CN208189229U - A kind of energy conservation high fire-retardance lv power cable - Google Patents

Abstract

The utility model relates to a kind of energy saving high fire-retardance lv power cables, including cable core, the cable core is twisted by a plurality of insulated core, single insulated core includes an intermediate conductor, and LSOH anti-flaming made of extruding outside conductor irradiates polyolefin insulation layer, the conductor and the cross sectional shape of LSOH anti-flaming irradiation polyolefin insulation layer are sector, and a plurality of insulated core is twisted integral in circumferencial direction, to constitute a cable core；It is extruded with the heat-insulated solidified mud of mineral outside cable core, the heat-insulated solidified mud of mineral is outer around double-baging or three layers of fire-retardant band, has one layer of Al-alloy metal protective layer outside fire-retardant band, it is low-smoke flame-retardant polyolefin sheathed to extrude one layer of high-flame-retardanthalogen-free halogen-free outside Al-alloy metal protective layer；The conductor uses solid copper or aluminium alloy；Cable material all uses environment-friendly materials, has many advantages, such as that flame retardant property is excellent, good bending property and save the cost.

Description

A kind of energy conservation high fire-retardance lv power cable

Technical field

The utility model relates to field of cable technology, especially a kind of energy saving high fire-retardance lv power cable.

Background technique

Under the premise of guaranteeing product quality, electricity, which reduces cable outer diameter, can reduce the insulation of cable, armouring and sheath material Usage amount can reduce the outer diameter of finished cable using compact conductor, compact conductor, which generallys use, presses mold to save the cost Carry out it is round press or molding conductor produced by pinch roller, the tightening factor for the conductor that above two mode produces only up to reach To 0.90；Traditional A class flame retardant cable is in order to guarantee the flame retardant property of cable, it is necessary to using fire-retardant insulation, filling, band, Sheath material, the fire proofing used in the prior art such as flame-proof PVC insulation and protective cover material can all be generated to environment after combustion With the poisonous and hazardous gas of the mankind.

Utility model content

For the applicant for the disadvantage in above-mentioned existing production technology, providing is a kind of all using the fire-retardant of environment-friendly materials Performance is excellent, good bending property and the energy saving high fire-retardance lv power cable for saving material cost.

Technical solution used by the utility model is as follows:

A kind of energy conservation high fire-retardance lv power cable, including cable core, the cable core is twisted by four insulated wire cores, single Insulated wire cores include LSOH anti-flaming irradiation polyolefin insulation made of extruding outside intermediate a conductor and conductor The cross sectional shape of layer, the conductor and LSOH anti-flaming irradiation polyolefin insulation layer is sector, and four insulated wire cores are in circumference Direction is twisted integral, to constitute a cable core；Be extruded with the heat-insulated solidified mud of mineral outside cable core, the heat-insulated solidified mud of mineral it is outer around It double-bags or three layers of fire-retardant band, fire-retardant band has one layer of Al-alloy metal protective layer outside, extrude outside Al-alloy metal protective layer One layer of high-flame-retardanthalogen-free halogen-free is low-smoke flame-retardant polyolefin sheathed；The conductor uses solid copper or aluminium alloy.

Its further technical solution is:

The LSOH anti-flaming irradiation polyolefin insulation layer is that 150 DEG C of LSOH anti-flamings irradiate polyolefin insulation material Material.

The heat-insulated solidified mud of mineral uses inorganic metal hydrate for base-material, addition binder, curing agent and softening agent.

The Al-alloy metal protective layer is processed using 5052,5154,5154A aluminium alloy strips by interlocking structure At.

Low-smoke flame-retardant polyolefin sheathed oxygen index (OI) >=36% of the high-flame-retardanthalogen-free halogen-free.

The beneficial effects of the utility model are as follows:

1, the conductor of the utility model uses solid construction, under the premise of meeting conductor resistance, with round stranded conductor phase 3% or more can be reduced than area of section, conductor diameter is reduced by about 10%, the finished cable and use tradition being made into using this technique Conductor structure is compared, and cable insulation about 15% can be saved, and saves sheath material 10%, energy-saving effect is obvious.

2, the utility model irradiates crosslinked polyolefin insulating material using 150 DEG C of irradiation LSOH anti-flamings, compared with prior art In crosslinked polyethylene insulation material, cable operating temperature improves 50 DEG C, and the current-carrying capacity of cable than same size improves 20%.

3, the heat-insulated solidified mud of the mineral of the utility model uses the minerals such as inorganic metal hydrate powder for base-material, adds simultaneously The auxiliary materials such as adding additives, curing agent, softening agent, the heat-insulated solidified mud of mineral have oxygen barrier flame retardant effect, soft at normal temperature It such as plasticine, can be hardened rapidly after by high temperature, prevent flame further to spreading inside cable, oxygen barrier property is better than existing Oxygen barrier material keeps cable fire-retardant up to A class, and material per ton and low smoke, zero halogen resistance polyolefin oxygen barrier compare to subtract reduces by 5000 yuan The above cost.

4, the sheath material of the utility model is the environmental-protection low-smoke halogen-free protective cover material of high fire-retardance, and the resistance of cable not only can be improved Performance is fired, and in the case of fire, cable low smoke and non-toxic is conducive to escape to no damage to human body.

Detailed description of the invention

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

Wherein: 1, conductor；2, LSOH anti-flaming irradiates polyolefin insulation layer；3, the heat-insulated solidified mud of mineral；4, fire-retardant packet Band；5, Al-alloy metal protective layer；6, high-flame-retardanthalogen-free halogen-free is low-smoke flame-retardant polyolefin sheathed.

Specific embodiment

With reference to the accompanying drawing, illustrate specific embodiment of the present utility model.

As shown in Figure 1, the energy saving high fire-retardance lv power cable of the present embodiment, including cable core, cable core is by four insulated wires Core is twisted into, and single insulated core includes LSOH anti-flaming made of extruding outside intermediate a conductor 1 and conductor 1 Polyolefin insulation layer 2 is irradiated, the cross sectional shape that conductor 1 and LSOH anti-flaming irradiate polyolefin insulation layer 2 is sector, and four thoroughly do away with Edge core is twisted integral in circumferencial direction, to constitute a cable core；The heat-insulated solidified mud 3 of mineral, mineral are extruded with outside cable core Heat-insulated solidified mud 3 is outer around double-baging or three layers of fire-retardant band 4, has one layer of Al-alloy metal protective layer 5 outside fire-retardant band 4, aluminium closes One layer of high-flame-retardanthalogen-free halogen-free low-smoke flame-retardant polyolefin sheathed 6 is extruded outside golden coat of metal 5；Conductor 1 uses solid copper or aluminium alloy, The tightening factor of conductor reaches 100%.

It is that 150 DEG C of LSOH anti-flamings irradiate crosslinked polyolefin insulating material that LSOH anti-flaming, which irradiates polyolefin insulation layer 2,.

The heat-insulated solidified mud 3 of mineral uses the minerals such as inorganic metal hydrate powder for base-material, while adding binder, solidification The auxiliary materials such as agent and softening agent, the heat-insulated solidified mud 3 of mineral have oxygen barrier flame retardant effect, at normal temperature soft such as plasticine, by It can be hardened rapidly after high temperature, oxygen barrier property is better than existing oxygen barrier material, and reaching cable, A class is fire-retardant and low smoke, zero halogen inhibits Alkene oxygen barrier layer can subtract compared to material per ton reduces by 5000 yuan of cost or more.

Al-alloy metal protective layer 5 is process using 5052,5154,5154A aluminium alloy strips by interlocking structure.

Oxygen index (OI) >=36% of high-flame-retardanthalogen-free halogen-free low-smoke flame-retardant polyolefin sheathed 6, in the case of fire, the low cigarette of cable without Poison is conducive to people's escape to no damage to human body.

Above description is the explanation to the utility model, is not the restriction to utility model, defined by the utility model Range is within the protection scope of the utility model referring to claim, can make any type of modification.

Claims (5)

1. a kind of energy conservation high fire-retardance lv power cable, including cable core, it is characterised in that: the cable core is twisted by a plurality of insulated core Synthesis, single insulated core include LSOH anti-flaming made of extruding outside intermediate a conductor (1) and conductor (1) It irradiates polyolefin insulation layer (2), the cross sectional shape of the conductor (1) and LSOH anti-flaming irradiation polyolefin insulation layer (2) is Sector, a plurality of insulated core is twisted integral in circumferencial direction, to constitute a cable core；It is heat-insulated solid that mineral are extruded with outside cable core Change mud (3), the heat-insulated solidified mud of mineral (3) around double-baging or three layers of fire-retardant band (4), has one layer of aluminium to close outside outside fire-retardant band (4) Golden coat of metal (5), it is low-smoke flame-retardant polyolefin sheathed (6) that Al-alloy metal protective layer (5) extrudes one layer of high-flame-retardanthalogen-free halogen-free outside； The conductor (1) uses solid copper or aluminium alloy.

2. a kind of energy saving high fire-retardance lv power cable as described in claim 1, it is characterised in that: the LSOH anti-flaming Irradiating polyolefin insulation layer (2) is that 150 DEG C of LSOH anti-flamings irradiate crosslinked polyolefin insulating material.

3. a kind of energy saving high fire-retardance lv power cable as described in claim 1, it is characterised in that: the mineral are heat-insulated solidified Mud (3) uses inorganic metal hydrate for base-material, addition binder, curing agent and softening agent.

4. a kind of energy saving high fire-retardance lv power cable as described in claim 1, it is characterised in that: the Al-alloy metal is protected Sheath (5) is process using 5052,5154,5154A aluminium alloy strips by interlocking structure.

5. a kind of energy saving high fire-retardance lv power cable as described in claim 1, it is characterised in that: the high-flame-retardanthalogen-free halogen-free is low Oxygen index (OI) >=36% of smoke flame-retardant polyolefin sheathed (6).