1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM ASD-STAN prEN 4838-004 Edition P 1 September 2016 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Rue Montoyer 10 - 1000 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.org ICS: Descriptors: EN
2、GLISH VERSION Aerospace series Arc Fault Circuit breakers, single-pole, temperature compensated, rated current 3 A to 25 A 115 V a.c. 400 Hz constant frequency Part 004: With signal contact Product standard Luft- und Raumfahrt Arc Fault Schutzschalter, einpolig, Temperaturkompensiert, Nennstrme von
3、3 A bis 25 A 115 V a.c. 400 Hz Konstantfrequenz Teil 004: Mit Signalkontakt Produktnorm Srie arospatiale Disjoncteurs unipolaires dtection darc compenss en temprature, intensits nominales 3 A 25 A 115 V a.c. 400 Hz frquence fixe Partie 004 : Avec contact de signalisation Norme de produit This “Aeros
4、pace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence 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 fo
5、llowing 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 o
6、f ASD-STAN, the ASD-STAN prEN will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) 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
7、of a national standard and by withdrawing any national standards conflicting with the EN. ASD-STAN Technical Committee approves that: “This document is published by ASD-STAN for the needs of the European Aerospace Industry. The use of this standard is entirely voluntary, and its applicability and su
8、itability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” ASD-STAN reviews each standard and technical report at least every five years at which time it may be revised, reaffirmed, stabilized or cancelled. ASD-STAN invites you to
9、send your written comments or any suggestions that may arise. All rights reserved. No parts of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission
10、 of ASD-STAN. Order details: E-mail: salesasd-stan.org Web address: http:/www.asd-stan.org/ Edition approved for publication 1st September 2016 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyright 2016 ASD-STAN prEN 4838-004:2016 (E) 2 Conte
11、nts Page Foreword 2 1 Scope 3 2 Normative references 3 3 Terms and definitions . 3 4 Dimension and mass 3 5 Characteristics . 6 6 Designation. 10 7 Rated current code 10 8 Delivery hardware codes 10 9 Marking 11 10 Technical Specification 11 Foreword This standard was reviewed by the Domain Technica
12、l 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 Publication. prEN 4838-004:2016 (E) 3 1 Scope This standard specifies the required charact
13、eristics for single-pole, arc fault circuit breakers rated currents from 3 A to 25 A, switching capacity 65 In, for use in aircraft electrical systems. Their operating temperatures are between 40 C to 85 C at a maximum altitude of Z = 15 000 m. The thermal protection is temperature compensated and o
14、perates between 55 C and 125 C. These arc fault circuit breakers are operated by a push-pull type single pushbutton (actuator), with delayed action “trip-free“ tripping. They will continue to function up to the short-circuit current. 2 Normative references The following documents, in whole or in par
15、t, 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 any amendments) applies. EN 3155-016, Aerospace series Electrical contacts
16、used in elements of connection Part 016: Contacts, electrical, male, type A, crimp, class S Product standard EN 3841-100, Aerospace series Circuit breakers Test Methods Part 100: General EN 4838-001, Aerospace series Arc Fault Circuit breakers, single-pole, temperature compensated, rated current 3 A
17、 to 25 A 115 V a.c. 400 Hz constant frequency Part 001: Technical specification EN 6113, Aerospace series Circuit breaker, connecting and attachment hardware TR 6083, Aerospace series Cut-outs for installation of electrical components 1) MIL-I-81969/1-02, Installing and removal tools, connector elec
18、trical contact, Type III, Class 2, composition C 2) MIL-I-81969/14-11, Installing and removal tools, connector electrical contact, Type III, Class 2, composition B 2) FED-STD-595B, Colours used in Government Procurement 3 Terms and definitions For the purposes of this document, the terms and definit
19、ions given in EN 3841-100 apply. 4 Dimension and mass 4.1 Dimensional characteristics The circuit breakers do not have to correspond to the pictorial illustration, only the dimensions given shall be adhered to. See Figure 1. Dimensions are in millimetres with exception terminal thread 8-32 UNC. 1) P
20、ublished as ASD-STAN Technical Report at the date of publication of this standard by Aerospace and Defense industries Association of European-Standardization (ASD-STAN) (www.asd-stan.org) 2) Published by: DoD National (US) Mil. Department of Defense http:/www.defenselink.mil/ prEN 4838-004:2016 (E)
21、4 Key 1 Push button released 9 Gauge 20 connection pins according to EN 3155-016M2018 (terminals 3 and 4) 2 Green colour according to FED-STD-595B No. 34090 10 Indicative value 25 (see Note) 3 White 11 Positioning lug in accordance with the panel cut-out, as per TR 6083C202. Neutral connection 4 Mar
22、king area, see Clause 9. 12 Rated current marking (white on green) 5 Push button pressed 13 Terminals shape free 6 Attachment nut 14 LED indicator AlInGap 592 nm Amber colour 0,65 mm diameter 7 Lockwasher 15 Neutral via panel conductive metal plate interconnected to terminal 6 8 1,0 to 3,0 max. 16 G
23、auge 20 connection pins according to EN 3155-016M2018 (terminal 6) F1 and F2: see EN 4838-001, Table 3. NOTE Tools noted in 5.2.4 shall be applied without interfering with the terminal 2 connection. Even if the circuit breakers are grouped. Figure 1 Configuration Dimensions Tolerances prEN 4838-004:
24、2016 (E) 5 4.2 Electrical diagram See Figure2. Push button released: CB is open, signal contact is closed. Push button pressed: CB is closed, signal contact is open. Terminal No. : 1 and 2: Main contacts 1 = Supply and 2 = Load (see Table 1 of EN 4838-001) 3 and 4: Signal contacts 6: Neutral connect
25、ion via Gauge 20 connection pins according to EN 3155-016M2018 (see Figure 1) Figure 2 Electrical diagram 4.3 Mass Maximum mass: 35 g (including hardware delivery code A). 4.4 Panel mounting Panel cut-out : The panel cut-out is in accordance with the designation TR 6083C202 Spacing : 20 mm horizonta
26、l and 35 mm vertical from the centre of the mounting holes. Panel thickness : 1 mm to 3 mm The metallic front plate of the breaker (mark 15 on Figure 1) is an electrical connection to neutral. For this purpose the panel mounting means must ensure a good electrical continuity to neutral. In case of p
27、anel isolated from neutral a rear wire can be used to connect neutral to terminal 6 (see Figure 1). prEN 4838-004:2016 (E) 6 5 Characteristics 5.1 Material, surface treatment See EN 4838-001. 5.2 Mechanical characteristics 5.2.1 Fasteners See EN 6113. 5.2.2 Recommended tightening torque of attaching
28、 nut for installation (4,0 0,25) N.m. 5.2.3 Recommended tightening torque of connection hardware for installation (1,6 0,1) N.m. 5.2.4 Recommended tools for contacts of auxiliary contact insertion and extraction plastic MIL-I-81969/14-11 metallic MIL-I-81969/1-02 5.2.5 Resistance to vibrations 5.2.5
29、.1 Combined test: ambient temperature at 70 C and vibrations Sinusoidal: 10 g-PK, see EN 4838-001. Random: 5,8 Grms, see EN 4838-001. Low frequencies: 10 g-PK, see EN 4838-001. 5.2.5.2 Combined test: ambient temperature at 85 C, altitude and vibrations Sinusoidal: 3 g-PK, see EN 4838-001. 5.2.6 Resi
30、stance to shocks 50 g-PK, see EN 4838-001. 5.2.7 Mechanical endurance See Table 6. 5.3 Environment characteristics 5.3.1 Humidity See EN 4838-001. 5.3.2 Corrosion See EN 4838-001. prEN 4838-004:2016 (E) 7 5.3.3 Contaminating liquids See EN 4838-001. 5.3.4 Susceptibility towards electrical perturbati
31、ons See EN 4838-001. 5.4 Electrical characteristics 5.4.1 Nominal voltage of operational circuits See Table 1. Table 1 Nominal voltage 115 V a.c., 400 Hz constant frequency 5.4.2 Voltage drop at In and low current See Table 2. Table 2 Ratings A 3 5 7,5 10 15 20 25 U max. at In V 0,55 0,35 0,30 0,30
32、0,25 0,25 0,20 U max. at I= 100 mA (mV) 18 8 4 2,5 2,5 2,5 2,5 NOTE The test shall be performed when the contact is established (no switching). 5.4.3 Minimum and maximum tripping thresholds See Table 3. Table 3 Overload (in % of In) Ambient temperatures C Ratings Minimum thresholds value 1 h Maximum
33、 thresholds value 1 h On ground At 15 000 m On ground 23 5 All 115 105 140 55 5 115 105 160 70 5 105 100 140 125 5 100 80 140 prEN 4838-004:2016 (E) 8 5.4.4 Overload trip See Table 4. Table 4 Overload (in % of In) 200 500 1 000 Ambient Temperatures C Ratings A Trip time S 23 5 3 2 to13 0,15 to 2,50
34、0,035 to 0,600 5 to 15 4 to18 20 to 25 6 to 20 55 5 All 40 125 5 1,5 0,005 to 2,50 5.4.5 Short-circuit values See Table 5. Table 5 Nominal voltage 115 V a.c., 400 Hz Prospective currents 0,8 cos 1 65 In or 1 000 A r.m.s. (value the most favourable) Test altitudes On the ground and at maximum altitud
35、e 15 000 m (14 000 Pa) Number of operations 1 CO a 2 OCO b 1 CO 2 OCO a Removal of short-circuit b Application of a short-circuit prEN 4838-004:2016 (E) 9 5.4.6 No-load and load endurance See Table 6. Table 6 Number or operations to be provided No-load Load 5 000 2 500 All ratings Main contacts Appl
36、icable Inductive 0,6 cos 0,7 In, at 115 V a.c. - 400 Hz Signal contacts Applicable Resistive 0,5 A, 28 V d.c. Resistive 3 mA, 28 V d.c. Resistive 3 mA, 5 V d.c. Lamp 0,2A, 28 V d.c. Lamp 0,23A, 5 V a.c. NOTE 1 One operation consists of one closing and one opening of the contacts NOTE 2 Tolerances 5
37、% on current, voltage and frequency values. 5.4.7 Dielectric rigidity See Table 7. Table 7 Closed position Z = 0 m Z = 15 000 m 1 and 2 with 3 and 4 1 500 V a.c. 50 Hz 400 V a.c. 50 Hz NOTE Pass criteria is leakage current 100 M. 5.5 Arc fault performance Test according to EN 4838-001. prEN 4838-004
38、:2016 (E) 10 6 Designation EXAMPLE Description block CIRCUIT BREAKER Identity block EN4838-004-20A-B Number of this standard Rated current code, see Table 9 Delivery hardware code B, see Table 10 NOTE If necessary, the code I9005 shall be placed between the description block and the identity block.
39、7 Rated current code See Table 9. Table 9 Ratings In 3 5 7,5 10 15 20 25 Marking on actuator 3 5 7 10 15 20 25 Rated current code 03A 05A 7A5 10A 15A 20A 25A 8 Delivery hardware codes See Table 10. Table 10 Delivery hardware code Connection and attachment hardware kits EN 6113 Delivery conditions Ki
40、t part-No. a Included parts Pieces per part Fitted Supplied separately A EN 6113A1 Connecting screw 2 X Connecting lock washer 2 Attachment nut 1 Attachment lock washer 1 B EN 6113B1 Attachment nut 1 X Attachment lock washer 1 a Spare parts could be ordered separately, informations see EN 6113. prEN
41、 4838-004:2016 (E) 11 9 Marking As defined on the drawing and unless otherwise specified by contract, marking shall include: the designation defined in Clause 6 (without delivery hardware code), on the packaging; the manufacturing date (year, week): YYWW; the manufacturers name or trademark; the ele
42、ctrical diagram and the terminal identification; the manufacturers part number. the software and hardware version code NOTE The marking could be combined on the both opposite faces. For electrical diagram and/or terminal identification refer to the Figure 1. 10 Technical Specification See EN 4838-001.
