CN203689990U

CN203689990U - Insulating flame-retardant power cable used for coal mine

Info

Publication number: CN203689990U
Application number: CN201320859509.2U
Authority: CN
Inventors: 王晓强
Original assignee: JIANGSU JINNIU WIRES AND CABLES GROUPS CO Ltd
Current assignee: JIANGSU JINNIU WIRES AND CABLES GROUPS CO Ltd
Priority date: 2013-12-24
Filing date: 2013-12-24
Publication date: 2014-07-02
Anticipated expiration: 2023-12-24

Abstract

The utility model relates to an insulating flame-retardant power cable used for coal mine, comprising a cable core and an oversheath; wherein the cable core consists of one or more than one wire core, the each wire core consists of a conductor, a crosslinking EVA conductor shielding layer, a crosslinking polyethylene insulating layer, a crosslinking EVA insulating shielding layer and a copper strip shielding layer from interior to exterior, a ceramic silicone rubber composite belt is wrapped outside the cable core, fireproof mud is filled between the wire cores as well as between the ceramic silicone rubber composite belt and the cable core, glass fibre non-woven fabric is wrapped outside the ceramic silicone rubber composite belt, a galvanizing wire rope armor layer is wrapped outside the glass fibre non-woven fabric, water blocking glue is coated inside and outside the galvanizing wire rope armor layer, and the oversheath is wrapped outside the galvanizing wire rope armor layer. The insulating flame-retardant power cable used for coal mine of the utility model has the beneficial effects that: the insulating flame-retardant power cable is excellent in fire resistance and high in security; the water blocking glue coated outside the galvanizing wire rope armor layer can effectively block water in a humid environment of the coal mine, thereby protecting the armor layer.

Description

Colliery flame-resistant insulation power cable

Technical field

The utility model relates to a kind of colliery flame-resistant insulation power cable.

Background technology

In coal mining process, the usually existence with biogas in coal seam, therefore power cable is had to very high requirement to anti-knock properties and anti-flammability, common power cable cannot use in colliery, and narrow space in colliery, the pernicious gas sending after cable fire is very easily assembled, and not only can hinder the escape of staff in ore deposit, but also can directly endanger the life of staff in ore deposit.

Utility model content

Technical problem to be solved in the utility model is: a kind of colliery flame-resistant insulation power cable is provided, has higher refractory ability.

The utility model solves the technical scheme that its technical problem adopts: a kind of colliery flame-resistant insulation power cable, comprise cable core and oversheath, cable core is made up of more than one and one core, core is from the inside to the outside by conductor, crosslinked EVA conductor shield, crosslinked polyetylene insulated layer, crosslinked EVA insulation screen, copper strip shielding layer forms, wrapped ceramic silicon rubber composite band outside cable core, between core and between ceramic silicon rubber composite band and cable core, filling anti-chamotte, in ceramic silicon rubber composite band outer wrapping glass fibre non-woven, glass fibre non-woven outer wrapping galvanized steel wire rope armour, inside and outside galvanized steel wire rope armour, apply the glue that blocks water, oversheath is wrapped in outside galvanized steel wire rope armour.

Conductor is the stranded flexible conductor forming of copper wire, and oversheath is fire retardant polyolefin oversheath.

The beneficial effects of the utility model are: fire resistance excellence, and safe, and also the outer glue that blocks water applying of galvanized steel wire rope armour can, under the wet environment in colliery, effectively block water, protection armour.

Accompanying drawing explanation

Fig. 1 structural representation of the present utility model;

In figure: 1. oversheath; 2. core; 3. ceramic silicon rubber composite band; 4. anti-chamotte; 5. glass fibre non-woven; 6. galvanized steel wire rope armour.

Embodiment

As shown in Figure 1, a kind of colliery flame-resistant insulation power cable, comprise cable core and oversheath 1, cable core is made up of more than one and one core 2, core 2 is from the inside to the outside by conductor, crosslinked EVA conductor shield, crosslinked polyetylene insulated layer, crosslinked EVA insulation screen, copper strip shielding layer forms, wrapped ceramic silicon rubber composite band 3 outside cable core, between core 2 and between ceramic silicon rubber composite band 3 and cable core, filling anti-chamotte 4, in ceramic silicon rubber composite band 3 outer wrapping glass fibre non-woven 5, glass fibre non-woven 5 outer wrapping galvanized steel wire rope armours 6, at the inside and outside glue that blocks water that applies of galvanized steel wire rope armour 6, oversheath 1 is wrapped in outside galvanized steel wire rope armour 6.

Conductor is the stranded flexible conductor forming of copper wire, and oversheath 1 is fire retardant polyolefin oversheath.

Claims

1. a colliery flame-resistant insulation power cable, it is characterized in that: comprise cable core and oversheath (1), described cable core is by one and above core (2) formation, core (2) is from the inside to the outside by conductor, crosslinked EVA conductor shield, crosslinked polyetylene insulated layer, crosslinked EVA insulation screen, copper strip shielding layer forms, wrapped ceramic silicon rubber composite band (3) outside cable core, between core (2) and between ceramic silicon rubber composite band (3) and cable core, filling anti-chamotte (4), in ceramic silicon rubber composite band (3) outer wrapping glass fibre non-woven (5), glass fibre non-woven (5) outer wrapping galvanized steel wire rope armour (6), at the inside and outside glue that blocks water that applies of galvanized steel wire rope armour (6), oversheath (1) is wrapped in outside galvanized steel wire rope armour (6).

2. colliery according to claim 1 flame-resistant insulation power cable, is characterized in that: described conductor is the stranded flexible conductor forming of copper wire, and oversheath (1) is fire retardant polyolefin oversheath.