Recently, our firm was hired by a property management firm to replace a 120 volt single phase 400 amp distribution panel at a high rise condominium complex.

While tracing out all of the loads on this distribution panel, we found a plug fuse panel that serviced the common areas in the highrise. We noticed that the old fuse panel was modified with switches and even a dimmer switch for the common area lighting.

This is one of the most interesting modifications I ever saw.

Jim Passolano
S/D Engineers Midwest