SIST EN 2240-044:2010

SIST EN 2240-044:2010 is the Slovenian adoption of EN 2240-044:2010 from CEN for aerospace incandescent lamps. It specifies the required characteristics for lamp, code 713, and is meant to be used together with EN 2756, which provides the test methods. In practice, it is the product standard for defining the lamp’s geometry, electrical and photometric characteristics, marking, and designation.

What does SIST EN 2240-044:2010 specify?

SIST EN 2240-044:2010 specifies the required characteristics for lamp, code 713, for aerospace applications. The document is organized into Foreword, Scope, Normative references, Required characteristics, Designation, Marking, and Technical specification.

The scope is narrow and practical: it identifies one lamp type in the Aerospace series and points users to EN 2756 for testing. That means the document is not a general lamp handbook - it is the product definition that manufacturers, buyers, and test laboratories use for this specific lamp code.

What are the key requirements of SIST EN 2240-044:2010?

SIST EN 2240-044:2010 defines the lamp by its dimensions, electrical and luminous characteristics, filament form, cap, designation, marking, and technical specification reference. These are the points that matter when a supplier has to build the lamp and when a buyer or inspector has to identify and verify it.

Clause 3.1 and Figure 1 - dimensions and mass

SIST EN 2240-044:2010 gives the lamp’s dimensions in Figure 1 and Table 1, and it identifies the light centre. It also includes mass in Table 1. In practice, this is the information used to check whether the lamp fits the intended space and optical position.

Clause 3.2 - other characteristics

SIST EN 2240-044:2010 groups additional required characteristics in Table 1. The table covers the main electrical and photometric properties, so users can compare supplied lamps against the product definition rather than relying on a generic lamp description.

Clause 3.3 - form of filament

SIST EN 2240-044:2010 says the form of filament follows EN 2240-002. This matters because filament shape affects light output, durability, and interchangeability within the series.

Clause 3.4 - cap

SIST EN 2240-044:2010 states that the lamp has no cap. In practice, this tells the user that the lamp is defined without a base fitting and must be handled and installed accordingly.

Clause 4 - designation

SIST EN 2240-044:2010 defines a designation structure with a description block and an identity block, using EN2240-713 as the identity example. It also notes the optional code I9005. This is the format used in ordering, cataloguing, and technical documents so everyone refers to the same lamp type.

Clause 5 - marking

SIST EN 2240-044:2010 requires the lamp and its packaging to be marked with the international code number, as indicated in EN 2240-002, unless space is insufficient. This supports traceability and correct identification in supply and storage.

Clause 6 - technical specification

SIST EN 2240-044:2010 points users to EN 2240-001 for the technical specification. That means this part defines the product type, while the base standard provides the broader technical rules needed for procurement and control.

What terms does SIST EN 2240-044:2010 define?

• LCL - Light centre length, the positioning dimension used to locate the lamp’s light centre.
• d.c. - Direct current, used here in the life conditions for the lamp.
• a.c. - Alternating current, also used in the life conditions.
• Light centre - The reference point shown in Figure 1 that matters for optical alignment.
• Cap - The lamp base or fitting; in this standard the lamp is specified without one.
• International code number - The identifying code used for marking the lamp and its packaging.
• Technical specification - The detailed product document referred to by the standard for full technical definition.

Who uses SIST EN 2240-044:2010?

SIST EN 2240-044:2010 is used by aerospace lamp manufacturers, procurement teams, quality managers, and test laboratories. Manufacturers use it to build the correct lamp type, buyers use it to specify what they need, and inspectors use it to check dimensions, marking, and declared characteristics.

It is also relevant to aerospace equipment integrators who need consistent identification and compatibility with the associated test methods in EN 2756.

Which standards are used with SIST EN 2240-044:2010?

• EN 2240-001 - Provides the technical specification that supports this product standard.
• EN 2240-002 - Provides the main characteristics, the filament form reference, and the marking code guidance.
• EN 2756 - Provides the test methods and is stated as necessary for using this document.

What does the SIST EN 2240-044:2010 document contain?

SIST EN 2240-044:2010 contains Figure 1, which shows the bulb appearance and the light centre, and Table 1, which collects the required dimensions and performance characteristics. It also includes the designation example, the marking rule, and the reference to the technical specification in EN 2240-001.

For readers working on design or verification, the most useful parts are the dimensional drawing, the characteristic table, and the designation format. For readers handling procurement or conformity checks, the marking requirement and the cross-references to EN 2240-002 and EN 2756 are the key parts to use.