ASD-STAN PREN 2995-005-2005 Aerospace Series Circuit Breakers Single-Pole Temperature Compensated Rated Current 1 A to 25 A Part 005 With Polarized Signal Contact Product Standard .pdf

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1、AECMA STANDARD NORME AECMA AECMA NORM prEN 2995-005 Edition P 3 May 2005 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES - STANDARDIZATION Gulledelle 94 - B-1200 Brussels - Tel. + 32 2 775 8110 - Fax. + 32 2 775 8111 - www.aecma-stan.orgICS: 49.060 Supersedes edition P 2 January 1999 D

2、escriptors: ENGLISH VERSION Aerospace series Circuit breakers, single-pole, temperature compensated, rated current 1 A to 25 A Part 005: With polarized signal contact Product standard Srie arospatiale Disjoncteurs unipolaires compenss en temprature, intensits nominales 1 A 25 A Partie 005 : Avec con

3、tact de signalisation polaris Norme de produit Luft- und Raumfahrt Schutzschalter, einpolig, Temperaturkompensiert, Nennstrme von 1 A bis 25 A Teil 005: Mit polarisiertem Signalkontakt Produktnorm This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA-STAN (The Europ

4、ean Association of Aerospace Industries - 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 sh

5、all 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 AECMA-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee fo

6、r 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 EN. Edition approved for pu

7、blication 31 May 2005 Comments should be sent within six months after the date of publication to AECMA-STAN Electrical Domain Copyright 2005 by AECMA-STAN prEN 2995-005:20052 Foreword This standard was reviewed by the Domain Technical Coordinator of AECMA-STANs Electrical Domain. After inquiries and

8、 votes carried out in accordance with the rules of AECMA-STAN defined in AECMA-STANs General Process Manual, this standard has received approval for Publication. Contents Page 1 Scope 3 2 Normative references. 3 3 Dimensions and mass. 3 4 Characteristics. 5 5 Designation 10 6 Rated current code 10 7

9、 Delivery codes 10 8 Marking. 11 9 Technical specification 11 prEN 2995-005:20053 1 Scope This standard specifies the characteristics of single-pole circuit breakers, temperature compensated with a rated current from 1 A to 25 A, used in aircraft on-board circuits at a temperature between 55 C and 1

10、25 C and at a maximum altitude of Z = 22 000 m. These circuits breakers are operated by a push-pull type single push button (actuator), with delayed action “trip-free“ tripping with a polarized signal contact which is open when main contacts are closed, and inversely. They will continue to function

11、up to the short-circuit current. 2 Normative 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) ap

12、plies. EN 2995-001, Aerospace series Circuit breakers, single-pole, temperature compensated, rated current 1 A to 25 A Part 001: Technical specification. 1)EN 3155-016, Aerospace series Electrical contacts used in elements of connection Part 016 : Contacts, electrical, male, type A, crimp, class S P

13、roduct standard.1)EN 3841-305, Aerospace series Circuit breakers Test methods Part 305: Short-circuit performance. EN 6113, Aerospace series Circuit breaker, connecting and attachment hardware. 1)TR 6083, Aerospace series Cut-outs for installation of electrical components. 2)MIL-I-81969/1A, Installi

14、ng and removal tools, connector electrical contact, type III, class 2, composition C. 3)MIL-I-81969/14C, Installing and removal tools, connector electrical contact, type III, class 2, composition B. 3)MIL-S-19500, Semiconductor device, diode, silicon, fast recovery.3)FED-STD-595B, Colours used in Go

15、vernment Procurement. 3 Dimensions and mass 3.1 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. See Figure 1. 1) Published as AECMA Prestandard at the date of publi

16、cation of this standard. 2) Published as AECMA Technical Report at the date of publication of this standard. 3) Published by: Department of Defense (DOD), the Pentagon, Washington D.C. 20301 USA. prEN 2995-005:20054 Key 1 Push button released 9 2 Green colour according to FED-STD-595B No. 34090 Gaug

17、e 20 connection pins according to EN3155-016M2018 3 White 10 Indicative value 25 (see note) 4 Marking area, see Clause 8. 11 Marking, see Clause 6. 5 Push button pressed 12 6 Attachment nut Positioning lug in accordance with the panel cut-out, as per TR6083C202 7 Lockwasher 13 Rated current marking

18、(white on green) 8 1,0 to 3,0 max. 14 Terminals shape free F1 and F2: see EN 2995-001, Table 3. NOTE Tools noted in subclause 4.2.4 shall be applied without interfering with the terminal 2 connection. Even if circuit breakers are grouped. Figure 1 Configuration - Dimensions - Tolerances prEN 2995-00

19、5:20055 3.2 Electrical diagram See Figure 2. Terminal No. : 1 and 2: Main contacts 3 and 5: Signal contacts Figure 2 Electrical diagram 3.3 Mass 28 g max. (delivery code A including hardware). 3.4 Panel mounting See EN 2995-001. 4 Characteristics 4.1 Material, surface treatment See EN 2995-001. 4.2

20、Mechanical characteristics 4.2.1 Fasteners See EN 6113. 4.2.2 Recommended tightening torque of attaching nut for installation (4,75 0,25) Nm 4.2.3 Recommended tightening torque of connection hardware for installation (1,6 0,1) Nm 4.2.4 Recommended tools for contacts of auxiliary contact insertion an

21、d extraction plastic MIL-I-81969/14-11; metallic MIL-I-81969/1-02. 353521or3521or35Push-button released Push-button pressedprEN 2995-005:20056 4.2.5 Resistance to vibrations 4.2.5.1 Combined test: ambient temperature at 70 C and vibrations Sinusoidal: 10 gn, see EN 2995-001. Random: 5,8 gn, see EN 2

22、995-001. Low frequencies: 10 gn, see EN 2995-001. 4.2.5.2 Combined test: ambient temperature at 85 C, altitude and vibrations Sinusoidal: 3 gn, see EN 2995-001. 4.2.6 Resistance to shocks 50 gn, see EN 2995-001. 4.2.7 Mechanical endurance See Table 6. 4.3 Environment characteristics 4.3.1 Humidity S

23、ee EN 2995-001. 4.3.2 Corrosion See EN 2995-001. 4.3.3 Contaminating liquids See EN 2995-001. 4.3.4 Overvoltage caused by lightning See EN 2995-001. 4.4 Electrical characteristics 4.4.1 Nominal voltages of main contacts See Table 1. Table 1 28 V d.c. 26 V a.c., 360 Hz to 800 Hz Nominal voltages 115

24、V a.c., 360 Hz to 800 Hz prEN 2995-005:20057 4.4.2 Diode of signal contact characteristics Max. current at 125 C : 0,5 A. Peak repetitive reversal voltage: 800 V min. Quality standard: JANTX according to MIL-S-19500. 4.4.3 Voltage drop at nand at low current See Table 2. Table 2 Ratings A 1 2 2,5 3

25、5 7,5 10 15 20 25 U max. at n V 1,10 0,75 0,70 0,55 0,35 0,30 0,30 0,25 0,25 0,20 U max. at = 100mA mV 110 40 30 18 8 4 3 2,5 2,5 2,5 Signal circuit : 28 V d.c.; I = 3 mA : U 1,0 V. NOTE When a signal contact has been operated with a power greater than 60 mW and/or with a voltage higher than 28 V d.

26、c., it loses its low current quality. 4.4.4 Minimum and maximum tripping thresholds See Table 3. Table 3 Overload (in % of n) Minimum thresholds value 1 h Maximum thresholds value 1 h Ambient temperatures C Ratings On ground At 22 000 m On ground 23 5 115 105 140 55 5 115 105 160 70 5 105 100 140 12

27、5 5 All 100 80 140 4.4.5 Overload trip See Table 4. prEN 2995-005:20058 Table 4 Overload (in % of n) 200 500 1 000 Ambient temperatures C Ratings A Trip time s 1 to 3 2 to 13 5 to 15 4 to 18 23 5 20 to 25 6 to 20 55 5 40 125 5 All 1,5 0,15 to 2,50 0,035 to 0,600 4.4.6 Short-circuit values See Table

28、5. Table 5 Nominal voltage 28 V d.c. 115 V a.c., 360 Hz to 800 Hz 0,8 cos 1 Prospective currents 4 000 A L/R 1 ms 1 800 A r.m.s. 1 500 A r.m.s. 1 100 A r.m.s. Test altitudes On the ground and at maximum altitude 22 000 m (4 000 Pa) On the ground and at cabin maximum altitude (4 600 m, 57 400 Pa) At

29、maximum altitude (22 000 m,4 000 Pa) Number of operations CO a+ 2 OCO bSee note. 1 CO a+ 2 OCO b1 CO a+ 2 OCO baBreak operation (for definition see EN 3841-305). bMake operation (for definition see EN 3841-305). NOTE For the test at 1 800 A, an opening of the circuit by a destruction of the circuit

30、breaker, (without bursting, flaming or thick smokes) is allowed even if this destruction happens during the first CO. If the product passes 1 CO + 2 OCO at 1 800 A/115 V a.c., tests at 1 100 A and 1 500 A will not be necessary. 4.4.7 No-Load and load endurance See Table 6. prEN 2995-005:20059 Table

31、6 Number of operations to be provided No-load Load 5 000 2 500 2 500 2 500 2 500 Main contacts Applicable Resistive Low current 100 mA, 28 V d.c.(rating 3 A) Inductive 0,6 cos 0,7n, 115 V a.c. - 360 Hz to 800 Hz Resistive n, 28 V d.c. Inductive L/R = 5 ms n, 28 V d.c. All ratings Signal contacts App

32、licable Resistive 0,5 A, 28 V d.c. Resistive 3 mA, 8 V d.c Resistive 3 mA, 5 V d.c Lamp 0,2 A, 28 V d.c.NOTE 1 One operation corresponds to one closing and one opening. NOTE 2 Tolerances 5 % on current, voltage and frequency values. 4.4.8 Dielectric rigidity See Table 7. Table 7 Closed position Z =

33、0 m Z = 22 000 m 1 and 2 with attachment 1 and 2 with 3 1 and 2 with 5 1 500 V 400 V 3 with 5 3 and 5 with attachment 500 V 150 V Open position Z = 0 m Z = 22 000 m 1 with 2 1 and 2 with attachment 3 and 5 with 1 3 and 5 with 2 1 500 V 400 V 3 and 5 with attachment 500 V 150 V 4.4.9 Insulation resis

34、tance According to EN 2995-001, Table 5. prEN 2995-005:200510 5 Designation EXAMPLE Description block CIRCUIT BREAKER Identity block EN2995-005A20AA Number of EN standard Design code, A: green button Rated current code (see Table 8) Delivery code A (see Table 9) NOTE If necessary, the code I9005 sha

35、ll be placed between the description block and the identity block. 6 Rated current code See Table 8. Table 8 Rating current n (A) 1 2 2,5 3 5 7,5 10 15 20 25 Marking on actuator 1 2 2 3 5 7 10 15 20 25 Rated current code 01A 02A 2A5 03A 05A 7A5 10A 15A 20A 25A 7 Delivery codes See Table 9. Table 9 C

36、onnection and attachment hardware kits EN 6113 Delivery conditions Delivery code Kit part-No. aIncluded parts Pieces per part Fitted Supplied separately Connecting screw 2 Connecting lock washer 2 Attachment nut 1 A EN6113A1 Attachment lock washer 1 X Attachment nut 1 B EN6113B1 Attachment lock wash

37、er 1 X aSpare parts could be ordered separately, informations see EN 6113. prEN 2995-005:200511 8 Marking As defined on the drawing and unless otherwise specified by contract, marking shall include: the designation defined in Clause 5 (without delivery hardware code), on the packaging; the manufactu

38、re date (year, week); the manufacturers name or trademark; the electrical diagram and the terminal identification; the manufacturers part number (corresponding to the part number which includes connection and attachment hardware supplied separately in a bag). NOTE The marking could be on both opposite sides. For electrical diagram printed on the circuit breaker and/or terminal identification numbers see Figure 1. 9 Technical specification See EN 2995-001.

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