Flyg- och rymdteknik

Ämnesområden: Titan
Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 23 mar 2024
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This document specifies the general requirements for recycling, by vacuum remelting or cold hearth melting, titanium and titanium alloy scrap used for the production of ingots.

Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 30 mar 2024
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This document specifies the characteristics of three-pole circuit breakers, temperature compensated with a rated current from 1 A to 25 A, used in aircraft on-board circuits at a temperature between -55 °C and 125 °C for ratings ≤ 15 A and -55 °C to 90 °C for ratings > 15 A and at an altitude of 22 000 m max. These circuit breakers are operated by a push-pull type single pushbutton (actuator), with delayed action "trip-free" tripping with a signal contact which is open when main contacts are closed, and inversely. They will continue to function up to the short-circuit current.

Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 30 mar 2024
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This document specifies the characteristics of three-pole circuit breakers, temperature compensated with a rated current from 1 A to 25 A, used in aircraft on-board circuits at a temperature between −55 °C and 125 °C for ratings ≤ 15 A and −55 °C and 90 °C for ratings > 15 A and at an altitude of 22 000 m max. These circuit breakers are operated by a push-pull type single push button (actuator), with delayed action "trip-free" tripping with a polarized signal contact which is open when main contacts are closed, and inversely. They will continue to function up to the short-circuit current.

Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 2 apr 2024
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This document specifies the characteristics of square flange mounted receptacles with integrated accessory in the family of circular electrical connectors coupled by threaded ring. It applies to classes specified in Table 3. For contacts, filler plugs associated with this receptacle, see EN 2997 002. For plugs, see EN 2997 008 and EN 2997 016 and for protective covers, see EN 2997 009.

Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 2 apr 2024
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This document specifies the required characteristics of a semi rigid coaxial cable, 50 Ω, type WD, for use in aircraft electrical systems at operating temperature between –55 °C and 200 °C and specially for high frequency up to 6 GHz. Nevertheless, if needed, −65 °C is also acceptable as shown by thermal stability test.

Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 2 apr 2024
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1.1 Introduction This document defines common fundamental concepts for long term archiving and retrieval of mechanical CAD information for elementary parts and assemblies. It details the "fundamentals and concepts" of EN 9300-003:2012 in the specific context of long-term archiving of CAD mechanical models. Mechanical CAD information is divided into assembly structure and geometrical information, both including explicit and implicit geometrical representation, geometric dimensioning and tolerancing with form features. The EN 9300-1XX family is organized as a sequence of parts, each building on the previous ones in a consistent way, each adding a level of complexity in the CAD data model. This includes the detailing of relationships between the essential information for the different types of CAD information covered by the EN 9300-1XX family. As technology matures, additional parts will be released in order to support new requirements within the aerospace community. 1.2 In scope The present part describes: - the fundamentals and concepts for long-term archiving and retrieval of 3D mechanical CAD information; - the document structure of the EN 9300-1XX family, and the links between all these parts; - the qualification methods for long-term preservation of archived mechanical CAD information; more specially, principles for the CAD validation properties and for verification of the quality of the CAD archived file; - specifications for the preservation planning of archived CAD information; - specific functions for administration and monitoring of CAD archived mechanical models; - the definition of archive information packages for CAD data. 1.3 Out of scope The following are out of scope for this part: - long-term archiving of CAD 2D drawings; - other CAD specialization disciplines, such as electrical harnesses, composite.

Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 2 apr 2024
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This document defines the characteristics and the tests required to qualify and control lots of high purity (≥ 99 %) aluminium coatings applied by ion-vapor deposition (IVD) on fasteners.

Ämnesområden: Bultar, skruvar
Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 2 apr 2024
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This document specifies the characteristics of screws, pan head, offset cruciform recess, threaded to head, in corrosion resisting steel, passivated, metric. Classification: 490 MPa /425 °C

Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 5 apr 2024
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This document specifies the performances and contact arrangements groups for bayonet coupling circular connectors, intended for use in an operating temperature range of −65 °C to 175 °C or 200 °C continuous.

Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 13 apr 2024
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This document specifies the dimensions, linear resistance, mechanical characteristics, construction and mass of conductors in aluminium or aluminium alloy for electrical cables for aerospace applications. It applies to stranded conductors with nominal cross-sections of 5 mm2 to 115 mm2 inclusive.

Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 14 apr 2024
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This document specifies the required characteristics and tests applicable to female electrical contacts 005, type A, crimp, class T, used in elements of connection according to EN 3155 002. It is used together with EN 3155 001. The associated male contacts are specified in EN 3155 004. The contacts specified by this standard are applicable for connector classes specified in EN 2997 series. This document specifies two contact types (F and H) depending on connector class.

Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 14 apr 2024
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This document specifies the required characteristics, tests and tooling applicable to male electrical contacts 004, type A, crimp, class T, used in elements of connection according to EN 3155 002. It is used together with EN 3155 001. The associated female contacts are specified in EN 3155 005. The contacts specified by this document are applicable for connector classes specified in EN 2997 series. This document specifies two contact types (M and H) depending on connector class.

Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 14 apr 2024
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This document specifies the required characteristics, tests and tooling applicable to male electrical contacts, type A, crimp, class S, used in elements of connection according to EN 3155 002. It is used together with EN 3155 001. The tests as applied in this standard do not permit the full qualification and shall be completed with associated components.

Kommittébeteckning: SIS/TK 998 (Standardiseringsarbete utan svenskt deltagande)
Källa: CEN
Svarsdatum: den 27 apr 2024
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This document specifies a method of determining the attenuation variation of an optical cable during mechanical bending under load at the maximum and minimum operating temperatures.