CIRCUIT SEPARATION UNIT AND RADIO BASE STATION UNIT

Japanese Patent JP2014135832

A

PROBLEM TO BE SOLVED: To prevent a control circuit from failing in the event of lightning at a higher probability.SOLUTION: A circuit separation unit for selectively connecting and disconnecting a control circuit in a control device to and from a distribution line includes: a lightning detection device provided separately from the control device to detect lightning; an optical fiber for connecting the control circuit and the lightning detection device; a circuit separation device built in the control device, having a first switch section for connecting the control circuit to the distribution line and a second switch section for connecting the control circuit to a ground, and capable of selectively connecting and disconnecting each path of wiring by means of the first switch section and the second switch section; and a separation control section integrated with the control circuit to control the operation of the circuit separation device. When acquiring information that the lightning detection device has detected lightning via the optical fiber, the separation control section disconnects the first switch section and the second switch section in the circuit separation device to electrically separate the control circuit from the distribution line and the ground.

OTSUKA TAKASHI
NAKANURA KEIJI
AMAZAKI FUMIAKI
TAMURA KOICHI
ISHITOBI YASUSHI
SHINDO TOSHIMASA
YAMAGUCHI AKIRA
TSUNOSHIMA KOJI

JP2013002140A

July 24, 2014

January 09, 2013

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CHUGOKU ELECTRIC POWER
ENERGIA COMMUNICATIONS INC

H02H3/22; G01W1/16; H01H9/54; H02H5/00

JP2008118752A	2008-05-22
JPH07298476A	1995-11-10
JP2001066378A	2001-03-16

US7432787B2

2008-10-07

Hiroaki Sakai

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