SIST EN 2591-225:2008

Overview

EN 2591-225:2007 - Aerospace series - Test methods - Part 225: RF high potential withstanding voltage - is a CEN standard that specifies a laboratory test method for verifying the RF high-potential withstanding capability of a mated pair of aerospace electrical or optical connectors. It is intended to be used together with EN 2591-100 (general test requirements) and defines how to apply RF voltage to connector centre contacts relative to the conductive housing and evaluate breakdown and leakage behaviour.

Key topics and technical requirements

• Scope: Tests a mated connector pair under RF high potential withstanding voltage conditions.
• Specimen preparation: Connectors are wired with approximately 50 mm of the dedicated coaxial cable per EN 4604-002 and assembled into a high-impedance test circuit (see Figure 1 of the standard).
• Apparatus:
  • RF power source (specified up to 11 GHz)
  • RF transformer with variable output
  • RF voltmeter and RF ammeter
  • Variable capacitance element to form the high‑impedance circuit
• Method:
  • Apply the RF voltage and frequency specified in the product standard instantaneously between the centre contact(s) and the conductive housing.
  • Test duration is 1 minute.
  • The RF source must be stabilized and produce a high-quality sine wave (good form factor).
• Acceptance criteria:
  • No electrical breakdown shall occur during the test.
  • Leakage current must remain below the maximum value specified in the applicable product standard (EN 2591 product requirements), not defined in this part.

Applications and users

EN 2591-225 is practical for:

• Aerospace connector design verification and qualification testing
• Incoming inspection and acceptance testing of connector assemblies
• Environmental and electrical test laboratories performing RF dielectric withstand tests
• Quality assurance, procurement and certification teams verifying connector performance under RF high‑potential stress
• R&D and failure analysis when assessing RF breakdown or leakage in mated connector assemblies

Keywords/phrases for search relevance: aerospace connector testing, RF high potential test, EN 2591-225, withstanding voltage, mated pair of connectors, RF dielectric test, leakage current, RF testing up to 11 GHz.

Related standards

• EN 2591-100 - Aerospace series - Elements of electrical and optical connection - Test methods - Part 100: General (to be used together with this part).
• EN 4604-002 - Aerospace series - Cable, electrical, for signal transmission - Part 002: General (specifies the coaxial cable preparation used in specimen assembly).

This part provides a focused RF high‑potential test method; refer to the applicable product standard(s) for the exact voltage/frequency values and leakage current limits to be applied.