IEEE/AIEE 803-1957

This Test Code will be limited to the consideration of test procedure applicable to insulation in aircraft equipment or to manufactured components or subassemblies of such equipment. The Code will also recommend test procedures for use in inspection of insulation in aircraft electric equipment to determine its airworthiness after service, repair and/or periods of storage. This Test Code is intended only as a guide to acceptable procedure. It is not intended to be used as a test specification for any specific equipment. The values of test voltages and other test conditions for specific equipment are always determined by the procurement specification for that particular equipment. In this connection attention is directed to paragraph 6 Application of High-Potential and Insulation- Resistance Tests.

It is the purpose of this test code to define acceptable methods of testing electrical insulation in aircraft electric equipment.

- Superseded. The extremes of aircraft environment and rigorous reliability requirements, make special consideration of aircraft insulation testing procedure desirable. Operating temperatures, in some classes of equipment now above 260C (SOOF), are moving upward. Ambient low temperatures below -6SC (-8SF) are currently specified. Vibration conditions producing accelerations in excess of 60 G's exist. Environmental conditions which may deteriorate electrical insulation are present through a range and to a degree uncommon in the environment of non-aircraft electric equipment. These conditions have created problems which commercial insulation test procedures do not always cover adequately