TUNNEL DISASTER PREVENTING SYSTEM
PROBLEM TO BE SOLVED: To provide a tunnel disaster preventing system by which the number of power lines to be connected to automatic water spraying valves is reduced and also the number of disconnection and short-circuit monitoring circuits is reduced. SOLUTION: One of the two power lines to be resp...
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| creator | ISHIDA NAGATOSHI |
| description | PROBLEM TO BE SOLVED: To provide a tunnel disaster preventing system by which the number of power lines to be connected to automatic water spraying valves is reduced and also the number of disconnection and short-circuit monitoring circuits is reduced. SOLUTION: One of the two power lines to be respectively connected to a plurality of automatic water spraying valves 41 -4n is mutually and commonly connected with the other so as to be adopted as one common power line 21c, the whole other power lines 221 -22n are made to be optionally selected and a driving power source for driving the automatic water spraying valves is supplied to the common power line 21c and the optionally selected power line with open/close relay 12 and a starting relay 11. The common power line 21c and the optionally selected power line are connected to one disconnection and short-circuit monitoring circuit 10 so as to monitor the disconnection and the short-circuit of the selected power line. |
| format | Patent |
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SOLUTION: One of the two power lines to be respectively connected to a plurality of automatic water spraying valves 41 -4n is mutually and commonly connected with the other so as to be adopted as one common power line 21c, the whole other power lines 221 -22n are made to be optionally selected and a driving power source for driving the automatic water spraying valves is supplied to the common power line 21c and the optionally selected power line with open/close relay 12 and a starting relay 11. The common power line 21c and the optionally selected power line are connected to one disconnection and short-circuit monitoring circuit 10 so as to monitor the disconnection and the short-circuit of the selected power line.</description><edition>6</edition><language>eng</language><subject>ALARM SYSTEMS ; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; ELECTRICITY ; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS ; FIRE-FIGHTING ; GENERATION ; HUMAN NECESSITIES ; LIFE-SAVING ; ORDER TELEGRAPHS ; PHYSICS ; SIGNALLING ; SIGNALLING OR CALLING SYSTEMS</subject><creationdate>1998</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19980804&DB=EPODOC&CC=JP&NR=H10201873A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19980804&DB=EPODOC&CC=JP&NR=H10201873A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ISHIDA NAGATOSHI</creatorcontrib><title>TUNNEL DISASTER PREVENTING SYSTEM</title><description>PROBLEM TO BE SOLVED: To provide a tunnel disaster preventing system by which the number of power lines to be connected to automatic water spraying valves is reduced and also the number of disconnection and short-circuit monitoring circuits is reduced. SOLUTION: One of the two power lines to be respectively connected to a plurality of automatic water spraying valves 41 -4n is mutually and commonly connected with the other so as to be adopted as one common power line 21c, the whole other power lines 221 -22n are made to be optionally selected and a driving power source for driving the automatic water spraying valves is supplied to the common power line 21c and the optionally selected power line with open/close relay 12 and a starting relay 11. The common power line 21c and the optionally selected power line are connected to one disconnection and short-circuit monitoring circuit 10 so as to monitor the disconnection and the short-circuit of the selected power line.</description><subject>ALARM SYSTEMS</subject><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>ELECTRICITY</subject><subject>EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS</subject><subject>FIRE-FIGHTING</subject><subject>GENERATION</subject><subject>HUMAN NECESSITIES</subject><subject>LIFE-SAVING</subject><subject>ORDER TELEGRAPHS</subject><subject>PHYSICS</subject><subject>SIGNALLING</subject><subject>SIGNALLING OR CALLING SYSTEMS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1998</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFAMCfXzc_VRcPEMdgwOcQ1SCAhyDXP1C_H0c1cIjgSK-PIwsKYl5hSn8kJpbgZFN9cQZw_d1IL8-NTigsTk1LzUknivAA9DAyMDQwtzY0djYtQAAEBRIrI</recordid><startdate>19980804</startdate><enddate>19980804</enddate><creator>ISHIDA NAGATOSHI</creator><scope>EVB</scope></search><sort><creationdate>19980804</creationdate><title>TUNNEL DISASTER PREVENTING SYSTEM</title><author>ISHIDA NAGATOSHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JPH10201873A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1998</creationdate><topic>ALARM SYSTEMS</topic><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>ELECTRICITY</topic><topic>EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS</topic><topic>FIRE-FIGHTING</topic><topic>GENERATION</topic><topic>HUMAN NECESSITIES</topic><topic>LIFE-SAVING</topic><topic>ORDER TELEGRAPHS</topic><topic>PHYSICS</topic><topic>SIGNALLING</topic><topic>SIGNALLING OR CALLING SYSTEMS</topic><toplevel>online_resources</toplevel><creatorcontrib>ISHIDA NAGATOSHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ISHIDA NAGATOSHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>TUNNEL DISASTER PREVENTING SYSTEM</title><date>1998-08-04</date><risdate>1998</risdate><abstract>PROBLEM TO BE SOLVED: To provide a tunnel disaster preventing system by which the number of power lines to be connected to automatic water spraying valves is reduced and also the number of disconnection and short-circuit monitoring circuits is reduced. SOLUTION: One of the two power lines to be respectively connected to a plurality of automatic water spraying valves 41 -4n is mutually and commonly connected with the other so as to be adopted as one common power line 21c, the whole other power lines 221 -22n are made to be optionally selected and a driving power source for driving the automatic water spraying valves is supplied to the common power line 21c and the optionally selected power line with open/close relay 12 and a starting relay 11. The common power line 21c and the optionally selected power line are connected to one disconnection and short-circuit monitoring circuit 10 so as to monitor the disconnection and the short-circuit of the selected power line.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ALARM SYSTEMS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS FIRE-FIGHTING GENERATION HUMAN NECESSITIES LIFE-SAVING ORDER TELEGRAPHS PHYSICS SIGNALLING SIGNALLING OR CALLING SYSTEMS |
| title | TUNNEL DISASTER PREVENTING SYSTEM |
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