HiIs it advisable to run 110VAC cable from the sub stationa and 110VAC cable from generator (clean) in the same conduit ; one of them for lighting and the other for CCTV; the concern is if the one for lighting is not clean (not consisting of a pure sine wave or carrying interference) would that effect the power line of the CCTV and has an effect on the picture? even though both are 110VAC.the installation is over seas where the power from the station is not consistence.
if all the wires are rated the same you won't have a problem, but make sure you don't share the neutral with both circuits or you could get some interference. Run separate neutrals for each circuit and make sure your CCTV is on a dedicated circuit
If both are simple power lines, then you won't have a problem. The only time you need to be cautious is when you are running a high-voltage power cable and a signal cable alongside each other e.g. a 110VAC cable alongside a 4-20ma signal line from a transmitter. The reason for the potential interference is that the power cable emits an electro-magnetic field which can potentially cause induction in the cable alongside it and effect the signal with an induced EMF. The likelihood of this depends on the cable type, screening and correct earthing measures. It's a good bet to never run a power and signal cable alongside each other, and if you have no other choice, seperate them by means of a makeshift Faraday Cage. If both are doing nothing other than supplying power to the system though, then any induced EMF will be so minute, it will not likely affect the system in any way.
if the two are not shielded from each other they will cause interference... run two seperate metal conduits,, or use shielded AC cable in the same conduit ,, ground the shields and the conduit!!!
