EN 2240-027:2010

Aerospace series - Lamps, incandescent - Part 027: Lamp, code 334 - Product standard

This standard specifies the required characteristics for lamp, code 334, for aerospace applications.
It shall be used together with EN 2756.

Luft- und Raumfahrt - Glühlampen - Teil 027: Lampe, Kode 334 - Produktnorm

Diese Norm legt die Anforderungen von Lampen, Kode 334, zur Anwendung in der Luftfahrt fest.
Sie ist in Verbindung mit EN 2756 anzuwenden.

Série aérospatiale - Lampes à incandescence - Partie 027: Lampe, code 334 - Norme de produit

Aeronavtika - Žarnice - 027. del: Žarnica, kod 334 - Standard za proizvod

Ta standard opredeljuje zahtevane značilnosti za žarnico, kod 334, za aeronavtično uporabo. Uporablja se skupaj z EN 2756.

General Information

• Status: Published
• Publication Date: 09-Mar-2010
• Withdrawal Date: 29-Sep-2010
• ICS: 49.060 - Aerospace electric equipment and systems
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 2 - Electrical
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 01-Jun-2017
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 2240-027:2010 - Aerospace series - Lamps, incandescent - Part 027: Lamp, code 334 - Product standard

Overview

EN 2240-027:2010 is a CEN (ASD-STAN) product standard in the Aerospace series that specifies the required characteristics for lamp, code 334 - an incandescent lamp intended for aerospace applications. This standard defines the physical, electrical and performance attributes required for procurement, design and verification of this specific lamp type and is intended to be used together with EN 2756 (test methods).

Key topics and technical requirements

The standard focuses on specific, measurable lamp characteristics. Key technical points include:

• Electrical ratings
  • Nominal voltage: 28 V
  • Nominal current: 0.04 A
  • Nominal power: 1.12 W
• Light output and appearance
  • Nominal luminous flux: 4.3 lm
  • Colour temperature: ~2100 K
  • Bulb appearance: clear
• Life and endurance
  • Static life (d.c.): 1 000 h
  • Dynamic life (d.c.): 750 h
  • Static life (a.c.): 1 500 h
• Mechanical and dimensional
  • Light Centre Length (LCL): 9.5 ± 1 mm
  • Form of filament: referenced to EN 2240-002 (filament form C - 2F)
  • Cap: S5,7s/8 (see EN 2241 for dimensions)
  • Mass (for 1 000 units): 0.62 kg
• Designation and marking
  • Designation example: LAMP, INCANDESCENT - EN2240-334
  • Lamps and packaging shall be marked with the international code number as defined in EN 2240-002 (unless space is insufficient).
• Reference to test methods
  • Measured and verified using procedures in EN 2756 and technical specification in EN 2240-001.

Applications and who uses this standard

EN 2240-027:2010 is primarily useful for:

• Aircraft OEMs specifying replaceable incandescent lamps for cockpits, indicators and panels
• Parts manufacturers and lamp suppliers designing and producing lamp code 334 to aerospace requirements
• Procurement teams creating purchase specifications and inspection criteria
• Maintenance organisations and MROs selecting approved replacement lamps
• Test laboratories performing conformity testing against EN 2756 methods
• Certification and quality assurance personnel ensuring compliance with aerospace component standards

Typical applications include indicator lights, small panel lamps and other low‑power lighting functions in aerospace electrical systems.

Related standards

• EN 2240-001 - Technical specification (see for general lamp requirements)
• EN 2240-002 - Main characteristics (filament forms, coding)
• EN 2241 - Lamp caps - Dimensions
• EN 2756 - Test methods (to be used together with this product standard)

Keywords: EN 2240-027, lamp code 334, aerospace lamp, incandescent lamp, aircraft lighting, CEN standard, EN 2756, lamp specifications.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Žarnice - 027. del: Žarnica, kod 334 - Standard za proizvodLuft- und Raumfahrt - Glühlampen - Teil 027: Lampe, Kode 334 - ProduktnormSérie aérospatiale - Lampes à incandescence - Partie 027: Lampe, code 334 - Norme de produitAerospace series - Lamps, incandescent - Part 027: Lamp, code 334 - Product standard49.060Aerospace electric equipment and systemsICS:Ta slovenski standard je istoveten z:EN 2240-027:2010SIST EN 2240-027:2010en01-maj-2010SIST EN 2240-027:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2240-027
March 2010 ICS 49.060 English Version
Aerospace series - Lamps, incandescent -Part 027: Lamp, code 334 - Product standard
Série aérospatiale - Lampes à incandescence - Partie 027: Lampe, code 334 - Norme de produit
Luft- und Raumfahrt - Glühlampen - Teil 027: Lampe, Kode 334 - Produktnorm This European Standard was approved by CEN on 16 January 2010.
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 CEN Management Centre 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 CEN Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2240-027:2010: ESIST EN 2240-027:2010
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