CN209357506U - A kind of high temperature resistant composite power cable - Google Patents
A kind of high temperature resistant composite power cable Download PDFInfo
- Publication number
- CN209357506U CN209357506U CN201920448593.6U CN201920448593U CN209357506U CN 209357506 U CN209357506 U CN 209357506U CN 201920448593 U CN201920448593 U CN 201920448593U CN 209357506 U CN209357506 U CN 209357506U
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- thermal insulation
- high temperature
- insulation tile
- power cable
- temperature resistant
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Abstract
The utility model discloses a kind of high temperature resistant composite power cables, including cable core, the cable core includes conductor, mica tape of the Bao Rao on the outside of conductor, the insulating layer being extruded in outside mica tape, filled layer, sheath, armor, thermal insulation tile, flame-retardant layer, oversheath are set gradually outside the cable core, the thermal insulation tile is wavy, and cavity I is formed between armor, cavity II is formed between flame-retardant layer, coats aluminum foil web inside and outside the thermal insulation tile.The basic material of thermal insulation tile is common sand, is made into very thin fiber, and thermal insulation tile volume 90% is air, since air conduction coefficient is minimum, has good heat-insulated, heat preservation, fire resisting effect, highest is resistant to 1260 DEG C of high temperature.Preferably, coating aluminum foil web inside and outside the thermal insulation tile, heat insulation is further increased, and extends the service life of thermal insulation tile.
Description
Technical field
The utility model relates to field of cable technology, especially a kind of composite power cable resistant to high temperature.
Background technique
Electrical appliance has become the necessity in human lives, and power cable is the most common carrier of power transmission, for a long time
When overload operation, excessively high temperature can accelerate the aging of insulation, so that insulation is breakdown, especially during the broiling summer, electric power
Cable heat absorption causes temperature rise to accelerate, and accelerates power cable breakdown and aging, therefore in summer, the failure of power cable is also just special
More, high-temperature-resistant power cable has become an important R&D direction of power cable industry.
Utility model content
The utility model aims to solve the problem that the above problem, provides a kind of high temperature resistant composite power cable.
The utility model is achieved through the following technical solutions: a kind of high temperature resistant composite power cable, including cable core, institute
Stating cable core includes conductor, mica tape of the Bao Rao on the outside of conductor, the insulating layer being extruded in outside mica tape, is successively set outside the cable core
Set filled layer, sheath, armor, thermal insulation tile, flame-retardant layer, oversheath.The basic material of thermal insulation tile is common sand, is made into
Very thin fiber, thermal insulation tile volume 90% is air, since air conduction coefficient is minimum, has heat-insulated, heat preservation, fire resisting well
Effect, highest are resistant to 1260 DEG C of high temperature.
The thermal insulation tile is wavy, and cavity I is formed between armor, and cavity II is formed between flame-retardant layer.
Preferably, coating aluminum foil web inside and outside the thermal insulation tile, further increase heat insulation, and extend every
The service life of heat watt.
Preferably, the armor uses aluminum alloy strip lock armo.
Preferably, the insulating layer is extruded using halogen-free and low-smoke flame-retardant polyolefin insulating materials, after extruding into
The crosslinking of row electron beam irradiation.
Preferably, the flame-retardant layer is made of ceramic flame retardant silica gel, ceramic silica gel material has high temperature resistant, resistance to
Soda acid, moisture resistance, corrosion-resistant, ageing-resistant performance.
Preferably, the mica tape uses two-sided synthetic refractory mica tape, synthetic mica tape is using synthetic mica paper as base
Material makees two-sided supporting material with glass cloth, and with silica column adhesive bonding, the coefficient of expansion is small, dielectric strength is big, resistivity is high
Uniform with dielectric constant, temperature classification is high, and heatproof is greater than 1000 DEG C, and it is horizontal (950-1000 DEG C) to reach A grades of heatproofs.
The utility model has the following beneficial effects:
1, it uses two-sided synthetic refractory mica tape using synthetic mica paper as substrate, makees two-sided supporting material with glass cloth, use
Silica column adhesive bonding, temperature classification is high, and heatproof is greater than 1000 DEG C, and it is horizontal (950-1000 DEG C) to reach A grades of heatproofs.
2, the basic material of thermal insulation tile is common sand, is made into very thin fiber, and thermal insulation tile volume 90% is air, by
It is minimum in air conduction coefficient, there is good heat-insulated, heat preservation, fire resisting effect, highest is resistant to 1260 DEG C of high temperature,
3, the thermal insulation tile is wavy, and cavity is formed between armor and flame-retardant layer, and air conduction coefficient is minimum, from
And reduce heat transfer efficiency.
4, two sides covers aluminum foil web inside and outside thermal insulation tile, further increases heat insulation, and extend the use of thermal insulation tile
Service life is truly realized high temperature resistant.
5, thermal insulation tile volume 90% is air, so weight is extremely light, reduces the weight of power cable, to mitigate electric power electricity
Cable construction burden.
Detailed description of the invention
Fig. 1: the utility model structure diagram；
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples:
As shown in Figure 1, a kind of high temperature resistant composite power cable, including cable core, the cable core include conductor 1, Bao Rao is being led
The mica tape 2 in the outside of body 1, the insulating layer 3 being extruded in outside mica tape 2, set gradually outside the cable core filled layer 4, sheath 5,
Armor 6, thermal insulation tile 7, flame-retardant layer 8, oversheath 9.The thermal insulation tile 7 is magnesium gelatinous material thermal insulation tile, and basic material is oxygen
Change magnesium and common sand, nontoxic radiationless, heat insulating function is strong, and outer layer is sealed with plastic alloy, and thermal coefficient is down to 0.169W/
M.k, fire-protection rating reach incombustible material B1 grade, and lateral fracture resistence force reaches 3754N/m, and longitudinal fracture resistence force reaches 399N, heat-insulated
Watt volume 90% is air, since air conduction coefficient is minimum, has well that heat-insulated, heat preservation, fire resisting effect, highest are resistant to
1260 DEG C of high temperature.
The thermal insulation tile 7 is wavy, is formed between cavity I7-1, with flame-retardant layer 8 between armor 6 and forms cavity
II7-2, since air pyroconductivity is minimum, when ambient temperature is excessively high, cavity can further trap heat to power cable
Transmission speed.Aluminum foil web is coated inside and outside the thermal insulation tile 7, further increases heat insulation, and extends thermal insulation tile 7
Service life.
The mica tape 2 uses two-sided synthetic refractory mica tape, and synthetic mica tape uses glass using synthetic mica paper as substrate
Cloth makees two-sided supporting material, and with silica column adhesive bonding, the coefficient of expansion is small, dielectric strength is big, resistivity is high and dielectric is normal
Uniformly, temperature classification is high for number, and heatproof is greater than 1000 DEG C, and it is horizontal (950-1000 DEG C) to reach A grades of heatproofs.
The insulating layer 3 is extruded using halogen-free and low-smoke flame-retardant polyolefin insulating materials, is carrying out electron beam after extruding
Cross-linking radiation.
The sheath 5 is tightened using high fire-retardance glass cloth band is wrapped, is had fire-retardant and is protected insulating layer 3 not by armour
It fills layer 6 and damages function.
The filled layer 4 is using the low cigarette of non-hygroscopic, Halogen, fire proofing, such as polypropylene rope, glass cord, stone
Cotton cord plays certain fire-retardant heat insulation effect while guaranteeing power cable roundness.
The armor 6 uses aluminum alloy strip lock armo, and heat transference efficiency is low.
The flame-retardant layer 8 is made of ceramic flame retardant silica gel, and ceramic silica gel material has high temperature resistant, acid and alkali-resistance, resistance to
Damp, corrosion-resistant, ageing-resistant performance.
The jacket layer 9 is made of polyurethane elastomer material, can wear-resisting, oil resistant, it is ageing-resistant, corrosion-resistant, prevent it is quiet
Electricity, reusable, energy conservation and environmental protection.
The utility model is illustrated by way of example above, but the utility model is not limited to above-mentioned specific implementation
Example, all ranges that the requires of the utility model protection is belonged to based on any changes or modifications that the utility model is done.
Claims (7)
1. a kind of high temperature resistant composite power cable, including cable core, it is characterised in that: the cable core includes conductor (1), and Bao Rao is being led
Mica tape (2) on the outside of body (1) is extruded in the insulating layer (3) of mica tape (2) outside, and filled layer is set gradually outside the cable core
(4), sheath (5), armor (6), thermal insulation tile (7), flame-retardant layer (8), oversheath (9).
2. a kind of high temperature resistant composite power cable according to claim 1, it is characterised in that: the thermal insulation tile (7) is in wave
It is formed between shape wave, with armor (6) between cavity I (7-1), with flame-retardant layer (8) and forms cavity II (7-2).
3. a kind of high temperature resistant composite power cable according to claim 1 or 2, it is characterised in that: in the thermal insulation tile (7)
Outer two sides coat aluminum foil web.
4. a kind of high temperature resistant composite power cable according to claim 1, it is characterised in that: the armor (6) uses
Aluminum alloy strip lock armo.
5. a kind of high temperature resistant composite power cable according to claim 1, it is characterised in that: the insulating layer uses 150
Spend LSOH anti-flaming irradiation crosslinked polyolefin insulating layer.
6. a kind of high temperature resistant composite power cable according to claim 1, it is characterised in that: the flame-retardant layer (8) uses
Ceramic flame retardant silica gel is made.
7. a kind of high temperature resistant composite power cable according to claim 1, it is characterised in that: the mica tape (2) uses
Two-sided synthetic refractory mica tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920448593.6U CN209357506U (en) | 2019-04-04 | 2019-04-04 | A kind of high temperature resistant composite power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920448593.6U CN209357506U (en) | 2019-04-04 | 2019-04-04 | A kind of high temperature resistant composite power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209357506U true CN209357506U (en) | 2019-09-06 |
Family
ID=67804582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920448593.6U Active CN209357506U (en) | 2019-04-04 | 2019-04-04 | A kind of high temperature resistant composite power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209357506U (en) |
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2019
- 2019-04-04 CN CN201920448593.6U patent/CN209357506U/en active Active
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