EP1172827A1 - Sicherheits-Kabel - Google Patents
Sicherheits-Kabel Download PDFInfo
- Publication number
- EP1172827A1 EP1172827A1 EP01401590A EP01401590A EP1172827A1 EP 1172827 A1 EP1172827 A1 EP 1172827A1 EP 01401590 A EP01401590 A EP 01401590A EP 01401590 A EP01401590 A EP 01401590A EP 1172827 A1 EP1172827 A1 EP 1172827A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cable
- sheath
- fillers
- protective sheath
- insulated
- 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.)
- Withdrawn
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
Definitions
- the invention relates more particularly to behavior of electrical cables in the presence of fire to limit their destruction.
- the oldest structures of the cables of safety included mineral insulating sleeves or composed of textile ribbons based on mica and / or glass fibers, constituting barriers of fire resistance around electrical conductors, requiring one or more additional steps relatively long and expensive manufacturing.
- the objective of the invention is to provide a safety electric cable having resistance to the spread of the fire and continuity while improving its cost of manufacturing compared to previous cables.
- polyethylene PE polypropylene
- PP polypropylene
- EPR ethylene / propylene / rubber
- EPDM ethylene / propylene / diene / monomer
- EVA poly (ethylene / vinyl acetate)
- EBA poly (ethylene / butyl acrylate)
- EBA poly (ethylene / ethyl acrylate EEA.
- the material of the insulating sheath 12 also contains one or more fillers, at least part of which is ceramizable, and thus has the capacity to give rise to a gangue having a certain mechanical resistance under the effect of the high temperatures of a fire.
- the packing mass 2 is solid without halogen and is essentially olefinic. It preferably consists of a polyolefin or an olefinic type copolymer. Examples of polymers which can be used are for example PE, EVA or EPR.
- the packing mass 2 contains numerous anhydrous fillers. Typically, the packing mass contains relatively 50% to 80% by weight of fillers anhydrous.
- Anhydrous fillers are for example made up of one of the following components: chalk, kaolin, talc, dolomite, silica, magnesia, alumina, calcium sulfate.
- the material of the mass of jam 2 contains a coupling agent, such that alkoxysilane, possibly directly linked to olefinic polymer essentially constituting the packing mass, ensuring cohesion between the fillers and the polymer.
- a coupling agent such that alkoxysilane, possibly directly linked to olefinic polymer essentially constituting the packing mass, ensuring cohesion between the fillers and the polymer.
- this is preferably thermoplastic which does not require crosslinking; in fact, the crosslinking of the sheath requires costly, time-consuming operations several hours or even several days, such than steaming or electronic bombardment.
- each insulating sheath 12 gives a additional benefit to the invention which is the reduction of the thickness of the insulating sheath 12. From in addition, a high charge rate and by therefore a low calorific value of the packing material results in reduction the thickness of the protective sheath 3.
- the gain in quantity of materials used for the sheath insulating 12 and the protective sheath 3 reduces the cost of the cable, as well as the release of smoke and toxic gases.
- the specificity of the SZ manufacturing process requires to put immediately after wiring the protective sheath 3 which maintains the assembly of insulated conductors in the agreed position.
- the SZ assembly which has alternating twist directions of the conductors insulated, i.e. a section of insulated conductors with direct propeller pitch, then a section of insulated conductors with retrograde helix pitches and so on, remove the intermediate step hand consuming conductor assembly of work in the cable manufacturing process.
- the extrusion of the packing mass 2 and the external protective sheath 3 is made on insulated conductors 1 grouped in the form of a classic helical assembly according to a single helical direction.
- an electrical safety cable CA1 is armored by covering the cable CA in FIG. 1 with a metal frame 4 extending around the sheath 3 along a helix or several parallel or crossed helices , as shown in FIG. 3, either of a corrugated reinforcement with transverse-circular, or longitudinal undulations, or alternatively helical, and of a final flame-retardant sheath 5 surrounding the helical or corrugated reinforcement 4.
- each of the isolated conductors of the cable sample is energized electrical test which depends on the nominal voltage cable typically within a range of 100/170, 100/300, 300/500, 450/750 or 600/1000 V.
- test N ° 3 of standard NF C 32-070 is carried out on four samples of the CAa cable with the composition described above, short-circuits appear after the following durations: CAa cable test 1 test 2 test 3 test 4 11a in Cu and 12a in silicone; 3a silicone 90 mins 65 mins 90 mins 70 mins
- the cable CA according to the invention shown in FIG. 2, or in the Figure 3 exhibits a marked fire behavior better than that of the known cable CAa shown in the figure 1.
- the composition of the packing mass 2 therefore constitutes a determining parameter for improve the fire resistance of safety cables.
- This fire propagation evaluation test consists in testing samples of the cable according to the invention consisting of one or more sections of length at least equal to 1600 mm under the effect of heat in a vertical test oven. ventilated environment.
- the test is carried out in a glazed cabin which has two registers at its lower part, the operation of which makes it possible to vary the speed of flow of the ventilation air.
- the cabin is ventilated by means of an extractor mounted at the top of the cabin and whose air flow speed through the oven when the ventilation is running, must be equal to 120 m / min ⁇ 10 m / min.
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Insulated Conductors (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0009153 | 2000-07-12 | ||
FR0009153A FR2811802B1 (fr) | 2000-07-12 | 2000-07-12 | Cable electrique de securite |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1172827A1 true EP1172827A1 (de) | 2002-01-16 |
Family
ID=8852439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01401590A Withdrawn EP1172827A1 (de) | 2000-07-12 | 2001-06-18 | Sicherheits-Kabel |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1172827A1 (de) |
FR (1) | FR2811802B1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102934176A (zh) * | 2010-06-11 | 2013-02-13 | 奥林巴斯株式会社 | 复合电缆及复合电缆的制造方法 |
EP3428931A1 (de) * | 2017-07-13 | 2019-01-16 | Nexans | Feuerfestes kabel |
CN111063482A (zh) * | 2019-12-27 | 2020-04-24 | 临沂启阳电缆有限公司 | 一种铜护套复合耐火绝缘电缆及其制造方法 |
US20210035710A1 (en) * | 2019-07-12 | 2021-02-04 | Nexans | Cable comprising a fire-resistant ceramic layer |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2396393A1 (fr) * | 1977-06-30 | 1979-01-26 | Gen Electric | Cable electrique, multi-conducteur, isole et resistant a l'inflammation |
FR2419736A1 (fr) * | 1978-03-13 | 1979-10-12 | Gen Electric | Procede pour isoler du feu des composants electriques |
GB2043326A (en) * | 1979-02-26 | 1980-10-01 | Kabel Metallwerke Ghh | Fire resistant cable |
US4331733A (en) * | 1980-12-10 | 1982-05-25 | General Electric Company | Flame-retardant polyolefin compositions, their method of preparation and insulated electrical conductors manufactured therewith |
DE4332914A1 (de) * | 1993-09-23 | 1995-03-30 | Siemens Ag | Flammwidriges elektrisches Kabel |
-
2000
- 2000-07-12 FR FR0009153A patent/FR2811802B1/fr not_active Expired - Fee Related
-
2001
- 2001-06-18 EP EP01401590A patent/EP1172827A1/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2396393A1 (fr) * | 1977-06-30 | 1979-01-26 | Gen Electric | Cable electrique, multi-conducteur, isole et resistant a l'inflammation |
FR2419736A1 (fr) * | 1978-03-13 | 1979-10-12 | Gen Electric | Procede pour isoler du feu des composants electriques |
GB2043326A (en) * | 1979-02-26 | 1980-10-01 | Kabel Metallwerke Ghh | Fire resistant cable |
US4331733A (en) * | 1980-12-10 | 1982-05-25 | General Electric Company | Flame-retardant polyolefin compositions, their method of preparation and insulated electrical conductors manufactured therewith |
DE4332914A1 (de) * | 1993-09-23 | 1995-03-30 | Siemens Ag | Flammwidriges elektrisches Kabel |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102934176A (zh) * | 2010-06-11 | 2013-02-13 | 奥林巴斯株式会社 | 复合电缆及复合电缆的制造方法 |
US20130098657A1 (en) * | 2010-06-11 | 2013-04-25 | Olympus Corporation | Composite cable and method of manufacturing composite cable |
US9336930B2 (en) * | 2010-06-11 | 2016-05-10 | Olympus Corporation | Composite cable and method of manufacturing composite cable |
EP3428931A1 (de) * | 2017-07-13 | 2019-01-16 | Nexans | Feuerfestes kabel |
US20190131034A1 (en) * | 2017-07-13 | 2019-05-02 | Nexans | Fire Resistant Cable |
US10692629B2 (en) * | 2017-07-13 | 2020-06-23 | Nexans | Fire resistant cable |
US20210035710A1 (en) * | 2019-07-12 | 2021-02-04 | Nexans | Cable comprising a fire-resistant ceramic layer |
US11810695B2 (en) * | 2019-07-12 | 2023-11-07 | Nexans | Cable comprising a fire-resistant ceramic layer |
CN111063482A (zh) * | 2019-12-27 | 2020-04-24 | 临沂启阳电缆有限公司 | 一种铜护套复合耐火绝缘电缆及其制造方法 |
Also Published As
Publication number | Publication date |
---|---|
FR2811802A1 (fr) | 2002-01-18 |
FR2811802B1 (fr) | 2004-11-19 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20050426 |