CN208753036U - A kind of composite fire retardant insulating cable - Google Patents

Abstract

The utility model discloses a kind of composite fire retardant insulating cable, including multi-cable conducting wire, and the cable conductor includes internal cable core, is coated with fibreglass outer layers on the outside of the cable core, mineral protective layer is socketed on the outside of the fibreglass outer layers.The cable conductor is bonded to each other setting, and the outside of cable conductor is equipped with armor and is wrapped, the cable conductor is bonded the gap between position with armor and is equipped with barrier rubber, high strength fibre silk is equipped in the barrier rubber, the gap between the barrier rubber and cable conductor and between cable conductor and cable conductor is filled with insulating materials.The outside of the armor is equipped with shielded layer, and the external sheath of the shielded layer has braiding layer, and the outside of the braiding layer is equipped with fibrous layer, is pasted with flame-retardant layer on the outside of the fibrous layer, is enclosed with insulating layer on the outside of the flame-retardant layer.

Description

A kind of composite fire retardant insulating cable

Technical field

The utility model relates to wire and cable field, especially a kind of composite fire retardant insulating cable.

Background technique

Usually by several or the cable of similar rope that several groups of conducting wires (every group at least two) are twisted, every group of conducting wire Between mutually insulated, and be often twisted into around a center, entire outside is surrounded by the coating of high-insulation.Cable has interior logical Electricity, the feature of external insulation.With the development of the times electric power using more and more extensive, therefore it is required that the technology of cable machinery will be with Day improves, and cable industry is not only possessing extensive market now, can not also estimate in following market space.Electricity at this stage Cable can satisfy basic power demands, and certain convenience is brought to people's lives, but remains one in use The deficiency and technological deficiency of fixed aspect: high temperature resistant and flame retardant effect are poor, and cable is easy to aging when in use, to influence making for cable With the service life, and dieseling easily occurs for traditional cable influence by voltage, and when use is easy to bring danger, is easy to people's Property and life zone threaten.

Utility model content

In view of the above shortcomings of the prior art, the utility model provides a kind of composite fire retardant insulating cable.

A kind of in order to achieve the above purposes, the technical solution adopted by the utility model is: composite fire retardant insulating cable, including it is more Root cable conductor, the cable conductor include internal cable core, are coated with fibreglass outer layers on the outside of the cable core, Mineral protective layer is socketed on the outside of the fibreglass outer layers.The cable conductor is bonded to each other setting, and cable conductor Outside is equipped with armor and is wrapped, and the cable conductor is bonded the gap between position with armor and is equipped with barrier rubber, High strength fibre silk is equipped in the barrier rubber, between barrier rubber and the cable conductor and cable conductor is led with cable Gap between line is filled with insulating materials.The outside of the armor is equipped with shielded layer, and the external sheath of the shielded layer has Braiding layer, the outside of the braiding layer are equipped with fibrous layer, are pasted with flame-retardant layer on the outside of the fibrous layer, the flame-retardant layer it is outer Side is enclosed with insulating layer.

Preferably, the material of the insulating layer and insulating materials is polyvinyl chloride elastomer.

Preferably, the high strength fibre silk is made of high-strength polyvinyl alcohol fiber.

Preferably, the material of the flame-retardant layer is aluminium oxide.

Preferably, the shielded layer is formed using copper wire metal wire knitted, and is interconnected to form between the copper wire woven Diamond shaped.

Preferably, the fibrous layer is that polyimide fiber weaves.

The utility model structure is simple, can reduce the phase mutual friction between cable conductor, and electricity by obstructing rubber It is equipped with the glass layer of isolation temperature inside cable conducting wire, cable core spontaneous combustion can be prevented；Meanwhile it obstructing high-strength in rubber Degree fiber filament further enhances the structural strength of the utility model, not only effectively fire-retardant, moreover it is possible to bear certain resistance to compression tension Ability.The interference that not will receive external magnetic field or electric field by electric energy or communication signal by shielded layer, allows transmission quality to mention On the one hand height allows cable conductor to be fixed in addition, being filled using insulating materials, it will not be easy to extract out from inside, In addition, also improving insulation performance.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

In figure, 1- cable conductor；2- obstructs rubber；3- high strength fibre silk；4- insulating materials；5- armor；6- shielding Layer；7- braiding layer；8- fibrous layer；9- flame-retardant layer；10- insulating layer；11- cable core；12- fibreglass outer layers；13- mineral are protected Sheath.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly, it is fully described by, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

As shown in Figure 1, a kind of composite fire retardant insulating cable, including multi-cable conducting wire 1, the cable conductor 1 include interior The cable core 11 in portion, is coated with fibreglass outer layers 12 on the outside of the cable core 11, the fibreglass outer layers 12 it is outer Side is socketed with mineral protective layer 13.The cable conductor 1 is bonded to each other setting, and the outside of cable conductor 1 will equipped with armor 5 It is wrapped, and the cable conductor 1 is bonded the gap between position with armor 5 and is equipped with barrier rubber 2, the barrier rubber 2 Interior to be equipped with high strength fibre silk 3, the high strength fibre silk 2 is made of high-strength polyvinyl alcohol fiber.The barrier rubber 2 with Gap between cable conductor 1 and between cable conductor 1 and cable conductor 1 is filled with insulating materials 4.The armor 5 Outside is equipped with shielded layer 6, is connected with each other shape between the copper wire that the shielded layer 6 is formed using copper wire metal wire knitted, and woven Diamondwise shape.The external sheath of the shielded layer 6 has braiding layer 7, and the outside of the braiding layer 7 is equipped with fibrous layer 8, the fiber Layer 8 weaves for polyimide fiber.The outside of the fibrous layer 8 is pasted with flame-retardant layer 9, and the material of the flame-retardant layer 9 is Aluminium oxide.The outside of the flame-retardant layer 9 is enclosed with insulating layer 10, and the material of the insulating layer 10 and insulating materials 4 is polychlorostyrene second Alkene elastomer.

The utility model structure is simple, can reduce the phase mutual friction between cable conductor 1 by obstructing rubber 2, and It is equipped with the glass layer 12 of isolation temperature inside cable conductor 1,11 spontaneous combustion of cable core can be prevented；Meanwhile obstructing rubber 2 Interior high strength fibre silk 3 further enhances the structural strength of the utility model, not only effectively fire-retardant, moreover it is possible to bear certain Resistance to compression tensile capacity.It allows electric energy or communication signal not to will receive the interference of external magnetic field or electric field by shielded layer 6, allows biography Transmission quality improves, in addition, being filled using insulating materials 4, cable conductor 1 is on the one hand allowed to be fixed, it will not be easy It is extracted out from inside, in addition, also improving insulation performance.

Claims (6)

1. a kind of composite fire retardant insulating cable, it is characterised in that: including multi-cable conducting wire, the cable conductor includes internal Cable core, the cable core outside are coated with fibreglass outer layers, are socketed with mineral on the outside of the fibreglass outer layers Protective layer；The cable conductor is bonded to each other setting, and the outside of cable conductor is equipped with armor and is wrapped, the cable Conducting wire is bonded the gap between position with armor and is equipped with barrier rubber, is equipped with high strength fibre silk, institute in the barrier rubber The gap between barrier rubber and cable conductor and between cable conductor and cable conductor is stated filled with insulating materials；The armour The outside for filling layer is equipped with shielded layer, and the external sheath of the shielded layer has braiding layer, and the outside of the braiding layer is equipped with fibrous layer, It is pasted with flame-retardant layer on the outside of the fibrous layer, is enclosed with insulating layer on the outside of the flame-retardant layer.

2. a kind of composite fire retardant insulating cable according to claim 1, it is characterised in that: the insulating layer and insulating materials Material be polyvinyl chloride elastomer.

3. a kind of composite fire retardant insulating cable according to claim 1, it is characterised in that: the high strength fibre silk by High-strength polyvinyl alcohol fiber is constituted.

4. a kind of composite fire retardant insulating cable according to claim 1, it is characterised in that: the material of the flame-retardant layer is oxygen Change aluminium.

5. a kind of composite fire retardant insulating cable according to claim 1, it is characterised in that: the shielded layer is using copper wire gold Belong to and is interconnected to form diamond shaped between the copper wire that silk is knitted to form, and weaves.

6. a kind of composite fire retardant insulating cable according to claim 1, it is characterised in that: the fibrous layer is polyimides Fibrage forms.