Why LSIG on lines to loads but not incoming 13K lines?

[eegirlsrock]

I would like to know why LSIG interrupts are used from MCC to loads (low-med voltage) but not on incoming lines. Thank you!

 

[JBUDA54]

Unless the 480V Switchgear is a long way away IMHO MCC Incoming line breakers are a waste of money. In the event that the switchgear is a long way away then the MCC incoming line breaker is simply a means of disconnect not a form of protection. The Switchgear breakers are your protection devices.