1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58overcurrent protection for household and similar installations Part 2: Circuit-breakers for a.c and
2、 d.c. operationThe European Standard EN 60898-2:2006 has the status of a British StandardICS 29.120.50Electrical accessories Circuit-breakers for BRITISH STANDARDBS EN 60898-2:2006Including Corrigendum No. 1BS EN 60898-2:2006This British Standard was published under the authority of the Standards Po
3、licy and Strategy Committee on 31 October 2006 BSI 2006ISBN 0 580 49325 3Amendments issued since publicationAmd. No. Date Comments16750 Corrigendum No. 131 October 2006 Correction to national forewordits secretary.This publication does not purport to include all the necessary provisions of a contrac
4、t. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard was published by BSI. It is the UK implementation of EN 60898-2:2006. It was derived by CENELEC from IEC 60898-2:2006. It super
5、sedes BS EN 60898-2:2001 which will be withdrawn on 1 June 2010.The UK participation in its preparation was entrusted by Technical Committee PEL/23, Electrical accessories, to Subcommittee PEL/23/1, Circuit breakers and similar equipment for household use.A list of organizations represented on PEL/2
6、3/1 can be obtained on request to EUROPEAN STANDARD EN 60898-2 NORME EUROPENNE EUROPISCHE NORM August 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stas
7、sart 35, B - 1050 Brussels 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60898-2:2006 E ICS 29.120.50 Supersedes EN 60898-2:2001English version Electrical accessories Circuit-breakers for overcurrent protection for househol
8、d and similar installations Part 2: Circuit-breakers for a.c. and d.c. operation (IEC 60898-2:2000 + A1:2003, modified) Petit appareillage lectrique Disjoncteurs pour la protection contre les surintensits pour installations domestiques et analogues Partie 2: Disjoncteurs pour le fonctionnement en co
9、urant alternatif et en courant continu (CEI 60898-2:2000 + A1:2003, modifie) Elektrisches Installationsmaterial Leitungsschutzschalter fr Hausinstallationen und hnliche Zwecke Teil 2: Leitungsschutzschalter fr Wechsel- und Gleichstrom (AC und DC) (IEC 60898-2:2000 + A1:2003, modifiziert)This Europea
10、n Standard was approved by CENELEC on 2005-06-01. CENELEC members are bound 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 c
11、oncerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC 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 CENELEC member i
12、nto its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Ital
13、y, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 60898-2:2006 Foreword The text of the International Standard IEC 60898-2:2000 + A1:2003, together with common modifications prepared
14、by the Technical Committee CENELEC TC 23E, Circuit breakers and similar devices for household and similar applications, was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 60898-2 on 2005-06-01. This European Standard supersedes EN 60898-2:2001. The following dates wer
15、e fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2007-03-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2010-06-01 In this European Standard the com
16、mon modifications to the International Standard are indicated by a vertical line in the left margin of the text. This Part 2 is to be used in conjunction with EN 60898-1:2003 + corrigendum February 2004 + A1:2004. When a particular subclause of Part 1 is not mentioned in this Part 2, that subclause
17、applies as far as is reasonable. Where this Part 2 states “addition“, “modification“ or “replacement“, the relevant text of Part 1 is to be adapted accordingly. In this standard, the following print types are used: - requirements: roman type; - test specifications: italic type; - notes: smaller roma
18、n type. _ 2 EN 60898-2:2006 1 Scope and object This clause of Part 1 is applicable except as follows: Addition at the end of the first paragraph: This standard gives additional requirements for single- and two-pole circuit-breakers which, in addition to the above characteristics, are suitable for op
19、eration with direct current, and have a rated d.c. voltage not exceeding 220 V for single-pole and 440 V for two-pole circuit-breakers, a rated current not exceeding 125 A and a rated d.c. short-circuit capacity not exceeding 10 000 A. NOTE This standard applies to circuit-breakers able to make and
20、break both a.c. current and d.c. current. Delete the last two paragraphs. 2 Normative references This clause of Part 1 applies. 3 Definitions Clause 3 of Part 1 applies with the following modification: Addition: 3.5.10.3 time constant the rise time T = L/R (ms) of a prospective direct current to rea
21、ch a value of 0,63 times the maximum peak current 4 Classification Clause 4 of Part 1 applies with the following modifications: 4.1 According to the number of poles Replacement: single-pole circuit-breakers; two-pole circuit-breakers with two protected poles. 4.5 According to the instantaneous tripp
22、ing current (see 3.5.17) Delete D-Type. Addition: 4.7 According to the time constant Circuit-breakers suitable for d.c. circuits with a time constant of T 4 ms. Circuit-breakers suitable for d.c. circuits with a time constant of T 15 ms. NOTE It is assumed that short-circuit currents of 1 500 A are
23、not exceeded in installations in which, due to the loads connected, time constants in normal service up to 15 ms can occur. Where higher short-circuit currents may occur, the time constant of T = 4 ms is considered sufficient. 3 EN 60898-2:2006 5 Characteristics of circuit-breakers Clause 5 of Part
24、1 applies with the following modification: 5.3.1 Standard values of rated voltage Replacement: The standard values of rated voltages are given in Table 1. Examples of connections of circuit-breakers in d.c. systems are given in Figure 18. Table 1 Standard values of rated voltage AC DCaCircuit-breake
25、rs AC circuit supplying the circuit-breaker Rated voltage a.c. Rated voltage d.c. DC wiring examples Single phase (phase to neutral or phase to phase) 230 V 220 V Single-pole Single phase (phase to neutral) or three-phase, using 3 single-pole circuit-breakers (3-wire or 4-wire) (230/400) V 220 V Fig
26、ure 18a Two-pole Single phase (phase to phase) 400 V (220/440) V Figures 18b, 18c, 18d Applicable for d.c. voltages: aThe rated voltage per pole shall not exceed 220 V d.c. Applicable for a.c. voltages: NOTE 1 In IEC 60038 the network voltage value of (230/400) V has been standardized. This value sh
27、ould progressively supersede the values of (220/380) V and (240/415) V. NOTE 2 Wherever in this standard there is a reference to 230 V or 400 V, it may be read as 220 V or 240 V, and 380 V or 415 V respectively. NOTE 3 Circuit-breakers complying with the requirements of this standard may be used in
28、IT systems. Two-pole circuit breakers rated 230 V may have one or two protected poles. Two-pole circuit breakers rated 400 V shall have two protected poles. Three-pole circuit breakers shall have three protected poles. Four-pole circuit breakers may have three or four protected poles. The manufactur
29、er shall declare in his literature the minimum voltage for which the circuit-breaker is designed. Relevant tests are under consideration. 4 EN 60898-2:2006 5.3.5 Standard ranges of instantaneous tripping Replacement of Table 2: Table 2 Ranges of instantaneous tripping Type Ranges for a.c. Ranges for
30、 d.c. B Above 3 Inup to and including 5 InAbove 4 Inup to and including 7 InC Above 5 Inup to and including 10 InAbove 7 Inup to and including 15 In6 Marking and other product information Clause 6 of Part 1 applies with the following modifications: 6.1 Standard marking Replacement: c) rated a.c. vol
31、tage with the symbol and rated d.c. voltage with the symbol ; d) rated current without symbol “A“, preceded by the symbol of instantaneous tripping (B or C), for example B 16; f) rated short-circuit capacity for a.c. and d.c. in amperes in one rectangle, without the symbol A, if valid for both a.c.
32、and d.c. (see example 1 below). If the rated short-circuit capacity is different for a.c. and d.c. this shall be indicated in two adjacent rectangles, without the symbol A, with the symbol near the rectangle containing the a.c. value and with the symbol near the rectangle containing the d.c. value (
33、see example 2 below); Addition: l) time constant T15 within a rectangle, if applicable, associated with the marking for the short-circuit capacity at the time constant of 15 ms (see example 3 below). Replacement of the first paragraph after l): If, for small devices, the space available does not all
34、ow all the above data to be marked, at least the information under c) and d) shall be marked and visible when the circuit-breaker is installed. The information under a), b), c), f), g) and j) may be marked on the side or on the back of the device and be visible only before the device is installed. A
35、lternatively, the information under g) may be on the inside of any cover which has to be removed in order to connect the supply wires. Any remaining information not marked shall be given in the manufacturers literature. EXAMPLE 1 6 000 EXAMPLE 2 10 000 6 000 EXAMPLE 3 1 500 T15 The terminals shall b
36、e marked with + or if necessary. Additionally, arrows indicating the direction of the current are allowed. 5 EN 60898-2:2006 6.3 Guidance table for markingReplacement: Markingsmaybeon thecircuit-breakeritself Product information in catalogueMarking and otherproductinformationEach circuit-breakershal
37、l be marked in a durable mannerwith all or, forsmall apparatus, part ofthefollowingdata:If, for small devicesthe space availabledoes not allowall theabove data to bemarked, at least thisinformation shall bemarked and visiblewhen the deviceisinstalled. This informationmaybe marked onthe sideoronthe b
38、ack of the deviceand be visible onlybeforethedeviceisinstalled. Alternativelytheinformation maybeon the inside of anycoverwhich has tobe removed in orderto connect the supplywires.Any remaining information notmarked shall begiveninthe manufacturerscatalogues.a) manufacturersnameortrademark X b) type
39、 designation,catalogue number or serialnumber X c)rated a.c.voltage with thesymboland ratedd.c.voltage withthesymbol. X d) rated currentwithoutsymbol“A“preceded by the symbolofovercurrentinstantaneous tripping (Bor C),for exampleB16 X e) rated frequency ifthe circuit-breaker isdesigned onlyfor one f
40、requency (see5.3.3) X f)rated short-circuitcapacity for a.c.and d.c.in amperesin one rectangle,withoutthe symbolA,ifvalid for both a.c.and d.c.(see example 1 in 6.1).Iftherated short-circuitcapacity isdifferentfor a.c.and d.c.thisshallbeindicated intwo adjacentrectangles,withoutthe symbolA,with the
41、symbolnear the rectangle containing the a.c.value and with the symbolnear therectangle containing the d.c.value (seeexample 2 in 6.1) X ag) wiring diagram,unlessthe correctmodeofconnectionisevidentX X h) reference calibration temperature,ifdifferentfrom30 CX i) the degree ofprotection (only ifdiffer
42、entfromIP20) X j)energy limitingclass(e.g.3) ina square in accordance with AnnexZA,ifapplied X ak)breaking capacity on one pole ofmultipole circuit-breakersin case ofshort-circuittoearth Icn1X l)timeconstantT15 within a rectangle,ifapplicable,associated with the marking for the short-circuitcapacity
43、 atthetime constantof15 ms(see example3 in 6.1) the position ofuse (symbolaccording to EN60051),ifnecessary X indicationofthe terminalfor the neutralwith “N“X additionalmarking ofperformanceto other standardsX aIcnand the energy limiting class,ifapplied,shallbeboth onthedevice and combined together.
44、 6 EN 60898-2:2006 7 Standard conditions for operation in service Clause 7 of Part 1 applies. 8 Requirements for construction and operation Clause 8 of Part 1 applies with the following modifications: 8.1.3 Clearances and creepage distances (see annex B) Addition of the following note 4 to Table 4:
45、NOTE 4 The values given for 230 V, 230/400)V and 400 V a.c., are also valid for 220 V and 440 V d.c. 8.6.1 Standard time-current zone Replacement: Table 7 Time-current operating characteristics Test Type Test current a.c. Test current d.c. Initial condition Limits of tripping or non-tripping time Re
46、sult to be obtained Remarks a B, C 1,13 InCold* t 1 h (In 63 A) t 2 h (In 63 A) No tripping b B, C 1,45 InImmediately following test a t 63 A) Tripping Current steadilyincreased within 5 s c B, C 2,55 InCold* 1 s 32 A) Tripping d B C 3 In5 In4 In7 InCold* 0,1 32 A) 0,1 32 A) Tripping Current establi
47、shed by closing an auxiliary switch e B C 5 In10 In7 In15 InCold* t 0,1 s Tripping Current established by closing an auxiliary switch * The term “cold“ means without previous loading, at the reference calibration temperature. 8.8 Performance at short-circuit currents Replacement of the third paragra
48、ph: It is required that circuit-breakers be able to make and to break any value of current up to and including the value corresponding to the rated short-circuit capacity at rated frequency, at a power-frequency recovery voltage equal to 105 % (5 %) of the rated operational voltage and at any power
49、factor not less or any time constant not greater than the appropriate limit of the range stated in 9.12.5; it is also required that the corresponding values of I2t lie below the I2t characteristic (see 3.5.13). 7 EN 60898-2:2006 9 Tests Clause 9 of Part 1 applies with the following modifications: 9.1 Type tests and test sequences Replacement of the second paragraph after “Table 8 (void)“: The test sequences and the number of samples to be submitted are stated in An
