EN 2591-206:1996

Overview

EN 2591-206:1996 is a CEN aerospace-series test method standard titled "Elements of electrical and optical connection - Test methods - Part 206: Measurement of insulation resistance." It specifies a standardized method for measuring the insulation resistance of connector elements, whether mated or unmated, and is intended to be used together with the broader EN 2591 series. This standard supports consistent evaluation of dielectric integrity for electrical and optical connection components used in aerospace applications.

Key topics and requirements

• Scope and applicability: Defines the purpose - measurement of insulation resistance for elements of electrical and optical connection in aerospace equipment.
• Test method definition: Establishes the procedural approach for insulation resistance measurements, including sample configuration (mated or unmated).
• Test setup and instrumentation: Describes the required measurement arrangement and instrumentation characteristics to ensure reliable, repeatable resistance readings.
• Conditioning and preparation: Covers specimen preparation and environmental or conditioning considerations prior to testing to ensure representative results.
• Measurement conditions: Specifies controlled test conditions (e.g., electrical stress application, measurement timing) needed for comparable data across labs and manufacturers.
• Result recording and reporting: Identifies the format and minimum information required in test reports to document insulation resistance outcomes and test parameters.
• Conformance context: Intended to be applied in conjunction with other parts of EN 2591 for full assessment and interpretation of connector performance.

(Note: Specific numerical test values, voltages or acceptance limits are not reproduced here and should be obtained from the full EN 2591-206 text.)

Applications

• Quality control and production testing of aerospace connectors and cable assemblies.
• Qualification and type-approval testing during connector design and supplier assessment.
• Maintenance, troubleshooting and periodic verification of insulation integrity in aircraft electrical and optical systems.
• Comparative laboratory testing to verify supplier claims and to support procurement specifications.

Who should use this standard

• Aerospace electrical and avionics engineers
• Connector and cable manufacturers
• Test laboratories and certification authorities
• Quality assurance and compliance teams
• Maintenance organizations responsible for avionics systems

Related standards

• EN 2591 (general series for elements of electrical and optical connection and associated test methods)
• Other parts of EN 2591 addressing mechanical, environmental and electrical performance tests

Keywords: EN 2591-206, insulation resistance measurement, aerospace connectors, test methods, elements of electrical and optical connection, CEN, mated and unmated, connector insulation testing, aerospace electrical equipment.