ASTM F2799 - 14

    Standard Practice for Maintenance of Aircraft Electrical Wiring Systems

    Active Standard ASTM F2799 | Developed by Subcommittee: F39.02

    Book of Standards Volume: 15.11


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    Significance and Use

    4.1 This practice is intended to be used as a standard wiring practice for aircraft when not contrary to standards published by the aircraft original equipment manufacturer (OEM) or regulations. This practice is intended to be used for maintenance and preventive maintenance of electrical wiring interconnection systems (EWIS).

    4.2 This practice is not intended to supersede or replace any government specification or specific manufacturer’s instructions regarding EWIS maintenance or repair.

    1. Scope

    1.1 Definition—This practice defines acceptable practices and processes for the maintenance, preventative maintenance, and repair of electric systems in general aviation aircraft. This practice does not change or create any additional regulatory requirements nor does it authorize changes in or permit deviations from existing regulatory requirements.

    1.2 Applicability—The guidance provided in this practice is directed to air carriers, air operators, maintenance providers, repair stations, and anyone performing maintenance or repairs.

    1.3 Protections and Warnings—This practice provides guidance to minimize contamination and accidental damage to electrical wiring interconnection systems (EWIS) while working on aircraft.

    1.4 “Protect and Clean As You Go” Philosophy—This philosophy is applied to aircraft wiring through inclusion in operators’ maintenance and training programs. This philosophy stresses the importance of protective measures when working on or around wire bundles and connectors. It stresses how important it is to protect EWIS during structural repairs, (STC) installations, or other alterations by ensuring that metal shavings, debris, and contamination resulting from such work are removed.

    1.5 Units—The values given in inch-pound units are to be regarded as the standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    Note 1When SI units are required, refer to Annex 5 of ICAO.

    1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    F2490 Guide for Aircraft Electrical Load and Power Source Capacity Analysis

    F2639 Practice for Design, Alteration, and Certification of Airplane Electrical Wiring Systems

    JEDEC Standard

    EIA471 Symbol and Label for Electrostatic Sensitive Devices Available from the JEDEC Solid State Technology Association, 3103 N. 10th St., Suite 240-S, Arlington, VA 22201.

    NEMA Standard

    WC27500 Standards for Aerospace and Industrial Electric Cable Available from National Electrical Manufacturers Association (NEMA), 1300 N. 17th St., Suite 1752, Rosslyn, VA 22209, http://www.nema.org.

    RTCA Standard

    DO-160C Environmental Conditions and Test Procedures for Airborne Equipment Available from RTCA, Inc., 1828 L St., NW, Suite 805, Washington, DC 20036.

    SAE Standards

    ARP1870 Aerospace Systems Electrical Bonding and Grounding for Electromagnetic Compatibility and Safety

    ARP1928 Torque Recommendations for Attaching Electrical Wiring Devices to Terminal Boards or Blocks, Studs, Posts, Etc.

    AS21919 Clamp, Loop Type, Cushioned Support

    AS4372 Performance Requirements for Wire, Electric, Insulated Copper or Copper Alloy Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http://www.sae.org.

    AS4373 Test Methods for Insulated Electric Wire

    AS50881 Wiring Aerospace Vehicle

    Federal Standards

    AdvisoryCircular20-5 Protection of Aircraft Fuel Systems against Fuel Vapor Ignition due to Lightning

    MIL-C-22520/2C Crimping Tools, Terminal, Hand, Wire Termination

    MIL-S-8802 Sealing Compound, Temperature-Resistant, Integral Fuel Tanks and Fuel Cell Cavities, High Adhesion

    MIL-T-43435 Tape, Lacing and Tying

    MIL-T-7928 Terminal, Lug Splices, Conductors, Crimp Style, Copper

    MS17821 Specification for Cable and Marker Color Code Numbers

    MS17822 Specification for Cable and Marker Color Code Numbers

    NAVAIR01-1A-505 Installation Practices--Aircraft Electric and Electronic Wiring


    ICS Code

    ICS Number Code 49.060 (Aerospace electric equipment and systems)

    UNSPSC Code

    UNSPSC Code 25202000(Aircraft power systems)


    Referencing This Standard

    DOI: 10.1520/F2799-14

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM F2799-14, Standard Practice for Maintenance of Aircraft Electrical Wiring Systems, ASTM International, West Conshohocken, PA, 2014, www.astm.org

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