I'm with Carole Nash.
Just checked my schedule & I have automatic cover for 45 days a year for EU, Norway & Switzerland.
This is provided my main residence is in the UK... so you'd be in Norway for 5 months & 30 days then......
You have to contact CN if you want cover for a country other than those above & for longer than 45 days so they can most likely get more money out of you!