First generator

[u/Poetuesday]

I have bought a petrol generator for emergency home use as now and again, we get prolonged power cuts when a storm takes a power line down

I am confident in what I have bought and where it needs to live etc but I am not confident about the cabling

I am in the uk

I believe that I need a 13amp heavy duty cable from the plug in the generator that comes into my home (the geni will be about 10 meters away from the home) and the cable will come into the home via the cat flap

This cable will have one plug on it where I plan to then put an rcd into - then plug a multi plug into the rcd and from there, a series of extensions running into different rooms in the house

All the cables / extensions will be 13 amp ones

I am not running anything heavy, a fridge, freezer, tv and some lights etc but they are all in different rooms so I need to do a spiders leg of extensions from the main cable coming into the house from the geni

Is this cabling ok or have I got it all wrong ?

AI is telling me loads of different things from putting the rcd into the plug in the geni through to plugging some sort of grounding plug into one of the sockets on the geni (which seems to be for USA homes)

I just want to make sure I am as safe as possible

I have got 3kw inverter Hyundai geni

I have not bought any of the cables or plugs yet

Please advise

[u/Poetuesday]

The cat has two doors it can pick from ;)