Semicolons should be used to join two complete sentences while having a “comma-like” flow (e.g. “I like cake; it tastes good”). I personally tend to use them quite a lot (despite being American). However I generally don’t put more than one in a sentence, which I think is somewhat standard. That being said, I don’t think it’s considered an error, per se, to do so.
if you have a list where at least one element has a comma in it you should use the semicolon to separate the elements, like the sibling comment by spiceoflife says, so that would usually produce multiple semicolons in a single sentence.
