CN201199464Y - Marine symmetrical control low-smoke halogen-free signal cable - Google Patents

Abstract

The utility model discloses a ship-used symmetrical control low-smoke halogen-free signal cable with excellent anti-interference performance and signal transmission in the technical field of cables. The communication transmission wire core includes a pair or more than one pair of insulated wire cores, and each insulated wire core includes a tinned copper wire conductor, and the tinned copper wire conductor is covered with a cross-linked polyethylene insulating layer; after the insulated wire cores are twisted The tinned wire shielding layer is wrapped around it, and the halogen-free filler is filled between the tinned wire shielding layer and the insulated wire core; the communication transmission wire core is twisted and then wrapped with tape; the gap between the tape and the communication transmission wire core is filled with no halogen Halogen filling; set cross-linked polyolefin sheath outside the tape; set tinned wire armor layer outside the cross-linked polyolefin sheath.

Description

Marine symmetrical control low-smoke halogen-free signal cable

technical field

The utility model belongs to the technical field of cables, in particular to a ship-used symmetrical control low-smoke and halogen-free signal cable.

Background technique

Existing marine cables do not have low-smoke and halogen-free performance, and have poor anti-interference and signal transmission performance.

Utility model content

The technical problem to be solved by the utility model is to provide a marine symmetrical control low-smoke halogen-free signal cable with excellent anti-interference and signal transmission performance.

The utility model includes two or more sets of communication transmission cores, each set of communication transmission cores includes a pair or more than one pair of insulated wire cores, each of the insulated wire cores includes a tinned copper conductor, tinned copper The wire conductor is covered with cross-linked polyethylene insulation layer; the insulated wire core is twisted and then wrapped with tinned wire shielding layer, and the tinned wire shielding layer and the insulated wire core are filled with halogen-free filler; the communication transmission line core pair Twisting and winding the wrapping tape; filling the halogen-free filler between the wrapping tape and the communication transmission line core; setting a cross-linked polyolefin sheath outside the wrapping tape; and setting a tinned wire armor layer outside the cross-linked polyolefin sheath.

As an improvement of the utility model, it also includes two or more sets of power transmission wire cores, each set of power transmission wire cores includes a tinned copper wire conductor, and the tinned copper wire conductor is covered with a cross-linked polyethylene insulating layer. The vinyl insulation layer wraps the tinned wire shielding layer; the power transmission core and the communication transmission core are twisted to each other.

As a further improvement of the present invention, a halogen-free filling strip is arranged between the communication transmission core and the power transmission core.

The utility model is mainly used for signal transmission and control systems of telecommunication equipment, electrical instruments and various information processing devices in ships and floating buildings on water, and is also suitable for signal transmission and control lines of industrial and mining enterprises such as metallurgy, electric power, and chemical industry. Compared with the existing marine cables, the filler in the utility model is made of halogen-free material, and the sheath is made of cross-linked polyolefin material. The cable has excellent low-smoke, halogen-free and oil-resistant properties; The tinned wire shielding layer is set outside the core, and the wire cores can shield each other, and the wire cores do not interfere with each other when transmitting signals, and the signal transmission performance is good; the tinned wire armor layer set outside the cross-linked polyolefin sheath makes the cable have excellent anti-interference performance.

The power transmission core additionally provided in the cable can carry out power transmission at the same time as communication transmission, so that communication transmission and power transmission can be concentrated in the same cable, thereby saving cable installation space. The tinned wire shielding layer wrapped around the power transmission core also serves to shield the cores from each other.

Halogen-free filling strips are used to ensure the roundness of the core stranding.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

Detailed ways

As shown in FIG. 1 , the utility model includes two sets of communication transmission cores 1 and two sets of power transmission cores 2 . Each group of communication transmission cores 1 includes a pair of insulated wire cores 1-1, and each insulated wire core 1-1 includes a tinned copper wire conductor 1-1-1, and a tinned copper wire conductor 1-1- 1 Outer covering cross-linked polyethylene insulating layer 1-1-2. A pair of insulated wire cores 1-1 is twisted and wrapped with a tinned wire shielding layer 1-2, and a halogen-free filler 1-3 is filled between the tinned wire shielding layer 1-2 and the insulated wire core 1-1 , thus constituting the communication transmission core 1 . Each set of power transmission line cores 2 includes a tinned copper wire conductor 2-1, the tinned copper wire conductor 2-1 is covered with a cross-linked polyethylene insulating layer 2-2, and the outer layer of the cross-linked polyethylene insulating layer 2-2 is Wrap the tinned wire shield 2-3.

Two sets of communication transmission line cores 1 and two sets of power transmission line cores 2 are twisted in pairs and wrapped with tape 3 outside. Halogen-free filler 4 is filled between the wrapping tape 3, the communication transmission line core 1 and the power transmission line core 2; a cross-linked polyolefin sheath 5 is arranged outside the wrapping tape 3, and a tinned wire is arranged outside the cross-linked polyolefin sheath 5 Armor layer6.

In order to ensure the roundness of twisting, a halogen-free filler strip 7 is arranged between the communication transmission core 1 and the power transmission core 2 .

Claims (3)

1. The marine symmetrical control low-smoke halogen-free signal cable is characterized in that it includes two or more sets of communication transmission cores, and each set of communication transmission cores includes a pair or more than one pair of insulated cores, each of which The insulated wire core includes a tinned copper wire conductor, and the tinned copper wire conductor is covered with a cross-linked polyethylene insulating layer; the insulated wire core is twisted and then wrapped with a tinned wire shielding layer, and the tinned wire shielding layer is in contact with the insulating layer. Halogen-free fillers are filled between the cores; the communication transmission cores are twisted and then wrapped with tapes; the halogen-free fillers are filled between the tapes and the communication transmission cores; a cross-linked polyolefin sheath is provided outside the tapes; A tinned wire armor layer is provided outside the polyolefin sheath. 2. The marine symmetrical control low-smoke halogen-free signal cable according to claim 1, characterized in that it also includes two or more sets of power transmission cores, each set of power transmission cores includes a tin-plated copper wire conductor, plated The tin-copper wire conductor is covered with a cross-linked polyethylene insulating layer, and the cross-linked polyethylene insulating layer is covered with a tinned wire shielding layer; the power transmission core and the communication transmission core are mutually twisted. 3. The marine symmetrical control low-smoke halogen-free signal cable according to claim 2, characterized in that: a halogen-free filling strip is arranged between the communication transmission core and the power transmission core.

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