‘ship — I don't think there is a magic number that defines what's good and what isn't. Have SoCal AHJs specified one? Again, a degree of common sense should apply, but sometimes numbers get interpreted/applied way past their original intent.
I have a personal example of how my bright ideas were well out of bounds. Years ago at a IAEI-chapter meeting, a presentation was delivered on flood restoration of residential housing in a low-lying area.
There was considerable discussion on what was considered acceptable and what wasn’t. Part way through the discussion, I asked why a megger was not used to simply check all the wring before power up, for that was my universal, kneejerk, looking-down-a-drainpipe response in an industrial setting of unit substations and medium-sized motors. Well, it turned out my comment was way out of place, for almost none of the older wiring would have stood up to the potentially extreme sensitivity of a 500V megger test. I ‘ate some crow’ that time.
"Highly situational" may be a fitting buzzphrase, here.
[This message has been edited by Bjarney (edited 07-23-2003).]