Multi-lamp fluorescent lighting fixture apparatus and wiring method
AssigneeGeneral Electric Company
InventorEdward John Thomas
Life of this patent
Estimating the term…
Abstract
A fluorescent lamp fixture apparatus (100) and wiring method (200) are described in which a ballast (B) is located near the fixture center (110c) and high frequency high potential wires (HFW1-HFW4) extending from the ballast are directly connected to inner lampholders (LH1a, LH2a, LH3a, LH4a), with low frequency low potential wiring runs (E1LFRUN, E2LFRUN) extending toward the fixture ends (FE1, FE2) for connection to outer lampholders (LH1b-LH4b) to mitigate capacitive and inductive coupling effects in the fixture.
Claims19
A fluorescent amp fixture apparatus for one or more pairs of fluorescent tube lamps, comprising:
- a fixture structure having first and second longitudinal fixture ends and a fixture center midway between the fixture ends;
- at least two inner lampholders proximate the fixture center;
- at least two outer lampholders, including a first set of at least two outer lampholders proximate the first fixture end, and a second set of at least two outer lampholders proximate the second fixture end;
- and
- a ballast, comprising:
- a ballast housing with a first ballast end proximate the fixture center and a second ballast end, and
- a plurality of high frequency high potential wires extending from the first ballast end, the high frequency high potential wires connected directly to the inner lampholders.
The fluorescent lamp fixture apparatus of claim I, where the high frequency high potential wires are connected to lampholders for parallel connection of the fluorescent tube lamps.
A method of wiring a fluorescent lamp fixture apparatus to drive one or more pairs of fluorescent tube lamps, the method comprising:
- locating a first end of a ballast proximate a center of a fixture having first and second longitudinal fixture ends;
- connecting a plurality of high frequency high potential wires extending from the first ballast end directly to inner lampholders proximate the fixture center;
- and
- connecting low frequency low potential wires extending from the ballast housing to outer lampholders proximate the fixture ends.
Dependencies are inferred from the claim text.