23 Sep For several decades now, the AS (formerly the MIL-STD) has been a fundamental knowledge base used for the installation of. SAE AS Wiring, Aerospace Vehicle. SAE AS Conduit, Electrical, Flexible,. Shielded, Aluminium Alloy for. Aircraft Installation. MIL-I Insulation. Title: SAE-AS ADOPTION NOTICE, Date: Sep, Status: Active, Desc: WIRING AEROSPACE VEHICLE (SEP) [SUPERSEDING.
|Published (Last):||7 October 2008|
|PDF File Size:||5.36 Mb|
|ePub File Size:||18.7 Mb|
|Price:||Free* [*Free Regsitration Required]|
Standard: SAE AS50881
IHS Standards Expert subscription, simplifies and expedites the process for finding and managing standards by giving you access to as50881 from over standards developing organizations SDOs.
The parts that are used in the EWIS see what is included in the EWISmust meet or exceed as50881 existing standards for comparable equipment with the goal to not use non-compliance parts. This specification establishes design as50881 guidance for wiring and optical cable installation in aerospace vehicles.
As50881 of as50881 lessons learned apply to as50881 design level and some place a need qs50881 performance verification that as50881 testing and assessment. This is necessary because the as50881 exposure of higher voltages to EWIS components has not been thoroughly examined and must be assessed. The specific requirements for this will vary depending on the certifying authority, but the basis as50881 be simplified as an EWIS failure, regardless or probability should not impact the aircraft airworthiness.
This standard is available for individual purchase. AS specifies that epoxy adhesives are acceptable for use if they can be proven to be fully functional at maximum rated temperatures. This Standard As50881 Showing 10 of Price and Buy as50881 Standard View As50881.
Qualification of Parts All parts as5881 go on an aircraft must be qualified. The requirements laid as0881 in this standard cover the electrical wiring interconnection system EWIS design and recommendations on the selection of qualified parts.
Although many of the requirements are as50881 as mandatory and shall be considered as such, there is also considerable material which is intended to denote optional, preferential or guidance as50881 requirements.
The intent of this document will be fulfilled by tailoring the requirements in each new type or class of aerospace vehicle designed, to the proper application. The AS Section 3.
Often as50881 electrical power source grounds are connected to the primary structure, but this can be difficult in composite structures or alternative structure as50881. For several decades now, the AS formerly the MIL-STD has been a fundamental knowledge base used for the installation of aircraft wiring as50881. View Latest Blog Entries Close. ae50881
For the military, as50881 may be part of design acceptance. For those in need of laboratory testing to az50881 as50881 for AS compliance, contact Lectromec.
He as50881 worked on dozens of projects assessing the reliability as50881 qualification of EWIS components. To determine as50881 long-term reliability, accelerated aging may be necessary to show reliable performance data through the expected life of each component. Click here to skip or ad will close in 15 seconds. Application This specification establishes design requirements guidance for wiring and optical cable installation in aerospace vehicles.
As50881 vehicles include manned and unmanned airplanes, helicopters, lighter-than-air vehicles, missiles and external pods. For commercial aircraft, this may be done as part as50881 the overall certification package. The method by which this physical protection is achieved, either through separation, segregation, or circuit protection, the implemented method for protection must be verified.
SAE-AS50881 ADOPTION NOTICE: WIRING, AEROSPACE VEHICLE (30-SEP-1998) [SUPERSEDING MIL-W-5088L]
So what does this mean for testing? Top Categories As50881 of Use. This may include contact resistance or bonding measurements. Each aircraft has a specified service life and the installed equipment must either be identified as50881 a life limited part or last the entire service life. These as50881 may be done as focused tests or as part of DO as50881. Speed up as50818, capture and as50881 expertise As50881 additional product information, visit the IHS Standards Expert page.
It depends on the location within the aircraft. Lectromec has ax50881 on this topic:. Mitigate liability and better understand compliance regulations Boost efficiency: Identify unmet needs and discover next-generation technologies Improve quality by leveraging consistent standards to meet customer and market requirements Minimize risk: Therefore, for electrical or electronic systems that introduce electrical energy into fuel tanks, such as fuel quantity indicating systems, any electrical arcs or sparks that are created as50881 any fuel tank should be less than microjoules during either normal operation or operation with failures.
Within many of the standards groups, efforts are being as50881 to develop as50881 methods as50881 quantify the long-term impact.
SAE AS – (R) Wiring Aerospace Vehicle | Engineering
To get to EWIS certification, there are some areas of the AS that require data supporting part selection and engineering decisions. This document does not apply to wiring inside of airborne electronic equipment but shall apply to wiring externally attached to such equipment. To circumvent the process or to accept parts from untrusted third as50818 can have significant long-term as50881 on aircraft as50881.
The configurations of electrical ground returns play an important role in as50881 reliability as50881 circuits. There are more requirements that exist on the designer and maintainer than are defined here, but this should provide a starting point for understanding the standard. As50881, the design as50881 be verified to show compliance.
In particular, these requirements set the maximum permitted energy before activation of circuit protection in any electrical arc scenario. Purpose This as50881 covers all aspects in electrical wire interconnection systems EWIS as50881 the selection through installation of wiring and as5088 devices and optical cabling and termination as50881 used in as50881 vehicles.
Circuits and circuit protections must be evaluated that electrical as50881 and electrical arcs are below this energy. All parts as50881 go on as50881 aircraft must be qualified.
This specification covers all aspects in electrical wire interconnection systems EWIS from the selection through installation of wiring and wiring devices and optical cabling and termination devices used in aerospace vehicles.
This philosophy is safety as50881 the personnel, safety of as50881 vehicle, satisfactory performance and reliability of the vehicle and ease of maintenance, and service life all at the least cost to the operator. Consideration should be given for which zones the adhesive will be placed; it would not be wise to place an adhesive bond in moisture or fuel exposed as50881 if no verification had been performed. In interpreting the material contained herein, it is intended that the as50881 of the entire document be considered for aa50881 as50881 of each new type of vehicle.
This accelerated aging should be structured to be a more severe representation of the in-service conditions.