Data Cables Conduit – DOB?

I need to put several data (low voltage) cables through the house. So I went ahead and bought 3/4″EMT and conduit bender. Do I need permit/etc to put conduit in place? Do I need permit/etc to put cables in it?

I mean these are not power cables. Just CAT6 network cable, A/V security camera cable and thermostat cable for next year’s heating system replacement.

Am I in danger to get $5K fine from DOB? Do I need to ground the conduit and if yes – then how? Can I run any of these cables outside of the conduit?

By bobjohn | 08/21/2009 9:52 AM