res wiring

[memike]

220 ac 10/3 wire going through walls and into breaker box can they go through the same hole?
may insulated wires lay next to each other for small distance or not at all?

[bennie]

Are you saying the wires are not covered with a sheath? or conduit?

[rrrusty]

Could you be more specific on the installation. How many of what kind of cables are you talking about?