A notation was added to this definition to allow a key to be used to gain access to electrical equipment. Whether if it is a room or a enclosure, the equipment is still considered a readily accessible if you need a key. We used to fight over the definition all the time and I always had a scenario that would help in understanding this definition. My scenario was that when you left for work this morning did you lock the doors in your house, if so according to some, your circuit breakers in your panel are not readily accessible. So the use of a key to gain access to a room, a generator, or some other type of electrical equipment or enclosure is ok.
I’ve seen generators like the one pictured below with a disconnect next to it because the breaker inside was not readily accessible.
Accessible, Readily (Readily Accessible). Capable of being reached quickly for operation, renewal, or inspections without requiring those to whom ready access is requisite to take actions such as to use tools (other than keys), to climb over or under, to remove obstacles, or to resort to portable ladders, and so forth.
Till next time be safe work safe
Jake