Fuse Cutout:

fuse_cutout

 

 

Distribution fuse cutouts have the ratings as defined in ANSI/IEEE Standard C37.40 and as specified in ANSI 37.42 :

1   Service Conditions

  • Temperature – up to 40oC
  • Altitude – up to 1,000 meters

2        Rated Voltage

  • Nominal System Voltage – 11,000 GrdY/6,350 volts
  • Rated Maximum Voltage – 15,000 volts
  • Low Frequency Withstand KV, RMS –

dry, 60 sec. – 35

wet, 10 sec. – 30

3    Rated Impulse Withstand Voltage – 95 KV.

4    Rated Frequency – 50 Hertz.

5    Rated Continuous Current – 100 amperes.

6    Rated Short Time Current

  • Momentary (1 cycle) – 10,000 amperes
  • 15 cycles – 7,100 amperes
  • 3 seconds – 1,600 amperes.

7    Rated Symmetrical Interrupting Current – 7,100 amperes.