AIR5464A Metal Clad Fibers for Electrical Shielding and Harness Overbraid

Reaffirmed

12/05/2023

Features
Issuing Committee
Scope
Content
Over the past two and one-half decades several metal clad fibers and fabrics have been developed to provide aerospace vehicle designers with a conductive, lighter weight alternative to coated copper, coated stainless steel and steel wire used for cable and wire shielding and harness overbraids on electrical cables. Several of these candidates have been unable to provide the strength or thermal stability necessary for the aerospace environment. However, several polymer-based products have shown remarkable resistance to the rigorous environment of aerospace vehicles.
Concurrent with these fiber developments, there have been changes in the structures of aerospace vehicles involving greater use of nonmetallic outer surfaces. This has resulted in a need for increased shielding of electrical cables which adds substantial weight to the vehicle. Thus, a lighter weight shielding material has become more critical to meet the performance requirements of the vehicle.
This report covers the properties of metal clad aramid fibers (MCAF), metal clad polybenzobisoxazole (PBO) fibers (MCPF), and metal clad liquid crystal polymer (LCP) fibers (MCLF), with test results when these products are used as a shield or harness overbraid and a listing of some of the known applications in the aerospace field. The use of these fibers as an electrical conductor in high strength tethers and other aerospace applications are new developments that show the versatility of MCF not only for weight savings, but also for applications where high strength and long flex life are required.
Rationale
Content
Report updated to include new information on metal clad fibers. This change includes updates to specified technical information, addition of new information, and updates to typical applications.
AIR5464A has been reaffirmed to comply with the SAE Five-Year Review policy.
Meta TagsDetails
DOI
https://doi.org/10.4271/AIR5464A
Pages
13
Citation
SAE International Information Report, Metal Clad Fibers for Electrical Shielding and Harness Overbraid, SAE Standard AIR5464A, Reaffirmed December 2023, Revised August 2018, Issued June 2002, https://doi.org/10.4271/AIR5464A.
Additional Details
Publisher
Published
Dec 5, 2023
Product Code
AIR5464A
Content Type
Information Report
Status
Reaffirmed
Language
English

Revisions