1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 2665-004 Edition P 2 June 2012 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATIONAvenue de Tervuren, 270 - B-1150 Brussels - Tel. 32 2 775 8126 - Fax. 32 2 775 8131 - www.asd-stan.orgICS: 49.060 Supersedes edi
2、tion P 1 of June 1994 and will supersede EN 2665-004:1999Descriptors: ENGLISH VERSION Aerospace series Circuit breakers, three-pole, temperature compensated, rated current 20 A to 50 A Part 004: UNC thread terminals Product standard Srie arospatiale Disjoncteurs tripolaires compenss en temprature, i
3、ntensits nominales 20 A 50 A Partie 004 : Bornes filetage UNC Norme de produit Luft- und Raumfahrt Schutzschalter, dreipolig, temperaturkompensiert, Nennstrme von 20 A bis 50 A Teil 004: UNC-Klemmengewinde Produktnorm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of
4、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 following member comments. Subsequent to the publication of this Prestand
5、ard, 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 ASD-STAN, it will be submitted as a draft European Standard (prEN) to
6、 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 of a national standard and by withdrawing any national standards conflicting with the
7、EN. Edition approved for publication 30 June 2012 Comments should be sent within six months after the date of publication to ASD-STAN Electrical Domain Copyright 2012 by ASD-STAN prEN 2665-004:2012 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Terms and definitions .3 4 Dimensi
8、ons and mass .3 5 Characteristics .5 6 Designation 10 7 Rated current code 10 8 Delivery codes 10 9 Marking .11 10 Technical specification .11 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Electrical Domain. After inquiries and votes carried out in accordance w
9、ith the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 2665-004:2012 (E) 3 1 Scope This standard specifies the characteristics of three-pole circuit breakers, temperature compensated with a rated current from 20 A to 50 A, use
10、d in aircraft on-board circuits at a temperature between 55 C and 90 C at an altitude of 15 000 m max. These 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 Norm
11、ative references The following referenced documents 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 2350, Aerospace series Circui
12、t breakers Technical specification EN 2665-001, Aerospace series Circuit breakers, three-pole, temperature compensated, rated currents 20 A to 50 A Part 001: Technical specification EN 3841-305, Aerospace series Circuit breakers Test methods Part 305: Short-circuit performance EN 6113, Aerospace ser
13、ies Circuit breaker, connecting and attachment hardware 1)TR 6083, Aerospace series Cut-outs for installation of electrical components 2)FED-STD-595B, Colors used in Government Procurement 3)3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 2350 apply.
14、4 Dimensions 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. Dimensions are in millimetres with exception terminal thread 8-32 UNC. See Figure 1. 1) Published as ASD-STAN Prestandard
15、 at the date of publication of this standard (www.asd-stan.org). 2) Published as ASD-STAN Technical Report at the date of publication of this standard (www.asd-stan.org). 3) Published by: Department of Defense (DOD), the Pentagon, Washington, D.C. 20301 USA. prEN 2665-004:2012 (E) 4 Key 1 Push butto
16、n released 7 Lock washer 2 Black colour according to FED-STD-595B 8 1,0 max. to 3,0 max. 3 White 9 Positioning lug in accordance with the panel cut-out, asper TR 6083C202 4 Marking, see Clause 6. 5 Push button pressed 10 Rated current marking (white on black) 6 Attachment nut Figure 1 Configuration
17、Dimensions Tolerances prEN 2665-004:2012 (E) 5 4.2 Electrical diagram See Figure 2. Push button released: CB open. Push button pressed: CB closed. Key 1 Load 2 Supply Load and supply can be inverted. Figure 2 Electrical diagram 4.3 Mass 162 g max. (delivery code A including hardware). 4.4 Panel moun
18、ting See EN 2665-001. 5 Characteristics 5.1 Material, surface treatment See EN 2665-001. 5.2 Mechanical characteristics 5.2.1 Fasteners See EN 6113. 5.2.2 Recommended tightening torque of attaching nut for installation (5,25 0,25) Nm prEN 2665-004:2012 (E) 6 5.2.3 Recommended tightening torque of co
19、nnection hardware for installation (2,35 0,15) Nm 5.2.4 Resistance to vibrations 5.2.4.1 Combined test: ambient temperature at 70 C and vibrations Sinusoidal : 10 gn, see EN 2665-001. Random : 5,8 gn, see EN 2665-001. Low frequencies : 10 gn, see EN 2665-001. 5.2.4.2 Combined test: ambient temperatu
20、re at 85 C, altitude and vibrations Sinusoidal: 3 gn, see EN 2665-001. 5.2.5 Resistance to shocks 50 gn, see EN 2665-001. 5.2.6 Mechanical endurance See Table 6. 5.3 Environment characteristics 5.3.1 Humidity See EN 2665-001. 5.3.2 Corrosion See EN 2665-001. 5.3.3 Contaminating liquids See EN 2665-0
21、01. 5.3.4 Overvoltage caused by lightning See EN 2665-001. prEN 2665-004:2012 (E) 7 5.4 Electrical characteristics 5.4.1 Nominal voltage of operational circuits See Table 1. Table 1 Nominal voltage 115/200 V a.c., 360 Hz 800 Hz, three phase 5.4.2 Voltage drop at nSee Table 2. Table 2 Ratings A 20 25
22、 30 35 40 45 50 U max. at n V 0,15 0,15 0,15 0,15 0,12 0,12 0,12 5.4.3 Minimum and maximum tripping thresholds See Table 3. Table 3 Overload (in % of n) Ambient temperatures Ratings Minimum thresholds value 1 h Maximum thresholds value 1 h C A On ground At 15 000 m On ground 23 5 All 110 105 145 55
23、5 110 105 165 70 5 105 100 145 90 5 100 90 145NOTE 1 For detection of minimum threshold, all the poles are connected in series. NOTE 2 For detection of maximum threshold, load value is: increased by about 20 % when one pole is submitted to the load and other poles are not loaded; increased by about
24、10 % when two poles are submitted to the load and the other one is not loaded; not increased when the two other poles are loaded at 0,9 n. prEN 2665-004:2012 (E) 8 5.4.4 Overload trip See Table 4. Table 4 Overload (in % of n) 200 500 1 000 3 poles 1 pole 3 poles 1 pole 3 poles 1 pole Ambient tempera
25、tures C Ratings A Trip time s 23 5 All 2 to 20 2 to 22 0,15 to 4,00 0,15 to 5,20 0,05 to 1,00 0,06 to 1,30 55 5 60 110 90 5 1,5 1,5 NOTE 1 When 3 poles are loaded, they will be connected in series. NOTE 2 When 1 pole is loaded, the two other poles are not loaded. 5.4.5 Short-circuit values See Table
26、 5. Table 5 Nominal voltage 115/200 V a.c., 360 Hz to 800 Hz Prospective currents 0,8 cos 1 2 000 A r.m.s. Test altitudes On the ground and at maximum altitude (15 000 m, 12 100 Pa) Number of operations 1 CO a 2 OCO b aBreak operation (for definition refer to EN 3841-305). bMake operation (for defin
27、ition refer to EN 3841-305). prEN 2665-004:2012 (E) 9 5.4.6 No-load and load endurance See Table 6. Table 6 Number of operations to be provided No-load Load5 000 2 500 All ratings Main contacts Applicable Inductive 0,6 cos 0,7 n, 115/200 V a.c. - 360 Hz to 800 Hz NOTE 1 One operation corresponds to
28、one closing one opening. NOTE 2 Tolerances 5 % 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 A1, B1, C1 with attachment 1 500 V 400 V A1, A2 with B1, B2 and C1, C2 B1, B2 with A1, A2 and C1, C2 Open position Z 0 m Z 15 000 m
29、 A1, B1, C1 with A2, B2, C2 1 500 V 400 V A1, B1, C1, A2, B2, C2 with attachment A1, A2 with B1, B2 and C1, C2 B1, B2 with A1, A2 and C1, C2 5.4.8 Insulation resistance According to EN 2665-001, Table 5. prEN 2665-004:2012 (E) 10 6 Designation EXAMPLE Description block CIRCUIT BREAKER Identity block
30、 EN2665-004D20AA Number of this standard Design code, D: black button Rated current code (see Table 8) Delivery hardware code A (see Table 9) NOTE If necessary, the code I9005 shall be placed between the description block and the identity block. 7 Rated current code See Table 8. Table 8 Ratings n20
31、25 30 35 40 45 50 Marking on actuator 20 25 30 35 40 45 50 Rated current code (A) 20 25 30 35 40 45 50 8 Delivery codes See Table 9. Table 9 Delivery hardware code Connection and attachment hardware kits EN 6113 Delivery conditions Kit part-No. aIncluded parts Pieces per part Fitted Supplied separat
32、ely A EN 6113C Connecting screw 6 X Connecting lock washer 6 Attachment nut 1 Attachment lock washer 1 B EN 6113B Attachment nut 1 X Attachment lock washer 1 aSpare parts could be ordered separately, informations see EN 6113. prEN 2665-004:2012 (E) 11 9 Marking As defined on the drawing and unless o
33、therwise specified by contract, marking shall include: the designation defined in Clause 6 on the packaging; the manufacture date (year, week): YYWW the manufacturers name or trademark; the electrical diagram and the terminal identification; the manufacturers part number. 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 2665-001.
