ISO 2436:1973 PDF

Name: ISO 2436:1973 — Heat-resisting equipment wires for aircraft — Methods of test
SKU: ISO 2436:1973
Price: 25 EUR
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Heat-resisting equipment wires for aircraft — Methods of test

Название (английский):

ISO 2436:1973

Heat-resisting equipment wires for aircraft — Methods of test

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 2
Дата публикации:: 1 апреля 1973 г.
Издание:: ISO IS 2436 edition 1 version 1
ICS:: 49.060

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Описание (английский):

This International Standard specifies the rest procedures suitable for establishing the compliance of wires with the performance requirements stated in ISO 2032. They are intended for use as a basis for specifying tests in the relevant national specifications when the national type approving authorities consider that existing tests are inadequate. The test procedures are classified in type tests only, type and production routine tests and type and production quality tests.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO 2436:1973 specifies standardized methods of test for heat-resisting equipment wires used in aircraft. The procedures are intended to establish compliance with the performance requirements of ISO 2032 and to provide a basis for national test specifications when existing tests are inadequate. Tests are organized by purpose: type tests only, type and production routine tests, and type and production quality tests.

This standard focuses on practical, repeatable test methods including high-temperature ageing, low-temperature bending, voltage and insulation verification, dimensional and conductor resistance checks, and inspection requirements for coatings and solderability.

Key Topics

Classification of tests: Type tests; Type and production routine tests; Type and production quality tests.

High-temperature ageing:

Specimens may be wound on a metal mandrel (diameter = 10 × maximum specified conductor diameter).
Typical ageing condition: air oven at 275 ± 5 °C for 168 hours, followed by insulation and voltage testing while under mechanical strain.
Purpose: confirm insulation integrity and electrical withstand when insulation is strained at high temperature.

Low-temperature bend test:

Specimens stored at −50 ± 5 °C for 6 hours, then wound on a cooled metal mandrel (mandrel diameter = 10 × maximum specified conductor diameter), one turn per second.
Inspect for cracking while the specimen remains on the mandrel.

Voltage and immersion tests:

After mechanical tests, specimens may be immersed in water at 20 ± 5 °C for 5 minutes with ends protruding 100 mm and subjected to the appropriate voltage for 1 minute (see ISO 2032 / standard table references).

Other tests and inspections:

Flammability/self-extinguishing checks as required by national specifications.
Tensile and elongation tests on conductors per ISO 2032 clause references.
Coating and braid inspections for silver or other metal coatings; solderability testing as specified by national requirements (IEC Publication 68-2-20 Test T cited as an option).
Stability (non-retraction) test: a 2 m length stored at 275 ± 5 °C for 1 h; allowable total insulation retraction ≤ 3 mm.

Applications

Supporting type approval and production quality control of heat-resisting wiring for aircraft equipment and harnesses.

Defining national test specifications where current tests are inadequate for aviation type-approval.

Ensuring electrical safety, mechanical durability and thermal performance of wires used in aircraft and space vehicle equipment.

Related Standards

ISO 2032 - Performance requirements for heat-resisting equipment wires for aircraft (test compliance reference).

IEC Publication 68-2-20 (Test T) - Solderability (solder globule method) cited as a candidate solderability test.

ISO technical committee background: developed by ISO/TC 20 (Aircraft and space vehicles).

For implementation, reference the clauses and test conditions within ISO 2436:1973 and the performance criteria of ISO 2032 to ensure consistent type and production testing for heat-resisting aircraft wires.

ISO 2436:1973 PDF

Abstract

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Overview

Key Topics

Applications

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