1、CEN PREN*2591 (PART*DEB) 92 3404589 0027006 8 E Edition approved for publication A.E.C.M.A. STANDARD NORME A.E.C.M.A. A.E.C.M.A. NORM Comments should be sent within six months C2 Chairman after the date of publication decision prEN 2591 Part DI8 Issue P I June 1992 DIT PAR LASSOCIATION EUROPENNE DES
2、 CONSTRUCTEURS DE MATRIEL AROSPATIAL Technopolis - 175, rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cdex - Tl. (1) 47.36.98.76 UDC : Key words : ENGLISH VERSION Aerospace series Elements of electrical and optical connection Test methods Part DI 8 - Gauge insertion and extraction forces i
3、n a female contact Srie arospatiale Luft- und Raumfahrt Organes de connexion lectrique et optique Partie DI 8 - Forces dinsertion et dextraction dun calibre dans un contact femelle Elektrische und optische Verbindungc6,Amente Teil DI 8 - Steck- und Ziehkraft der Lehre in der Kontaktbuchse Mthodes de
4、ssais Prfverfa hren This .Aerospace Series. pre-standard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on green paper for the needs of AECMA-Members. It has been technically approvedby the experts of the concerned
5、 Commission following comment by the Member countries. Subsequent to the publication of this pre-standard, 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 signatu
6、re of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for final vote. . A.E.C.M.A. M. J. LE CUNFF I Technopolis - 175, rue Jean-Jacques Rou
7、sseau 1992-06-05 921 38 Issy-les-Moulineaux Cdex - FRANCE aecma 1992 c prEN 2591-DT8 Page 3 1 Scope and field of application This standard specifies a method of verifying the insertion and extraction forces of resilient female contacts by means of a gauge. . It shall be used together with EN 2591. 2
8、 References EN 2591 Aerospace series - Elements of electrical and optical connection - Test methods - General 3 Preparation of specimens 3.1 The removable contacts shall be tested outside ; the non removable contacts shall be tested in the element of connection. 3.2 Unless indicated in the techflica
9、l specification, the following details shall be specified : - maximum insertion force and minimum insertion force, - gauges. 4 Apparatus The specimen shall be mounted in a suitable device so that increasing or decreasing loads may be applied for insertion or removal of the gauge defined by the techn
10、ical specification. 5 Method 5.1 Number of specimens 30 specimens for each contact size. 5.2 Procedure The gauge shall be introduced into each female contact to a depth equal to at least 70 % of the female contact depth L (see figure 1). Previous page is blank CEN PREN*K257L (PART*DLB) 72 I 340L1587
11、 0027008 I I prEN 2591 -DI 8 Page 4 I I 0.7 L i I+? O , I) Figure 1 Prior to commencing measurement, the maximum size gauge shall be inserted and extracted three times. The insertion forces shall be measured with the maximum size gauge. The extraction forces shall be measured with the minimum size gauge. 5.3 Requirements The forces measured shall meet the values specified by the technical specification.
