ATE98045T1 - SECURITY SYSTEM AND A SIGNAL CARRYING ELEMENT FOR IT. - Google Patents
SECURITY SYSTEM AND A SIGNAL CARRYING ELEMENT FOR IT.Info
- Publication number
- ATE98045T1 ATE98045T1 AT88310110T AT88310110T ATE98045T1 AT E98045 T1 ATE98045 T1 AT E98045T1 AT 88310110 T AT88310110 T AT 88310110T AT 88310110 T AT88310110 T AT 88310110T AT E98045 T1 ATE98045 T1 AT E98045T1
- Authority
- AT
- Austria
- Prior art keywords
- conductive
- semi
- security system
- layer
- outer layer
- Prior art date
Links
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
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/328—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising violation sensing means
Landscapes
- Burglar Alarm Systems (AREA)
- Alarm Systems (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Communication Cables (AREA)
Abstract
A security system comprises a signal-carrying member and a detector for detecting a change in the resistance of a conductive path surrounding a core of the signal-carrying member. The conductive path comprises inner and outer layers (11,13) of semi-conductive tape separated by an insulating layer (12) but interconnected at one end. The semi-conductive tape of at least the outer layer is made of fibrous material such as carbon-loaded PTFE such that when a sharp object pierces the outer layer (13) and the insulating layer (12), semi-conductive fibres are dragged from the outer layer into contact with the inner layer (11) and form a conductive bridge between the layers.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8727092A GB2212644B (en) | 1987-11-19 | 1987-11-19 | A signal-carrying member for a security system |
EP88310110A EP0317101B1 (en) | 1987-11-19 | 1988-10-27 | A security system and a signal-carrying member therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE98045T1 true ATE98045T1 (en) | 1993-12-15 |
Family
ID=10627211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT88310110T ATE98045T1 (en) | 1987-11-19 | 1988-10-27 | SECURITY SYSTEM AND A SIGNAL CARRYING ELEMENT FOR IT. |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0317101B1 (en) |
JP (1) | JPH01289017A (en) |
AT (1) | ATE98045T1 (en) |
AU (1) | AU2216688A (en) |
DE (1) | DE3886011T2 (en) |
GB (1) | GB2212644B (en) |
HK (1) | HK126693A (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8814471D0 (en) * | 1988-06-17 | 1988-07-20 | Gore & Ass | Security enclosure |
GB2254720B (en) * | 1988-06-17 | 1993-02-17 | Gore & Ass | Security enclosures |
US4935699A (en) * | 1989-05-15 | 1990-06-19 | Westinghouse Electric Corp. | Means to detect and locate pinching and chafing of conduits |
GB9016795D0 (en) * | 1990-07-31 | 1990-09-12 | Weyrad Electronics Ltd | Improvements relating to security systems |
GB9115641D0 (en) * | 1991-07-19 | 1991-09-04 | Gore W L & Ass Uk | Protective sheath |
FR2781574B1 (en) * | 1998-07-24 | 2000-10-06 | Regis Julien | SECURE POWER SUPPLY SYSTEM AND METHOD, AND ELECTRIC CABLE IMPLEMENTED IN THIS SYSTEM |
ES2178596B1 (en) * | 2001-02-28 | 2004-10-01 | Juan Manuel Optral S.A. | COATING FOR PROTECTION AGAINST ANIMALS AND INSECTS OF AN CABLE OF ANY KIND. |
EP1553422B1 (en) | 2004-01-09 | 2010-03-10 | Stribel Production GmbH | Electric supply system including short-circuit and interrupt detection for vehicle power systems |
FR2947665A1 (en) * | 2009-07-01 | 2011-01-07 | Nexans | CABLE COMPRISING DETECTION MEANS FOR DETECTING THE PRESENCE OF AN ELECTRICALLY CONDUCTIVE BODY OUTSIDE THE CABLE |
CN103357137A (en) * | 2013-07-25 | 2013-10-23 | 成都陵川特种工业有限责任公司 | Apparatus for detecting fire extinguishing launcher |
CN111863334B (en) * | 2020-08-01 | 2021-08-27 | 江苏江扬特种电缆有限公司 | High-safety communication cable and using method thereof |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE381677A (en) * | 1930-08-08 | |||
JPS5146081B1 (en) * | 1970-12-28 | 1976-12-07 | ||
ZA816401B (en) * | 1980-09-25 | 1982-09-29 | Bicc Ltd | Electric cables |
EP0120479B1 (en) * | 1983-03-23 | 1990-08-29 | Nippon Steel Corporation | Structure fastening cable |
-
1987
- 1987-11-19 GB GB8727092A patent/GB2212644B/en not_active Expired - Fee Related
-
1988
- 1988-09-13 AU AU22166/88A patent/AU2216688A/en not_active Abandoned
- 1988-10-27 AT AT88310110T patent/ATE98045T1/en not_active IP Right Cessation
- 1988-10-27 DE DE3886011T patent/DE3886011T2/en not_active Expired - Fee Related
- 1988-10-27 EP EP88310110A patent/EP0317101B1/en not_active Expired - Lifetime
- 1988-11-18 JP JP63290369A patent/JPH01289017A/en active Pending
-
1993
- 1993-11-18 HK HK1266/93A patent/HK126693A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HK126693A (en) | 1993-11-26 |
AU2216688A (en) | 1989-05-25 |
GB2212644B (en) | 1991-10-09 |
EP0317101A2 (en) | 1989-05-24 |
EP0317101A3 (en) | 1989-09-27 |
JPH01289017A (en) | 1989-11-21 |
EP0317101B1 (en) | 1993-12-01 |
GB2212644A (en) | 1989-07-26 |
GB8727092D0 (en) | 1987-12-23 |
DE3886011T2 (en) | 1994-06-16 |
DE3886011D1 (en) | 1994-01-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE68927201D1 (en) | Security fence | |
ATE98045T1 (en) | SECURITY SYSTEM AND A SIGNAL CARRYING ELEMENT FOR IT. | |
ES2104915T3 (en) | SENSORS BASED ON NANO-STRUCTURED COMPOUND FILMS. | |
KR870006404A (en) | Pressure reactor | |
ES2085867T3 (en) | DETECTION DETECTION OF ELECTRICAL ANOMALIES. | |
DE3576231D1 (en) | INTRUSION DETECTOR SYSTEM WITH ANTI-MASKING DEVICE. | |
KR850008645A (en) | Polymer film with patterned conductivity and method for manufacturing the same | |
NO167103C (en) | DEVICE FOR MEASURING AN ELEMENT's TURN SPEED. | |
IT8122612A0 (en) | IMPROVED PROCEDURE AND PROCEDURE FOR TEXTILE WITH CONDUCTIVE PROPERTIES THEIR MANUFACTURING. | |
SG50883G (en) | Apparatus for detecting abnormal condition of wire rope | |
DE69103556D1 (en) | Temperature sensor element and probe with such an element. | |
DE3669919D1 (en) | OPTICAL MEASURING SENSOR ELEMENT AND DISPLACEMENT MEASURING DEVICE WITH SUCH AN ELEMENT. | |
FR2710753B1 (en) | Current sensor comprising a magnetoresistive tape and its production method. | |
DE69018506D1 (en) | Tape cassette with improved tape start detection. | |
FR2674623B1 (en) | CONTINUOUS AND NON-CONTACT MEASUREMENT DEVICE OF THE THICKNESS OF A THIN CONDUCTIVE LAYER ON AN INSULATING SUPPORT, OF THE FIBER OR TAPE TYPE, WHICH RUNS. | |
FR2352306A1 (en) | METHOD OF IDENTIFYING THE RESISTANCE OF AN ELECTRONIC TUBE FILAMENT, INDEPENDENT OF THE CONTACT RESISTANCE | |
DK0391580T3 (en) | Solvent-sensitive signal-carrying device | |
DE68922164T2 (en) | Tape cassette with optical tape end detection. | |
FR2406835A1 (en) | Length measuring machine contact sensing probe - has sensing circuit monitoring probe vibrations generated by transducer in contact element | |
JPS5679229A (en) | Leakage detector for conduit | |
NO884469D0 (en) | HEATABLE PIPE CONTROL OF ELECTRICALLY CONDUCTIVE POLYMER MATERIAL. | |
FR2484689B1 (en) | ELECTRICALLY HEATABLE ELEMENT FOR GAS DETECTION INSTRUMENTS, AND MANUFACTURING METHOD THEREOF | |
JPS56108641A (en) | Paper leaf detecting device | |
FR2619931B1 (en) | METHOD FOR MANUFACTURING A HEAT-RESISTANT MAGNETIC SENSOR, AND SENSING MEMBER THUS OBTAINED | |
JPS56110045A (en) | Temperature and humidity detecting element and detecting device using the same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |