1、ASD STANDARD NORME ASD ASD NORM prEN 3660-024 Edition P 1 May 2007 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Avenue de Tervuren, 270 - B-1150 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 763 3565 - www.asd-stan.orgICS: 49.060 Descriptors: ENGLISH VERS
2、ION Aerospace series Cable outlet accessories for circular and rectangular electrical and optical connectors Part 024: Grommet nut, style A, composite Product standard Srie arospatiale Accessoires arrires pour connecteurs circulaires et rectangulaires lectriques et optiques Partie 024 : crou serre-f
3、ils, type A, composite Norme de produit Luft- und Raumfahrt Endgehuse fr elektrische und optische Rund- und Rechtecksteckverbinder Teil 024: Mutter, Bauform A, Composite Produktnorm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence
4、Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not
5、 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 ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standar
6、dization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by giving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication
7、 31 May 2007 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyright 2007 by ASD-STAN prEN 3660-024:20072 Contents Page Foreword2 1 Scope 3 2 Normative references 3 3 Terms and definitions .3 4 Characteristics.3 5 Designation 7 6 Marking .7 7 T
8、echnical specification .7 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Electrical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Public
9、ation. prEN 3660-024:20073 1 Scope This product standard defines a range of grommet nuts, style A, composite, for use under the following conditions: Associated electrical connector(s) : EN 3660-002 Temperature range, Class P : 55 C to 200 C 2 Normative references The following referenced documents
10、are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2591-*, Aerospace series Elements of electrical and optical connection Test metho
11、ds. EN 3660-001, Aerospace series Cable outlet accessories for circular and rectangular electrical and optical connectors Part 001: Technical specification. 1)EN 3660-002, Aerospace series Cable outlet accessories for circular and rectangular electrical and optical connectors Part 002: Index of prod
12、uct standards. 1)3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 3660-001 apply. 4 Characteristics 4.1 Dimensions and mass For dimensions and mass, see Figure 1 and Table 1. All its parts quoted. 1) Published as ASD Prestandard at the date of publicat
13、ion of this standard. prEN 3660-024:20074 All dimensions in millimetres Key 1 Thread A 2 Knurled, manufacturers option 3 Marking (see Clause 6) Figure 1 Table 1 B C Mass Shell size A Thread Class 2B max. + 0,25 0 max. inches mm mm g 08 0.500-20UNEF 15,55 10,04 1,7 10 0.625-24UNEF 18,52 12,70 1,9 12
14、0.750-24UNEF 21,67 16,16 2,2 14 0.875-20UNEF 24,87 18,04 2,6 16 1.000-20UNEF 28,13 21,21 3,0 18 1.0625-18UNEF 30,30 23,22 3,2 20 1.1875-18UNEF 33,48 26,39 3,4 22 1.3125-18UNEF 36,65 29,57 3,8 24 1.4375-18UNEF 39,83 32,49 4,1 prEN 3660-024:20075 4.2 Material and finish Material Class P : Composite, n
15、atural colour, unplated 4.3 Assembly torque These torque values are intended for installation use only, see Table 2. Table 2 Shell size Torque Nm max. 08 2,2 10 2,8 12 14 3,4 16 3,9 18 20 5,0 22 24 9,0 4.4 Coupling thread strength torques These torque values are for test purposes, see EN 2591-420 an
16、d Table 3. Table 3 Shell size Torque Nm max. 08 3,0 10 3,5 12 14 4,5 16 5,0 18 20 6,5 22 24 11,5 prEN 3660-024:20076 4.5 Tests Test details to be in accordance with Table 4 and EN 3660-001. Qualification to be in accordance with EN 3660-001. Table 4 EN 2591 Test No. Title Not applicable Applicable s
17、ee EN 3660-001 Particulars 101 Visual examination X 102 Examination of dimensions and mass X See 4.1. 205 Housing (shell) electrical continuity X 212 Surface transfer impedance (from 100 MHz to 1 GHz) aX 301 Endurance at temperature X Method B. Temperature: 200 C Duration: 1 000 h 305 Rapid change o
18、f temperature X 306 Mould growth X See EN 3660-001. 307 Salt mist X 308 Sand and dust X 314 Immersion at low air pressure X 315 Fluid resistance X 316 Ozone resistance X 317 Flammability X Method A on standard test specimen not on product 318 Fire-resistance X 402 Shock X 403 Sinusoidal and random v
19、ibration X 406 Mechanical endurance X 30 cycles 408 Mating and unmating forces X 420 Mechanical strength of rear accessories X Phase D and Table 3 422 Locking wire hole strength X 513 Magnetic permeability X 515 Hydrolytic stability X a1 GHz to 10 GHz under consideration. prEN 3660-024:20077 5 Desig
20、nation EXAMPLE EN3660-024P08 Grommet nut, style A, composite, variant P, natural colour, unplated, shell size 08. Description block GROMMET NUT Identity block EN3660-024P08 Number of this standard Material/Finish class, see 4.2 Shell size NOTE 1 No gaps are required between sections in the part number when printed. NOTE 2 If necessary, the code I9005 shall be placed between the description block and the identity block. 6 Marking Refer to EN 3660-001 and Figure 1. 7 Technical specification Refer to EN 3660-001.
