Normally I would say, don't worry, if the fuse blows then and only then worry about it, as often if a fuse blows the DNO will replace it with a larger fuse if only 60A. However with servers likely you don't want to lose power, so this then becomes something which your employer will need to consider, there are many problems, including change of use, the house will become a combined domestic and commercial premises, you would need to apply for change of use, councils can get very funny about change of use, locally a political party got fined because they were using a shop as an office without applying.
There are some odd rules, where I live you can use the house to run a business of doctor, dentist or solicitor, but nothing else, sole traders with vans parked so it can be seen they are running the business from home have been caught out, it is not just the electric bit. I am sure there are 1000's who now work from home with the traditional cottage industry, but deeds are not all the same, and it may be permitted in one street and not in another, the main problem is first they have to catch people, which is in most cases near impossible. In the main it means some one complaining, I am not permitted to store a caravan at front of my house, I do and so do many others in the street, unless some one complains it is unlikely we will get stopped.
The problem is you can't untell people, once you have said something it's done. So you need to consider who you inform, and what you say, some times better to just do nothing, the question is, how important is it that server does not loose power?
at zero cost to you !
