CN205158978U - Non - armor is from temperature measurement control cable - Google Patents
Non - armor is from temperature measurement control cable Download PDFInfo
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- CN205158978U CN205158978U CN201520804399.9U CN201520804399U CN205158978U CN 205158978 U CN205158978 U CN 205158978U CN 201520804399 U CN201520804399 U CN 201520804399U CN 205158978 U CN205158978 U CN 205158978U
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Abstract
The utility model provides a non - armor is from temperature measurement control cable, is including setting up a plurality of sinle silks in the oversheath, and each sinle silk is formed by copper conductor and the insulating cover of the sinle silk of parcel copper conductor, is provided with thermometric component in the oversheath, and thermometric component includes temperature measurement line, is polyester lining, shielding layer and plastics band outside temperature measurement line in proper order, temperature measurement line has the copper core pair twist of the insulating cover of copper core to form by two root zones, and wherein, thermometric component sets up outside the insulating cover of sinle silk, moves towards unanimous with the length of the insulating cover of sinle silk, set up the inner liner in the oversheath, sinle silk and thermometric component all are arranged in the inner liner, this practical multiplicable cable from the temperature measurement ability, the prevention cable overheated and take place line fault.
Description
Technical field
The utility model belongs to power cable technical field, and particularly the non-armouring of one is tested oneself temperature control cable.
Background technology
Along with the development of national economy, the raising of production modernization level, large industrial production electricity consumption adopts the situation of centralized control and supervision to be popularized, the stability that control & monitor cable line is run and security requirement more and more higher.The power-off that control circuit fault causes, will make whole production system paralyse, and affect manufacturing schedule, even can cause the damage of some equipment.Therefore, add in control cables from temperature measurement component, in order to monitoring cable circuit operating temperature, the overload of prevention circuit, temperature is too high, causes insulation damages, and cable line breaks down and power-off.Control cables circuit many employings poling, be hidden in and lay within the walls or in ornament, fault inspecting and maintenance effort consuming time, and need special equipment to detect, cause larger difficulty to user.In addition, the reparation point compactedness at fault place and sealing, all not as original production, meet steam or water droplet easily forms potential faults point.Use and then can reach preventive effect in advance from cable for measuring temperature, prevent from having a power failure suddenly or reducing interruption duration.
Existing general control cable, often has overlond running cable temperature too high, makes insulation soften into molten condition; conductor wire core is close to each other under internal stress effect; when insulation be extruded be thinned to a certain degree bear incessantly electric field strength time, insulation punctures, and cable line trip protection has a power failure.From cable for measuring temperature owing to having temperature measurement component in cable, additional simple equipment (as direct-current bridge and temperature coefficient of resistance table) just can the change of monitoring cable operating temperature.Line load is increased because production capacity expands increase equipment, or near circuit, have thermal source to produce, or circuit has part radiating condition variation etc. summer, cause cable temperature to increase to over limit value, the temperature of temperature measurement component raises with cable, resistance becomes large, monitoring personnel by measuring resistance reduced temperature, find cable line hidden danger, just or take measures, lighten the load as closed secondary power consumption equipment, or search thermal source, heat radiation unfavorable condition got rid of.If adopt microcomputer to control directly to convert, displays temperature acousto-optic report to the police, ideal, or microcomputer controls directly, and minimizing load is then even more ideal.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of non-armouring to test oneself temperature control cable, its rated voltage 450/750V, can increase cable from thermometric ability, prevention cable is overheated and line fault occurs.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of non-armouring is tested oneself temperature control cable, comprise the some cores be arranged in oversheath 5, each core forms by the core insulating case 2 of copper conductor 1 and parcel copper conductor 1, temperature measurement component 3 is provided with in oversheath 5, temperature measurement component 3 comprises thermometric line, polyester backing layer 33 is followed successively by outside thermometric line, screen 34 and plastics band 35, described thermometric line by two with copper core insulation overlap 32 copper core 31 pair twist form, wherein, temperature measurement component 3 is arranged on outside core insulating case 2, move towards consistent with the length of core insulating case 2, in described oversheath 5, inner covering 5 is set, core and temperature measurement component 3 are all arranged in inner covering 5.
Described temperature measurement component 3 is positioned at the center of each core, is surrounded by each core.
Described core insulating case 2 is polyvinyl chloride or crosslinked polyetylene insulated cover, and oversheath 5 is polyvinyl chloride or polyethylene or low smoke, zero halogen polyolefin jacket.
The copper alloy wire that the utility model can adopt electrical resistance variations in temperature linear replaces copper core 31.
The utility model additionally provides a kind of described non-armouring and to test oneself the manufacture method of temperature control cable, comprises the following steps:
Step one, employing electrician use copper cash base, are drawn into soft circular copper wire, as copper core 31 by wire drawing unit in copper large wire drawing unit and band continuous annealing copper;
Step 2, extrude layer of polyethylene or crosslinked polyethylene at soft circular copper wire, as copper core insulation cover 32;
Step 3, the copper core 31 of two band copper core insulations covers 32 is carried out pair twist, form thermometric line;
Step 4, the wrapped or vertical bag shielding with copper strips on thermometric line, or with proof copper-wire braided shielding, form screen 34, screen 34 times wrapping inner coverings 33, screen 34 are wrapped up plastics band 35, form temperature measurement component 3;
Step 5, when stranding, by temperature measurement component 3 and power cable core together stranding, temperature measurement component 3 is arranged in the middle of cable core or the gap of each core, measures the break-make of temperature measurement component 3 after stranding.
In described step one, the diameter 0.5-1.0mm of soft circular copper wire, in wire drawing unit, adopt through water tank slidingtype multidie machine, wire-drawing die adopts glomerocryst wire drawing die, copper cash is through 400 DEG C ~ 550 DEG C annealing, and annealing adopts Lian Lalian annealing, the annealing of duct type annealing machine or pot annealing, forces cooling or naturally cool to ambient temperature after annealing.
In described step 2, the thickness of copper core insulation cover 32 is 0.4 or 0.5mm.
In described step 2, obtain the copper core insulation cover 32 of different colours when extruding, to partner twisted pair wire according to different colours pair twist in step 3, twisted pair wire lay ratio is not more than 20.
Of the present utility model is in the space of general control cable, add a pair bronze medal core insulation wire, i.e. thermometric line, the resistance variations of thermometric line described in Real-Time Monitoring from cable for measuring temperature, then converts variations in temperature to by single-chip microcomputer, can the operating temperature of monitoring power cable.Single-chip microcomputer can set, and when temperature exceedes restriction, carries out sound, light is reported to the police, and reminds operating personnel reduce the load of this cable or stop power supply.
Compared with prior art, the beneficial effects of the utility model are:
(1) cable performance is stablized.The electric conductivity of cable, electrical insulation properties, mechanical performance meet national existing control cables standard-required completely.
(2) thermometric is simple and practical.Adding of temperature measurement component, for cable thermometric to provide with control together with ensure.By cable thermometric and control, prevention cable overload causes line fault, ensures effective power supply and the use of circuit.
(3) technics comparing maturation is easy to processing.Cable body and temperature measurement component processing technology all ripe, it is convenient to manufacture, and utilizes existing equipment to complete, can ensure production cycle and delivery date.
(4) be convenient to install and use.The laying installation of cable has become ripe, and the installation of temperature measurement component and use are also fairly simple is easy to operation.
To aspire for stability to cable line from thermometric cable fulfils, the needs of safe operation, be applicable in the supply line of visual plant device, keypoint part, safe power supply guarantee can be provided for user, meet cable line safety, stable, lasting, effective developing direction, have a extensive future.Temperature measurement component can be positioned in each specifications control cable conductor of 2 core ~ 61 cores.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model temperature measurement component.
Fig. 2 is the structural representation of the utility model unarmored cable.
Embodiment
Execution mode of the present utility model is described in detail below in conjunction with drawings and Examples.
A kind of non-armouring is tested oneself temperature control cable, comprise the some cores be arranged in oversheath 5, each core forms by the core insulating case 2 of copper conductor 1 and parcel copper conductor 1, temperature measurement component 3 is provided with in oversheath 5, as shown in Figure 1, temperature measurement component 3 comprises thermometric line, polyester backing layer 33, screen 34 and plastics band 35 is followed successively by outside thermometric line, described thermometric line by two with copper core insulation overlap 32 copper core 31 pair twist form, wherein, temperature measurement component 3 is arranged on outside core insulating case 2, moves towards consistent with the length of core insulating case 2.
Wherein, copper conductor 1 is annealed by drawing circular copper wire and is formed, elongation at break>=20%, Ω mm in resistivity≤0.017241 when 20 DEG C
2/ m.Core insulating case 2 is polyvinyl chloride or crosslinked polyetylene insulated cover, its tensile strength >=10MPa, elongation at break >=300%.
As shown in Figure 2, each core and temperature measurement component 3 are all arranged in inner covering 5, form non-armouring thus from cable for measuring temperature.
Manufacture method from cable for measuring temperature of the present utility model, comprises the following steps:
One, adopt and meet the electrician of GB/T3952-2008 standard with copper cash base T1, TU1, the intermediate materials of diameter 2 ~ 3mm is drawn on the large wire drawing machine of copper, the soft circular copper wire of diameter 0.5 ~ 1.0mm temperature measurement component is drawn into again to wire drawing machine in band continuous annealing copper, the lengthening coefficient of the large wire drawing machine wire drawing of copper controls about 1.3, and the intermediate materials pulled out greatly is hard circular copper wire, in copper, the wire drawing lengthening coefficient of wire drawing machine controls below 1.25, and anneal continuously after wire drawing, become the operable soft copper conductor of temperature measurement component 3, i.e. copper core 31.
Two, on copper core 31, extrude layer of polyethylene insulation or crosslinked polyetylene insulated as copper core insulation cover 32.That material of concrete use is depending on the conductor allowable temperature of power cable, and polyvinyl chloride insulation control cables selects polyethylene insulation material, and cross-linking polytene insulation control cable selects crosslinked polyethylene insulation material.
Three, copper core insulation cover 32 is divided into two kinds of colors, and two kinds of colors are carried out pair twist, and stranded lay ratio is not more than 20 times, obtains thermometric line.
Four, a wrapped polyester backing layer 33 on thermometric line; then the soft copper band of wrapped or vertical bag thickness 0.05 ~ 0.10mm is as shielding; also can adopt thin copper wire braid shielded, form screen 34, on screen 34, wrapped one deck plastics band 35 carries out tightening and protecting again.
Five, when stranding, by temperature measurement component 3 and control cables core together stranding, temperature measurement component 3 is arranged in the middle of cable core or the gap of each core, measures the break-make of temperature measurement component 3 after stranding.
With 18 × 2.5+ (2 × 0.5) P specification for example, select the T1R type Φ 8.0mm electrician meeting GB/T3952-2008 standard to use copper cash base, when copper bar percentage elongation is 42%, 20 DEG C, resistivity is 0.01701 Ω mm
2/ m.Be below manufacture process:
(1) drawing nominal cross is 0.5mm
2soft circular copper wire, the large wire drawing machine line speed of copper controls at 10m/min, and adopt 8 road moulds to draw altogether, all wire drawing dies adopt glomerocryst mould, and outlet is TY-3.00, and wire drawing lengthening coefficient controls between per pass 1.28 ~ 1.32; Middle wire drawing machine line speed controls at 15m/min, and wire drawing lengthening coefficient controls 1.20 ~ 1.25, with 12 road moulds, wire drawing lengthening coefficient controls 1.22 ~ 1.26, and outlet cross section is 0.5mm2, and then uses big current continuous annealing, become annealed copper wire, as copper core 31.
(2) copper core 31 extrudes crosslinked polyetylene insulated as copper core insulation cover 32, its thickness 0.4mm, color is divided into yellowish green two kinds.
(3) two yellow and green bar insulation cores are carried out pair twist, lay ratio is 19 times, twisting to being dextrad, obtaining thermometric line.
(4) the thick polyester belt of the thick polyester belt of each wrapped one deck 0.04mm+0.05mm thick soft copper band+0.04mm on thermometric line, forms temperature measurement component 3.
(5) during stranding, temperature measurement component 3 is added in the center of cable, occupy 1 insulated wire cores position, other insulated wire cores is centered around stranding outside it.
Of the present invention have temperature measurement component from cable for measuring temperature, and assembly is the change of Real-Time Monitoring cable temperature in control cables runs, and when temperature increases to over restriction, reminds operating personnel to reduce electric power or brief power outage, ensure that control cables does not break down.
Of the present invention from cable for measuring temperature, temperature measurement component makes conductor by high-quality electrician copper cash, and its electrical resistance temperature linearity changes, and monitor temperature is more accurate.
Of the present invention have polyethylene insulation on cable for measuring temperature temperature measuring wire, and insulation resistance high-performance is excellent, and leakage current, dielectric loss very I are ignored completely.
Of the present invention from cable for measuring temperature, temperature measurement component self has shielding protection, prevents induced electricity, alternating current on the impact of temp measuring system, ensures the accuracy of thermometric.
Of the present invention from cable for measuring temperature, temperature measurement component size is less, takies 1 core position, substantially do not affect the outside dimension of control cables in control cable core.
Of the present invention from cable for measuring temperature, temperature-measurement principle is fairly simple, easy to operate and control with configuration, and practicality is stronger.
Be applicable to, line maintenance very inconvenient or long period power-off comparatively strict to cable line requirement from cable for measuring temperature endanger in huge circuit electricity consumption.Prevent cable fault, minimizing electric loss, avoid conflicts generation, meets social orientation, have a extensive future.
Claims (2)
1. a non-armouring is tested oneself temperature control cable, comprise the some cores be arranged in oversheath (5), each core forms by the core insulating case (2) of copper conductor (1) and parcel copper conductor (1), temperature measurement component (3) is provided with in oversheath (5), temperature measurement component (3) comprises thermometric line, polyester backing layer (33) is followed successively by outside thermometric line, screen (34) and plastics band (35), described thermometric line is formed by two copper core (31) pair twists with copper core insulation cover (32), wherein, temperature measurement component (3) is arranged on core insulating case (2) outward, move towards consistent with the length of core insulating case (2), it is characterized in that, inner covering (5) is set in described oversheath (5), core and temperature measurement component (3) are all arranged in inner covering (5).
2. non-armouring is tested oneself temperature control cable according to claim 1, and it is characterized in that, described temperature measurement component (3) is positioned at the center of each core, is surrounded by each core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804399.9U CN205158978U (en) | 2015-10-16 | 2015-10-16 | Non - armor is from temperature measurement control cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804399.9U CN205158978U (en) | 2015-10-16 | 2015-10-16 | Non - armor is from temperature measurement control cable |
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| CN205158978U true CN205158978U (en) | 2016-04-13 |
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| CN201520804399.9U Active CN205158978U (en) | 2015-10-16 | 2015-10-16 | Non - armor is from temperature measurement control cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110232999A (en) * | 2018-03-06 | 2019-09-13 | 苏州益而益电线电缆有限公司 | Power supply line with overheating protection function |
-
2015
- 2015-10-16 CN CN201520804399.9U patent/CN205158978U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110232999A (en) * | 2018-03-06 | 2019-09-13 | 苏州益而益电线电缆有限公司 | Power supply line with overheating protection function |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230815 Address after: Room 11410, Unit 1, Building 12, Ronghao Building, No.1 Erfuzhuang, Weiyang Road, Weiyang District, Xi'an City, Shaanxi Province, 710000 Patentee after: Shaanxi Jitong Cable Co.,Ltd. Address before: 710115 No. 88, North Section of Fengling Road, Mawang Street, Chang'an District, Xi'an City, Shaanxi Province Patentee before: SHAANXI WANTONG WIRE & CABLE Co.,Ltd. |