CN203301774U - Double-conductor and double-heating ground heating cable - Google Patents

Abstract

The utility model belongs to the heating cable field, and discloses a double-conductor and double-heating ground heating cable which comprises an insulating wire core and a halogen-free low-smoke polyolefin sheath layer, wherein the insulating wire core comprises two conductors which are wrapped up sequentially by a ceramic silica gel insulating layer and a fiberglass band layer, the insulating wire core is sequentially wrapped up by an aluminum foil layer and a tin-coated copper wire braiding layer, and the halogen-free low-smoke polyolefin sheath layer is arranged outmost. The double-conductor and double-heating ground heating cable solves the problem that a conventional household ground heating cable is low in heatproof level, poor in ageing resistance and flame resistance, short in service lifetime, easily causes control failure and safety risk and is long in heatproof level, excellent in ageing resistance and flame resistance, long in service lifetime and convenient for installation.

Description

Two pair heating floor heating cables of leading

Technical field

The utility model belongs to the heating cable field, is specifically related to a kind of two two heating floor heating cables of leading.

Background technology

At present, in the winter of northern China urban area, the main heating radiator that relies on, and in the city of southern area, without any warming installation, family's heating, only have by air-conditioning or electric heater and warm oneself, and air-conditioning is expensive, electric heater is warmed oneself and is limited in scope, therefore, and in recent years, floor heating grows up at Shelter in South China Cities, floor heating is divided into the electric floor heating of warming up of water ground, and electric floor heating has again heating cable heating, Electric radiant Heating Film heating and carbon fiber electrically heated minute, wherein, heating cable is more common, and is also more convenient.

Existing heating cable includes and singly leads heating cable and two heating cable of leading, two heating cable of leading have comprised two two heating cable of leading, two pair heating cable of leading generally include insulated wire cores and restrictive coating, insulated wire cores is two-conductor outer wrapping insulating barrier, insulating barrier generally adopts polyvinyl chloride layer or crosslinked polyethylene layer, although polyvinyl chloride insulation layer insulation effect is good, its thermal stability and ageing resistance are poor, thus aging, become fragile; Although crosslinked polyetylene insulated layer has changed its mechanical property, environmental stress cracking resistance, resistance to corrosive chemicals energy and creep resistance on poly basis, but its heat resistance and ageing resistace are still lower, in addition, common restrictive coating fire protecting performance is poor, cause the ageing resistace of cable poor, fire line is poor and useful life is short, the long-term use, be prone to and control fault and malfunctioning, causes potential safety hazard.

The utility model content

The technical problems to be solved in the utility model be low for existing household ground heating temperature resistant grade, ageing resistace is low, fire protecting performance is poor and useful life is short, be prone to and control fault and malfunctioning, cause the defect of potential safety hazard, provide that a kind of temperature resistant grade is high, ageing resistace good, fire protecting performance is good and long service life, two two heating floor heating cables of leading easy for installation.

In order to solve the problems of the technologies described above, the utility model provides following technical scheme: two pair heating floor heating cables of leading, comprise insulated wire cores, low smoke, zero halogen polyolefin jacket layer, insulated wire cores comprises two conductors and conductor outer ceramic silicone insulation layer and the glass fiber belt of parcel successively, insulated wire cores is wrapped up aluminium foil layer and tincopper fuse wire braided armor outward successively, and low smoke, zero halogen polyolefin jacket layer is outermost layer.

Adopt two pair heating floor heating cables of leading of technical solutions of the utility model, conductor is nichrome or iron network aluminium alloy, becomes the floor heating heater; Low smoke, zero halogen polyolefin jacket layer can absorb the heat that decompose to produce, reduce system temperature, reaches flame retardant effect, and the smoking set that discharges has the characteristics of low concentration asepsis environment-protecting, effectively reduces the danger that floor heating brings when overheated; Conductor outer wrapping pottery flower silicone insulation layer forms two heaters, under ceramic silicone insulation layer normal temperature state, has possessed the performance of common silica gel, softness, and when high temperature, can be cured as hard pottery, play fireproofing function; The glass fiber belt guarantees the flexibility of heating cable on the one hand, also has on the one hand good fire protecting performance; Aluminium foil layer is screen, shield electromagnetic; Tincopper fuse wire braided armor is the ground protection line, and its cancellated density is 85%, both has been conducive to strengthen the aluminium foil layer shielding, has guaranteed again the flexibility of heating cable, is beneficial to and installs and uses; In addition, the ageing resistace of ceramic silicone insulation layer, glass fiber belt and tincopper fuse wire braided armor is good, long service life.

Further, described glass fiber belt comprises glass fiber layer and glass fabric layer.The glass fiber layer is low than the density of glass fabric layer, and glass fiber and glass cloth all have excellent waterproof, fire prevention, insulation and anti ageing property, has improved heat resistance and the ageing resistace of heating cable.

The accompanying drawing explanation

Below in conjunction with drawings and Examples, technical solutions of the utility model are further illustrated:

Fig. 1 is the two sectional schematic diagrams of leading two heating floor heating cable embodiment of the utility model.

Embodiment

As shown in Figure 1, the two pair heating floor heating cables of leading of the utility model, comprise insulated wire cores, low smoke, zero halogen polyolefin jacket layer 3, insulated wire cores comprises two conductors 1 and conductor 1 outer ceramic silicone insulation layer 2 and the glass fiber belt of parcel successively, the glass fiber belt is wrapped in outside glass fiber layer 4 by glass fabric layer 5, insulated wire cores is wrapped up aluminium foil layer 6 and tincopper fuse wire braided armor 7 outward successively, and low smoke, zero halogen polyolefin jacket layer 3 is outermost layer.

in specific implementation process, two conductors 1 all adopt nichrome as heater, conductor 1 is outer to be extruded or wrapped ceramic silicone insulation layer 2, wrapped glass fiber layer 4 and glass fabric layer 5 again, form and have the insulated wire cores of two conductors 1, outside insulated wire cores, indulge again aluminium foil layer 6, braiding tincopper fuse wire braided armor 7, outermost layer extrudes low smoke, zero halogen polyolefin jacket layer 3, make two two heating floor heating cables of leading, heating cable is applied in household ground heating, conductor 1 is main pyrotoxin, glass fiber layer 4 and glass fabric layer 5 effectively are incubated, aluminium foil layer 6 is screen, tincopper fuse wire braided armor 7 is ground protection, strengthen simultaneously the shielding action of aluminium foil layer 6, ceramic silicone insulation layer 2 and low smoke, zero halogen polyolefin jacket layer 3 reach the fire prevention purpose, and all has good ageing resistance.

Certainly, if the glass fiber belt is wrapped in outside glass fabric layer 5 by glass fiber layer 4, also within protection range.

For a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement, these also should be considered as protection range of the present utility model, and these can not affect effect and practical applicability that the utility model is implemented.

Claims (2)

1. twoly lead two heating floor heating cables, comprise insulated wire cores, low smoke, zero halogen polyolefin jacket layer, it is characterized in that: insulated wire cores comprises two conductors and conductor outer ceramic silicone insulation layer and the glass fiber belt of parcel successively, insulated wire cores is enclosed with aluminium foil layer and tincopper fuse wire braided armor outward successively, and low smoke, zero halogen polyolefin jacket layer is outermost layer.

2. lead two heating floor heating cables for as claimed in claim 1 pair, it is characterized in that: described glass fiber belt comprises glass fiber layer and glass fabric layer.

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