SIST EN 3841-506:2005

Aerospace series - Circuit breakers - Test methods - Part 506: Vibration performance

This standard specifies a method of verifying the vibration performance of circuit breakers.
It shall be used together with EN 3841-100.

Luft- und Raumfahrt - Schutzschalter - Prüfverfahren - Teil 506: Schwingungsverhalten

Série aérospatiale - Disjoncteurs - Méthodes d'essais - Partie 506 : Tenue aux vibrations

La présente norme spécifie une méthode pour vérifier la tenue aux vibrations des disjoncteurs.
Elle doit être utilisée conjointement avec EN 3841-100.

Aeronavtika - Odklopniki - Preskusne metode - 506. del: Lastnosti vibracij

General Information

• Status: Published
• Publication Date: 31-Mar-2005
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: SS SPL - Technical Board for the general field
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Apr-2005
• Due Date: 01-Apr-2005
• Completion Date: 01-Apr-2005
• Ref Project: EN 3841-506:2004 - Aerospace series - Circuit breakers - Test methods - Part 506: Vibration performance

Overview

SIST EN 3841-506:2005 is a European Standard developed by CEN that specifies a test method for verifying the vibration performance of aerospace circuit breakers. This standard is part of the aerospace series for circuit breakers and is intended to be used in conjunction with EN 3841-100, which covers general test methods for aerospace circuit breakers. Ensuring vibration resilience is critical in aerospace applications where electrical components face varying and intense vibration conditions.

Key Topics

• Scope and Purpose
  SIST EN 3841-506:2005 defines a systematic method to verify that circuit breakers maintain reliable performance under vibration stress typical of aerospace environments.

• Test Methods
  The standard prescribes several vibration tests the circuit breakers must undergo:

  • Sinusoidal vibration tests
  • Random vibration tests
  • Low-frequency sinusoidal tests
  • Optional gunfire vibration tests based on MIL-STD-810F method 519.3 (when specified)

• Mounting and Setup
  Circuit breakers must be mounted on a vibration device using methods that ensure transmission of vibrations uniformly across the frequency range without absorption or resonance. Electrical connections must follow specifications, including cable length and attachment points for stability during tests.

• Test Conditions
  Testing is conducted in three mounting positions relative to the main axis of the circuit breaker, with the device in both open and closed positions. Resonance frequencies are identified and tested for 30 minutes each, along with additional sweep periods, to assess endurance under realistic vibrational stress.

• Performance Requirements
  During testing, circuit breaker contacts must not experience unwanted closures or openings for durations exceeding 10 microseconds, ensuring operational integrity under vibration stress. Final acceptance criteria are defined in the product’s technical specifications.

Applications

• Aerospace Equipment Qualification
  SIST EN 3841-506:2005 is essential for aerospace manufacturers and suppliers who need to demonstrate that their circuit breakers meet rigorous vibration endurance requirements. This ensures safe and reliable electrical interruption systems in aircraft and spacecraft.

• Design Validation and Quality Control
  Engineers utilize this standard to validate circuit breaker designs during development and production phases, ensuring compliance with industry standards for vibration resilience.

• Maintenance and Retrofit Assessment
  Aeronautical maintenance entities can apply these test methods when assessing the suitability of replacement or upgraded circuit breakers to withstand vibration environments encountered during operation.

Related Standards

• EN 3841-100: Aerospace series – Circuit breakers – Test methods – Part 100: General - Provides foundational test procedures and mounting guidelines referenced in EN 3841-506.

• ISO 7137: Aircraft – Environmental conditions and test procedures for airborne equipment - Specifies vibration testing procedures utilized in part by EN 3841-506.

• MIL-STD-810F: Environmental engineering considerations and laboratory tests - Provides the gunfire vibration test method referenced optionally in this standard for simulating extreme vibration events.

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Keywords: EN 3841-506, aerospace circuit breakers, vibration performance, vibration test methods, aerospace electrical standards, circuit breaker testing, MIL-STD-810F, ISO 7137, aerospace equipment qualification, vibration resilience in aerospace, circuit breaker reliability.

Standards Content (Sample)

SLOVENSKI STANDARD
01-april-2005
Aeronavtika - Odklopniki - Preskusne metode - 506. del: Lastnosti vibracij
Aerospace series - Circuit breakers - Test methods - Part 506: Vibration performance
Luft- und Raumfahrt - Schutzschalter - Prüfverfahren - Teil 506: Schwingungsverhalten
Série aérospatiale - Disjoncteurs - Méthodes d'essais - Partie 506 : Tenue aux vibrations
Ta slovenski standard je istoveten z: EN 3841-506:2004
ICS:
49.060 /HWDOVNDLQYHVROMVND Aerospace electric
HOHNWULþQDRSUHPDLQVLVWHPL equipment and systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 3841-506
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2004
ICS 49.060
English version
Aerospace series - Circuit breakers - Test methods - Part 506:
Vibration performance
Série aérospatiale - Disjoncteurs - Méthodes d'essais - Luft- und Raumfahrt - Schutzschalter - Prüfverfahren - Teil
Partie 506 : Tenue aux vibrations 506: Schwingungsverhalten
This European Standard was approved by CEN on 10 September 2004.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3841-506:2004: E
worldwide for CEN national Members.

Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Method .4
3.1 Mounting.4
3.2 Procedure .4
3.3 Requirement.5
...