CN201608000U - Computer and instrument cable - Google Patents
Computer and instrument cable Download PDFInfo
- Publication number
- CN201608000U CN201608000U CN2010201353474U CN201020135347U CN201608000U CN 201608000 U CN201608000 U CN 201608000U CN 2010201353474 U CN2010201353474 U CN 2010201353474U CN 201020135347 U CN201020135347 U CN 201020135347U CN 201608000 U CN201608000 U CN 201608000U
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- cable
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- instrument cable
- computer
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Abstract
The utility model discloses a computer and instrument cable. A cable set unit is formed by twisting insulating cable cores according to two cable sets or three cable sets; a belting layer and a sub-shielding layer are arranged outside the cable set unit; the cable set unit is twisted into cable cores and a filling layer is arranged between the cable cores; a second belting layer, a general shielding layer, a general belting layer and an outer protective sleeve layer are arranged outside the cable cores and the filling layer in sequence; and the insulating cable cores are formed by conductors, fireproof layers and FEP insulating layers. The cable of the utility model integrates the properties of resisting high temperature and low temperature, fire preventing, high inflaming retarding, the properties of resisting chemical corrosion like strong acid, soda and oil water as well as harmful gases, etc, the properties of resisting low capacitance and low inductance and the function of excellent and stable signal transmission.
Description
Technical field:
The utility model relates to a kind of computer and instrument cable.
Background technology:
Computer of Xiao Shouing and instrument cable mainly contain chemical corrosivity computers such as fire-retardant computer and instrument cable, fire-resistant computer and instrument cable, high temperature resistant computer and instrument cable, low temperature resistant computer and instrument cable, acid and alkali-resistance, profit and instrument cable etc. in the market, these computers and instrument cable major defect are the security performance dullnesses, and can not adapt to has two and above security performance needs; Yet a lot of occasions in industrial and mining enterprises such as electric power, oil, chemical industry, iron and steel all are to have high temperature, strong acid-base, profit and combustibility simultaneously or there are adverse circumstances in corrosive gas.If long-term general computer and instrument cable or single computer and the instrument cable of performance that uses of Distributed Control System under such rugged environment or computer control system, its security performance will be difficult to guarantee.
Summary of the invention:
Use the problem that exists in order to overcome existing commonly used single performance computer and instrument cable under some have the adverse circumstances of high temperature, soda acid, greasy dirt, imflammable gas or corrosive gas simultaneously, the purpose of this utility model is to provide a kind of novel calculating and instrument cable that chemical corrosion resistance such as high temperature resistant, low temperature, fire prevention, high flame retardant, anti-strong acid, alkali, profit, pernicious gas and low electric capacity, low inductance have good stable signal transfer functions that integrate.
The utility model technical solution problem adopts following technical scheme:
A kind of computer and instrument cable, form line group unit by insulated wire cores by two line groups or three-way group of pair twist, online group of unit is outside equipped with belting layer and sub-shield, line group unit is twisted into cable core, and packed layer is set between cable core, be disposed with second belting layer, total screen, overall budget belt and external sheath layer outside cable core and packed layer, described insulated wire cores is made of conductor, flame retardant coating and perfluoroethylene-propylene insulating barrier.
Described conductor adopts tin-coated copper core flexible conductor.
Described flame retardant coating is that heatproof reaches 1000 ℃ synthetic mica tape.
Described packed layer is a heat-resistant fireproof glass rope.
Described belting layer and overall budget belt are the heat-resistant fireproof glass fibre belt.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
The conductor of cable adopts tin-coated copper core flexible conductor, and its purpose is to increase the fire resistant anticorrosive performance of cable conductor, after the while is zinc-plated the conductor oxidation situation that prevents that effectively cable from occurring when hot environment is used can be arranged.Be provided with flame retardant coating outside the conductor of cable, this flame retardant coating material adopts the synthetic mica tape of heatproof up to 1000 ℃, can guarantee the cable fire resistance test of cable by the GB/T19216 regulation fully.Insulating barrier and external sheath layer all adopt high-quality perfluoroethylene-propylene copolymer, perfluoroethylene-propylene has good electric property at first on the one hand, its specific insulation height, dielectric constant and dielectric loss is less and little with temperature and frequency change, and these good performances just guarantee that cable has low inductance of low electric capacity and stable signal transfer functions; Next is that perfluoroethylene-propylene also has good high and low temperature resistance, it can be in-85～+ 200 ℃ temperature range uses continuously, though-200 and+260 ℃ limiting case under, its performance does not worsen yet, can use the short time, this has just guaranteed the high and low temperature resistance of cable; Perfluoroethylene-propylene also has extremely stable chemical properties once more, reflect with any chemicals hardly, have good strong acid-base resistance, the chemical corrosion resistance of profit, this just guarantees that cable is being both the fail safe of using under the occasion with these dangerous matter sources existence; Perfluoroethylene third also has high flame resistance in addition, and its fire-retardant oxygen index is higher than general anti-flammability organic material (oxygen index is more than 30%) far away up to more than 90%, and this has just guaranteed the fire resistance of cable.Insulation of the utility model product and sheath material all adopt the perfluoroethylene-propylene material, and its cable-flame retardant performance can reach the bunchy category-A burning test of GB/T18380.35 regulation, has guaranteed the fail safe that cable uses in the presence of imflammable gas.The material of the sub-shield of cable and total screen all adopts tinned copper wire braid shielded form, has guaranteed that cable is at high temperature with the fail safe of using in the chemical corrosivity environment is arranged.The auxiliary material packed layer and the belting layer of cable all adopt the flame-resistant high-temperature-resistant glass fiber material, have guaranteed the resistance to elevated temperatures and the fire resistance of cable.This product is a kind of novel calculating and instrument cable that chemical corrosion resistance such as high temperature resistant, low temperature, fire prevention, high flame retardant, anti-strong acid, alkali, profit, pernicious gas and the low inductance of low electric capacity have good stable signal transfer functions that integrate, and vast market prospect is arranged.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Number in the figure: 1 conductor, 2 flame retardant coatings, 3 insulating barriers, 4 belting layers, 5 sub-shields, 6 packed layers, 7 second belting layers, 8 total screens, 9 total screens, 10 external sheath layers.
Below pass through embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.
Embodiment:
Embodiment: shown in Figure 1, described a kind of computer of present embodiment and instrument cable, conductor 1 adopts the zinc-plated soft copper tow of the multiply compositing conducting core of the 5th class formation, the following step of conductor production process: wire drawing-annealing-zinc-plated-synnema, the form that conductor adopts bundle to close, wherein 1mm
2With monofilament maximum gauge in the lower conductor is 0.21mm, 1.5-2.5mm
2The monofilament maximum gauge is 0.26mm in the conductor.Flame retardant coating 2 adopts double-deck synthetic mica tape overlapping wrapped, and the overlapping rate of putting up is not less than 50%.Insulating barrier 3 adopts the perfluoroethylene-propylene Insulation Material, its production process is produced on SJ45 high temperature plastic extruding machine and is finished, adopt tubular molding tool to extrude, its extrusion temperature is according to the difference of warm area and different, body temperature is controlled at 300 ± 10 ℃, and head temperature is controlled at 280 ± 5 ℃, and die temperature is controlled at 290 ± 5 ℃, can carry out suitable adjustment according to extrusion equipment and material different, differ 5～10 ℃ in winter and summer.Belting layer 4 adopts the heat-resistant fireproof glass fibre belt, and production form adopts overlapping wrapped, and the rate of putting up is not less than 15%, and the twisted pair wire group is tightened in main effect.The production process of tinned copper wire braiding sub-shield 5 is finished on 16 ingot braiding machines, and braiding angle generally is controlled between 30～60 degree, by regulating braiding angle or lay of braiding count is controlled at more than 80%.Packed layer 6 adopts heat-resistant fireproof glass rope, and main effect guarantees the fire-retardant and resistance to elevated temperatures and the rounding property of cable.Second belting layer 7 adopts the heat-resistant fireproof glass fibre belt, and production form adopts overlapping wrapped, and the rate of putting up is not less than 15%, and cable core is tightened in main effect.Tinned copper wire weaves the production process of total screen 8 and finishes on braiding machine, wherein conductor assembly outer diameter is generally finished on 16 ingot braiding machines below the 6.5mm before the braiding, diameter is generally finished on 24 ingot braiding machines more than 6.5～22.0mm, and diameter is generally finished on 32 or 36 ingot braiding machines more than the 22.0mm.Braiding angle generally is controlled between 30～60 degree, by regulating braiding angle or lay of braiding count is controlled at more than 80%.Overall budget belt 9 adopts the heat-resistant fireproof glass fibre belt, and production form adopts overlapping wrapped, and the rate of putting up is not less than 15%, and total shielding and outer jacket are isolated in main effect.External sheath layer 10 adopts the perfluoroethylene-propylene material, also adopt tubular molding tool to extrude, extrusion temperature is according to the difference of warm area and different, body temperature is controlled at 290 ± 10 ℃, head temperature is controlled at 290 ± 10 ℃, die temperature is controlled at 280 ± 5 ℃, can carry out suitable adjustment according to extrusion equipment and material different, differs 5～10 ℃ in winter and summer.Production equipment can adopt different sheath extruders to produce according to the size of the outside diameter of cable: the use SJ45 extruder of external diameter below 15mm, the use SJ65 extruder of external diameter more than 15.0mm～25.0mm.
Claims (5)
1. computer and instrument cable, form line group unit by insulated wire cores by two line groups or three-way group of pair twist, online group of unit is outside equipped with belting layer (4) and sub-shield (5), line group unit is twisted into cable core, and packed layer (6) is set between cable core, outside cable core and packed layer (6), be disposed with second belting layer (7), total screen (8), overall budget belt (9) and external sheath layer (10), it is characterized in that described insulated wire cores is made of conductor (1), flame retardant coating (2) and perfluoroethylene-propylene insulating barrier (3).
2. a kind of computer according to claim 1 and instrument cable is characterized in that, described conductor (1) adopts tin-coated copper core flexible conductor.
3. a kind of computer according to claim 1 and instrument cable is characterized in that, described flame retardant coating (2) reaches 1000 ℃ synthetic mica tape for heatproof.
4. a kind of computer according to claim 1 and instrument cable is characterized in that, described packed layer (6) is a heat-resistant fireproof glass rope.
5. a kind of computer according to claim 1 and instrument cable is characterized in that, described belting layer (4) and overall budget belt (9) are the heat-resistant fireproof glass fibre belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201353474U CN201608000U (en) | 2010-03-17 | 2010-03-17 | Computer and instrument cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201353474U CN201608000U (en) | 2010-03-17 | 2010-03-17 | Computer and instrument cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201608000U true CN201608000U (en) | 2010-10-13 |
Family
ID=42952704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201353474U Expired - Lifetime CN201608000U (en) | 2010-03-17 | 2010-03-17 | Computer and instrument cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201608000U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646472A (en) * | 2012-05-08 | 2012-08-22 | 南京全信传输科技股份有限公司 | Special transmission cable for field and preparation process thereof |
| CN114783674A (en) * | 2022-05-04 | 2022-07-22 | 安徽华通电缆集团有限公司 | Special high-corrosion-resistance flame-retardant intrinsic safety computer cable for petrochemical plant and forming equipment thereof |
-
2010
- 2010-03-17 CN CN2010201353474U patent/CN201608000U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646472A (en) * | 2012-05-08 | 2012-08-22 | 南京全信传输科技股份有限公司 | Special transmission cable for field and preparation process thereof |
| CN114783674A (en) * | 2022-05-04 | 2022-07-22 | 安徽华通电缆集团有限公司 | Special high-corrosion-resistance flame-retardant intrinsic safety computer cable for petrochemical plant and forming equipment thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101013 |