IEEE Std 135-1969 PDF

Full title and description

IEEE Recommended Practice for Aircraft, Missile, and Space Equipment Electrical Insulation Tests — IEEE Std 135-1969. This recommended practice defines test procedures and inspection methods applicable to electrical insulation used in flight and support equipment, and to manufactured components or subassemblies, with the objective of determining insulation adequacy and flightworthiness after service, repair, or storage.

Abstract

IEEE Std 135-1969 (published April 15, 1969) provides recommended procedures for electrical insulation testing for aerospace applications (aircraft, missile, and space equipment). The document focuses on selection of appropriate test methods and inspection criteria to evaluate insulation condition and to help determine continued airworthiness of equipment after manufacturing, repair, or storage. The standard is currently listed as inactive/withdrawn.

General information

• Status: Inactive — Withdrawn (withdrawn 6 December 1990).
• Publication date: 15 April 1969.
• Publisher: IEEE (Institute of Electrical and Electronics Engineers).
• ICS / categories: Aerospace electric equipment and systems (aerospace electrical equipment & systems classification).
• Edition / version: First edition (1969).
• Number of pages: Listed by commercial standards distributors as 11 pages (commercial listings).

Scope

This Recommended Practice is limited to test procedures applicable to insulation in flight and support equipment and to manufactured components or subassemblies of such equipment. It also recommends inspection procedures to determine flightworthiness of equipment insulation after service, repair, and periods of storage. The guidance is intended specifically for aerospace environments and the operational considerations of aircraft, missile, and space systems.

Key topics and requirements

• Recommended test procedures for electrical insulation used in aerospace equipment (selection and application of tests).
• Inspection criteria to determine flightworthiness after service, repair, or storage.
• Application focus on flight and support equipment as well as components and subassemblies intended for aerospace use.
• Guidance intended to help maintenance, manufacturing, and test organizations establish consistent insulation-test practices for aerospace hardware.

Typical use and users

Engineers and technicians in aerospace manufacturing, maintenance and repair organizations, test laboratories, quality assurance teams, and regulatory or certification bodies use this type of recommended practice as a historical reference for insulation test methods and inspection approaches specific to aircraft, missile, and space hardware. Although withdrawn, it may still be consulted for legacy equipment and historical test method context.

Related standards

IEEE Std 135-1969 sits within the family of IEEE aerospace/electrical equipment documents and is associated conceptually with other aerospace electrical standards and guides (examples include IEEE standards and guides addressing aircraft electric systems, voltage/frequency ratings, and related test practices). For organization and cataloguing it appears under aerospace electrical equipment groupings in IEEE listings.

Keywords

aircraft; missile; space; electrical insulation; insulation tests; aerospace equipment; flightworthiness; inspection; test procedures.

FAQ

Q: What is this standard?

A: IEEE Std 135-1969 is a recommended practice titled "IEEE Recommended Practice for Aircraft, Missile, and Space Equipment Electrical Insulation Tests" that provides guidance on testing and inspection of electrical insulation used in aerospace hardware.

Q: What does it cover?

A: It covers recommended test procedures and inspection methods applicable to insulation in flight and support equipment and to manufactured components or subassemblies, including guidance for assessing insulation condition after service, repair, or storage.

Q: Who typically uses it?

A: Intended users include aerospace electrical engineers, maintenance and repair personnel, test laboratories, quality assurance staff, and others responsible for validating insulation integrity on aircraft, missile, and space equipment.

Q: Is it current or superseded?

A: It is listed as inactive/withdrawn; the standard was published 15 April 1969 and formally withdrawn on 6 December 1990. Users should not treat it as an active current standard and should check for more recent standards or industry guidance for current practices.

Q: Is it part of a series?

A: It is part of IEEE's body of aerospace and electrical equipment standards and is catalogued alongside other aerospace electrical standards (other IEEE standards and guides addressing aircraft electrical systems and equipment ratings appear in the same subject grouping).

Q: What are the key keywords?

A: Key keywords are aircraft, missile, space, insulation, electrical insulation tests, aerospace equipment, inspection, flightworthiness.