They may hate to give out this information, but any piece of equipment
with a NEBS level 3 rating already has this information. I'm not asking
for vendors to do the full, burn the box, NEBS testing. But having the
power drain data sheet would be very useful.
This is really a customer demand issue. If customers started demanding
vendors supply a full NEBS-like space and power planning data sheet, we
would get the information. But customers don't, so we don't.
While this may be a deliberate decision by customers, who would rather
save the money on equipment and spend a bit more on "extra" electrical
infrastructure, I don't think so. I suspect its because customers have
never known they could ask for such a thing.