A fused service disconnect will be placed outside a medical clinic building nearest the point of entry (the inside is too cluttered). Is it permissible to lock "on" the service disconnect so vandals are not able to tamper with the operation of the disconnect? Downstream of the service disconnect, inside the building are electrical panels that the occupant has ready access to. I believe Sec. 230.92 permits this, and if so, I wonder in the back on my mind "Is it safe to do this?" Thanks