Aviation Mechanic - General, Airframe, and Powerplant › II. Airframe › Task K. Aircraft Electrical Systems

AM.II.K.K9

Knowledge

Aircraft wiring shielding.

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - Airframe p. 9-67
Chapter 9: Aircraft Electrical System › Wire Types › Wire Shielding
Resistance to heat is of primary importance in the selection of wire for aircraft use, as it is the basic factor in wire rating. Where wire may be required to operate at higher temperatures due either to high ambient temperatures ... highly sensitive electronic devices found on modern aircraft, it has become very important to ensure proper shielding for many electric circuits. Shielding is the process of applying a metallic covering to wiring and equipment to eliminate electromagnetic interference…
Aviation Maintenance Technician Handbook - Airframe p. 9-86
Chapter 9: Aircraft Electrical System › Wire Installation & Routing › Wire Shielding
The jumper should not interfere with the operation of movable aircraft elements…