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Aircraft Electrical Installations

AE-8A Elec Wiring and Fiber Optic Interconnect Sys Install
  • Aerospace Standard
  • ARP4404C
  • Current
Published 2019-09-19 by SAE International in United States
It is the purpose of this document to present design recommendations that will provide a basis for satisfactory and safe electrical installations in transport aircraft. This document is not intended to be a complete electrical installation design handbook. However, the requirements for safety extend so thoroughly throughout the electric systems that few areas of the installation are untouched by the document. It is recognized that individual circumstances may alter the details of any design. It is, therefore, important that this document not be considered mandatory but be used as a guide to good electrical application and installation design. Transport aircraft electric systems have rapidly increased in importance over a number of years until they are now used for many functions necessary to the successful operation of the aircraft. An ever increasing number of these functions are critical to the safety of the aircraft and its occupants. The greatly increased power available in electric systems is another factor in aircraft safety. These considerations make it essential that aircraft electrical design practices be carefully considered from the…
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Inductive Power Transfer for Spaceflight Systems

  • Magazine Article
  • TBMG-34913
Published 2019-08-01 by Tech Briefs Media Group in United States

NASA Goddard Space Flight Center has developed technology that uses inductive power transfer (IPT) for wireless power interfaces between spaceflight elements (such as the payload, vehicle, and pad). Current spaceflight systems require traditional hardwire connections for power interfaces. This introduces risk of failure due to such factors as bent pins and contact contamination, as well as other disadvantages.

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Communication Transceivers Qualification Requirements - LIN

Vehicle Architecture For Data Communications Standards
  • Ground Vehicle Standard
  • J2962/1_201907
  • Current
Published 2019-07-18 by SAE International in United States
This document covers the requirements for transceiver qualification. Requirements stated in this document will provide a minimum standard level of performance for the LIN transceiver block in the IC to which all compatible transceivers shall be designed. No other features in the IC are tested or qualified as part of this recommended practice. This will assure robust serial data communication among all connected devices regardless of supplier. The goal of SAE J2962-1 is to commonize approval processes of LIN transceivers across OEMs. The intended audience includes, but is not limited to, LIN transceiver suppliers, component release engineers, and vehicle system engineers.
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Communication Transceivers Qualification Requirements - CAN

Vehicle Architecture For Data Communications Standards
  • Ground Vehicle Standard
  • J2962/2_201907
  • Current
Published 2019-07-18 by SAE International in United States
This document covers the requirements for transceiver qualification. Requirements stated in this document will provide a minimum standard level of performance for the CAN transceiver in the IC to which all compatible transceivers shall be designed. No other features in the IC are tested or qualified as part of this recommended practice. This will assure robust serial data communication among all connected devices, regardless of supplier. The goal of SAE J2962-2 is to commonize approval processes of CAN transceivers across OEMs. The intended audience includes, but is not limited to, CAN transceiver suppliers, component release engineers, and vehicle system engineers.
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Synchros, General Specification for

AE-7A Generators and Controls Motors and Magnetic Devices
  • Aerospace Standard
  • AS20708C
  • Current
Published 2019-06-05 by SAE International in United States
This specification relates to Synchros, 60 and 400 Hz. It is not complete in itself, but shall be used in conjunction with MIL-DTL-81963, in which the latter shall be recognized as forming an inherent part of this specification. This standard requires a Qualified Products List (see 6.4).
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Electrical Charging Systems for Off-Road Work Machines

CTTC C2, Electrical Components and Systems
  • Ground Vehicle Standard
  • J180_201905
  • Current
Published 2019-05-10 by SAE International in United States
This SAE standard describes alternator physical, performance, and application requirements for heavy-duty electrical charging systems for off-road work machines, including those defined in SAE J1116.
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Ultrasonic Inspection Thin Wall Metal Tubing

AMS K Non Destructive Methods and Processes Committee
  • Aerospace Material Specification
  • AMS2634B
  • Current
Published 2019-04-24 by SAE International in United States
This specification covers procedures for ultrasonic inspection of thin wall metal tubing of titanium, titanium alloy, and corrosion and heat resistant steels and alloys having nominal OD over 0.1875 inch (4.762 mm) with OD to wall thickness ratio of 8 or greater and wall thickness variation not exceeding ±10% of nominal.
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Information on Electric Brakes

A-5A Wheels, Brakes and Skid Controls Committee
  • Aerospace Standard
  • AIR5937
  • Current
Published 2019-02-15 by SAE International in United States
This SAE Aerospace Information Report (AIR) describes the design, operation, and attributes of electrical braking systems for both military and commercial aircraft. At this time, the document focuses only on brakes utilizing electromechanical actuators (EMAs), as that is the present state of the art. As such, the discussions herein assume that EMAs can simply replace the hydraulic actuation portion of typical brake system leaving things such as the wheel and heat sink unchanged. Furthermore, the document provides detail information from the perspective of brake system design and operation. The document also addresses failure modes, certification issues, and past development efforts. Details on the design and control of electric motors, gear train design, ball or roller screw selection are available in the reference documents and elsewhere, but are outside the scope of this document. Other all-electric technologies such as piezoelectric actuation or more exotic methods of applying drag to a rotating wheel may be included at a later time. Important: Electric braking systems for aircraft are at the early stages of production implementation. There are also…
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Power Quality Requirements for Plug-In Electric Vehicle Chargers

Hybrid - EV Committee
  • Ground Vehicle Standard
  • J2894/1_201901
  • Current
Published 2019-01-23 by SAE International in United States
The intent of this document is to develop a recommended practice for PEV chargers, whether on-board or off-board the vehicle, that will enable equipment manufacturers, vehicle manufacturers, electric utilities, and others to make reasonable design decisions regarding power quality. The three main purposes are as follows: 1 To identify those parameters of PEV battery charger that must be controlled in order to preserve the quality of the AC service. 2 To identify those characteristics of the AC service that may significantly impact the performance of the charger. 3 To identify values for power quality, susceptibility, and power control parameters which are based on current U.S. and international standards. These values should be technically feasible and cost effective to implement into PEV battery chargers. SAE J2894/2 will describe the test methods for the parameters/requirements in this document.
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Ground Equipment - 400 Hertz Ground Power Performance Requirements

AGE-3 Aircraft Ground Support Equipment Committee
  • Aerospace Standard
  • ARP5015B
  • Current
Published 2018-12-17 by SAE International in United States
This SAE aerospace recommended practice (ARP) covers the requirements for external ground power equipment supplying 115/200 V, three-phase, 400 HZ output power measured at the aircraft receptacle. All forms of 400 Hz ground power including mobile and fixed systems are addressed by this document.
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