IEEE C37.48

Description / Abstract: This guide presents information on the application, operation, and maintenance of high-voltage fuses (above 1000 V), distribution enclosed single-pole air switches, fuse disconnecting switches, and accessories for use on ac distribution systems. Devices with rated maximum voltages to 169 kV are covered. These guidelines apply to the following specific types of equipment:

a) Distribution and power class expulsion-type fuses.

b) Distribution and power class current-limiting type fuses.

c) Distribution and power class fuse disconnecting switches.

d) Items a) through c) used in fuse-enclosure packages (see types listed in 1.3 and 1.4).

e) Fuse supports, and fuse mountings, of the type intended for use with distribution and power class fuses, and fuse disconnecting switches.

f) Removable switch blades of the type used exclusively with distribution class oil cutouts, power class fuses, and distribution class fuse disconnecting switches.

g) Fuse links of the type used exclusively with distribution class oil cutouts, power class fuses, and distribution class fuse disconnecting switches.

h) Distribution class oil cutouts.

i) Distribution class enclosed single-pole air switches.

j) Distribution and power classes of expulsion, current-limiting and combination external capacitor fuses used with a capacitor unit, groups of units, or capacitor banks.