Steve:
If this room was located at many places I've seen (after all, who amongst us can resist the urge of following the sound of a humming transformer to it's source), the sign would read "PLEASE STORE AS MUCH TRASH AND RUBBISH AS POSSIBLE IN THIS ROOM". [Linked Image]

Seriously, At my place of work, such rooms are marked "ELECTRICAL EQUIPMENT: AUTHORIZED PERSONNEL ONLY". Rooms which also contain 12470 Volt primary transformers are also marked "DANGER HIGH VOLTAGE - KEEP OUT"

Mike (mamills)

[This message has been edited by mamills (edited 07-18-2002).]