CN206282639U - A kind of low-smoke zero-halogen fire-resistant cable - Google Patents

Abstract

The utility model provides a kind of low-smoke zero-halogen fire-resistant cable, it is characterised in that：Inner sheath is provided with outside cable core, inner sheath inner surface setting has Ceramic silicon rubber layer, Ceramic silicon rubber layer inner surface setting has insulating barrier, insulating barrier inner surface setting has inner shield, inner shield is internally provided with some copper cores, copper core outer surface is provided with tin layers, tin layers outer surface is provided with aluminium lamination, body exterior is provided with cross-linked polyethylene layer, cross-linked polyethylene layer inner surface setting has oxygen barrier layer, oxygen barrier layer inner surface setting has steel wire armor layer, steel wire armor layer inner surface setting has mica tape, mica tape inner surface setting has inner cushion layer, inner cushion layer inner surface setting has belting layer, belting layer is internally provided with glass fibre packed layer, by by using the smoke amount of crosslinked polyethylene reduction cable fire, avoid causing secondary hazards, simultaneously by the design of multiple layer refractory, spreading for the intensity of a fire can effectively be prevented.

Description

A kind of low-smoke zero-halogen fire-resistant cable

Technical field

The utility model is related to electricity, the essential electronic element that metal wire or metal tape make, espespecially a kind of low smoke and zero halogen Fire-resisting cable.

Background technology

Cable is to be placed in the insulated conductor constituted in sealing sheath by the conducting wire center of one or more mutually insulated, outside it Protection coating can be added, for transmitting, distributing electric energy or transmission electric signal, it is mainly cable dimension with the difference of common wiring Larger, structure is more complicated.

Cable is mainly made up of following 4 part, 1. conducting wire center：Use high conductivity material（Copper or aluminium）It is made, according to deposited If requirement of the use condition to cable softness, the every line heart may be formed by solid conductor or multiple conducting wires are stranded, 2. absolutely Edge layer：Insulating materials as cable should have an insulaion resistance high, breakdown field strength high, low dielectric loss and low Dielectric constant, in cable commonly use insulating materials have oil-paper, polyvinyl chloride, polyethylene, crosslinked polyethylene, rubber etc., electricity Cable is often classified with insulating materials, such as oil-impregnated paper insulation cable, polyvinyl chloride cable, twisted polyethylene cable etc., 3. sealing shield Set：Protect protection insulated wire heart from the damage of machinery, moisture, moisture, chemical substance, light etc., for the insulation of moisture-sensitive, typically adopt With lead or aluminium extrusion sealing sheath, coating is 4. protected：It is used to protect sealing sheath from mechanical damage, typically using galvanized steel Band, steel wire or copper strips, copper wire etc. are surrounded outside sheath as armor（Claim armored cable）, armor is while playing electric field shielding and preventing The only effect of external electromagnetic wave interference, in order to avoid steel band, steel wire are corroded by surrounding media, is typically coated with drip outside them Blue or green or wrapping macerated jute layer or extruded polyethylene, polyvinyl chloride set.

Due to using PVC existing common cable insulating barrier and oversheath, causing to cause smoke big when fire, combustion more Burn generation sour gas and titanic peril is caused to rescue, while the filler of common cable is generally paper products, there is no supportive Can, fire resisting low intensity.

The content of the invention

Regarding to the issue above the utility model provide a kind of low-smoke zero-halogen fire-resistant cable, the product structure reasonable standard, By by using the smoke amount of crosslinked polyethylene reduction cable fire, it is to avoid cause secondary hazards, while passing through multiple layer refractory material The design of material, can effectively prevent spreading for the intensity of a fire.

To solve the above problems, the utility model provides a kind of low-smoke zero-halogen fire-resistant cable, including body, cable core, Cross-linked polyethylene layer, oxygen barrier layer, steel wire armor layer, mica tape, copper core, aluminium lamination, tin layers, it is characterised in that：Body interior is set There are some cables core, inner sheath is provided with outside cable core, inner sheath inner surface setting has Ceramic silicon rubber layer, ceramic SiClx Rubber layer inner surface setting has insulating barrier, and insulating barrier inner surface setting has inner shield, and inner shield is internally provided with some copper cores, copper Core outer surface is provided with tin layers, and tin layers outer surface is provided with aluminium lamination, and body exterior is provided with cross-linked polyethylene layer, crosslinked polyethylene Layer inner surface setting has oxygen barrier layer, and oxygen barrier layer inner surface setting has steel wire armor layer, and steel wire armor layer inner surface setting has mica Band, mica tape inner surface setting has inner cushion layer, and inner cushion layer inner surface setting has belting layer, and belting layer is internally provided with glass fibre Packed layer.

Used as further improvement of the utility model, the body central position is provided with strengthening core, is set on strengthening core There are some ceramic wafers, heat insulating coat is provided with ceramic wafer.

Operation principle：

Product of the present utility model is provided with rational layout designs, and simple structure sets by outside steel wire armor layer Putting oxygen barrier layer has good cooling flame retardant effect, while steel wire armor layer can be effectively protected the integrality of cable, by many What the design of layer fire proofing can effectively prevent the intensity of a fire spreads degree, can effectively be risen by the design of glass fibre packed layer To good supporting role, while the design by ceramic wafer will be isolated between each cable core, cable core is effectively prevented Overlap joint causes spreading for the intensity of a fire, and copper core outer surface is provided with the aluminium lamination of low melting point, can be effectively to the absorption of heat right Conduction copper core carries out good protection, and the design of tin layers effectively can combine the two.

Brief description of the drawings

Fig. 1 is a kind of low-smoke zero-halogen fire-resistant cable cross-section figure；

Fig. 2 is copper core structural representation set by a kind of low-smoke zero-halogen fire-resistant cable；

1- strengthening cores in figure；2- copper cores；3- tin layers；4- aluminium laminations；5- bodies；6- cross-linked polyethylene layers；7- oxygen barrier layers；8- steel Silk armor；9- mica tapes；10- inner cushion layers；11- belting layers；12- inner sheaths；13- Ceramic silicon rubbers layer；14- insulating barriers； 15- ceramic wafers；16- glass fibre packed layers；17- heat insulating coats；18- inner shields；19- cables core.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole realities Apply example, based on the embodiment in the utility model, those of ordinary skill in the art under the premise of creative work is not made, institute The every other embodiment for obtaining, belongs to the utility model protection domain.

Embodiment 1

A kind of low-smoke zero-halogen fire-resistant cable as shown in Figure 1, including body 5, cable core 19, cross-linked polyethylene layer 6, oxygen barrier layer 7, steel wire armor layer 8, mica tape 9, copper core 2, aluminium lamination 4, tin layers 3, it is characterised in that：Body 5 is internally provided with some cables core 19, inner sheath 12 is provided with outside cable core 19, the inner surface setting of inner sheath 12 has Ceramic silicon rubber layer 13, ceramic SiClx rubber The inner surface setting of glue-line 13 has insulating barrier 14, and the inner surface setting of insulating barrier 14 has inner shield 18, if inner shield 18 is internally provided with Dry copper core 2, the outer surface of copper core 2 is provided with tin layers 3, and the outer surface of tin layers 3 is provided with aluminium lamination 4, and the outside of body 5 sets crosslinking poly- second Alkene layer 6, the inner surface setting of cross-linked polyethylene layer 6 has oxygen barrier layer 7, and the inner surface setting of oxygen barrier layer 7 has steel wire armor layer 8, steel wire armour The dress inner surface setting of layer 8 has mica tape 9, and the inner surface setting of mica tape 9 has inner cushion layer 10, and the inner surface setting of inner cushion layer 10 has band Layer 11, belting layer 11 is internally provided with glass fibre packed layer 16, and the center of the body 5 is provided with strengthening core 1, strengthening core Some ceramic wafers 15 are provided with 1, heat insulating coat 17 is provided with ceramic wafer 15, product of the present utility model is provided with reasonably Layout designs, simple structure has good cooling flame retardant effect, while steel by setting oxygen barrier layer outside steel wire armor layer Silk armor can be effectively protected the integrality of cable, and spreading for the intensity of a fire can be effectively prevented by the design of multi-layer fire-retarded material Degree, can effectively play good supporting role, while the design for passing through ceramic wafer by the design of glass fibre packed layer To be isolated between each cable core, effectively prevent cable core from overlapping and cause spreading for the intensity of a fire, and set in copper core outer surface Be equipped with the aluminium lamination of low melting point, effectively to the absorption of heat can carry out good protection to conduction copper core, and tin layers design Effectively the two can be combined.

Claims (2)

1. a kind of low-smoke zero-halogen fire-resistant cable, including body（5）, cable core（19）, cross-linked polyethylene layer（6）, oxygen barrier layer（7）, Steel wire armor layer（8）, mica tape（9）, copper core（2）, aluminium lamination（4）, tin layers（3）, it is characterised in that：Body（5）It is internally provided with Some cables core（19）, cable core（19）Outside is provided with inner sheath（12）, inner sheath（12）Inner surface setting has ceramic SiClx Rubber layer（13）, Ceramic silicon rubber layer（13）Inner surface setting has insulating barrier（14）, insulating barrier（14）In inner surface setting has Shielding（18）, inner shield（18）It is internally provided with some copper cores（2）, copper core（2）Outer surface is provided with tin layers（3）, tin layers（3）Outward Surface is provided with aluminium lamination（4）, body（5）Outside is provided with cross-linked polyethylene layer（6）, cross-linked polyethylene layer（6）Inner surface setting There is oxygen barrier layer（7）, oxygen barrier layer（7）Inner surface setting has steel wire armor layer（8）, steel wire armor layer（8）Inner surface setting has mica Band（9）, mica tape（9）Inner surface setting has inner cushion layer（10）, inner cushion layer（10）Inner surface setting has belting layer（11）, belting layer （11）It is internally provided with glass fibre packed layer（16）.

2. a kind of low-smoke zero-halogen fire-resistant cable according to claim 1, it is characterised in that：The body（5）Centre bit is installed It is equipped with strengthening core（1）, strengthening core（1）On be provided with some ceramic wafers（15）, ceramic wafer（15）On be provided with heat insulating coat（17）.