CN201177994Y - computer cable - Google Patents

Abstract

The utility model discloses an environment-friendly, flame-retardant, safe and reliable computer cable in the technical field of cables, which includes multi-component screen cores, and each component screen core includes at least a pair of insulated cores, and each The insulated wire core includes a conductor, and an insulating layer is coated on the outside of the conductor; a flame-retardant wrapping tape is wrapped around the above-mentioned at least one pair of insulated wire cores, and a metal shielding layer is arranged outside the flame-retardant wrapping tape, thereby forming a split-screen core; The above-mentioned multi-component screen cores are wrapped with another flame-retardant wrapping tape, and the flame-retardant filling is filled between the multi-component screen cores and between the split-screen cores and another flame-retardant wrapping tape. The above-mentioned additional flame-retardant wrapping tape is coated with a metal shielding layer, and the metal shielding layer is wrapped with a flame-retardant inner sheath, and a metal armor layer is arranged outside the flame-retardant inner sheath, and the outer coating of the metal armor layer is low. Smoke-free, halogen-free, flame-retardant outer sheath.

Description

computer cable

technical field

The utility model belongs to the technical field of cables, in particular to a computer cable.

Background technique

Existing computer cables do not have flame-retardant properties, and the safety and reliability of the cables are low in a fire environment, so they are not suitable for places with dense population and high requirements for equipment safety and reliability.

Utility model content

The technical problem to be solved by the utility model is to provide an environment-friendly, flame-retardant, safe and reliable computer cable.

The utility model includes multi-component screen cores, each component screen core includes at least a pair of insulated wire cores, and each insulated wire core includes a conductor, and an insulating layer is coated on the outside of the conductor; at least one pair of insulated wire cores The wire core is wrapped with a flame-retardant wrapping tape, and a metal shielding layer is arranged outside the flame-retardant wrapping tape to form a split-screen core; the above-mentioned multi-component screen core is wrapped with another flame-retardant wrapping tape, and in the The flame-retardant filler is filled between the multi-component screen cores, and between the split-screen core and another flame-retardant wrapping tape; the above-mentioned additional flame-retardant wrapping tape is covered with a metal shielding layer, and the metal shielding layer A flame-retardant inner sheath is wrapped, and a metal armor layer is arranged outside the flame-retardant inner sheath, and the metal armor layer is covered with a low-smoke, halogen-free flame-retardant outer sheath.

Compared with the existing computer cables, because the outer sheath of the utility model is made of low-smoke halogen-free flame-retardant materials, and the inner sheath and the tape have flame-retardant properties, and the cable is filled with flame-retardant fillers, Therefore, the utility model has excellent flame retardant performance, which effectively prevents the escape of smoke and toxic and harmful gases generated by burning in the event of a fire accident in the control line, improves the safety, reliability and service life of the cable, and is especially suitable for use as a Places that are dense and require high equipment safety and reliability, such as stations, hospitals, subways, residential and office buildings, etc.

Description of drawings

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

Detailed ways

As shown in Figure 1, the present embodiment includes four-component screen cores 1, each component screen core 1 includes a pair of insulated cores 1-1, and each insulated core 1-1 includes a conductor 1 -1-1, the conductor 1-1-1 is coated with a cross-linked polyethylene insulating layer 1-1-2. The above pair of insulated wire cores 1-1 are wrapped with glass fiber flame-retardant wrapping tape 1-2, and a copper wire braided shielding layer 1-3 is arranged outside the glass fiber flame-retardant wrapping tape 1-2, thereby forming a split screen line Core 1. Each set of screen cores 1 in this embodiment includes only one pair of insulated cores 1 - 1 , preferably, may also include multiple pairs of insulated cores 1 - 1 .

The four-component screen core 1 is wrapped with a glass fiber flame-retardant wrapping tape 2, and between the four-component screen cores 1, and between the split-screen core 1 and the glass fiber flame-retardant wrapping tape 2 Filled with glass fiber flame retardant filler3.

The glass fiber flame-retardant wrapping tape 2 is covered with a copper wire braided shielding layer 4, the copper wire braided shielding layer 4 is wrapped with a flame-retardant inner sheath 5, and a copper tape armor layer 6 is arranged outside the flame-retardant inner sheath 5. The copper tape armor layer 6 is covered with a low-smoke, halogen-free, flame-retardant outer sheath 7.

Claims (1)

1, computer cable, it is characterized in that: comprise multi-component screen core (1), every component screen core (1) comprises at least one pair of insulated cores (1-1), each insulated core ( 1-1) It includes a conductor (1-1-1), and an insulating layer (1-1-2) is covered outside the conductor (1-1-1); at least one pair of insulated cores (1-1) Flame-retardant wrapping tape (1-2) is wrapped around the outside, and a metal shielding layer (1-3) is arranged outside the flame-retardant wrapping tape (1-2), thereby forming a split-screen core (1); the above-mentioned multi-component screen The core (1) is wrapped with another flame-retardant wrapping tape (2), and between the multi-component screen cores (1) and the split-screen core (1) and another flame-retardant wrap Flame-retardant fillers (3) are filled between the belts (2); the above-mentioned additional flame-retardant wrapping tape (2) is covered with a metal shielding layer (4), and the metal shielding layer (4) is wrapped with a flame-retardant inner sheath ( 5), the flame-retardant inner sheath (5) is provided with a metal armor layer (6), and the metal armor layer (6) is covered with a low-smoke, halogen-free flame-retardant outer sheath (7).

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