1、BRITISH STANDARDBS EN 2995-005:2006Aerospace series Circuit breakers, single-pole, temperature compensated, rated current 1 A to 25 A Part 005: With polarized signal contact Product standardThe European Standard EN 2995-005:2006 has the status of a British StandardICS 49.060g49g50g3g38g50g51g60g44g4
2、9g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 2995-005:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on
3、31 January 2007 BSI 2007ISBN 978 0 580 50011 4National forewordThis British Standard was published by BSI. It is the UK implementation of EN 2995-005:2006.The UK participation in its preparation was entrusted by Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology, to P
4、anel ACE/6/-/5, Aerospace Protection for electrical systems.A list of organizations represented on ACE/6/-/5 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Complian
5、ce with a British Standard cannot confer immunity from legal obligations. Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 2995-005August 2006ICS 49.060English VersionAerospace series - Circuit breakers, single-pole, temperaturecompensated, r
6、ated current 1 A to 25 A - Part 005: Withpolarized signal contact - Product standardSrie arospatiale - Disjoncteurs unipolaires compenss entemprature, intensits nominales 1 A 25 A - Partie 005 :Avec contact de signalisation polaris - Norme de produitLuft- und Raumfahrt - Schutzschalter, einpolig,Tem
7、peraturkompensiert, Nennstrme von 1 A bis 25 A -Teil 005: Mit polarisiertem Signalkontakt - ProduktnormThis European Standard was approved by CEN on 5 June 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard t
8、he status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German)
9、. A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark,
10、Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROP
11、ISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 2995-005:2006: E2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Dimensions and mass.4
12、 4 Characteristics.6 5 Designation 11 6 Rated current code 11 7 Delivery codes .11 8 Marking .12 9 Technical specification .12 EN 2995-005:20063 Foreword This European Standard (EN 2995-005:2006) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-S
13、TAN). After enquiries and votes carried out in accordance with the rules of this Association, this 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. This European Standard shall be given the sta
14、tus of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2007, and conflicting national standards shall be withdrawn at the latest by February 2007. Attention is drawn to the possibility that some of the elements of this document may be the
15、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 European Standard: Austria, Belgium
16、, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 2995-005:20064 1 Scope This
17、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 125 C and at a maximum altitude of Z = 22 000 m. These circuits breakers are operated by a push-
18、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 up to the short-circuit current. 2 Normative references The following referenced documents are
19、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 2995-001, Aerospace series Circuit breakers, single-pole, temperature compensated, ra
20、ted current 1 A to 25 A Part 001: Technical specification. EN 3155-016, Aerospace series Electrical contacts used in elements of connection Part 016: Contacts, electrical, male, type A, crimp, class S Product standard. EN 3841-305, Aerospace series Circuit breakers Test methods Part 305: Short-circu
21、it 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, Installing and removal tools, connector electrical contact, type III, class 2, composition C.3)MIL-I-81969/14
22、C, 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, Colors used in Government Procurement. 3 Dimensions and mass 3.1 Dimensional characteristics The circuit breakers do not
23、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 publication of this standard. 2) Published as AECMA Technical Report at the date of publication of this stand
24、ard. 3) Published by: Department of Defense (DOD), the Pentagon, Washington D.C. 20301 USA. EN 2995-005:20065 Key 1 Push button released 9 2 Green colour according to FED-STD-595B No. 34090 Gauge 20 connection pins according to EN3155-016M2018 3 White 10 Indicative value 25 (see note) 4 Marking area
25、, 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 (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
26、 noted in subclause 4.2.4 shall be applied without interfering with the terminal 2 connection. Even if circuit breakers are grouped. EN 2995-005:20066 Figure 1 Configuration Dimensions Tolerances 3.2 Electrical diagram See Figure 2. Terminal No.: 1 and 2: Main contacts 3 and 5: Signal contacts Figur
27、e 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 Mechanical characteristics 4.2.1 Fasteners See EN 6113. 4.2.2 Recommended tightening torque of attaching nut for
28、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 and extraction plastic MIL-I-81969/14-11; metallic MIL-I-81969/1-02. 353521or3521or35Push-button released Push-butt
29、on pressedEN 2995-005:20067 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 2995-001. Low frequencies: 10 gn, see EN 2995-001. 4.2.5.2 Combined test: ambient temperature at 85 C, altitude and
30、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 See EN 2995-001. 4.3.2 Corrosion See EN 2995-001. 4.3.3 Contaminating liquids See EN 2995-001. 4.3.4 Overvoltage cau
31、sed 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 V a.c., 360 Hz to 800 Hz EN 2995-005:20068 4.4.2 Diode of signal contact characteristics Max. current at 125 C: 0,5
32、 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 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
33、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.c., it loses its low current quality. 4.4.4 Minimum and maximum tripping thresholds See Table 3. Table 3 Overload (in %
34、 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 5 105 100 140 125 5 All 100 80 140 4.4.5 Overload trip See Table 4. EN 2995-005:20069 Table 4 Overload (in % of n) 200 500 1 000 Ambien
35、t 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 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
36、 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 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 ope
37、ration (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 breaker, (without bursting, flaming or thick smokes) is allowed even if this destruction happens during the first CO. If
38、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. EN 2995-005:200610 Table 6 Number of operations to be provided No-load Load 5 000 2 500 2 500 2 500 2 500 Main contacts ApplicableResistive Low cur
39、rent 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 ApplicableResistive 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
40、 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 = 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
41、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 resistance According to EN 2995-001, Table 5. EN 2995-005:200611 5 Designation EXAMPLE Description block CIRCUIT BREAKER Identity
42、 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 shall be placed between the description block and the identity block. 6 Rated current code See Table 8. Table 8 Rating current n
43、(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 Connection and attachment hardware kits EN 6113 Delivery conditions Delivery code Kit part-No. aIncluded parts Pieces per part
44、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 washer 1 X aSpare parts could be ordered separately, for information see EN 6113. EN 2995-005:200612 8 Marking As defined on the d
45、rawing and unless otherwise specified by contract, marking shall include: the designation defined in Clause 5 (without delivery hardware code), on the packaging; the manufacture date (year, week); the manufacturers name or trademark; the electrical diagram and the terminal identification; the manufa
46、cturers 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 Techni
47、cal specification See EN 2995-001. EN 2995-005:2006blankBS EN 2995-005:2006BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international l
48、evel. It is incorporated by Royal Charter.RevisionsBritish Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions.It is the constant aim of BSI to improve the quality of our products and services. We would be gr
49、ateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400.BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards.Buying standardsOrders for all B
