Burnt fuse contact

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normbac

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Went on a service call for partial power out in office building @ 6pm.Fire dept. was called due to smell of smoke in elec. rm. Shutdown switchboard, Pullout fuse 3 phase 240/120 one fuse contact was fried causing damage to pullout , wire was severed off one phase of female socket (Sorry not clear on proper verbage for these parts) Any info on difficulty in replaceing the pullout fuse casing, also time frame. I was able to secure it for now but need to go back in the morn. to evaluate.
 
What Class & Amperage of Fuse?
What is FLA of the circuit?
What was the ambient temp inside the disco ?
What time of day did this occur?
Have you checked the wire terminations for tightness?
 
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