Fusing guidance for mains on PCB
On the face of it the fuse ratings and PCB track current ratings seem OK .Careful there is a trap that I have seen several times Now imagine that your load is a short circuit .Sure your fuse will blow in maybe 20ms .Check your fuse curves .What you do not want is the PCB tracks to blow before the fuse under such fault conditions .So I squared T is also a PCB track rating criterion .When you ballpark calc the melting temp of the PCB copper ,The resistance of the trace ,The Blow time of your fuse  and the heat capacity of your trace you may want bigger tracks than you think .If you cant be bothered doing the calcs or are worried about the accuracy of the calcs then test under fault conditions to avoid feild failure under such conditions .