ISO 1949-1987 PDF

Full title and description

ISO 1949:1987 — Aircraft — Electrical connectors — Design requirements. Defines general performance, mechanical and electrical design requirements and environmental conditions for electrical connectors intended for use in aircraft; applies to connectors using crimped, soldered or welded contacts and does not prescribe specific dimensional types.

Abstract

This International Standard lays down general performance requirements and standardization principles for aircraft electrical connectors. It is intended to cover connector types designed to use crimped, soldered and welded contacts accommodating aircraft cables, and it outlines basic design, mechanical and electrical requirements and the principal environmental conditions of operation without defining particular connector dimensions.

General information

• Status: Published (1973 edition withdrawn; 1987 edition confirmed and current).
• Publication date: July 1987 (Edition 2, 1987).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 49.060 (Aerospace electric equipment and systems).
• Edition / version: Edition 2 (1987).
• Number of pages: 12 pages.

Core bibliographic and status details as recorded by ISO.

Scope

Specifies general design and performance requirements for electrical connectors intended for aircraft applications, covering mechanical, electrical and environmental aspects relevant to reliable operation in aircraft environments. The standard addresses connectors that use crimped, soldered or welded contacts and establishes standardization principles and performance limits but does not set detailed dimensional characteristics for specific connector types.

Key topics and requirements

• General performance requirements and standardization principles for aircraft electrical connectors.
• Mechanical requirements: retention, contact mating/unmating forces, resistance to vibration and shock, mechanical durability.
• Electrical requirements: contact resistance, insulation resistance, dielectric strength, current-carrying capacity and contact integrity.
• Environmental requirements: temperature range, humidity, corrosion resistance and resistance to other typical aircraft environmental stresses.
• Compatibility with crimped, soldered and welded contact terminations used on aircraft cables.
• Material and plating considerations to ensure conductivity, corrosion protection and mechanical performance.
• Reference to appropriate test conditions and verification methods for the above requirements.

Typical use and users

Used by aerospace component manufacturers, connector designers, aircraft systems engineers, procurement and quality assurance teams, testing and certification bodies, and maintenance/repair organizations involved in specifying, producing, testing or approving electrical connectors for aircraft applications.

Related standards

ISO 1949:1987 replaces ISO 1949:1973 (withdrawn). Users will often consider this standard alongside other aerospace connector specifications and national or military connector standards when specifying or qualifying connector products for aircraft use.

Keywords

aircraft connectors, electrical connectors, connector design, performance requirements, crimped contacts, soldered contacts, welded contacts, aerospace electrical systems, ISO 1949:1987

FAQ

Q: What is this standard?

A: ISO 1949:1987 is an International Standard specifying design and performance requirements for electrical connectors intended for aircraft applications.

Q: What does it cover?

A: It covers general performance, mechanical and electrical requirements and environmental conditions for connectors that use crimped, soldered or welded contacts, but it does not prescribe specific dimensional types.

Q: Who typically uses it?

A: Connector manufacturers, aerospace engineers, procurement and quality teams, test laboratories, certification authorities and maintenance organizations involved with aircraft electrical systems.

Q: Is it current or superseded?

A: The 1987 edition (Edition 2) is the current published edition; it was reviewed and confirmed (remains current) per ISO's review cycle. The 1973 edition was withdrawn and superseded by the 1987 edition.

Q: Is it part of a series?

A: It falls under the work of ISO/TC 20/SC 1 (aerospace electrical equipment and systems) and sits alongside other ISO and national/military standards addressing connectors and aerospace electrical interfaces.

Q: What are the key keywords?

A: Aircraft connectors, electrical connectors, connector design, performance requirements, crimp contacts, soldered contacts, welded contacts, aerospace.