# US 8,786,993 B2 · Cabling of an aircraft circuit breaker panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,786,993 B2 - Document ID: US8786993B2 - Status: Granted - Kind: B2 - Application number: 13/687,609 - Filed: 2012-11-28 - Published: 2013-05-30 - Granted: 2014-07-22 - Earliest claimed: 2011-11-30 - Assignees: Airbus Operations GmbH - Applicants: Airbus Operations SAS - Inventors: Christian Rabayrol - Web page: https://patentgrep.com/patent/US8786993B2 ## CPC - H02J 13/1321: {using a wired telecommunication network or a data transmission bus} - G01R 31/58: Testing of lines, cables or conductors (testing of electric windings G01R31/72) - H02J 4/00: Circuit arrangements for mains or distribution networks not specified as AC or DC; Circuit arrangements for mains or distribution networks combining AC and DC sections or sub-networks (arrangements using intermediate DC-AC-DC conversion H02J1/002; arrangements using high-voltage DC [HVDC] links H02J3/36) - H02J 13/10: characterised by displaying of information or by user interaction, e.g. supervisory control and data acquisition [SCADA] systems - H02J 13/333: the equipment forming part of substations - H02J 13/34: the equipment being switches, relays or circuit breakers - H02J 13/36: specially adapted for protection systems - H01H 2071/044: {Monitoring, detection or measuring systems to establish the end of life of the switching device, can also contain other on-line monitoring systems, e.g. for detecting mechanical failures} - H02H 3/04: with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned {(watching of pilot wires H02H1/0084; protection of protective arrangements H02H7/008; indication of the state of electronic switches H03K17/18)} - H02J 2105/32: {for aircrafts} - Y02E 60/00: Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation - Y04S 40/124: using wired telecommunication networks or data transmission busses - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) - H01H: ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES (contact cables H01B7/10; electrolytic self-interrupters H01G9/18; emergency protective circuit arrangements H02H; switching by electronic means without contact-making H03K17/00) - H02H: EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS (indicating or signalling undesired working conditions G01R, e.g. G01R31/00, G08B; locating faults along lines G01R31/08; emergency protective devices H01H) - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y04S: SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS ## Abstract A distribution panel aboard an aircraft includes sites intended for the installation of functional electrical circuit breakers of which at least one of the sites is not occupied by a functional circuit breaker. The functional circuit breakers are wired up to a monitoring system via monitoring cabling so as to monitor a state of the circuit breakers. The at least one site not occupied by a functional circuit breaker is occupied by a nonfunctional circuit breaker, termed a false circuit breaker. The false circuit breaker is able to deliver a state signal and is wired up to the monitoring system by the monitoring cabling in a manner identical to that of a functional circuit breaker. ## Claims ### Claim 1 Electrical distribution panel of an aircraft, comprising: a plurality of sites arranged in a matrix by row and column, with each site configured to receive a circuit breaker; a plurality of functional circuit breakers for protecting an electrical device; at least one false circuit breaker for delivering a constant state signal, and not associated with an electrical device, wherein the at least one false circuit breaker is at a site located in a row of the plurality of sites in which one site of the row contains a first functional circuit breaker and in a column of the plurality of sites in which one site of the column contains a second functional circuit breaker; power supply cabling for connecting to a power supply, wherein the power supply cabling is wired to each of the plurality of functional circuit breakers and not to the at least one false circuit breaker; and first and second monitoring cabling for connecting to a monitoring system, wherein the first monitoring cabling links together, in series, terminals of the at least one false circuit breaker and the first functional circuit breaker, and the second monitoring cabling links together, in series, terminals of the at least one false circuit breaker and the second functional circuit breaker, wherein the false circuit breaker comprises a selector for determining the state signal delivered by the false circuit breaker. ### Claim 2 (depends on 1) Distribution panel in accordance with claim 1, wherein the false circuit breaker comprises terminals for receiving the first and second monitoring cabling and arranged geometrically in a manner substantially identical to terminals of the at least one functional circuit breaker. ### Claim 3 (depends on 1) Distribution panel in accordance with claim 1, wherein the state signal delivered by the false circuit breaker corresponds to at least one state signal delivered by the functional circuit breaker. ### Claim 4 (depends on 3) Distribution panel in accordance with claim 3, wherein the state signal delivered by the false circuit breaker is enabled or disabled. ### Claim 5 (depends on 1) Distribution panel in accordance with claim 1, wherein the state signal delivered by the false circuit breaker corresponds to a signal different from that delivered by the functional circuit breaker. ### Claim 6 (depends on 1) Distribution panel in accordance with claim 1, wherein the selector is an on/off switch with two states, enabled or disabled. ### Claim 7 (depends on 1) Distribution panel in accordance with claim 1, wherein the first and second monitoring cables are identified at the false circuit breaker by a provisional identification number. ### Claim 8 (depends on 7) Distribution panel in accordance with claim 7, wherein the provisional identification number is defined by a row-wise and column-wise position of the false circuit breaker.