JPS546496A - Inspection unit for failure such as directional light - Google Patents

Inspection unit for failure such as directional light

Info

Publication number
JPS546496A
JPS546496A JP7146477A JP7146477A JPS546496A JP S546496 A JPS546496 A JP S546496A JP 7146477 A JP7146477 A JP 7146477A JP 7146477 A JP7146477 A JP 7146477A JP S546496 A JPS546496 A JP S546496A
Authority
JP
Japan
Prior art keywords
failure
inspection unit
directional light
power supply
normal power
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP7146477A
Other languages
Japanese (ja)
Inventor
Shunichi Morimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP7146477A priority Critical patent/JPS546496A/en
Publication of JPS546496A publication Critical patent/JPS546496A/en
Pending legal-status Critical Current

Links

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

PURPOSE: To surely grasp the condition of failure, by interrupting the normal power supply with an inspection switch, and by constituting that no fluorescent lamp is illuminated without inducing a voltage in high frequency transformers if the normal power supply is not supplied again.
COPYRIGHT: (C)1979,JPO&Japio
JP7146477A 1977-06-16 1977-06-16 Inspection unit for failure such as directional light Pending JPS546496A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7146477A JPS546496A (en) 1977-06-16 1977-06-16 Inspection unit for failure such as directional light

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7146477A JPS546496A (en) 1977-06-16 1977-06-16 Inspection unit for failure such as directional light

Publications (1)

Publication Number Publication Date
JPS546496A true JPS546496A (en) 1979-01-18

Family

ID=13461328

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7146477A Pending JPS546496A (en) 1977-06-16 1977-06-16 Inspection unit for failure such as directional light

Country Status (1)

Country Link
JP (1) JPS546496A (en)

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