IEEE C37 46-2010 en Specifications for High-Voltage ( 1000 V) Expulsion and Current-Limiting Power Class Fuses and Fuse Disconnecting Switches《高压(1000 V)冲出式和电流限.pdf
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3、g3g38g82g80g80g76g87g87g72g72g44g40g40g40g22g3g51g68g85g78g3g36g89g72g81g88g72g3g49g72g90g3g60g82g85g78g15g3g49g60g3g20g19g19g20g25g16g24g28g28g26g15g3g56g54g36g3g3g21g28g3g50g70g87g82g69g72g85g3g21g19g20g19g38g22g26g17g23g25g55g48IEEE Std C37.46-2010 (Revision of ANSI C37.46-2000) IEEE Standard Spe
4、cifications for High-Voltage (1000 V) Expulsion and Current-Limiting Power Class Fuses and Fuse Disconnecting Switches Sponsor Switchgear Committee of the IEEE Power +1 978 750 8400. Permission to photocopy portions of any individual standard for educational classroom use can also be obtained throug
5、h the Copyright Clearance Center. Introduction This introduction is not part of IEEE Std C37.46-2010, IEEE Standard Specifications for High-Voltage (1000 V) Expulsion and Current-Limiting Power Class Fuses and Fuse Disconnecting Switches. This standard is a revision of ANSI C37.46-2000, to bring it
6、up to date and in line with present day requirements for high-voltage expulsion and current-limiting power class fuses, fuse links and fuse disconnecting switches. This standard was previously developed by the NEMA High Voltage Fuse Technical Committee. As of 2003 the responsibility for this standar
7、d has been transferred to the IEEE High-Voltage Fuse Subcommittee. Liaison was maintained with the International Electrotechnical Commission (IEC) during the development of the revisions in order to incorporate the latest thinking up to the time of publication. The Switchgear Committee of the IEEE P
8、ower dielectric design tests specified in 4.1; and for fuse supports having fuse holders, the interrupting design tests specified in 4.2 b) Rated continuous current, determined by temperature-rise design tests at rated continuous current as specified in 4.4 c) Rated lightning impulse voltage basic i
9、mpulse insulation level (BIL) determined by the impulse withstand tests specified in 4.1 3.2 Ratings of fuse holders, fuse units, refill units, and fuse links for power class fuses The ratings of fuse holders, power fuse units, and fuse links for power class fuses shall be determined with tests perf
10、ormed using the usual service conditions defined in IEEE Std C37.40, except where other conditions are specified, and shall include the following: a) Rated maximum voltages, as specified in 3.3.1, and determined by the current interrupting design tests specified in 4.2 b) Rated continuous current, d
11、etermined by the temperature-rise design tests specified in 4.4 and, if applicable, in accordance with the preferred ratings listed in 3.3.3 and the time-current-characteristics specified in 5.2, 5.3, and 5.4 c) Rated frequency, as specified in 3.3.4 and validated by the design tests specified in IE
12、EE Std C37.41-2008 d) Rated maximum interrupting current and rated minimum interrupting current as follows: 1) Rated maximum interrupting current for fuse holders, fuse units, and refill units as specified in 3.3.5 and as determined by the current interrupting design tests specified in 4.2 2) Rated
13、minimum interrupting current, for backup current-limiting power fuses, as specified in 3.3.6 and as determined by the current interrupting tests specified in 4.2 6IEC publications are available from the International Electrotechnical Commission, Case Postale 131, 3, rue de Varemb, CH-1211, Genve 20,
14、 Switzerland (http:/www.iec.ch/). IEC publications are also available in the United States from the American National Standards Institute, 25 West 43rd Street, 4th Floor, New York, NY 10036, USA (http:/www.ansi.org/). 4 Copyright 2010 IEEE. All rights reserved. IEEE Std C37.46-2010 IEEE Standard Spe
15、cifications for High-Voltage (1000 V) Expulsion and Current-Limiting Power Class Fuses and Fuse Disconnecting Switches Power class current-limiting fuses have three different subclasses that depend on the low-current interrupting capability of the fuse. The three subclasses are backup current-limiti
16、ng fuses, general-purpose current-limiting fuses, and full-range current-limiting fuses. Only backup current-limiting fuses have a rated minimum interrupting current. The other two types have low current capabilities as described in their definitions. Refer to IEEE Std C37.40 for the definitions of
17、these devices. 3.3 Preferred ratings and performance requirements for power class expulsion and current-limiting type fuses and fuse disconnecting switches 3.3.1 Rated maximum voltage The preferred rated maximum voltages for future designs of power class fuse supports, fuse disconnecting switches, f
18、use units, refill units, and fuse links shall be 2.8 kV, 5.5 kV, 8.3 kV, 15.5 kV, 17.2 kV, 23.0 kV, 27.0 kV, 38.0 kV, 48.3 kV, 72.5 kV, 121.0 kV, 145.0 kV, and 169.0 kV. The preferred rated maximum voltages for designs of power class fuse supports, fuse disconnecting switches, fuse units, refill uni
19、ts, and fuse links now being manufactured and in use shall be 2.8 kV, 5.5 kV, 8.3 kV, 15.5 kV, 17.0 kV, 17.2 kV, 25.8 kV, 38.0 kV, 48.3 kV, 72.5 kV, 121.0 kV, 145.0 kV, and 169.0 kV. Presently some R-rated fuses (see 5.1) have maximum voltages of 2.54 or 5.08 (5.1) kV and some indoor fuses and disco
20、nnecting switches are rated 15.0 kV maximum. The rated voltage of a power class fuse support and a fuse disconnecting switch shall correspond to the rated voltage of either the fuse unit or the supporting insulator unit, whichever is lower. 3.3.2 Rated continuous current for power class fuse support
21、s and fuse disconnecting switches The preferred rated continuous current for power class fuse supports and fuse disconnecting switches shall be 10 A, 25 A, 100 A, 200 A, 300 A, 400 A, 450 A, 600 A, 700 A, and 720 A. 3.3.3 Rated continuous current for power class fuse units, refill units, and fuse li
22、nks The preferred rated continuous current for power class fuse units, refill units, and fuse links, including those that are E-rated (see 5.1) and those of other manufacturer-defined TCC specifications, shall be 0.5 A, 1 A, 2 A, 3 A, 5 A, 7 A, 10 A, 15 A, 20 A, 25 A, 30 A, 40 A, 50 A, 65 A, 80 A, 1
23、00 A, 125 A, 150 A, 200 A, 250 A, 300 A, and 400 A. R-rated fuses are designated by the use of an “R” number and are not assigned a rated continuous current. IEEE Std C37.40 defines allowable continuous current as the current a fuse shall be capable of carrying, without exceeding the total temperatu
24、re limits and maximum temperature rise values specified in IEEE Std C37.40. When an allowable continuous current is specified for a fuse, it is normally the maximum current the fuse can carry continuously. Table 1 specifies the minimum allowable continuous current each fuse shall be capable of carry
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