Lightning protection for spaced electrical bundles
AssigneeThe Boeing Company
InventorsPhillip S. Trifeletti, John Kemp Erdelyan, Michael C. Dosch
Life of this patent
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Abstract
A shielded power feeder system may include at least one unshielded power feeder conductor, and at least one grounded guard wire conductor positioned adjacent to the at least one unshielded power feeder conductor, the at least one unshielded power feeder conductor and the at least one grounded guard wire forming a bundle.
Claims19
A power feeder system shielded for protection from electromagnetic interference, the system comprising:
- a bundle, the bundle including
- a plurality of unshielded power feeder conductors;
- and
- a plurality of grounded guard wire conductors, each of the plurality of grounded guard wire conductors being grounded at both ends, ones of the plurality of the grounded guard wire conductors spaced individually about the bundle and positioned adjacent and on both sides of each one of the plurality of the unshielded power feeder conductors, wherein each one of the plurality of the unshielded power feeder conductors is adjacent two different ones of the plurality of grounded guard wire conductors, so that during electromagnetic interference, the plurality of grounded guard wire conductors set up differential mode current paths that generate opposite electromagnetic fields that cancel a field from the electromagnetic interference.
An aircraft, comprising:
- a power feeder system shielded for protection from electromagnetic interference, the system forming a bundle, the bundle including
- a plurality of unshielded power feeder conductors;
- and
- a plurality of grounded guard wire conductors, each of the plurality of grounded guard wire conductors being grounded at both ends, ones of the plurality of grounded guard wire conductors positioned on both sides of each one of the plurality of unshielded power feeder conductors, wherein each one of the plurality of the unshielded power feeder conductors is adjacent two different ones of the plurality of grounded guard wire conductors, so that during the electromagnetic interference, the plurality of grounded guard wire conductors set up differential mode current paths that generate opposite electromagnetic fields that cancel a field from the electromagnetic interference.
A method for forming a power feeder system shielded for protection from electromagnetic interference, the shielded power feeder conductor forming a bundle, the method comprising:
- positioning a plurality of unshielded power feeder conductors in a spaced-apart relation;
- positioning a plurality of grounded guard wire conductors in a spaced-apart relation, and grounding each of the plurality of grounded guard wire conductors at both ends;
- positioning ones of the plurality of grounded guard wire conductors adjacent each of the plurality of unshielded power feeder conductors in a spaced-apart relation about the periphery of the bundle and on both sides of each of the plurality of unshielded power feeder conductors, wherein each one of the plurality of the unshielded power feeder conductors is adjacent two different ones of the plurality of grounded guard wire conductors, so that during the electromagnetic interference, the plurality of grounded guard wire conductors set up differential mode current paths that generate opposite electromagnetic fields that cancel a field from the electromagnetic interference;
- and
- forming the bundle of the plurality of power feeder conductors and the plurality of grounded guard wire conductors by fixing the spacing between the plurality of power feeder conductors and the plurality of grounded guard wire conductors.
Dependencies are inferred from the claim text.