CN202887862U

CN202887862U - Warp resistant fireproof tensile power cable

Info

Publication number: CN202887862U
Application number: CN 201220488141
Authority: CN
Inventors: 赵家玉
Original assignee: TONGLING CITY TONGDU SPECIAL CABLE CO Ltd
Current assignee: TONGLING CITY TONGDU SPECIAL CABLE CO Ltd
Priority date: 2012-09-20
Filing date: 2012-09-20
Publication date: 2013-04-17
Anticipated expiration: 2022-09-20

Abstract

The utility model discloses a warp resistant fireproof tensile power cable, comprising a plurality of groups of conductor, wherein each group of conductor is orderly wrapped with a composite insulating layer and a mica tape to form an insulating wire core, the composite insulating layer orderly comprises a semi-conductive nylon lapped wrapping tape, a polyvinyl chloride insulating layer and a semi-conductive shielding layer, a plurality of insulating wire cores and a reinforcing steel core are intertwisted to form a cable core, the cable core is wrapped with a non-woven fabric lapped wrapping tape, the lapped wrapping tape is wrapped with an inner sheath formed through cross weaving, the inner sheath is wrapped with an outer sheath, and the gap between the cable core and the lapped wrapping tape is filled with a filling layer. The warp resistant fireproof tensile power cable is simple in structure, good in insulating property, warp resistance and tension resistance, and long in service life, and can effectively increase the fireproof property, can undergo the firing of high temperature flame for a long time, and can ensure the use safety, through employing the design of arranging a mica tape outside a composite insulating layer.

Description

The fire-resistant tension power cable of a kind of warp resistance

Technical field

The utility model relates to the electric wire field, is specially the fire-resistant tension power cable of a kind of warp resistance.

Background technology

Along with the fast development of power industry, urban construction, all trades and professions are more and more higher to the requirement of cable.Existing power cable insulation performance is not good; fire resistance is relatively poor; when breaking out of fire; the not flame resistant baking of this class cable is difficult to isolated flame, so flame these protective layers that are easy to ablate; make cable directly be subject to the calcination of flame; there is potential safety hazard, and the anti-twist ability of common power cable and resistance to tension deficiency, twisted for a long time the useful life that shortens easily cable with stretch effects.

The utility model content

The purpose of this utility model provides the fire-resistant tension power cable of a kind of warp resistance, not good to solve power cable insulation performance traditional in the prior art, fire resistance is relatively poor, warp resistance ability and resistance to tension are not enough, be subjected to for a long time distortion, stretch effects to shorten easily cable useful life, cable was affected by the flame calcination easily and causes decreasing insulating when fire occured, and had the problem of potential safety hazard.

For achieving the above object, the technical solution adopted in the utility model is:

The fire-resistant tension power cable of a kind of warp resistance, include the array conductor, it is characterized in that: every group of conductor all is coated with composite insulation layer and mica tape outward successively, and formation insulated wire cores, described composite insulation layer is followed successively by wrapped semiconductive nylon tape from inside to outside, polyvinyl chloride insulation layer and semiconductive shielding layer, several insulated wire cores and the stranded rear formation cable core of reinforcement steel core, described cable core is coated with the nonwoven fabrics twining package tape, described twining package tape is coated with the inner sheath that interlacing consists of, described inner sheath is coated with oversheath, is provided with packed layer between described cable core and the twining package tape.

The fire-resistant tension power cable of described a kind of warp resistance is characterized in that: described oversheath adopts flame-proof polyvinyl chloride to make.

The beneficial effects of the utility model are:

The utility model is simple in structure, adopts the design of composite insulation layer, has effectively promoted the insulation property of power cable; Inner sheath adopts the design of interlacing, and the interlacing structure has larger extending space, has effectively promoted the anti-twist ability of cable; Adopt the design stranded with strengthening steel core of several insulated wire cores, effectively promoted the resistance to tension of cable; Employing arranges the design of mica tape outside composite insulation layer, effectively promoted the fire-resistance property of cable, can stand for a long time the thermal-flame calcination, has ensured the use safety of power cable.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

As shown in Figure 1, the fire-resistant tension power cable of a kind of warp resistance, include array conductor 1, every group of conductor 1 outer composite insulation layer and mica tape 5 of all being coated with successively, and formation insulated wire cores, composite insulation layer is followed successively by wrapped semiconductive nylon tape 2, polyvinyl chloride insulation layer 3 and semiconductive shielding layer 4 from inside to outside, several insulated wire cores and reinforcement steel core 6 stranded rear formation cable cores, cable core is coated with nonwoven fabrics twining package tape 7, twining package tape 7 is coated with the inner sheath 8 that interlacing consists of, inner sheath 8 is coated with oversheath 9, is provided with packed layer 10 between cable core and the twining package tape 7.Oversheath 9 adopts flame-proof polyvinyl chloride to make.

Claims

1. fire-resistant tension power cable of warp resistance, include the array conductor, it is characterized in that: every group of conductor all is coated with composite insulation layer and mica tape outward successively, and formation insulated wire cores, described composite insulation layer is followed successively by wrapped semiconductive nylon tape from inside to outside, polyvinyl chloride insulation layer and semiconductive shielding layer, several insulated wire cores and the stranded rear formation cable core of reinforcement steel core, described cable core is coated with the nonwoven fabrics twining package tape, described twining package tape is coated with the inner sheath that interlacing consists of, described inner sheath is coated with oversheath, is provided with packed layer between described cable core and the twining package tape.

2. the fire-resistant tension power cable of a kind of warp resistance according to claim 1 is characterized in that: described oversheath adopts flame-proof polyvinyl chloride to make.