These days, there are cases where absence of power creates a greater hazard, such as loss of area lighting. A trade magazine in the eighties discussed litigation involving a disconnect switch serving a bilge pump that was turned off by a vandal, causing flooding and significant property damage.
Some externally operable switches have an index mark on the handle flange/lockplate for field drilling a shackle hole for “on” padlocking.
http://www.squared.com/us/products/...52566c50073d833/$FILE/3100BR9801R601.pdf page 5/item 22—
The switch can also be modified so that the switch can be locked in the ON position if required by the application. [This message has been edited by Bjarney (edited 01-09-2003).]
