CN208970199U - It is a kind of bilayer crosslinked with silicane copper strips always shield steel wire woven armored converter cable - Google Patents

It is a kind of bilayer crosslinked with silicane copper strips always shield steel wire woven armored converter cable Download PDF

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Publication number
CN208970199U
CN208970199U CN201821862668.7U CN201821862668U CN208970199U CN 208970199 U CN208970199 U CN 208970199U CN 201821862668 U CN201821862668 U CN 201821862668U CN 208970199 U CN208970199 U CN 208970199U
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halogen
flame
low
core
crosslinked
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Inventor
于海鹏
于廷忠
李云海
宫家亮
刘远峰
王丽艳
于婧
刘晓林
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Dalian Pop Cable Group Co Ltd
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Dalian Pop Cable Group Co Ltd
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Abstract

The utility model provides a kind of double-deck crosslinked with silicane copper strips and always shields steel wire woven armored converter cable, including the first core and the second core, first core is phase conductor, second core is gnd conductor, three first cores and three second core twisted synthesizing cables, it is filled using flame resistant filler rope in cable core gap, cable core from-inner-to-outer is disposed with the first low-smoke non-halogen flame-retardant band, first low smoke halogen-free flame-retardant polyolefin inner sheath, copper belt, second low-smoke non-halogen flame-retardant band, the the second low smoke halogen-free flame-retardant polyolefin separation layer extruded, steel wire woven armored layer and third low smoke halogen-free flame-retardant polyolefin external sheath layer.The utility model excellent in flame retardance realizes the environmentally protective low smoke, zero halogen and high life characteristic of converter cable, promotes the environmental protection characteristic of power cable for frequency converter and service life quality at this stage, has catered to the market demand.

Description

It is a kind of bilayer crosslinked with silicane copper strips always shield steel wire woven armored converter cable
Technical field
The utility model relates to cable technologies more particularly to a kind of double-deck crosslinked with silicane copper strips always to shield steel wire woven armored Converter cable.
Background technique
With electric power scientific and technological progress, the energy-saving effect of converter plant is fairly obvious, and frequency conversion tune is used in heavy-duty motor Speed motor, entire generating set can economize on electricity 30%.And using after frequency control, the soft start of motor is realized, motor work is made Make steadily, motor bearings abrasion reduces, and extends motor service life and maintenance period.Therefore, variable-frequency control technique petroleum, The industrial aspects such as metallurgy, power generation, railway, mine are widely used in a variety of applications.
Meanwhile it is medium numerous in executive information systems, large-scale public place of entertainment, large-scale industrial and mineral, enterprise and underground engineering Place, often cable cluster laying, once fire occurs, fire will prolong combustion at cable and spread to other departments and floor. It is counted according to fire department, in Urban Fires, wherein 2/3 or more is since electrical equipment failure or cable traffic overload cause cable Caused by burning sprawling, most important hazard factor is exactly a large amount of toxic gases and smog in these fire.As traditional Flame retardant cable, low smoke and low halogen flame retardant cable, the mixture being all widely composed using halogen containing polymers and halogen containing flame-retardant. Although these cables have good flame retardant property, fire once occurs, a large amount of smog can be generated after cable fire and has Corrosive gas of poison, this not only interferes fire fighting work and evacuating personnel, and can corrode instrument and equipment.Particularly with numerous The closing place of gathering of people, such as subway, hotel, exhibit halls and naval vessel, and the field equipped with expensive electronic equipment It closes, this problem just seems especially important.
The existing legal provisions in China are limited to 70 at the time limit of the construction land right to use, general residential construction ownership year Year, it is limited to 40 years in commercial building construction ownership year, but common civil electric wire cable only has 25 year service life, if using the time It has been more than the defined time limit, aging phenomenon is serious in the process of running for wire cable insulating layer, it would be possible to electric leakage, fire etc. occur Safety accident.
So once laying the cable that can be used all the life, become the inevitable special title of structure used wire, while many buildings are set at present In meter specification, it is distinctly claimed using environmentally protective high-performance wire and cable, improves with the development of science and technology, environmentally protective height Performance wire and cable certainly will become the development trend of the following line.
Utility model content
The purpose of this utility model is that for above-mentioned high-quality requirement and wire and cable in actual use Environmental protection characteristic development trend proposes a kind of double-deck crosslinked with silicane copper strips and always shields steel wire woven armored converter cable, such Cable is environmentally protective, and burning does not generate harmful halogen gas, weighted value >=4.3 Halogen performance pH of cable, conductivity weighted value ≤ 10 μ S/mm, minimum light transmittance >=60% of low cigarette characteristic, cable can be burnt the experiment of A class by bunchy, and fire-resistance property is can be In the case of 750 DEG C of flame calcinations, continued power 90min or more, electric property is superior, simultaneously ceramic fire resisting composite band with two layers Crosslinked insulating material wants the Trinity insulation system combined, and common PVC insulating materials can be allowed to 70 DEG C that conductor is run 90 DEG C, 105 DEG C, 125 DEG C are promoted to, so that cable insulation ageing-resistant performance is obviously improved, promote electric wire current-carrying capability itself, from And extended in the electric wire service life.
In order to achieve the above purposes, the technical solution adopted by the utility model is:, and a kind of double-deck crosslinked with silicane copper strips always shields Steel wire woven armored converter cable, including the first core and the second core, first core is phase conductor, from interior It is followed successively by anaerobic copper conductor, the ceramic fire resisting composite band of longitudinal wrap, the organosilane crosslinked polyethylene insulation and crosslinked with silicane that extrude outside Halogen-free and low-smoke flame-retardant polyolefin insulation;Second core is gnd conductor, and from-inner-to-outer is followed successively by anaerobic copper conductor, longitudinal wrap Ceramic fire resisting composite band, the organosilane crosslinked polyethylene insulation extruded and silane crosslinked halogen-free low-smoke flame-proof polyolefin insulation; The ceramic fire resisting composite band uses longitudinal wrap process form, conductive surface is coated on, as the flame retardant coating of wire body, instead of resistance to The technique of the wrapped mica tape of thermoelectricity cable, improves production efficiency, overcomes because mica powder is by flame calcination is easy to fall off and conventional ring Place the shortcomings that moisture-sensitive in border;The organosilane crosslinked polyethylene insulation and the low cigarette type fire retardant polyolefin insulation of silane crosslinked halogen-free, Two layers of cross-linked material is all made of warm water environment crosslinking, and the design of the double-deck cross linked insulation layer improves the electric wire ageing-resistant service life, and gets rid of The complicated technology of electron beam irradiation is abandoned, safety and environmental protection is energy-saving;First core and the second core twisted synthesizing cable, at Cable core gap is filled using flame resistant filler rope, and cable core from-inner-to-outer is disposed with wrapped the first low smoke and zero halogen resistance The wrapped total shielded layer of copper belt of combustion band, the first low smoke halogen-free flame-retardant polyolefin inner sheath extruded, overlapping, wrapped second Low-smoke non-halogen flame-retardant band is low with the second low smoke halogen-free flame-retardant polyolefin separation layer, steel wire woven armored layer and the third that extrude Cigarette halogen-free anti-flaming polyolefin external sheath layer.
Further, the first low-smoke non-halogen flame-retardant band and the third low-smoke and halogen-free flame retardant polyolefin jacket that extrudes it Between be provided with the first low smoke halogen-free flame-retardant polyolefin inner sheath, the copper strips extruded always shield, the second low smoke halogen-free flame-retardant polyolefin The steel wire armor layer of separation layer and braiding.The first wrapped low-smoke non-halogen flame-retardant band is as the first cooling refuge floor, and the Outside one cooling refuge floor, low-smoke and halogen-free flame retardant polyolefin jacket material is extruded, as the first fire-retardant sheath of cable, first is fire-retardant Outside sheath, it is overlapped total shielded layer of the wrapped copper belt as cable, outside total shielded layer, wrapped low-smoke non-halogen flame-retardant band conduct Second cooling refuge floor, outer layer extrude the second fire-retardant interior shield separation layer, second is fire-retardant using low-smoke halogen-free polyolefin material Outside interior shield separation layer, reticular structure is woven into using zinc-coated wire and is coated on insulation surface, as armature of cable layer, armouring Layer is outer, extrudes cracking resistance low-smoke and halogen-free flame retardant polyolefin jacket material, the fire-retardant outer jacket as cable.
Further, three first cores and three second core twisted synthesizing cables, i.e. three phase line insulated wires Core and three ground wire insulated wire core twisted synthesizing cables.Three phase line insulated wire cores and three ground wire insulated wire cores are according to phase angle 120 degree of central symmetry distributions.Cable core gap is filled using flame resistant filler rope.
Further, the anaerobic copper conductor is the conductor that solid or stranded copper wire is twisted, and conductor structure can be pressed User demand, using 1 class, 2 classes, 5 class conductors.
Further, the ceramic fire resisting composite band includes two layers of pyroceram silk strap, two layers of high temperature resistant One layer of Ceramic silicon rubber is pasted among glass wool cloth band, the composite band softness high resilience, longitudinal wrap and around-packing technology all ten It is convenient to divide, and reduces production cost, improves production efficiency, meanwhile, the composite band material is in 300 DEG C~2800 DEG C flame calcinations Under, it will form ceramic-like shell, do not melt, do not drip, effectively completely cut off extraneous flame, the existing wrapped mica tape of can effectively replace Technique as electric wire flame retardant coating.
Further, the first low-smoke non-halogen flame-retardant band is low-smoke non-halogen flame-retardant glass fiber tape, and preferably 4 layers low Cigarette halogen-free flameproof glass fiber band, more have low-smoke non-halogen flame-retardant glass wool cloth band overlapping that choosing is 4 layers of oxygen index (OI) greater than 50 around Packet, each layer of wrapped Duplication is about the 40%~50% of bandwidth, to guarantee that cable integrally can be by bunchy burning A class Performance test has ZA grades of flame retardant property.The second low-smoke non-halogen flame-retardant band is two layers of low-smoke non-halogen flame-retardant glass fibre Band.
Further, the thickness of the organosilane crosslinked polyethylene insulation and the insulation of silane crosslinked halogen-free low-smoke flame-proof polyolefin Than for 3:5-9, preferably 3:7.
A kind of double-deck crosslinked with silicane copper strips described in the utility model always shields the first of steel wire woven armored converter cable The insulating layer of core and the second core includes organosilane crosslinked polyethylene insulation and the exhausted alkene insulation of crosslinked with silicane low-smoke non-halogen flame-retardant. The exhausted alkene insulation of crosslinked with silicane low-smoke non-halogen flame-retardant is used by substrate and halogen-free flame-retardant, antismoke agent etc. of polyolefin Material mixed refining process forms, and extruding machine is added after mixing (95:5) with crosslinking catalyst afterwards uniformly and squeezes out, at (70 DEG C of warm water environment ~80 DEG C) in realize crosslinking, insulation resistance is still able to maintain stabilization in wet condition.
The insulation of the utility model bilayer cross-linking type is to realize crosslinking using warm water environment, so that insulating materials is electrical Mechanical performance, heat resistance, chemical-resistance, stress crack resistance performance are significantly improved.
Outside first cooling refuge floor, it is coated with the first fire-retardant sheath of low smoke halogen-free flame-retardant polyolefin material.First resistance It fires outside sheath, is overlapped wrapping layer using copper belt is provided with, total shielded layer as cable.Outside total shielded layer, using setting Wrapped low-smoke non-halogen flame-retardant glass wool cloth band and the low-smoke and halogen-free flame retardant polyolefin jacket extruded, respectively as second cooling every Fire bed and the second fire-retardant inner restrictive coating.Outside second flame retardant sheath layer, using the netted armored layer of braided steel wire, as the anti-of cable Sheath.Outside the protective layer, it is coated with the fire-retardant outer jacket of low smoke halogen-free flame-retardant polyolefin material.
A kind of double-deck crosslinked with silicane copper strips of the utility model always shields that steel wire woven armored converter cable structure is simple, closes It manages, is compact, having the advantage that compared with prior art
(1) electric property is superior, the design of three-layer insulated structure, so that wire body is provided simultaneously with fire-retardant and fire-resistance property, this A kind of double-deck crosslinked with silicane copper strips of utility model always shields steel wire woven armored converter cable using material property advantage, avoids Because simple cross-linking polyethylene insulated fire resistant is poor, what simple low smoke, zero halogen insulated with material dampness insulation resistance was decreased obviously is lacked It falls into, good compound material advantage, so that cable overall performance is obviously improved.
(2) enhancing of insulation ageing-resistant performance, cable life are promoted, and a kind of double-deck crosslinked with silicane copper strips of the utility model always shields Steel wire woven armored converter cable is covered, effectively increasing insulating materials allows conductor running temperature, ceramic fire resisting composite band The Trinity insulation system combined is wanted with two layers of crosslinked insulating material, conductor can be allowed to run common PVC insulating materials 70 DEG C be promoted to 90 DEG C, 105 DEG C, 125 DEG C, effectively improve the conductor ampacity influenced by insulating materials, improve Electrical safety, effectively reduces the aging speed of insulation, extends cable service life by a relatively large margin.
(3) LSOH anti-flaming fire resisting, environmentally protective, wire body is thrown away sustainable in flame calcination in certain time Power supply, combustion product is nontoxic, without secondary pollution, electric power support is provided for the fire-fighting equipment enabling under fire condition, for person peace The timely redemption of complete and public property safety provides a strong guarantee.
(4) production cost is low, high production efficiency, with short production cycle, and a kind of double-deck crosslinked with silicane copper strips of the utility model is total The flame retardant coating for shielding steel wire woven armored converter cable simplifies fireproof construction technique, while two layers of friendship using longitudinal wrap technique Join material insulating layer, be crosslinked under warm water environment, the degree of cross linking is stablized, and traditional electron beam irradiation equipment and irradiation have been prevented The cost of workshop construction is high, or eliminates the assistance expense and freight of external coordination irradiation processing.
(5) production security is strong, and cross-linking process uses warm water crosslinking, and no operator's personal safety hidden danger avoids height Personnel injury of the energy electronic beam irradiation apparatus for operator.
(6) the high shielded cable of this structure can anti-electromagnetic induction and power supply line Conduction Interference, reduce inductance, prevent induced electricity Kinetic potential is excessive.Shielded layer both plays the role of that electromagnetic wave is inhibited externally to emit, and but also as the channel of short circuit current, can play The protective effect of property core;Centrosymmetrical structure has better electromagnetic compatibility due to the interchangeability of conducting wire, to inhibition electromagnetism Interference plays a role, and can offset the humorous odd times frequency in that of high order, improve the anti-interference of Special cable of frequency-variable electric motor, Reduce the electromagnetic radiation in whole system.
(7) cable stretching resistance is strong, has flexibility.Using braided steel wire as armor, the tension of cable can be effectively improved Performance, meanwhile, in laid processes, the more conventional steel-tape armouring of steel wire woven armored layer has more flexible flexibility, so that peace It fills simple and convenient.
To sum up, a kind of double-deck crosslinked with silicane copper strips of the utility model always shields the structure letter of steel wire woven armored converter cable Single, wide market, electric property is superior, electromagnetic wave shielding is strong, resistance to ag(e)ing is splendid, production process high safety, cable Long service life, low smoke, zero halogen are environmentally protective.
Detailed description of the invention
Fig. 1 is that a kind of double-deck crosslinked with silicane copper strips of the utility model always shields steel wire woven armored converter cable (armouring Type) schematic cross-section.
Fig. 2 is that a kind of double-deck crosslinked with silicane copper strips of the utility model always shields steel wire woven armored converter cable (non-armour Dress) schematic cross-section.
Specific embodiment
The present invention will be further described with reference to embodiments:
Embodiment 1
Fig. 1 is that a kind of double-deck crosslinked with silicane copper strips of the utility model always shields steel wire woven armored converter cable (armouring Type) schematic cross-section.
Present embodiment discloses a kind of double-deck crosslinked with silicane copper strips always to shield steel wire woven armored converter cable (armouring Type), as shown in Figure 1, the first anaerobic copper conductor 1 is phase conductor, the second anaerobic copper conductor 13 is gnd conductor, first nothing Oxygen copper conductor 1 and the second anaerobic copper conductor 13 are the conductor that solid or stranded copper wire is twisted, and copper wire is greater than for purity 99.98% red copper.
Successively longitudinal wrap ceramic fire resisting composite band 2 outside first anaerobic copper conductor 1, extrudes 90 DEG C of organosilane crosslinked polyethylene insulations 3 and 90 DEG C of silane crosslinked halogen-free low-smoke flame-proof polyolefin insulation 4.Successively the fire resisting of longitudinal wrap ceramic is multiple outside second anaerobic copper conductor 13 Crossed belt 2 extrudes 90 DEG C of organosilane crosslinked polyethylene insulation 3 and 90 DEG C silane crosslinked halogen-free low-smoke flame-proof polyolefin insulation 4.Wherein One anaerobic copper conductor 1 and the second anaerobic copper conductor 13 are the conductor that stranded copper wire is twisted, and conductivity is high, are transmitted as electric current Carrier, the ceramic fire resisting composite band 2 of the outer longitudinal wrap of the conductor, as cable fire layer, longitudinal wrap ceramic fire resisting composite band Technique improves production efficiency simultaneously instead of the technique of the wrapped mica tape of traditional fire-resistant wires, overcomes in flame calcination feelings Under condition, since Mica tape is not close, in the case of by flame calcination, mica powder falls off, and then the shortcomings that influence fire resistance, Meanwhile ceramic fire resisting composite band has under conventional environment, moisture-sensitive, can not in very short time in flame calcination Calcination forms dense protective layer, cooling isolation fire source, so that wire body remains to stablize the excellent spy of continued power at ceramic shell Property.
90 DEG C of organosilane crosslinked polyethylene insulations, 3,90 DEG C of silane crosslinked halogen-free low-smoke flame-proof polyolefin insulation 4 are collectively as electricity Gas protects cross linked insulation layer, and process thickness is than being about 3:7, and to guarantee and enhance the integral insulation performance of cable, and the two is same When by warm water environment realization be crosslinked, the design of such process structure, using material property advantage, avoid because merely be crosslinked gather Ethylene flame-resistant insulation is poor, the defect that simple low smoke, zero halogen insulated with material dampness insulation resistance is decreased obviously, good comprehensive material Advantage is expected, so that cable overall performance is obviously improved, it is ensured that electric property, the resistance to ag(e)ing of cable are excellent, so that cable The service life is longer, and low smoke, zero halogen is environmentally protective.Three phase line insulated wire cores with dielectric layers insulate with three ground wires Core twisted synthesizing cable, flame resistant filler rope 5 is filled at stranding gap, and cable core outer layer uses the first low-smoke non-halogen flame-retardant band 6 (four layers of low-smoke non-halogen flame-retardant glass fiber tape overlapping are wrapped), as the first cooling refuge floor, wrapped Duplication is about bandwidth 40%~50%, wrapped flat and smooth no protrusion.
Outside first cooling refuge floor, the first low smoke halogen-free flame-retardant polyolefin sheath 7 is successively extruded, wrapped copper strips is overlapped Total shielded layer 8, wrapped the second low-smoke non-halogen flame-retardant band 9 (the second cooling refuge floor, two layers of low-smoke non-halogen flame-retardant glass fibre Band), the second low-smoke non-halogen flame-retardant separation layer 10 (the second cooling refuge floor, low smoke halogen-free flame-retardant polyolefin) extruded, steel wire is compiled Armor 11 is knitted, low-smoke and halogen-free flame retardant polyolefin jacket 12 (third low-smoke and halogen-free flame retardant polyolefin jacket) is extruded.
Embodiment 2
Fig. 2 is that a kind of double-deck crosslinked with silicane copper strips of the utility model always shields steel wire woven armored converter cable (non-armour Dress) schematic cross-section.
The present embodiment is substantially the same with embodiment 1, unlike, in the present embodiment process structure, do not include the second low cigarette Halogen-free flameproof separation layer 10 and steel wire woven armored 11, but after the completion of the second low-smoke non-halogen flame-retardant 9 technique of band, directly extrude Low-smoke and halogen-free flame retardant polyolefin jacket 12 (oversheath), as the fire-retardant outer jacket of cable, preferably, in such cases low The oxygen index (OI) of cigarette halogen-free anti-flaming polyolefin protective cover material should be greater than 34, to guarantee the flame retardant property of cable entirety.
The utility model is not limited to the above embodiment a kind of recorded novel double-deck crosslinked with silicane copper strips and always shields steel wire Armouring converter cable is woven, wherein the change of oxygen-free copper conductor structure, the change of each thickness degree are in the guarantor of the utility model Within the scope of shield.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited System;Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of Technical characteristic is equivalently replaced;And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new The range of each embodiment technical solution of type.

Claims (6)

1. a kind of bilayer crosslinked with silicane copper strips always shields steel wire woven armored converter cable, which is characterized in that including First Line Core and the second core, first core are phase conductor, and it is resistance to that from-inner-to-outer is followed successively by anaerobic copper conductor, the ceramic of longitudinal wrap Fiery composite band, the organosilane crosslinked polyethylene insulation extruded and the insulation of silane crosslinked halogen-free low-smoke flame-proof polyolefin;Second line Core is gnd conductor, and from-inner-to-outer is followed successively by the ceramic fire resisting composite band of anaerobic copper conductor, longitudinal wrap, the crosslinked with silicane extruded Polyethylene insulation and the insulation of silane crosslinked halogen-free low-smoke flame-proof polyolefin;First core and the second core twisted synthesizing cable, at Cable core gap, using flame resistant filler rope fill, cable core from-inner-to-outer be disposed with the first low-smoke non-halogen flame-retardant band, First low smoke halogen-free flame-retardant polyolefin inner sheath, copper belt, the second low-smoke non-halogen flame-retardant band, the second low smoke and zero halogen resistance extruded Fire polyolefin separators, steel wire woven armored layer and third low smoke halogen-free flame-retardant polyolefin external sheath layer.
2. a kind of double-deck crosslinked with silicane copper strips always shields steel wire woven armored converter cable according to claim 1, special Sign is, three first cores and three second core twisted synthesizing cables.
3. a kind of double-deck crosslinked with silicane copper strips always shields steel wire woven armored converter cable according to claim 1, special Sign is that the anaerobic copper conductor is the conductor that solid or stranded copper wire is twisted.
4. a kind of double-deck crosslinked with silicane copper strips always shields steel wire woven armored converter cable according to claim 1, special Sign is that the ceramic fire resisting composite band includes two layers of pyroceram silk strap, two layers of pyroceram silk strap Centre is pasted with one layer of Ceramic silicon rubber.
5. a kind of double-deck crosslinked with silicane copper strips always shields steel wire woven armored converter cable according to claim 1, special Sign is that the first low-smoke non-halogen flame-retardant band is low-smoke non-halogen flame-retardant glass fiber tape.
6. a kind of double-deck crosslinked with silicane copper strips always shields steel wire woven armored converter cable according to claim 1, special Sign is that the thickness ratio of the organosilane crosslinked polyethylene insulation and the insulation of silane crosslinked halogen-free low-smoke flame-proof polyolefin is 3:5-9.
CN201821862668.7U 2018-11-13 2018-11-13 It is a kind of bilayer crosslinked with silicane copper strips always shield steel wire woven armored converter cable Active CN208970199U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111755163A (en) * 2020-07-07 2020-10-09 安徽徽宁电器仪表集团有限公司 High-temperature-resistant 1000 ℃ electric wire and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111755163A (en) * 2020-07-07 2020-10-09 安徽徽宁电器仪表集团有限公司 High-temperature-resistant 1000 ℃ electric wire and preparation method thereof

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