Title:
LIGHTING EQUIPMENT
Document Type and Number:
Japanese Patent JPH053090
Kind Code:
A
Abstract:
PURPOSE: To reduce noises generated from lamps and the crossover wiring of lamp wires.
CONSTITUTION: The crossover wiring of lamp wires from the ballast of an equipment main body 1 to the other side equipment main body 2 is formed by three-core cables 7. Two lines of the three cables 7 are used as the lamp wires, and the remaining one line is used as the earth line. As a result, noises generated from the lamps and noises from the lamp wires 9 in the main bodies 1 and 2 can be reduced by earthing the cases 13 through an earth line 12. And outside the equipments, the earth line of the cables 7 is approached to the lamp wires along the full length, and thereby, the noises are absorbed to the earth, and the noise generation can be reduced.
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Inventors:
FUNAHASHI MASARU
Application Number:
JP15280691A
Publication Date:
January 08, 1993
Filing Date:
June 25, 1991
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
F21S4/00; F21S8/04; F21V23/00; H05B41/02; (IPC1-7): F21S3/02; F21V23/00; H05B41/02
Attorney, Agent or Firm:
Ishida Chochichi (2 outside)
Next Patent: LIGHTING DEVICE OF DISCHARGE LAMP