CN101950615A - Flexible fireproof mineral insulated cable and manufacturing method thereof - Google Patents
Flexible fireproof mineral insulated cable and manufacturing method thereof Download PDFInfo
- Publication number
- CN101950615A CN101950615A CN 201010516054 CN201010516054A CN101950615A CN 101950615 A CN101950615 A CN 101950615A CN 201010516054 CN201010516054 CN 201010516054 CN 201010516054 A CN201010516054 A CN 201010516054A CN 101950615 A CN101950615 A CN 101950615A
- Authority
- CN
- China
- Prior art keywords
- inorganic material
- copper
- mineral insulated
- insulated cable
- sheath
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a flexible fireproof mineral insulated cable and a manufacturing method thereof, comprising copper conductor cores, inorganic material-made insulating tapes and a copper sheath, wherein at least two copper conductor cores are formed by twisting soft copper wire bunches, the copper conductor cores are wrapped in the inorganic material-made insulating tapes, the copper sheath is an oxygen-free dephosphorizing copper sheath, and inorganic material-made fillers are also arranged between the inorganic material-made insulating tapes and the oxygen-free dephosphorizing copper sheath. The manufacturing method of the flexible fireproof mineral insulated cable comprises the steps of twisting of the soft copper wire bunches into the conductor cores, wrapping of the conductor cores, filling formation and processing of the copper sheath. According to the invention, the soft copper wire bunches are twisted into conductors, high temperature-resisting, noncombustible inorganic material-made fillers are wrapped into insulated, inorganic material for extruded filling formation, and oxygen-free dephosphorizing copper pipe is used as the sheath. Such a structure can achieve incomparable superiors in electrical properties, mechanical properties, fireproof and explosion-proof performances, environmental friendliness and other aspects, compared with other common cables.
Description
Technical field
The present invention relates to field of cables, specifically a kind of fire resistant flexible mineral insulated cable and manufacture method thereof.
Background technology
People's life is the most valuable in the world.Personal safety and property safety are most important.In social activities, in the clothing, food, lodging and transportion--basic necessities of life process, in the place of guaranteeing the person and property safety, in fire-proof and explosion-proof etch-proof place, in public illumination and electric power system, in important pivot engineering places such as industrial system, nuclear facility, military installations, people need select for use a kind of not only soft bending resistance but also fire protection flame retarding, continuous length length, low cost of manufacture, installation to lay fire resistant flexible mineral insulated cable simple, low-carbon environment-friendly and realize above-mentioned repertoire.Traditional fire resistant flexible mineral insulated cable is all very outstanding on anti-very fast high temperature and fire protecting performance, but they are not fine on waterproof, softness.
Summary of the invention
The purpose of this invention is to provide a kind of fire resistant flexible mineral insulated cable and manufacture method thereof, it selects suitable, advanced, practical material for use, and has suitable, advanced, practical structure.
The object of the present invention is achieved like this: it includes copper conductor core, inorganic material insulating tape and copper sheath, it is characterized in that: described copper conductor core has two at least, this copper conductor core forms by the annealed copper wire bunch is stranded, outside the copper conductor core, be surrounded with the inorganic material insulating tape, described copper sheath is an anaerobic dephosphorization copper sheath, also is provided with inorganic material and fills between inorganic material insulating tape and anaerobic dephosphorization copper sheath.
Described inorganic material insulating tape is a synthetic mica tape.
Described inorganic material is filled to the insulation clay.
A kind of manufacture method of fire resistant flexible mineral insulated cable is characterized in that: it includes following operating procedure:
(1) many annealed copper wire bunch is twisted into conductor thread core again;
(2) every conductor thread core is wrapped with the inorganic material insulating tape;
(3) make itself and all conductor thread cores become a cylindrical integral with the inorganic material filling molding;
(4) at the outermost layer anaerobic dephosphorization copper sheath of cable after the processing process of overmolding, the welding of vertical bag argon arc, successive roll formula undergauge, cable integer sizing, cable cover(ing) embossing, finish manufacturing.
Described inorganic material insulating tape is a synthetic mica tape.
Described inorganic material is filled to the insulation clay.
The present invention adopts stranded the forming of annealed copper wire bunch to make that conductor, high temperature resistant incombustible inorganic material band are wrapped makees that insulation, inorganic material extrude filling molding, anaerobic dephosphorization copper pipe is made sheath.This structure makes it in all many-sides such as electric property, mechanical performance, fire-proof and explosion-proof performance and environmental-protecting performances the unrivaled superiority of other common cable be arranged.The fire resistant flexible mineral insulated cable can be applied to the power supply in all kinds of building ' s fire equipment, petrochemical equipment, power plant, nuclear power station visual plant and other high temperature, inflammable, explosive place.Because material therefor is inorganic matter, determined that fundamentally cable can not burning or combustion-supporting.Under the fire condition, still can move, and can not produce any pernicious gas, also can not propagate burning things which may cause a fire disaster.Even under 950 ℃ condition, the still sustainable operation of cable 3 hours.And other any cable in the past all can't be realized above-mentioned functions.
In addition, anaerobic dephosphorization copper sheath is an excellence conductor, because earth resistance is very low, directly ground connection is used as ground wire, is best ground connection PE line, and function of shielding is very strong, effectively prevents the interference of external electromagnetic field; The fusing point of copper is 1,083 ℃, and it is high temperature resistant, fire prevention, waterproof, anticorrosion, and security performance is good, can be in flame normal power supply, the starting fire-extinguishing apparatus reduces fire damage, and is also reliable especially to personal safety.Copper sheath arrives the cable total length continuously, has improved the ground protection sensitivity and the reliability of cable greatly; The inorganic material insulating tape adopts synthetic mica tape, except having outstanding dielectric property, also has good flexibility, running into the volatilization that does not have harmful smog when burning takes place naked light basically, have good resistance to elevated temperatures and flame resistance energy, so it is not only effective that this product is used for cable, and safety and environmental protection very; Inorganic material is filled and is adopted the insulation clay, and flexibility is good, plays fixing and the protection construction of cable and fireproof effect.
Description of drawings
Fig. 1 is a cross section structure simplified schematic diagram of the present invention.
The present invention is described in further detail by example below in conjunction with accompanying drawing, but following example only is the present invention's example wherein, the rights protection scope of not representing the present invention and being limited, the scope of the present invention is as the criterion with claims.
Embodiment
As shown in Figure 1, its primary structure of fire resistant flexible mineral insulated cable of the present invention be three by the stranded copper conductor core 1 that forms of annealed copper wire bunch, synthetic mica tape 2 and anaerobic dephosphorization copper sheath 4, outside copper conductor core 1, be surrounded with synthetic mica tape 2, between synthetic mica tape 2 and anaerobic dephosphorization copper sheath 4, also be provided with insulation clay 3.
The manufacture method of fire resistant flexible mineral insulated cable includes following operating procedure:
(1) many annealed copper wire bunch are twisted into a conductor thread core again, it has good bending and extension characteristics, and is all more soft more than in the past heavy in section circular rod type copper conductor or strands copper conductor;
(2) three conductor thread cores are wrapped with synthetic mica tapes, it is high temperature resistant, do not burn, and multilayer is wrapped every conductor thread core outside;
(3) extruding filling molding with the insulation clay makes itself and three conductor thread cores become a cylindrical integral;
(4) at the outermost layer anaerobic dephosphorization copper sheath of cable after the processing process of overmolding, the welding of vertical bag argon arc, successive roll formula undergauge, cable integer sizing, cable cover(ing) embossing, have good flexural property and mechanical strength.
This manufacturing process is simple, and automaticity improves greatly, and the cross-section of cable is big, and single-core cable can reach 400 square millimeters.
The cable continuous length is long, can satisfy power supply length needs, every continuous length can reach 3, more than the 000m, greatly reduced the operation passage of cables manufacturing, eliminated thoroughly that mineral insulated cable length is subjected to the copper pipe effect length and drawback with length restriction greatly reduces manufacturing cost, low-carbon environment-friendly.
Can realize purpose of the present invention in sum.
Claims (6)
1. fire resistant flexible mineral insulated cable, it includes copper conductor core, inorganic material insulating tape and copper sheath, it is characterized in that: described copper conductor core has two at least, this copper conductor core forms by the annealed copper wire bunch is stranded, outside the copper conductor core, be surrounded with the inorganic material insulating tape, described copper sheath is an anaerobic dephosphorization copper sheath, also is provided with inorganic material and fills between inorganic material insulating tape and anaerobic dephosphorization copper sheath.
2. fire resistant flexible mineral insulated cable according to claim 1 is characterized in that: described inorganic material insulating tape is a synthetic mica tape.
3. fire resistant flexible mineral insulated cable according to claim 1 is characterized in that: described inorganic material is filled to the insulation clay.
4. the manufacture method of a fire resistant flexible mineral insulated cable, it is characterized in that: it includes following operating procedure:
(1) many annealed copper wire bunch is twisted into conductor thread core again;
(2) every conductor thread core is wrapped with the inorganic material insulating tape;
(3) make itself and all conductor thread cores become a cylindrical integral with the inorganic material filling molding;
(4) at the outermost layer anaerobic dephosphorization copper sheath of cable after the processing process of overmolding, the welding of vertical bag argon arc, successive roll formula undergauge, cable integer sizing, cable cover(ing) embossing, finish manufacturing.
5. fire resistant flexible mineral insulated cable according to claim 4 is characterized in that: described inorganic material insulating tape is a synthetic mica tape.
6. fire resistant flexible mineral insulated cable according to claim 4 is characterized in that: described inorganic material is filled to the insulation clay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010516054 CN101950615A (en) | 2010-10-22 | 2010-10-22 | Flexible fireproof mineral insulated cable and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010516054 CN101950615A (en) | 2010-10-22 | 2010-10-22 | Flexible fireproof mineral insulated cable and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101950615A true CN101950615A (en) | 2011-01-19 |
Family
ID=43454068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010516054 Pending CN101950615A (en) | 2010-10-22 | 2010-10-22 | Flexible fireproof mineral insulated cable and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101950615A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208337A (en) * | 2013-04-15 | 2013-07-17 | 安徽瑞侃电缆科技有限公司 | Process for producing flexible inorganic insulating fire-resisting cable |
| CN104021854A (en) * | 2014-05-09 | 2014-09-03 | 安徽埃克森科技集团有限公司 | Sealing anti-explosion cable |
| CN104751968A (en) * | 2015-03-20 | 2015-07-01 | 特变电工(德阳)电缆股份有限公司 | Fireproof cable and manufacturing method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1242866A (en) * | 1997-10-14 | 2000-01-26 | 古河电气工业株式会社 | Multi-layer insulated wire and transformer made by using same |
| CN1424372A (en) * | 2002-12-18 | 2003-06-18 | 浙江久立耐火电缆有限公司 | Putty cable sealing insulative material and its manufacture |
| CN2585373Y (en) * | 2002-10-14 | 2003-11-05 | 江苏上上电缆集团有限公司 | Copper core and copper shield sleeve cable with mineral insulation at rated voltage of 3KV and below |
| CN1542868A (en) * | 2003-04-28 | 2004-11-03 | 上海摩恩电气有限公司 | Light flexible splice free fire-proof cable |
| CN2669325Y (en) * | 2003-09-16 | 2005-01-05 | 上海中月电缆技术有限公司 | Halogen-free fire-retardant cross-linked cable with metal composite sleeve |
| CN200969244Y (en) * | 2006-10-30 | 2007-10-31 | 江苏扬子江线缆有限公司 | Novel fireproof cable |
| CN201191522Y (en) * | 2008-04-17 | 2009-02-04 | 中利科技集团股份有限公司 | Copper coated aluminum uni-core flame-retardant refractory double sheath flexible electric cable |
-
2010
- 2010-10-22 CN CN 201010516054 patent/CN101950615A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1242866A (en) * | 1997-10-14 | 2000-01-26 | 古河电气工业株式会社 | Multi-layer insulated wire and transformer made by using same |
| CN2585373Y (en) * | 2002-10-14 | 2003-11-05 | 江苏上上电缆集团有限公司 | Copper core and copper shield sleeve cable with mineral insulation at rated voltage of 3KV and below |
| CN1424372A (en) * | 2002-12-18 | 2003-06-18 | 浙江久立耐火电缆有限公司 | Putty cable sealing insulative material and its manufacture |
| CN1542868A (en) * | 2003-04-28 | 2004-11-03 | 上海摩恩电气有限公司 | Light flexible splice free fire-proof cable |
| CN2669325Y (en) * | 2003-09-16 | 2005-01-05 | 上海中月电缆技术有限公司 | Halogen-free fire-retardant cross-linked cable with metal composite sleeve |
| CN200969244Y (en) * | 2006-10-30 | 2007-10-31 | 江苏扬子江线缆有限公司 | Novel fireproof cable |
| CN201191522Y (en) * | 2008-04-17 | 2009-02-04 | 中利科技集团股份有限公司 | Copper coated aluminum uni-core flame-retardant refractory double sheath flexible electric cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208337A (en) * | 2013-04-15 | 2013-07-17 | 安徽瑞侃电缆科技有限公司 | Process for producing flexible inorganic insulating fire-resisting cable |
| CN104021854A (en) * | 2014-05-09 | 2014-09-03 | 安徽埃克森科技集团有限公司 | Sealing anti-explosion cable |
| CN104751968A (en) * | 2015-03-20 | 2015-07-01 | 特变电工(德阳)电缆股份有限公司 | Fireproof cable and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202058496U (en) | Inorganic-mineral-insulated fire-resistant cable with copper core and stainless steel sheath | |
| CN202258471U (en) | Environment-friendly fire-proof medium-voltage cable | |
| CN202584880U (en) | Polyvinyl chloride insulation and sheathed thin steel wire armored fireproof power cable | |
| CN101950615A (en) | Flexible fireproof mineral insulated cable and manufacturing method thereof | |
| CN211455334U (en) | Flexible fireproof cable with inorganic mineral insulation oxygen-separation layer and copper sheath | |
| CN112908545A (en) | High-strength flexible fireproof and fire-resistant cable and manufacturing method thereof | |
| CN203444840U (en) | Ultra soft high flame retardancy fireproof cable | |
| CN202758644U (en) | A fire-resistant power flexible cable | |
| CN210606749U (en) | Low-smoke environment-friendly halogen-free flame-retardant fire-resistant cable | |
| CN214897764U (en) | High-strength flexible fireproof and fire-resistant cable | |
| RU113413U1 (en) | MOUNTING CABLE, PREVIOUSLY EXPLOSIVE AND FIRE-SAFE, INCLUDING FOR EXTREMELY SAFE CHAINS | |
| CN201758017U (en) | Low-smoke halogen-free environment-friendly flame-retardant intrinsic safety system control cable | |
| CN201812540U (en) | Flexible fireproofing mineral insulated cable | |
| CN203760182U (en) | Fireproof flame-retardant cable | |
| CN2739769Y (en) | Environmental-protection fire-resistant cable with silicon rubber structure | |
| CN219105815U (en) | Low-smoke flame-retardant fire-resistant power cable | |
| CN104575807A (en) | High-fire-resistant power cable | |
| CN211087946U (en) | Flexible medium-voltage fireproof cable | |
| CN203760121U (en) | Low-smoke halogen-free anti-interference fireproof flexible cable | |
| RU192507U1 (en) | Fire resistant electrical cable | |
| CN204360821U (en) | The fire-resistant Anti-interference cable of a kind of stretch-proof | |
| CN203520914U (en) | Flexible fireproof cable | |
| CN220137996U (en) | Fire-resistant B1-level cable | |
| CN219591157U (en) | B1-level flame-retardant mineral composite insulation corrugated copper sheath fireproof cable | |
| RU106029U1 (en) | MOUNTING CABLE, PREVIOUSLY EXPLOSIVE AND FIRE-SAFE, INCLUDING FOR EXTREMELY SAFE CHAINS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20110119 |