field optical cable that is light in weight, low in cost, and resistant to rodents.

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