The labeling wouldn't be all that difficult to do- we practically have to do it anyhow. But it WOULD become a big liability to both label and maintain; the first time someone secures breaker #5 because it's on the marking and gets a shock because he forgot to frisk and it was actually on breaker #6, people will get sued. But man oh man it helps in lifecycle work! A little extra drafting dollars up front can save untold man-days in trying to trace circuits out later.
When the electrician comes after the fact, it will be easy for him to red-line changes he's made to the drawings; even easier if an electronic copy is left (I saw a $10 thumb drive left in a PLC box yesterday with all the docs and software for the PLC on it; what a great idea!). Whether or not you can get the building contractors to create the installation drawings up-front (and the electrician to red-line his deviations!) with no cost benefit to him is another story entirely.
[This message has been edited by SteveFehr (edited 12-09-2005).]
