SIST EN 2240-075:2011

SIST EN 2240-075:2011 is the Slovenian adoption of EN 2240-075:2011 for aerospace incandescent lamps. It specifies the required characteristics for lamp, code 5448, and is meant to be used together with EN 2756 for testing. Engineers, buyers and quality teams use it to identify the lamp, check its construction and performance, and link it to the companion standards needed for specification and test work.

What does SIST EN 2240-075:2011 specify?

SIST EN 2240-075:2011 specifies the required characteristics for lamp, code 5448, for aerospace applications. The standard is arranged as a short product standard with Clauses 1 to 6, covering scope, normative references, required characteristics, designation, marking and technical specification.

Clause 3 is the technical core. It points readers to a figure of the bulb appearance and a table of the key lamp characteristics, so users can identify the product and check it against the required form and performance.

What are the key requirements of SIST EN 2240-075:2011?

Identification and application

SIST EN 2240-075:2011 applies to lamp, code 5448, for aerospace use. The standard says it should be used together with EN 2756, so test work is not done from this document alone. In practice, that means a buyer or engineer uses this part to define the lamp, then uses the companion test methods to verify it.

Required characteristics

SIST EN 2240-075:2011 gives the lamp's required characteristics in Clause 3 and Table 1. These include the nominal electrical values, luminous output, colour temperature, life under different current conditions, reduced-voltage behavior, filament form, light centre length and mass. In practice, these are the acceptance points that a manufacturer and purchaser need to agree and check.

Dimensions and construction

SIST EN 2240-075:2011 ties the lamp's dimensions and mass to Figure 1 and Table 1, with dimensions given in millimetres. The bulb appearance is shown in the figure, and the filament form is specified by reference to EN 2240-002. The cap is stated as BA9s/13 and is linked to EN 2241 for dimensions. This helps prevent installation or interchangeability problems.

Designation

SIST EN 2240-075:2011 gives a structured designation in Clause 4 with a description block and an identity block. The example shows how the lamp is named in documentation, and it notes that code I9005 may be placed between the description block and the identity block if needed. In practice, this gives procurement, stock control and certification a consistent way to identify the exact lamp.

Marking and technical specification

SIST EN 2240-075:2011 requires the lamp and its packaging to be marked with the international code number, where space permits. Clause 6 points users to EN 2240-001 for the technical specification. That means the standard does not stand alone for full procurement data sheets - it directs the user to the part that contains the broader technical specification.

What terms does SIST EN 2240-075:2011 define?

• Light centre - The point identified in Figure 1 that is used as the lamp's optical reference.
• LCL - Light centre length, the distance used to locate the light centre in the lamp geometry.
• d.c. - Direct current, used in the life conditions stated for the lamp.
• a.c. - Alternating current, used in one of the stated life conditions.
• CC-6 - The filament form required for this lamp, referenced through EN 2240-002.
• BA9s/13 - The cap designation used for this lamp, with its dimensions covered by EN 2241.

Who uses SIST EN 2240-075:2011?

SIST EN 2240-075:2011 is used by aerospace lamp manufacturers, aircraft equipment suppliers, test laboratories, quality managers and purchasing teams. It is relevant wherever a lamp for aerospace applications has to be specified, built, inspected, tested or bought to a common European product definition. It also helps certification and conformity teams align product identification with the related test and specification standards.

Which standards are used with SIST EN 2240-075:2011?

• EN 2240-001 - Provides the technical specification for incandescent lamps in this series.
• EN 2240-002 - Gives the main characteristics and the filament-form reference used by this part.
• EN 2241 - Covers lamp cap dimensions, including the BA9s/13 cap referenced here.
• EN 2756 - Gives the test methods that are to be used with this product standard.

What does the SIST EN 2240-075:2011 document contain?

SIST EN 2240-075:2011 contains a foreword, six clauses and one figure plus one table in the requirements section. Clause 3 combines the bulb appearance figure with the table of required characteristics, so readers can relate the physical form to the performance data. The later clauses provide the designation format, the marking instruction and the link to the technical specification. Together, these parts support product definition, inspection, test planning and procurement documentation.