Connecting generators to caravans

Hello everyone, I would like to connect a power generator (230V, 8.7 A) to my WW. Is there something important to consider? In the WW itself, to my knowledge, there are no 230V devices, but only 12V devices in it. However, the WW was already connected by the previous owner to the 230V connection. In my opinion, the generator for the few consumers – a few lamps are enough – or? My consideration is this: In the caravan itself 12V devices work, in the awning I want a small install 230V TV, the satellite system is running (allegedly, as not yet unpacked – was there with the WW) to 12 V. Is there a better extension cable from the generator to the awning and there in the 230V connection of the WW? Don’t get me wrong if I ask so much, but I don’t want the electrics in the WW suffers. MFG WinniBoo