CN207397789U - A kind of fire safe type cross-linked polyethylene insulated cable - Google Patents
A kind of fire safe type cross-linked polyethylene insulated cable Download PDFInfo
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- CN207397789U CN207397789U CN201721393141.XU CN201721393141U CN207397789U CN 207397789 U CN207397789 U CN 207397789U CN 201721393141 U CN201721393141 U CN 201721393141U CN 207397789 U CN207397789 U CN 207397789U
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Abstract
The utility model provides a kind of fire safe type cross-linked polyethylene insulated cable, more particularly to field of cable technology, including cable core, insulating layer is enclosed with outside cable core successively, buffer layer, flame retardant coating and oversheath, a cavity body is formed between insulating layer and buffer layer, several circular ring shape partition plates are arranged at intervals in cavity body, circular ring shape partition plate is set on insulating layer, cavity body is separated into several annular cavities by circular ring shape partition plate, fireproof silica gel is filled in annular cavity type body, several through holes are provided on circular ring shape partition plate, buffer layer includes first buffer layer and second buffer layer, second buffer layer is set in outside first buffer layer, wave-like protrusions are provided between first buffer layer and second buffer layer, flame retardant coating includes several fire-resistant rings and tinfoil layer, tinfoil layer is wrapped in the outside of second buffer layer, fire-resistant ring is set in the outside of tinfoil layer.The utility model has many advantages, such as that fire resistance and service life greatly increase, and remains to continue to work normally in the environment of burning.
Description
Technical field
The utility model is related to field of cable technology, and in particular to a kind of fire safe type cross-linked polyethylene insulated cable.
Background technology
Crosslinked cable is the abbreviation of cross-linked polyethylene insulated cable.Crosslinked cable be suitable for power frequency ac voltage 500KV and
In following electric line.The high-tension cable overwhelming majority all employs crosslinked polyetylene insulated at present.Crosslinked cable is conveying
The conductor of communication signal is related to the quality and safety of communication signal.Well known crosslinked cable includes conductor, outside conductor
It is fixed with insulating layer.There are following defects in use for this existing crosslinked cable：Because this crosslinked cable is not resistance to
Fire bed, when crosslinked cable is placed in the environment of burning, crosslinked cable cannot be guaranteed that communication signal normally passes because of the influence of big fire
It is defeated, it causes damages.
Utility model content
The technical problem to be solved by the present invention is to provide one kind, and there is fire resistance and service life to greatly increase, and
Remain to continue to the fire safe type cross-linked polyethylene insulated cable of normal work in the environment of burning.
In order to solve the above-mentioned technical problem, the utility model provides a kind of fire safe type cross-linked polyethylene insulated cable, including
Cable core is enclosed with insulating layer, buffer layer, flame retardant coating and oversheath outside cable core, one is formed between insulating layer and buffer layer successively
A cavity body is arranged at intervals with several circular ring shape partition plates in cavity body, and circular ring shape partition plate is set on insulating layer, and circular ring shape every
Cavity body is separated into several annular cavities by plate, and fireproof silica gel is filled in annular cavity type body, is also set up on circular ring shape partition plate
There are several through holes, buffer layer includes first buffer layer and second buffer layer, and second buffer layer is set in outside first buffer layer, and
Wave-like protrusions are additionally provided between first buffer layer and second buffer layer, flame retardant coating includes several fire-resistant rings and tinfoil layer, tin
Paper layer is wrapped in the outside of second buffer layer, and fire-resistant ring is set in the outside of tinfoil layer, and oversheath is wrapped in outside fire-resistant ring.
Preferably, the tinfoil layer winding is arranged on the outside of second buffer layer, and insulating layer and buffer layer can be protected to fire
It is not influenced in the environment of burning be subject to big fire.
Preferably, the tinfoil layer includes tinfoil item and ceramic thread, and tinfoil layer is twisted by tinfoil item and ceramic thread, and
Tinfoil layer winds the outside for being arranged on second buffer layer in the shape of a spiral, and tinfoil item and ceramic thread are twisted, and can form a flame-retardant layer,
With effective flame retardant effect.
Preferably, the through hole centered on the axial line of circular ring shape partition plate line in matrix distribution on circular ring shape partition plate,
When long-time is in the environment of burning, after buffer layer is burnt out, the fireproof silica gel in annular cavity type body can be by flow therethrough, to burning
Bad position is filled automatically, so as to protect insulating layer, cable core is prevented to be destroyed, and then remains to continue in the environment of burning
Maintain normal work.
Preferably, the fire-resistant ring is cirque structure, and fire-resistant ring equi-spaced apart is set in the outside of tinfoil layer, can be into
Being protected to tinfoil layer for one step, adds the fire resistance of tinfoil layer.
Preferably, the oversheath is pe sheath, can be played a protective role to the part in oversheath.
The advantages of the utility model：Greatly increased with fire resistance and service life, and remain in the environment of burning after
Continuous the advantages that maintaining normal work.
Description of the drawings
Fig. 1 is a kind of structure diagram of fire safe type cross-linked polyethylene insulated cable of the utility model；
Fig. 2 is a kind of circular ring shape partition position structure chart of fire safe type cross-linked polyethylene insulated cable of the utility model；
Fig. 3 is a kind of tinfoil layer structure schematic diagram of fire safe type cross-linked polyethylene insulated cable of the utility model；
In figure mark for：1st, cable core；2nd, insulating layer；21st, cavity body；22nd, circular ring shape partition plate；221st, through hole；23rd, circular ring shape
Cavity；24th, fireproof silica gel；3rd, buffer layer；31st, first buffer layer；32nd, second buffer layer；33rd, wave-like protrusions；4th, flame retardant coating；
41st, fire-resistant ring；42nd, tinfoil layer；421st, tinfoil item；422nd, ceramic thread；5th, oversheath.
Specific embodiment
The preferred embodiment of the utility model is described below in conjunction with the accompanying drawings.
As shown in Figs. 1-3, a kind of fire safe type cross-linked polyethylene insulated cable of the utility model, including cable core 1, cable core 1
Outside is enclosed with insulating layer 2, buffer layer 3, flame retardant coating 4 and oversheath 5 successively, and a sky is formed between insulating layer 2 and buffer layer 3
Cavity 21 is arranged at intervals with several circular ring shape partition plates 22 in cavity body 21, and circular ring shape partition plate 22 is set on insulating layer 2, and circle
Cavity body 21 is separated into several annular cavities 23 by annular partition 22, and fireproof silica gel 24, circle are filled in annular cavity 23
Several through holes 221 are additionally provided on annular partition 22, buffer layer 3 includes first buffer layer 31 and second buffer layer 32, and second is slow
It rushes layer 32 to be set in outside first buffer layer 31, and is additionally provided between first buffer layer 31 and second buffer layer 32 wavy convex
33 are played, flame retardant coating 4 includes several fire-resistant rings 41 and tinfoil layer 42, and tinfoil layer 42 is wrapped in the outside of second buffer layer 32, fire resisting
Circle 41 is set in the outside of tinfoil layer 42, and oversheath 5 is wrapped in outside fire-resistant ring 41.
Tinfoil layer 42 winds the outside for being arranged on second buffer layer 32, can protect insulating layer 2 and buffer layer 3 in the ring of burning
It is not influenced in border be subject to big fire, tinfoil layer 42 includes tinfoil item 421 and ceramic thread 422, and tinfoil layer 42 is by tinfoil item 421 and pottery
Porcelain line 422 is twisted, and tinfoil layer 42 winds the outside for being arranged on second buffer layer 32, tinfoil item 421 and pottery in the shape of a spiral
Porcelain line 42 is twisted, can form a flame-retardant layer, has effective flame retardant effect, through hole 221 is with the axial line of circular ring shape partition plate 22
Centered on line in matrix distribution on circular ring shape partition plate 22, when long-time is in the environment of burning, after buffer layer 3 is burnt out, annulus
Fireproof silica gel 24 in shape cavity 23 can be flowed by through hole 221, and the position burnt out is filled automatically, so as to protect insulation
Layer 2 prevents that cable core 1 is destroyed, and then remains to continue to work normally in the environment of burning, and fire-resistant ring 41 is circular ring shape knot
Structure, and 41 equi-spaced apart of fire-resistant ring is set in the outside of tinfoil layer 42, and further tinfoil layer 42 can be protected, added
The fire resistance of tinfoil layer 42, oversheath 5 are pe sheath, can be played a protective role to the part in oversheath 5.
The operation principle of the utility model is：Outermost oversheath 5 can play the part in oversheath 5 protection and make
With tinfoil item 421 and one flame-retardant layer of twisted formation of ceramic thread 422, fire-resistant ring 41 can further protect tinfoil layer 42
Shield adds the fire resistance of tinfoil layer 42, when long-time is in the environment of burning, after buffer layer 3 is burnt out, in annular cavity 23
Fireproof silica gel 24 can be flowed by through hole 221, the position burnt out is filled automatically, so as to protect insulating layer 2, prevents cable
Core 1 is destroyed, and then remains to continue to work normally in the environment of burning.
The advantages of the utility model：Greatly increased with fire resistance and service life, and remain in the environment of burning after
Continuous the advantages that maintaining normal work.
The foregoing is merely the preferred embodiments that utility model is created, and are not intended to limit the utility model creation,
All any modification, equivalent and improvement made within all spirit and principle created in the utility model etc., should be included in
Within the protection domain that the utility model is created.
Claims (6)
1. a kind of fire safe type cross-linked polyethylene insulated cable, it is characterised in that：Including cable core (1), wrapped up successively outside cable core (1)
There are insulating layer (2), buffer layer (3), flame retardant coating (4) and oversheath (5), a sky is formed between insulating layer (2) and buffer layer (3)
Cavity (21), cavity body (21) is interior to be arranged at intervals with several circular ring shape partition plates (22), and circular ring shape partition plate (22) is set in insulating layer
(2) on, and cavity body (21) is separated into several annular cavities (23) by circular ring shape partition plate (22), is filled out in annular cavity (23)
Filled with fireproof silica gel (24), several through holes (221) are additionally provided on circular ring shape partition plate (22), buffer layer (3) includes the first buffering
Layer (31) and second buffer layer (32), second buffer layer (32) are set in first buffer layer (31) outside, and first buffer layer
(31) be additionally provided with wave-like protrusions (33) between second buffer layer (32), flame retardant coating (4) include several fire-resistant rings (41) and
Tinfoil layer (42), tinfoil layer (42) are wrapped in the outside of second buffer layer (32), and fire-resistant ring (41) is set in tinfoil layer (42)
Outside, it is external that oversheath (5) is wrapped in fire-resistant ring (41).
2. a kind of fire safe type cross-linked polyethylene insulated cable according to claim 1, it is characterised in that：Tinfoil layer (42) twines
Around the outside for being arranged on second buffer layer (32).
3. a kind of fire safe type cross-linked polyethylene insulated cable according to claim 2, it is characterised in that：Tinfoil layer (42) wraps
Tinfoil item (421) and ceramic thread (422) are included, tinfoil layer (42) is twisted by tinfoil item (421) and ceramic thread (422), and tin
Paper layer (42) winds the outside for being arranged on second buffer layer (32) in the shape of a spiral.
4. a kind of fire safe type cross-linked polyethylene insulated cable according to claim 1, it is characterised in that：Through hole (221) with
Line is in matrix distribution on circular ring shape partition plate (22) centered on the axial line of circular ring shape partition plate (22).
5. a kind of fire safe type cross-linked polyethylene insulated cable according to claim 1, it is characterised in that：Fire-resistant ring (41) is
Cirque structure, and fire-resistant ring (41) equi-spaced apart is set in the outside of tinfoil layer (42).
6. a kind of fire safe type cross-linked polyethylene insulated cable according to claim 1, it is characterised in that：Oversheath (5) is
Pe sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721393141.XU CN207397789U (en) | 2017-10-26 | 2017-10-26 | A kind of fire safe type cross-linked polyethylene insulated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721393141.XU CN207397789U (en) | 2017-10-26 | 2017-10-26 | A kind of fire safe type cross-linked polyethylene insulated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207397789U true CN207397789U (en) | 2018-05-22 |
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ID=62326418
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721393141.XU Active CN207397789U (en) | 2017-10-26 | 2017-10-26 | A kind of fire safe type cross-linked polyethylene insulated cable |
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| CN (1) | CN207397789U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148019A (en) * | 2018-08-31 | 2019-01-04 | 安徽新科电缆集团股份有限公司 | A kind of fire protection flame retarding silicone rubber for cable |
| CN109599207A (en) * | 2018-10-10 | 2019-04-09 | 江苏泰祥电线电缆有限公司 | A kind of novel fire-resistant cable for ship |
| CN110189857A (en) * | 2019-06-18 | 2019-08-30 | 海盐九里电子有限公司 | A kind of Novel grass cutter signal wire |
| CN110189858A (en) * | 2019-06-18 | 2019-08-30 | 海盐九里电子有限公司 | A kind of grass trimmer shielding security protection line |
| CN111029029A (en) * | 2019-12-27 | 2020-04-17 | 临沂启阳电缆有限公司 | Isolated inorganic mineral insulated fireproof electric wire |
-
2017
- 2017-10-26 CN CN201721393141.XU patent/CN207397789U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148019A (en) * | 2018-08-31 | 2019-01-04 | 安徽新科电缆集团股份有限公司 | A kind of fire protection flame retarding silicone rubber for cable |
| CN109599207A (en) * | 2018-10-10 | 2019-04-09 | 江苏泰祥电线电缆有限公司 | A kind of novel fire-resistant cable for ship |
| CN110189857A (en) * | 2019-06-18 | 2019-08-30 | 海盐九里电子有限公司 | A kind of Novel grass cutter signal wire |
| CN110189858A (en) * | 2019-06-18 | 2019-08-30 | 海盐九里电子有限公司 | A kind of grass trimmer shielding security protection line |
| CN110189858B (en) * | 2019-06-18 | 2021-02-02 | 海盐九里电子有限公司 | Shielding security protection line for lawn mower |
| CN111029029A (en) * | 2019-12-27 | 2020-04-17 | 临沂启阳电缆有限公司 | Isolated inorganic mineral insulated fireproof electric wire |
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