Laying some cable.

I wish I could say what these are for. I kinda guess that the blue ones are for air conditioning units and the orange ones are for normal appliances. But I cannot say that with any authority. Some of this cable piping will also be used for stereo speakers. I really don't like cables running all over the floors so we've asked the electrician to leave piping through the walls so that won't happen.
紅色的藍色的電線有啥差別勒??