IT1236564B - Dispositivo di protezione da sovratensione o sovracorrenti di linee_elettriche e/o telefoniche. - Google Patents

Dispositivo di protezione da sovratensione o sovracorrenti di linee_elettriche e/o telefoniche.

Info

Publication number
IT1236564B
IT1236564B IT04687789A IT4687789A IT1236564B IT 1236564 B IT1236564 B IT 1236564B IT 04687789 A IT04687789 A IT 04687789A IT 4687789 A IT4687789 A IT 4687789A IT 1236564 B IT1236564 B IT 1236564B
Authority
IT
Italy
Prior art keywords
line
electrical
excess current
telephone lines
protecting against
Prior art date
Application number
IT04687789A
Other languages
English (en)
Other versions
IT8946877A0 (it
IT8946877A1 (it
Inventor
Cesare Lasagni
Original Assignee
Meta System Spa
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Meta System Spa filed Critical Meta System Spa
Priority to IT04687789A priority Critical patent/IT1236564B/it
Publication of IT8946877A0 publication Critical patent/IT8946877A0/it
Publication of IT8946877A1 publication Critical patent/IT8946877A1/it
Application granted granted Critical
Publication of IT1236564B publication Critical patent/IT1236564B/it

Links

Landscapes

  • Emergency Protection Circuit Devices (AREA)
IT04687789A 1989-10-24 1989-10-24 Dispositivo di protezione da sovratensione o sovracorrenti di linee_elettriche e/o telefoniche. IT1236564B (it)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT04687789A IT1236564B (it) 1989-10-24 1989-10-24 Dispositivo di protezione da sovratensione o sovracorrenti di linee_elettriche e/o telefoniche.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT04687789A IT1236564B (it) 1989-10-24 1989-10-24 Dispositivo di protezione da sovratensione o sovracorrenti di linee_elettriche e/o telefoniche.

Publications (3)

Publication Number Publication Date
IT8946877A0 IT8946877A0 (it) 1989-10-24
IT8946877A1 IT8946877A1 (it) 1991-04-24
IT1236564B true IT1236564B (it) 1993-03-11

Family

ID=11260093

Family Applications (1)

Application Number Title Priority Date Filing Date
IT04687789A IT1236564B (it) 1989-10-24 1989-10-24 Dispositivo di protezione da sovratensione o sovracorrenti di linee_elettriche e/o telefoniche.

Country Status (1)

Country Link
IT (1) IT1236564B (it)

Also Published As

Publication number Publication date
IT8946877A0 (it) 1989-10-24
IT8946877A1 (it) 1991-04-24

Similar Documents

Publication Publication Date Title
DE59101708D1 (de) Schutzschaltung und Schutzstecker in Telekommunikationsanlagen.
KR940025319U (ko) 디지탈 멀티메타의 입력 플러그 오삽입 방지 및 경보장치
FR2374793A1 (fr) Dispositif pour proteger des lignes telephoniques
SE8009142L (sv) Spenningsstyrt transientskydd
DE69412891D1 (de) Überspannungsschutzschaltung
EP0259178A3 (en) Circuit protection arrangement
DE69231494D1 (de) Vorrichtung für ESD-Schutz
DE59503396D1 (de) Verfahren zur Erzeugung eines Impedanzwertes und zu dessen Verarbeitung in einer Distanzschutzeinrichtung
EP0663712A3 (en) Fault current circuit breaker and protective system against earth fault currents.
IT1230289B (it) Dispositivo di protezione contro le sovratensioni per circuiti elettronici integrati, particolarmente per applicazioni in campo automobilistico.
EP0561149A3 (en) Arrangement for current supply of an electronic unit from a three phase network
KR970046469U (ko) 누전 차단기의 단락과 누전사고 구분 표시장치
CA2129826A1 (en) Method and Device for Preventing Overstabilization of Longitudinal Differential Protection in Case of Internal Fault
DE59103234D1 (de) Verpolungs- und Überspannungsschutz für Schaltungsanordnungen.
SE8107348L (sv) Skyddsstromkrets
ITTO930478A0 (it) Dispositivo di protezione a ripristino automatico contro cortocircuitidell'impianto elettrico di bordo degli autoveicoli.
EP0631145A3 (de) Verfahren und Vorrichtung zur Strommessung in Brückenschaltungen.
SE8400555D0 (sv) Transientskyddsenhet
FI950148L (fi) Laite syöksyvirtojen määrittämiseksi ukkosjohtimista tai vastaavista
NO944573D0 (no) Fremgangsmåte for funksjonspröving av stikkbare overspenningsavledere for elektriske anlegg
JPS5674894A (en) Sense amplifier
IT1244074B (it) Dispositivo di protezione di circuiti elettrici e/o elettronici di telefoni atto a limitare la potenza dissipata in essi.
MY105433A (en) A circuit protection device.
ATE131319T1 (de) Schutzeinrichtung für schutzmassnahmen gegen fehlerströme.
EP0636893A3 (en) Visual signaling device for leakage currents from an electrical system to earth.

Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19971029