Unfused spur in radial circuit from DB?

[Rampage]

Can I use an unfused spur direct from the DB on a 20A 2.5mm radial?
In the BGB it says you can on the 4mm radial but it isn't clear if you can or can't on a 2.5mm radial?!

Thanks.

 

[Rampage]

I think so, I happen to have read up on this in the last few days.
I don't need to use a high integrity CPC connection in the end