EN 2591-201:1996

Aerospace series - Elements of electrical and optical connection - Test methods - Part 201: Contact resistance - Low level

This standard specifies a method for measuring the low level electrical resistance across a pair of mated contacts and their terminations.  It shall be used together with EN 2591.

Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 201: Kontaktwiderstand im Schwachstrombereich

Diese Norm legt ein Verfahren zur Messung des elektrischen Widerstandes im Schwachstrombereich eines gekuppelten Kontaktpaares und seines Anschlusses fest. Sie ist in Verbindung mit EN 2591 anzuwenden.

Série aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 201: Résistance de contact sous faible intensité

Cette norme spécifie une méthode pour mesurer la résistance électrique sous faible intensité d'une paire de contacts accouplés et de son raccordement. Elle doit être utilisée conjointement avec EN 2591.

Aerospace series - Elements of electrical and optical connection - Test methods - Part 201: Contact resistance - Low level

General Information

• Status: Published
• Publication Date: 20-Feb-1996
• Withdrawal Date: 30-Aug-1996
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 2 - Electrical
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 01-Jun-2017
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 2591-201:2001 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 201: Contact resistance - Low level

Overview

EN 2591-201:1996 - part of the CEN Aerospace series - specifies a standardized method to measure low level contact resistance across a pair of mated electrical contacts and their terminations. This test method is intended to be used together with the general EN 2591 test framework and supports reproducible resistance measurements that help assess connector integrity and electrical performance in aerospace applications.

Key topics and technical requirements

The standard focuses on the practical and technical aspects of low-level contact resistance testing without prescribing unrelated connector design details. Key topics typically covered include:

• Scope and applicability: measurement of electrical resistance across mated contact pairs and terminations at low signal levels.
• Test specimen preparation: guidance on how contacts and terminations should be assembled for consistent results.
• Measurement principles: standardized procedures and arrangement for low-level resistance measurement to minimize errors (e.g., contact arrangement, leads, and termination points).
• Instrumentation and accuracy: requirements for measurement instruments and methods needed to achieve repeatable, low-noise resistance readings.
• Test sequence and reporting: what data to record and how to report results to support quality control, qualification and comparison between lots or designs.
• Use with EN 2591: reference to the broader EN 2591 series for complementary procedures and definitions.

Note: EN 2591-201 defines procedural and metrological requirements rather than specific connector design criteria.

Applications

EN 2591-201 is directly relevant to activities where reliable low-level contact resistance measurement is critical:

• Acceptance and lot testing of aerospace connectors
• Connector qualification and reliability assessment
• Research & development of contact materials and surface finishes
• Quality assurance and production control in connector manufacturing
• Troubleshooting and maintenance verification for aircraft electrical systems

Using this standardized method improves comparability of results between suppliers, test laboratories and operators.

Who should use this standard

• Aerospace electrical design and test engineers
• Connector and contact manufacturers
• Independent test laboratories and certification bodies
• Quality assurance and production teams in aerospace supply chains
• Maintenance, repair and overhaul (MRO) organizations validating connector integrity

Related standards

• EN 2591 (main series): overarching guidance for tests on electrical and optical connection elements - EN 2591-201 is intended to be used in conjunction with this series.
• Other aerospace connector and electrical test standards (refer to industry-specific normative documents for complementary procedures).

Keywords: EN 2591-201, contact resistance, low level, test methods, aerospace connectors, contact resistance measurement, connector testing, CEN standard.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Elements of electrical and optical connection - Test methods - Part 201: Contact resistance - Low levelLuft- und Raumfahrt - Elektrische und optische Verbindungselemente - Prüfverfahren - Teil 201: Kontaktwiderstand im SchwachstrombereichSérie aérospatiale - Organes de connexion électrique et optique - Méthodes d'essais - Partie 201: Résistance de c
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