SIST EN 2240-032:2010

Overview

SIST EN 2240-032:2010 is a European standard developed by CEN that defines the product requirements for incandescent lamps, specifically lamp code 376, intended for aerospace applications. This standard is part of the broader EN 2240 aerospace series related to incandescent lamps. It ensures that lamps used in aircraft meet consistent performance, safety, and dimensional specifications critical for aerospace electric systems. The standard works in conjunction with EN 2756, which covers test methods, to provide a comprehensive guideline for manufacturing and quality assessment.

Key Topics

• Scope and Application
  SIST EN 2240-032:2010 covers lamp code 376, used primarily in aerospace equipment. It specifies electrical, mechanical, and photometric requirements to ensure reliability and performance under aviation conditions.

• Dimensions and Mass
  Precise physical dimensions and weight are specified, including:

  • Light Centre Length (LCL): 9.5 ± 1 mm
  • Mass per 1,000 lamps: 0.65 kg
    These dimensional requirements support compatibility with aerospace fixtures and maintain design uniformity.

• Electrical and Photometric Characteristics
  Key electrical parameters include:

  • Nominal voltage: 28 V
  • Nominal current: 0.06 A
  • Nominal power: 1.68 W
  • Nominal luminous flux: 4.3 lumens
  • Colour temperature: 2,000 K
    The lamp demonstrates different life expectancies depending on operating conditions:
  • Static life with direct current (DC): 3,000 hours
  • Dynamic life with DC: 2,000 hours
  • Static life with alternating current (AC): 4,000 hours

• Filament and Cap Specifications
  The filament has a C-shaped two-filament design (C - 2F) per EN 2240-002. The lamp cap type is SX6s, as specified in EN 2241.

• Markings and Identification
  The lamp and packaging must be marked with the international code number consistent with EN 2240-002 for easy identification and traceability.

Applications

SIST EN 2240-032:2010 lamps are designed specifically for aerospace environments, including:

• Aircraft Lighting Systems
  Lighting used within cockpits, instrument panels, cabin lighting, and signaling systems requiring reliable incandescent lamps that meet stringent aerospace standards.

• Aerospace Electrical Equipment
  Components reliant on incandescent lamps for status indicators, warning lights, and other specialized illumination in aerospace electrical assemblies.

• Defense and Spacecraft Use
  Due to its rigorous requirements and tested performance, the lamp standard is applicable in defense aviation and potentially spacecraft instrumentation where incandescent lamps are specified.

Using lamps compliant with EN 2240-032 ensures adherence to safety, reliability, and performance criteria vital to operating under the demanding conditions experienced in aerospace applications.

Related Standards

• EN 2240-001: Technical Specification
  Defines the general technical specifications for incandescent lamps in aerospace use.

• EN 2240-002: Main Characteristics
  Specifies electrical and mechanical characteristics common to lamps in the EN 2240 series.

• EN 2241: Lamp Caps Dimensions
  Covers dimensional requirements for lamp caps, including SX6s used by lamp code 376.

• EN 2756: Test Methods
  Details the required test procedures for verifying lamp performance and durability, used in conjunction with SIST EN 2240-032:2010.

Together, these standards form a comprehensive framework to standardize aerospace incandescent lamps, ensuring quality and interchangeability for aerospace manufacturers and operators.

Keywords: SIST EN 2240-032:2010, aerospace incandescent lamp standard, lamp code 376, aerospace lighting, aerospace electrical equipment, CEN aerospace standards, incandescent lamps, SX6s lamp caps, lamp dimensions aerospace, aerospace lamp specifications, aviation lighting standards.