SIST EN 2349-201:2009

Overview

SIST EN 2349-201:2009 is a European standard developed by CEN that outlines the requirements and test procedures for the visual inspection of relays and contactors used in aerospace applications. As part of the aerospace series standards, this document focuses specifically on visual examination methods to ensure product quality and compliance. It is designed to be applied in conjunction with EN 2349-100, which covers the general requirements for relays and contactors. This standard plays a critical role in maintaining the safety, reliability, and performance of electrical components in aerospace systems.

Key Topics

• Scope and Application
  Defines methods for visual inspection of aerospace relays and contactors without destructive testing. Ensures conformity with material, construction, marking, and finishing standards.

• Normative References
  Refers particularly to EN 2349-100 for general requirements, emphasizing the integrated approach to aerospace relay and contactor testing.

• Inspection Procedure
  Specifies that only unaided visual examination (naked eye inspection) is used, eliminating the need for specimen preparation.

• Requirements
  All inspected components must meet the criteria laid out in applicable product standards, focusing on appearance and manufactural integrity.

Applications

SIST EN 2349-201:2009 is essential for aerospace manufacturers, quality control inspectors, and certification bodies dealing with:

• Aerospace Electrical Systems
  Used to verify the quality of electrical relays and contactors critical to aircraft safety and functionality.

• Manufacturing Quality Assurance
  Assists in early detection of manufacturing defects or material inconsistencies before further electrical or mechanical testing.

• Component Certification
  Supports compliance verification during product certification, ensuring components meet aerospace industry standards.

• Maintenance and Inspection Programs
  Provides a standardized visual inspection framework for routine maintenance checks on electrical components in aerospace vehicles.

Related Standards

• EN 2349-100: Aerospace series - Requirements and test procedures for relays and contactors - Part 100: General requirements
  A foundational document establishing broad criteria for relay and contactor design, testing, and performance.

• Other Parts of EN 2349 Series
  These cover additional specific test procedures and performance criteria related to aerospace relays and contactors, complementing the visual inspection outlined in Part 201.

• Aerospace Electrical Equipment Standards (ICS 49.060)
  Incorporates related standards ensuring the integrity and reliability of aerospace electrical hardware and systems.

Summary

The SIST EN 2349-201:2009 standard provides a clear and structured method for the visual inspection of aerospace relays and contactors with the goal of ensuring compliance to aerospace quality standards. By specifying a simple yet effective naked-eye examination process, this standard helps manufacturers and inspectors maintain high reliability in electrical systems critical to aerospace safety. When used alongside EN 2349-100, this document ensures comprehensive evaluation from visual checks to general product requirements, supporting robust quality assurance practices within the aerospace industry.