230-70(a) covers the entrance of service cables. It gives no footage as to how far inside a building you can take the conductors, but leaves that up to each jurisdiction, some are more than others, in VA we tend to the 5 foot rule.
Uh....is that a fire wall with the branch circuitry run through it? 300-21 says you got away with something if so. Also BOCA code if your area adheres to that, you have to seal with fire rated equivalent materials any hole you make in the fire wall.
230-6 states that a conductor encased in 2" of concrete (or Brick) is considered outside the building so you can run it as far as you like.
These are obviously not High Voltage conductors, but if they were the "National Electrical Safety Code" offers a bit tougher standard, just for your knowledge.
1999 NEC
[This message has been edited by George Corron (edited 03-06-2002).]
