230.40 Ex1 deals with services of differnt voltages or phases.
I have no idea what pages 129, 130, or 131 have to do with this. Is that from the 2002 NEC?
Service entrance conductors are the conductors that are fed from the POCO overhead or underground feed. (See the definition in article 100) There are only Six disconnects maximum (six hand movements) allowed to turn off the power.