1、BSI Standards PublicationBS EN 4652-312:2015Aerospace series Connectors, coaxial, radiofrequencyPart 312: Type 3, N interface Clampnut assembly version Square flanger e c e p t a c l e P r o d u c t s t a n d a r dBS EN 4652-312:2015 BRITISH STANDARDNational forewordThis British Standard is the UK i
2、mplementation of EN 4652-312:2015.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/6, Aerospace avionic electrical and fibre optictechnology.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purpo
3、rt to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 89783 2ICS 49.060Compliance with a British Standard cannot confer immunity fromlegal obligations.Thi
4、s British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 4652-312:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 4652-312 December 2015 ICS 49.060 E
5、nglish Version Aerospace series - Connectors, coaxial, radio frequency - Part 312: Type 3, N interface - Clamp nut assembly version - Square flange receptacle - Product standard Srie arospatiale - Connecteurs coaxiaux pour radio frquences - Partie 312 : Type 3, interface N - Version presse toupe - E
6、mbase collerette carre - Norme de produit Luft- und Raumfahrt - Koaxiale Hochfrequenz-Steckverbinder - Teil 312: Typ 3, N-Anschluss - Klemmverbindung - fester Steckverbinder mit quadratischem Montageflansch - Produktnorm This European Standard was approved by CEN on 6 June 2015. CEN members are boun
7、d to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CE
8、N-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre h
9、as the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, L
10、uxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Bru
11、ssels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4652-312:2015 EBS EN 4652-312:2015EN 4652-312:2015 (E) 2 Contents Page European foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions . 4 4 Required charact
12、eristics 4 5 Test methods 8 6 Qualification . 10 7 Quality assurance . 11 8 Designation . 11 9 Marking 11 10 Packaging . 11 11 Storage 11 BS EN 4652-312:2015EN 4652-312:2015 (E) 3 European foreword This document (EN 4652-312:2015) has been prepared by the Aerospace and Defence Industries Association
13、 of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this European Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. T
14、his European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2016, and conflicting national standards shall be withdrawn at the latest by June 2016. Attention is drawn to the possibility that some of the e
15、lements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this
16、 European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia
17、, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 4652-312:2015EN 4652-312:2015 (E) 4 1 Scope This European Standard specifies the characteristics of screwed on coupling (N interface) coaxial square flange receptacle 50 ohms. The cable to connector assembly is a clamp tech
18、nology. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including a
19、ny amendments) applies. EN 2591 1), Aerospace series Elements of electrical and optical connection Test methods EN 2812, Aerospace series Stripping of electric cables EN 4652-001, Aerospace series Connectors, coaxial, radio frequency Part 001: Technical specification EN 4652-310, Aerospace series Co
20、nnectors, coaxial, radio frequency Part 310: Type 3, N interface Clamp nut assembly version Straight plug Product standard EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts TR 6058, Aerospace series Cable code identification list 2)3 Terms and
21、definitions For the purposes of this document, the terms and definitions given in EN 4652-001 apply. 4 Required characteristics The connection technology shall comply to required tests described in Clause 5. Interface shall comply to EN 4652-001. A self-locking device on plugs shall be proposed if h
22、oles for lockwire do not exist. Water ingress resistance is required in mated conditions for all cable groups. Water ingress resistance is required in unmated condition for cable group A. 1) All parts quoted in this standard. 2) Published as ASD-STAN Technical Report at the date of publication of th
23、is standard. http:/www.asd-stan.org/ BS EN 4652-312:2015EN 4652-312:2015 (E) 5 4.1 Configuration, dimension and mass Mass without heat shrink tubing. See Figure 1 and Table 1. Dimensions in millimetres Key 1 Panel thickness max. 5 2 Marking 3 Flat 10 4 HEX. F Figure 1 N square flange receptacle Mark
24、ing: see Clause 9. Table 1 N square flange receptacle dimensions and mass Cable group A C D E HEX. F Mass (cable jacket) (cable conductor) g max. max. max. max. A 47,2 7,8 2,3 15 12 50,8 B 41,3 5,55 1,4 13 8 41,5 BS EN 4652-312:2015EN 4652-312:2015 (E) 6 4.2 Materials and finish Centre contact : Cop
25、per alloy gold plated over nickel undercoat Insulators . : PTFE Sealings . : Silicone rubber or silicone fluoride Body . : Copper alloy, nickel plated Heat shrink tube . : Polyolefin Rear screw and other parts materials shall have mechanical and electrical characteristics consistent with the require
26、ments of this product standard. 4.3 Temperature Operating temperature shall be between 65 C and 165 C. 4.4 Electrical characteristics Impedance . : 50 Maximum operating frequency : 6 GHz VSWR . : 1,15 up to 6 GHz Insertion loss : 0,04f dB max., f in GHz Contact resistance (initial centre contact) .
27、: 1,5 m max. Insulation resistance . : 5 000 M min. Withstand voltage : 1 500 Veff (at sea level) 4.5 General characteristics Tightening torque of coupling nut . : Not applicable Force to engage or disengage : 0,68 Nm max. Service life . : 500 cycles Retention of centre contact : 27 N min Retention
28、of cable . : see Table 2. BS EN 4652-312:2015EN 4652-312:2015 (E) 7 Table 2 Retention of cable Cable group Retention of cable N min. A 180 B 180 4.6 Admissible cables, tools and stripping lengths See Table 3 to Table 5. Table 3 Stripping lengths Cable group Cable code (see TR 6058) Stripping lengths
29、 mm A KW B KX Table 4 Stripping lengths cable group A A B min. mm max. mm min. mm max. mm 3,6 4,4 8,6 9,4 Table 5 Stripping lengths cable group B A B min. mm max. mm min. mm max. mm 3,6 4,4 7,6 8,4 For stripping, see EN 2812. BS EN 4652-312:2015EN 4652-312:2015 (E) 8 5 Test methods See Table 6. Tabl
30、e 6 Test methods EN 2591- Designation of the test Details 101 Visual examination Applicable 102 Examination of dimensions and mass See 4.1. 201 Contact resistance - low level Applicable on centre contact 202 Contact resistance at rated current 1,5 m max. = initial centre contact, and 2,0 m max. afte
31、r test For nickel plated connectors: 0,4 m max. = initial external contact, and 1,2 m max. after test 204 Discontinuity of contacts in the microsecond range Duration of micro discontinuity: 1 s Method B Test time: throughout duration of tests EN 2591-402 and EN 2591-403. 206 Measurement of insulatio
32、n resistance 5 000 M min. 207 Voltage proof test Method A Pressure Mated aUnmated aSea level 1 500 1 500 12,1 kPa 800 550 4,7 kPa 375 350 2,7 kPa 250 200 aValues in Volts RMS. 212 Surface transfer impedance Applicable (up to 100 MHz) 3 m 1 MHz 1 m 10 MHz 3 m 30 MHz 5 m 100 MHz 214 Lightning strike,
33、current and voltage pulse 10 kA wave form 5 A, 10 A RMS 221 Voltage Standing Wave Ratio (VSWR) Method B VSWR 1,15 up to 6 GHz BS EN 4652-312:2015EN 4652-312:2015 (E) 9 EN 2591- Designation of the test Details 222 Insertion Loss (I.L.) 0,04f dB max., f in GHz Measurement shall be performed with conne
34、ctor mated with EN 4652-310 plug from same technology and cable group. 223 Measurement of characteristic impedance of a coaxial connector or contact 50 5 at 200 MHz Input impedance 224 RF leakage Measured from 2 GHz to 3 GHz. 50 dB for connectors on cable group A 60 dB for connectors on cable group
35、B 225 RF high potential withstanding voltage 1 000 V at 5 MHz 226 Corona level Corona extinction voltage 315 V rms at 4,4 kPa (70000 feet altitude) 303 Cold/low pressure and damp heat Five (5) cycles Minimum temperature 60 C 305 Rapid change of temperature Mated connectors TA= +05165 C; TB= 5065 C.
36、307 Salt mist The connectors shall be suspended in the test chamber with non-metallic cords, so that no accumulation of condensed saline solution can occur. The connectors shall be: subjected to 50 cycles of mating and unmating at a rate 5 cycles/min.; exposed to the salt mist: mated for 240 h Not e
37、xposed to the salt mist: unmated for 48 h. 308 Sand and dust The mated connectors shall be arranged so that their longitudinal axis is parallel to the wind direction, with the rear of the plug facing the wind. Wind velocity in the duct: (3,5 0,5) m/s Number of cycles: one (1) 311 Low air pressure Re
38、fer to test EN 2591-207. BS EN 4652-312:2015EN 4652-312:2015 (E) 10 EN 2591- Designation of the test Details 314 Immersion at low air pressure Specimen without heat shrinkable tube. In unmated condition (applicable only for connectors on cable group A): After the three (3) cycles, remove the specime
39、n from salt water, clean the interface with soft paper. In mated condition (applicable for all connectors): standard procedure. 315 Fluid resistance See EN 4652-001. 317 Flammability Method A 402 Shock Method A, half sine Severity 30 g, duration 11 ms Number of shocks: one (1) in each way for each o
40、f the three (3) axis (six (6) shocks in all) 403 Sinusoidal and random vibration Method A: sinusoidal vibration with the following individual modalities: Level 2 50 Hz to 70 Hz 1,5 mm double amplitude 70 Hz to 2 000 Hz 20 g Three (3) axis or two (2) axis (straight connectors) Duration 4 h per axis a
41、t ambient temperature 404 Transverse load Not applicable 406 Mechanical endurance 500 cycles 408 Mating and unmating forces 0,68 Nm max. 409 Contact retention in insert 27 N min., applicable on cabled specimen 417 Tensile strength (crimped connection) See Table 2. 418 Gauge insertion/extraction forc
42、es (female contacts) Applicable, see EN 4652-001. 422 Locking wire hole strength Not applicable 507 Plating porosity Applicable 508 Measurement of thickness of coating on contacts Applicable 509 Adhesion of coating on contacts Applicable 513 Magnetic permeability 2 6 Qualification Qualification test
43、 programme: see EN 4652-001. BS EN 4652-312:2015EN 4652-312:2015 (E) 11 7 Quality assurance See EN 9133. 8 Designation EXAMPLE Description block CONNECTOR, COAXIAL Identity block EN4652-312A50 Number of the basic standard Connector interface type code (see EN 4652-001) 3 = N Technology of assembly c
44、ode (see EN 4652-001) 1 = clamp Connector model code (see EN 4652-001) 2 = square flange receptacle Cable group code (see Table 3) Impedance: 50 = 50 NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 9 Marking See EN 4652-001. 10 Packaging See EN
45、 4652-001. 11 Storage See EN 4652-001. This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI is incorporated by Royal Charter. British Standards and
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