IEEE C37.41

Abstract

This standard specifies design test requirements for high-voltage (above 1000 V) fuses, distribution enclosed single-pole air switches, fuse disconnecting switches, and accessories for use on alternating-current distribution systems. The devices to which this standard applies are as follows:<br>a) Distribution and power class expulsion type fuses<br>b) Distribution and power class current-limiting type fuses<br>c) Distribution and power class fuse disconnecting switches<br>d) Item a) through item c) used in fuse enclosure packages (see types listed in 1.2 and 1.3)<br>e) Fuse supports, fuse mountings, and fuse hooks of the type intended for use with distribution and power class fuses, and fuse disconnecting switches<br>f) Removable switch blades of the type used exclusively with distribution class oil cutouts, power class fuses, and distribution class fuse disconnecting switches<br>g) Fuse links when used exclusively with distribution class oil cutouts, power class fuses, and distribution class fuse disconnecting switches<br>h) Distribution class oil cutouts<br>i) Distribution class enclosed single-pole air switches<br>j) Distribution and power classes of expulsion, current-limiting, and combination external capacitor type fuses used with a capacitor unit, groups of units, or capacitor banks.<br>The distribution and power class expulsion type fuses listed previously in item a) through item j) are the same as those covered in IEC 60282-2 (1995-09)¹. The distribution class expulsion type fuses are the same as the IEC 60282-2 class &#8220;A&#8221; fuses, and the power class fuses are the same as the IEC 60282-2 class &#8220;B&#8221; fuses. At present, IEEE standards do not cover the class &#8220;C&#8221; fuses listed in IEC 60282-2 (1995-09). Some of the current-limiting type fuses listed above are the same as those covered in IEC 60282-1 (1994-12). IEEE Std C37.41-2000 contains specific requirements for more types of current-limiting fuses than are covered in IEC 60282-1 (1994-12). Use caution if devices specified and tested per ANSI/IEEE standards are compared to those specified and tested per IEC standards, as they may or may not be the same.