The problem is simply put: how can I insure my photograpic equipment (3 dslrs, 7 high-end lenses) for months on end away from "home"? I am a UK resident but live on-and-off in Oslo, for more than half the year.
I have no fixed abode in Norway but if I travel home to the UK or elsewhere in Europe, i will leave some or all of my gear in my (temporarily) rented home in Oslo. This "home" is a series of rental properties (Airbnb or similar), so I have no tenancy agreement, and therefore I cannot get home contents insurance for my "home" in Oslo.
Most insurance policies, even those specialised for professional photographers, have the concept of a "trip" of a fixed length (90 days is a common maximum) during which the gear is covered, but some of my gear never goes home to the UK at all, merely being moved from one flat to another while I come and go.
How do I get cover for the equipment which I frequently leave in Norway?