1、AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication 14 March 2003 prEN 3841 -503 Edition P 3 March 2003 Comments should be sent within six months after the date of publication to Electrical Domain AECMA-STAN ICs: 49.060 Descriptors: Supersedes edition P 2 September 1998 ENGLISH VE
2、RSION Aerospace series Circuit breakers Test methods Part 503: Strength of actuating components Srie arospatiale Luft- und Raumfahrt Disjoncteurs Schutzschalter Mthodes dessais Prfverfahren Partie 503 : Rsistance des lments de commande Teil 503: Festigkeit der Bettigungselemente This “Aerospace Seri
3、es“ Prestandard has been drawn up under the responsibility of AECMA-STAN (The European Association of Aerospace Industries - Standardization). It is published on green paper for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain foll
4、owing member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and review by users and formal agreement of
5、AECMA-STAN it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for formal vote. Page 2 prEN 3841-503: 2003 Foreword This standard was reviewed by the Domain Technical Coordinator of AECMA-STANS Electrical Domain. After inquiries and votes carried out in
6、accordance with the rules of AECMA-STAN defined in AECMA- STANS General Process Manual, this standard has received approval for Publication. Page 3 prEN 3841-503: 2003 1 Scope This standard specifies a method of verifying the strength of the actuating components of circuit breakers. It shall be used
7、 together with EN 3841-100. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequ
8、ent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 3841-100, Aerospace series - Circuit breakers - Test methods - Patt
9、700: General 1) 3 Method 3.1 Transverse load The push button in the closed and open positions shall be subjected to the load specified in the technical specification at the end of the button, perpendicularly to the direction of travel. The load shall be applied for 1 min each in the four main direct
10、ions. 3.2 Longitudinal load The push button shall be subjected to the force specified in the technical specification, for 1 min each in the push and pull directions. No damage shall be caused by the loads applied. 4 Requirements in accordance with technical specification and product standard. Req u i remen t 1) Published as AECMA Prestandard at the date of publication of this standard
